tannic acid
tsca definition 2008: gallic acid derivatives found in nutgalls, bark and other plant parts, especially oak bark. Clarifying agent for beer and wine; flavour enhancer, colour modifier, pH control agent. Permitted boiler water additive in generation of steam for use in food contact processes Tannins are astringent, bitter-tasting plant polyphenols that bind and precipitate proteins. The term tannin refers to the source of tannins used in tanning animal hides into leather; however, the term is widely applied to any large polyphenolic compound containing sufficient hydroxyls and other suitable groups (such as carboxyls) to form strong complexes with proteins and other macromolecules. Tannins have molecular weights ranging from 500 to over 3,000. Tannins are usually divided into hydrolyzable tannins and condensed tannins (proanthocyanidins). At the center of a hydrolyzable tannin molecule, there is a polyol carbohydrate (usually D-glucose). The hydroxyl groups of the carbohydrate are partially or totally esterified with phenolic groups such as gallic acid (in gallotannins) or ellagic acid (in ellagitannins). Hydrolyzable tannins are hydrolyzed by weak acids or weak bases to produce carbohydrate and phenolic acids. Condensed tannins, also known as proanthocyanidins, are polymers of 2 to 50 (or more) flavonoid units that are joined by carbon-carbon bonds, which are not susceptible to being cleaved by hydrolysis. While hydrolyzable tannins and most condensed tannins are water soluble, some very large condensed tannins are insoluble. Tannins may be employed medicinally in antidiarrheal, hemostatic, and antihemorrhoidal compounds. Also, they produce different colors with ferric chloride (either blue, blue black, or green to greenish black) according to the type of tannin. Examples of gallotannins are the gallic acid esters of glucose in tannic acid (C76H52O46), found in the leaves and bark of many plant species. Foods with tannins include tea, wine and some fruits (Wikipedia). [HMDB]
  • Beijing Lys Chemicals
    • Beijing Lys Chemicals Co, LTD.
      From Grams to Tons
      Fine chemical high-tech company which contains R&D, production, and sales.
      BEIJING LYS CHEMICALS CO, LTD, established in 2004, is a fine chemical high-tech company which contains R&D, production, and sales. We mainly engaged in export and technology development of flavor and fragrance materials and pharmaceutical intermediates. We have nearly 500 kinds of products, from grams to tons, exported to USA, Europe, South Asia and etc. And we custom manufacture new products according to customers’ needs, and serve good quality products and service. Our goal is to become a fine chemical enterprise which could provide special products and services.
      Email: Mr. Jia
      Email: Mr. Guo
      Voice: 86-10-68418738
      Fax: 86-10-68418739
      Mr. Guo86-10-68483445
      Mr. Guo86-10-68418739
      10775 Tannic acid
  • Charkit Chemical
    • Charkit Chemical Corporation
      The Specialty Chemical Specialists
      Explore this website to discover the products and services that Charkit provides for your industry and please contact us directly to find out how we can be of service to you.
      Since 1982, Charkit has been committed to expanding the markets we serve as our roster of products and services continues to grow with us. Our substantial portfolio of personal care ingredients now include a wide array of luxury and exotic components to compliment the key products we have always offered. We have expanded our offerings to the nutraceutical, industrial, and resin markets with a growing roster of versatile and unique ingredients. We continue to lead the way in our traditional markets such as Metal and Water Treatment, Imaging, Flavor & Fragrance, Aroma and Food. Our Pharmaceutical offerings continue to expand, still anchored by the Boronic Derivatives that meet the demands of Suzuki coupling reactions. Please contact us to learn how we can help you reach your goals.
      Email: Sales
      Voice: 203-299-3220
      Fax: 203-299-1355
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  • Fleurchem
    • Fleurchem, Inc.
      Have A Flavorful Day
      A leading global manufacturer and supplier of ingredients for Flavors, Fragrances, AromaTherapy, Foods, Beverages, Personal Care Products, and other uses.
      Operating out of the 200,000 sq. ft., former Hercules/PFW facility in Middletown, NY; Fleurchem produces a full range of natural isolates, synthetic chemicals & specialities, essential oils and flavors. Additionally, the company performs toll manufacturing, as well as custom chemical synthesis for a wide range of clients.
      Email: Information
      US Voice: 845-341-2100
      US Fax: 845-341-2121
      tannic acid natural
  • Lluch Essence
    • Lluch Essence S.L.
      A family company dedicated to sales and distribution
      Flexibility, availability, price and quality.
      Flexibility, availability, price and quality make LLUCH ESSENCE S.L. one of Europe’s references when it comes to essential oils and aroma chemicals, and it is now well known all around the world.
      Email: Info
      Voice: 34 93 379 38 49
      Fax: 34 93 370 65 04
  • Moellhausen
    • Moellhausen S.P.A.
      Innovation and commitment in the name of excellence.
      After 50 years in business, Moellhausen stands out as one of the world’s leading family-run companies in the industry of flavors and fragrances, raw materials, and specialties. My personal history is inextricably bound to that of the company, and I continue to dedicate all my energy to it along with our partners and collaborators who have supported us thus far with dedication, passion, love, and experience. Continuous investments and a professionalism aimed at achieving the highest levels of performance in service and quality, along with that same dedication, passion, love, and experience, have together enabled us to reach the absolute avant-garde level that characterizes Moellhausen today, recognized worldwide for its modernity, innovation, creativity, and respect for the environment and the safety and rights of those who work with us. As President and CEO of the company for 32 years, I offer a well-deserved thank you to all of our numerous customers, suppliers, employees, and company friends for helping to sustain our unstoppable and honorable growth. And it is with the support of all of our stakeholders that we will confidently continue to pursue our commitment to further advancing the excellence that our industry demands.
      Voice: +39 039.685.6262
      Fax: +39 039.685.6263
      A network of knowledge to grow together
      Sustainability is at the foundation of a
      Pervasive technology and total control
      101010 TANNIC ACID
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    Flavor Demo Formulas
CAS Number: 1401-55-4Picture of molecule
Other: 61790-06-5
ECHA EINECS - REACH Pre-Reg: 215-753-2
Nikkaji Web: J1.666.475H
Beilstein Number: 8186396
MDL: MFCD00066397
CoE Number: 746
XlogP3-AA: 6.20 (est)
Molecular Weight: 1701.21364000
Formula: C76 H52 O46
BioActivity Summary: listing
Category: flavoring agents and adjuvants, curing and pickling agents, flavor enhancers
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar: Search
Google Books: Search
Google Scholar: with word "volatile"Search
Google Scholar: with word "flavor"Search
Google Scholar: with word "odor"Search
Perfumer and Flavorist: Search
Google Patents: Search
US Patents: Search
EU Patents: Search
Pubchem Patents: Search
PubMed: Search
NCBI: Search
 FDA/DG SANTE Petitions, Reviews, Notices:
184.1097 Tannic acid (hydrolyzable gallotannins) View-review
JECFA Food Additive: Tannic Acid
GSFA Codex: Tannic acid (Tannins) (181)
DG SANTE Food Contact Materials: tannic acid
FEMA Number: 3042  tannic acid
FDA Regulation:
Subpart D--Specific Usage Additives
Sec. 173.310 Boiler water additives.

Subpart B--Listing of Specific Substances Affirmed as GRAS
Sec. 184.1097 Tannic acid.
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Physical Properties:
Appearance: tan to brown powder (est)
Assay: 98.00 to 100.00 % 
Food Chemicals Codex Listed: No
Melting Point: 218.00 °C. @ 760.00 mm Hg
Flash Point: 32.00 °F. TCC ( 0.00 °C. ) (est)
logP (o/w): 13.327 (est)
Soluble in:
 water, 512.4 mg/L @ 25 °C (est)
Insoluble in:
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Organoleptic Properties:
Synonyms   Articles   Notes   Search   Top
Cosmetic Information:
CosIng: cosmetic data
Cosmetic Uses: astringents
masking agents
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Abbey Color
Tannic Acid, Tannins
Odor: characteristic
Use: Tannic Acid is white or yellowish astringent powder (molecular formula: C14H10O9) derived from nutgalls, or a lustrous yellowish to light brown amorphous, powdered, flaked, or spongy mass (molecular formula: C76H52O46) made from the bark and fruit of many plants.
Beijing Lys Chemicals
Tannic acid
BOC Sciences
For experimental / research use only.
Tannic Acid
For experimental / research use only.
Tannic acid
Charkit Chemical
Charkit Chemical
Charkit Chemical
Charkit Chemical
Charkit Chemical
Charkit Chemical
Charkit Chemical
For experimental / research use only.
Tannic Acid from Plants ≥98%
Odor: characteristic
Use: The tannic acids were found to show potent inhibitory activity against HIV RT. Thermally processed tannic acid (PTA) showed stronger antioxidant capacity and antimicrobial activity by Rancimat and disc diffusion tests than fresh tannic acid (FTA). Soybean oil treated with PTA had 33-84% longer induction period (IP) of oxidation (8.0-14.7 h) than FTA treated oil (6.0-8.0 h), while untreated oil (control) showed only 5.9 h IP. The IP was increased (p < 0.05) with increased processing time up to 15 min, with no changes thereafter. The PTA samples had strong antimicrobial activity (inhibition zone diameter 12 mm) on 10 tested human pathogens while the FTA samples showed antimicrobial activity only on two strains, Salmonella Typhimurium (ATCC 14028) and Enterobacter sakazakii MSDH over 1- and 2-day incubation periods. 13C NMR spectra showed that PTA had a higher content of hydrolysed aromatic carboxylic acid groups than FTA. The results showed that thermally processed tannic acid for 15 min had about 67% higher antioxidant capacity and about 50% higher antimicrobial activity than its fresh counterpart. Thermal processing could be useful for enhancing antioxidant capacity and antimicrobial activity of hydrolysable polyphenols in natural plants. Gallic acid was less toxic (w/w) than tannic acid. Comparison of urinary metabolites from rumen and abomasal administration indicated that decarboxylation and reductive dehydroxylation of phenolics occurred principally in the rumen and a significant proportion was totally degraded. Rumen metabolism appeared to prevent toxicity from gallic and tannic acid at dose rates of <0.4 g/kg liveweight per day.
tannic acid natural
Graham Chemical
Tannic Acid
Lluch Essence
Odor: odorless
Flavor: bitter
Penta International
TANNIC ACID 80%, Kosher
Penta International
TANNIC ACID 90%, Kosher
Penta International
Penta International
Penta International
Rung International
Tannic Acid
For experimental / research use only.
Tannic Acid ACS reagent
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Safety Information:
European information :
Most important hazard(s):
None - None found.
S 02 - Keep out of the reach of children.
S 24/25 - Avoid contact with skin and eyes.
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
oral-mouse LD50  5000 mg/kg
Food Research. Vol. 21, Pg. 348, 1956.

intravenous-mouse LD50  130 mg/kg
Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957.

intravenous-mouse LD50  50 mg/kg
Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957.

intraperitoneal-mouse LD50  360 mg/kg
Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957.

intraperitoneal-mouse LD50  320 mg/kg
Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957.

intraperitoneal-mouse LD50  150 mg/kg
Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957.

intraperitoneal-mouse LD50  120 mg/kg
Planta Medica. Vol. 52, Pg. 272, 1986.

intravenous-guinea pig LDLo  40 mg/kg
"Toxicology of Drugs and Chemicals," Deichmann, W.B., New York, Academic Press, Inc., 1969Vol. -, Pg. 571, 1969.

intramuscular-mouse LD50  120 mg/kg
Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957.

intramuscular-mouse LD50  350 mg/kg
Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957.

intramuscular-mouse LD50  > 1600 mg/kg
Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957.

intravenous-mouse LDLo  10 mg/kg
Journal of Pharmacology and Experimental Therapeutics. Vol. 77, Pg. 63, 1943.

oral-mouse LDLo  2000 mg/kg
Journal of Pharmacology and Experimental Therapeutics. Vol. 77, Pg. 63, 1943.

oral-rabbit LD50  5000 mg/kg
American Journal of Veterinary Research. Vol. 23, Pg. 1264, 1962.

oral-rat LD50  2260 mg/kg
"Toxicology of Drugs and Chemicals," Deichmann, W.B., New York, Academic Press, Inc., 1969Vol. -, Pg. 571, 1969.

parenteral-rat LDLo  1400 mg/kg
Food and Cosmetics Toxicology. Vol. 14, Pg. 565, 1976.

Dermal Toxicity:
subcutaneous-mouse LD50 140 mg/kg
Food and Cosmetics Toxicology. Vol. 14, Pg. 565, 1976.

subcutaneous-mouse LD50 140 mg/kg
Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957.

subcutaneous-mouse LD50 > 1600 mg/kg
Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957.

subcutaneous-mouse LDLo 75 mg/kg
Journal of Pharmacology and Experimental Therapeutics. Vol. 77, Pg. 63, 1943.

subcutaneous-rat LDLo 200 mg/kg
Wiener Klinische Wochenschrift. Vol. 62, Pg. 270, 1950.

Inhalation Toxicity:
Not determined
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Safety in Use Information:
Category: flavoring agents and adjuvants, curing and pickling agents, flavor enhancers
Recommendation for tannic acid usage levels up to:
 not for fragrance use.
Use levels for FEMA GRAS flavoring substances on which the FEMA Expert Panel based its judgments that the substances are generally recognized as safe (GRAS).
The Expert Panel also publishes separate extensive reviews of scientific information on all FEMA GRAS flavoring substances and can be found at FEMA Flavor Ingredient Library
publication number: 3
Click here to view publication 3
 average usual ppmaverage maximum ppm
baked goods: -40.00000
beverages(nonalcoholic): 1.1000045.00000
beverages(alcoholic): 6.000001000.00000
breakfast cereal: --
cheese: --
chewing gum: --
condiments / relishes: --
confectionery froastings: --
egg products: --
fats / oils: --
fish products: --
frozen dairy: -160.00000
fruit ices: -160.00000
gelatins / puddings: --
granulated sugar: --
gravies: --
hard candy: 0.20000100.00000
imitation dairy: --
instant coffee / tea: --
jams / jellies: --
meat products: --
milk products: --
nut products: --
other grains: --
poultry: --
processed fruits: --
processed vegetables: --
reconstituted vegetables: --
seasonings / flavors: --
snack foods: --
soft candy: --
soups: --
sugar substitutes: --
sweet sauces: --
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Safety References:
European Food Safety Authority (EFSA) reference(s):
Review of substances/agents that have direct beneficial effect on the environment: mode of action and assessment of efficacy
View page or View pdf
Scientific Opinion on the safety and efficacy of tannic acid when used as feed flavouring for all animal species
View page or View pdf
Outcome of the consultation with Member States and EFSA on the basic substance application for Castanea and Schinopsis tannins for use in plant protection as bactericide, fungicide and nematicide
View page or View pdf
EPI System: View
ClinicalTrials.gov: search
NLM Hazardous Substances Data Bank: Search
Chemical Carcinogenesis Research Information System: Search
AIDS Citations: Search
Cancer Citations: Search
Toxicology Citations: Search
EPA GENetic TOXicology: Search
Env. Mutagen Info. Center: Search
NLM Developmental and Reproductive Toxicity: Search
EPA Substance Registry Services (TSCA): 1401-55-4
EPA ACToR: Toxicology Data
EPA Substance Registry Services (SRS): Registry
Laboratory Chemical Safety Summary : 16129878
National Institute of Allergy and Infectious Diseases: Data
WGK Germany: 2
Chemidplus: 0001401554
EPA/NOAA CAMEO: hazardous materials
RTECS: WW5075000 for cas# 1401-55-4
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NIST Chemistry WebBook: Search Inchi
Canada Domestic Sub. List: 1401-55-4
Pubchem (cid): 16129878
Pubchem (sid): 135262200
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Other Information:
(IUPAC): Atomic Weights of the Elements 2009
(IUPAC): Atomic Weights of the Elements 2009 (pdf)
Videos: The Periodic Table of Videos
tgsc: Atomic Weights use for this web site
(IUPAC): Periodic Table of the Elements
FDA Everything Added to Food in the United States (EAFUS): View
KEGG (GenomeNet): C13452
HMDB (The Human Metabolome Database): HMDB05790
FooDB: FDB001111
Haz-Map: View
VCF-Online: VCF Volatile Compounds in Food
ChemSpider: View
Wikipedia: View
RSC Learn Chemistry: View
Read: Under the conditions of intended use - New developments in the FEMA GRAS program and the safety assessment of flavor ingredients
Read: A GRAS assessment program for flavor ingredients
Read: Sensory testing for flavorings with modifying properties. Food Technology
Read: Criteria for the safety evaluation of flavoring substances
Read: A procedure for the safety evaluation of natural flavor complexes used as ingredients in food: essential oils
Read: FEMA Expert Panel: 30 Years of safety evaluation for the flavor industry
Read: Consumption ratio and food predominance of flavoring materials
•tannic acid of commerce usually contains about 10% water. it is produced from turkish or chinese nutgall, former containing 50-60%, latter about 70%. •technical c.p.; n.f.; fluffy; f.c.c.
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Potential Blenders and core components note
None Found
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Potential Uses:
None Found
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Occurrence (nature, food, other): note
 anise star anise fruit
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 anise star anise seed
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 apple custard apple bark
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 apple custard apple plant
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 apricot fruit
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 avocado leaf
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 basil plant
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 basil tissue culture
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 basswood flower
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 bilberry fruit
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 bilberry leaf
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 borage plant
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 buckthorn sea buckthorn bark
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 buckthorn sea buckthorn fruit
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 buckthorn sea buckthorn shoot
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 butternut bark
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 cacao bean
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 caper plant
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 caraway plant
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 carob bark
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 carob bean
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 cashew bark
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 cassia bark
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 chamomile garden chamomile plant
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 chamomile sweet false chamomile plant
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 cherry sour cherry bark
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 chestnut sweet chestnut bark
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 chestnut sweet chestnut leaf
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 chestnut sweet chestnut nut
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 chicory plant
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 cinnamon ceylon cinnamon bark
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 clove bud
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 clove fruit
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 clove leaf
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 coconut plant
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 coffee bean
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 coriander fruit
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 coriander seed
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 cornmint plant
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 cotton stem
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 cumin seed
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 currant black currant leaf
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 dandelion root
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 date palm fruit
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 date palm plant
Search Trop  Picture
 dill plant
Search Trop  Picture
 eggplant fruit
Search Trop  Picture
 elder black elder leaf
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 evening-primrose herb
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 fig leaf
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 fig stem bark
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 ginkgo biloba leaf
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 gooseberry fruit
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 grape seed
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 guava bark
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 guava leaf
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 guava root
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 guava seed
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 horseradish plant
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 hyssop plant
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 jackfruit bark
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 jambul fruit
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 kiwi fruit
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 loquat leaf
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 lotus indian lotus rhizome
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 mango flower
Search Trop  Picture
 mango seed
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 marjoram plant
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 nance bark
Search Trop  Picture
 olive leaf
Search Trop  Picture
 oregano plant
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 papaya leaf
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 peach fruit
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 peach leaf
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 peppermint plant
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 pistachio plant
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 plum bark
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 pokeweed root
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 pomegranate fruit juice
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 pomegranate leaf
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 pomegranate pericarp
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 pomegranate root
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 pomegranate root bark
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 pomegranate stem bark
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 potato leaf
Search Trop  Picture
 purslane plant
Search Trop  Picture
 quince seed
Search Trop  Picture
 raspberry red raspberry fruit
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 raspberry red raspberry leaf
Search Trop  Picture
 rosemary plant
Search Trop  Picture
 sage leaf
Search Trop  Picture
 sage plant
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 sapodilla fruit
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 savory summer savory plant
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 sesame seed
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 sorrel garden sorrel fruit
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 sorrel garden sorrel root
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 soursop plant
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 soybean seed
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 spearmint leaf
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 tamarind bark
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 tamarind seed
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 tarragon leaf
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 tarragon shoot
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 tea leaf
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 thyme leaf
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 thyme plant
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 verbena plant
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 walnut black walnut fruit
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 walnut black walnut pericarp
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 walnut english walnut bark
Search Trop  Picture
 walnut english walnut fruit
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 walnut english walnut leaf
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 water mint leaf
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 acacia mollissima tannin
 castanea sativa mill tannin
 gallotannic acid
 quebracho wood extract
 quercus spp.
 quercus spp. philippines
 schinopsis lorentzii tannin
 tannic acid 80%
 tannic acid 90%
 tannic acid food grade natural
 tannic acid food grade synthetic
 tannic acid natural
 tannic acid USP
 tannin from chestnut
 tannin from mimosa
 tannin from quebracho
 tannin from sweet gum
 tannins. gallic acid derivatives found in nutgalls, bark and other plant parts, especially oak bark
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PubMed: Flavor characteristics of seven grades of black tea produced in Turkey.
PubMed: Food color, flavor, and conditioned avoidance among red-winged blackbirds.
PubMed: Tannins and human health: a review.
PubMed: Taste and olfactory processing in the brain and its relation to the control of eating.
PubMed: A novel calcium supplement prepared by phytoferritin nanocages protects against absorption inhibitors through a unique pathway.
PubMed: Tannic acid functionalized N-doped graphene modified glassy carbon electrode for the determination of bisphenol A in food package.
PubMed: Carotenoids, but not vitamin A, improve iron uptake and ferritin synthesis by Caco-2 cells from ferrous fumarate and NaFe-EDTA.
PubMed: Analysis of interaction of phenolic compounds with the cholecystokinin signaling pathway to explain effects on reducing food intake.
PubMed: Binary solvent extraction system and extraction time effects on phenolic antioxidants from kenaf seeds (Hibiscus cannabinus L.) extracted by a pulsed ultrasonic-assisted extraction.
PubMed: Response of multiple generations of semilooper, Achaea janata feeding on castor to elevated CO2.
PubMed: Effect of calcium, tannic acid, phytic acid and pectin over iron uptake in an in vitro Caco-2 cell model.
PubMed: A comparative study of the antioxidant scavenging activity of green tea, black tea and coffee extracts: a kinetic approach.
PubMed: Some factors affecting tannase production by Aspergillus niger Van Tieghem.
PubMed: Tannic Acid influence on lead and cadmium accumulation in the hearts and lungs of rats.
PubMed: Production of tannase under solid-state fermentation and its application in detannification of guava juice.
PubMed: Devices for the endoscopic treatment of hemorrhoids.
PubMed: Angiotensin-converting enzyme inhibitory effects by plant phenolic compounds: a study of structure activity relationships.
PubMed: Acorn selection by the wood mouse Apodemus sylvaticus: a semi-controlled experiment in a Mediterranean environment.
PubMed: Dietary antioxidant activities in different germplasms of Mucuna.
PubMed: Compositional, nutritional, and functional characteristics of instant teas produced from low- and high-quality black teas.
PubMed: Effects of elevated atmospheric CO2 on competition between the mosquitoes Aedes albopictus and Ae. triseriatus via changes in litter quality and production.
PubMed: Crystal structure of tannase from Lactobacillus plantarum.
PubMed: Microencapsulation of tannic acid for oral administration to inhibit carbohydrate digestion in the gastrointestinal tract.
PubMed: Non-covalent crosslinkers for electrospun chitosan fibers.
PubMed: Protective effect of tannic acid on the brain of adult rats exposed to cadmium and lead.
PubMed: Study of the adsorption of Cr(VI) by tannic acid immobilised powdered activated carbon from micro-polluted water in the presence of dissolved humic acid.
PubMed: Impact of elevated CO₂ on tobacco caterpillar, Spodoptera litura on peanut, Arachis hypogea.
PubMed: Development of a portable taste sensor with a lipid/polymer membrane.
PubMed: Combination of quercetin and tannic acid in inhibiting 26S proteasome affects S5a and 20S expression, and accumulation of ubiquitin resulted in apoptosis in cancer chemoprevention.
PubMed: Retardation of myoglobin and haemoglobin-mediated lipid oxidation in washed bighead carp by phenolic compounds.
PubMed: Evidence for an enhancing effect of alginate on iron availability in Caco-2 cells.
PubMed: Evaluating cell specific cytotoxicity of differentially charged silver nanoparticles.
PubMed: Measurements of thermodynamic and optical properties of selected aqueous organic and organic-inorganic mixtures of atmospheric relevance.
PubMed: Inactivation of human norovirus surrogates by benzalkonium chloride, potassium peroxymonosulfate, tannic acid, and gallic acid.
PubMed: Cholorpheniramine tannate complexes: physicochemical, chemometric, and taste masking evaluation.
PubMed: Rapid assessment of endpoint antioxidant capacity of red wines through microchemical methods using a kinetic matching approach.
PubMed: Characterization of taste-active compounds of various cherry wines and their correlation with sensory attributes.
PubMed: Tolerance to dietary phenolics and diet breadth in three seed-eating birds: implications for Graminivory.
PubMed: Influence of gallic acid and tannic acid on the mechanical and barrier properties of wheat gluten films.
PubMed: Flavor characteristics of seven grades of black tea produced in Turkey.
PubMed: Total phenolic content, consumer acceptance, and instrumental analysis of bread made with grape seed flour.
PubMed: Removal of Cr(VI) from low-temperature micro-polluted surface water by tannic acid immobilized powdered activated carbon.
PubMed: Phytochemical Composition, Antioxidant and Xanthine Oxidase Inhibitory Activities of Amaranthus cruentus L. and Amaranthus hybridus L. Extracts.
PubMed: Interspecific differences in tannin intakes of forest-dwelling rodents in the wild revealed by a new method using fecal proline content.
PubMed: Heat treatment to modify the structural and physical properties of chitosan-based films.
PubMed: Reutilization of mango byproducts: study of the effect of extraction solvent and temperature on their antioxidant properties.
PubMed: FDA-approved drugs that protect mammalian neurons from glucose toxicity slow aging dependent on cbp and protect against proteotoxicity.
PubMed: Characterization of a Basidiomycete fungus from stored sugar beet roots.
PubMed: Tannate complexes of antihistaminic drug: sustained release and taste masking approaches.
PubMed: Aversive effect of tannic acid on drinking behavior in mice of an inbred strain: potential animal model for assessing astringency.
PubMed: Optimization of tannase production by Aspergillus niger in solid-state packed-bed bioreactor.
PubMed: Catalytical Properties of Free and Immobilized Aspergillus niger Tannase.
PubMed: A new process for simultaneous production of tannase and phytase by Paecilomyces variotii in solid-state fermentation of orange pomace.
PubMed: Catalytic and thermodynamic properties of a tannase produced by Aspergillus niger GH1 grown on polyurethane foam.
PubMed: A tannic acid-based medical food, Cesinex(®), exhibits broad-spectrum antidiarrheal properties: a mechanistic and clinical study.
PubMed: Tannic acid is more effective than clofibrate for the elevation of hepatic β-oxidation and the inhibition of 3-hydroxy-3-methyl-glutaryl-CoA reductase and aortic lesion formation in apo E-deficient mice.
PubMed: Response of a Lactobacillus plantarum human isolate to tannic acid challenge assessed by proteomic analyses.
PubMed: Modulation of genotoxicity and DNA repair by plant monoterpenes camphor, eucalyptol and thujone in Escherichia coli and mammalian cells.
PubMed: Influence of combinations of promoter and inhibitor on the bioaccessibility of iron and zinc from food grains.
PubMed: Ascorbic acid degradation in a model apple juice system and in apple juice during ultraviolet processing and storage.
PubMed: Dietary ligands as determinants of iron-zinc interactions at the absorptive enterocyte.
PubMed: First identification of tannin-binding proteins in saliva of Papio hamadryas using MS/MS mass spectrometry.
PubMed: Differential properties of Aspergillus niger tannase produced under solid-state and submerged fermentations.
PubMed: Immobilization of Paecilomyces variotii tannase and properties of the immobilized enzyme.
PubMed: Isolation and characterization of a novel tannase from a metagenomic library.
PubMed: Individual astringency responsiveness affects the acceptance of phenol-rich foods.
PubMed: Propyl gallate synthesis using acidophilic tannase and simultaneous production of tannase and gallic acid by marine Aspergillus awamori BTMFW032.
PubMed: Damage to the intestinal epithelial barrier by antibiotic pretreatment of salmonella-infected rats is lessened by dietary calcium or tannic acid.
PubMed: Evaluation of certain food additives. Seventy-first report of the Joint FAO/WHO Expert Committee on Food Additives.
PubMed: Effects of tannic acid on gluten protein structure, dough properties and bread quality of Chinese wheat.
PubMed: Quantitative determination of interactions between tannic acid and a model protein using diffusion and precipitation assays on cellulose membranes.
PubMed: Antioxidant activity and hepatoprotective property of leaf extracts of Boerhaavia diffusa Linn against acetaminophen-induced liver damage in rats.
PubMed: Polyphenol-rich beverages enhance zinc uptake and metallothionein expression in Caco-2 cells.
PubMed: Identification of natural antimicrobial substances in red muscadine juice against Cronobacter sakazakii.
PubMed: Chemical modification of gelatin by a natural phenolic cross-linker, tannic acid.
PubMed: Hydrolysis of tannic acid catalyzed by immobilized-stabilized derivatives of Tannase from Lactobacillus plantarum.
PubMed: Antioxidant activity and chemical difference in fruit of different Actinidia sp.
PubMed: Screening of phenolic antioxidants for their inhibitory activity against foodborne Staphylococcus aureus strains.
PubMed: Enhanced antimicrobial activity of starch-based film impregnated with thermally processed tannic acid, a strong antioxidant.
PubMed: Iron absorption from brown rice/brown rice-based meal and milled rice/milled rice-based meal.
PubMed: Ogataea pignaliae sp. nov., the teleomorph of Candida pignaliae.
PubMed: Analysis of the polyphenols content in medicinal plants based on the reduction of Cu(II)/bicinchoninic complexes.
PubMed: Stimulatory role of grape pomace polyphenols on Lactobacillus acidophilus growth.
PubMed: The potential health benefits of legumes as a good source of dietary fibre.
PubMed: Characterization And Application Of Tannase Produced By Aspergillus Niger ITCC 6514.07 On Pomegranate Rind.
PubMed: Production and physicochemical properties of recombinant Lactobacillus plantarum tannase.
PubMed: Limitations of the tetramethylmurexide assay for investigating the Fe(II) chelation activity of phenolic compounds.
PubMed: Comparing soluble ferric pyrophosphate to common iron salts and chelates as sources of bioavailable iron in a Caco-2 cell culture model.
PubMed: Influence of dissolved organic matter and invertebrates on the function of microbial films in groundwater.
PubMed: Antibacterial activity of fresh and processed red muscadine juice and the role of their polar compounds on Escherichia coli O157:H7.
PubMed: Saliva characteristics and individual sensitivity to phenolic astringent stimuli.
PubMed: Inactivation of Enterobacter sakazakii by water-soluble muscadine seed extracts.
PubMed: Development of feeding selectivity and consistency in food choice over 5 years in fallow deer.
PubMed: Studies on Indian green leafy vegetables for their antioxidant activity.
PubMed: Effect of dietary ligands and food matrices on zinc uptake in Caco-2 cells: implications in assessing zinc bioavailability.
PubMed: Effects of ascorbic acid, phytic acid and tannic acid on iron bioavailability from reconstituted ferritin measured by an in vitro digestion-Caco-2 cell model.
PubMed: Antimicrobial effect of water-soluble muscadine seed extracts on Escherichia coli O157:H7.
PubMed: Very rapid quantification of malondialdehyde (MDA) in rat brain exposed to lead, aluminium and phenolic antioxidants by high-performance liquid chromatography-fluorescence detection.
PubMed: Dietary and nutritional biomarkers of lens degeneration, oxidative stress and micronutrient inadequacies in Indian cataract patients.
PubMed: Inhibition of Arcobacter butzleri, Arcobacter cryaerophilus, and Arcobacter skirrowii by plant oil aromatics.
PubMed: Effect of naturally occurring phenolic acids on the expression of glutathione S-transferase isozymes in the rat.
PubMed: Characterization of tannase activity in cell-free extracts of Lactobacillus plantarum CECT 748T.
PubMed: The influence of dietary tannin supplementation on digestive performance in captive black rhinoceros (Diceros bicornis).
PubMed: Safety tests and antinutrient analyses of noni (Morinda citrifolia L.) leaf.
PubMed: Assay-guided fractionation study of alpha-amylase inhibitors from Garcinia mangostana pericarp.
PubMed: The inhibitory effect of tannic acid on cytochrome P450 enzymes and NADPH-CYP reductase in rat and human liver microsomes.
PubMed: Cytotoxic effect of gallic acid on testicular cell lines with increasing H2O2 level in GC-1 spg cells.
PubMed: Food color, flavor, and conditioned avoidance among red-winged blackbirds.
PubMed: Abrogation of thioacetamide-induced biochemical events of hepatic tumor promotion stage by tannic acid in Wistar rats.
PubMed: Mycotoxins in edible tree nuts.
PubMed: Development of alcoholic and malolactic fermentations in highly acidic and phenolic apple musts.
PubMed: Lipid-lowering effect of hot water-soluble extracts of Saururus chinensis Bail on rats fed high fat diets.
PubMed: Interaction of different polyphenols with bovine serum albumin (BSA) and human salivary alpha-amylase (HSA) by fluorescence quenching.
PubMed: The efficacy of protective effects of tannic acid, gallic acid, ellagic acid, and propyl gallate against hydrogen peroxide-induced oxidative stress and DNA damages in IMR-90 cells.
PubMed: Tannic acid induces in vitro acantholysis of keratinocytes via IL-1alpha and TNF-alpha.
PubMed: Flow field-flow fractionation-inductively coupled optical emission spectrometric investigation of the size-based distribution of iron complexed to phytic and tannic acids in a food suspension: implications for iron availability.
PubMed: Effects of dietary factors on iron uptake from ferritin by Caco-2 cells.
PubMed: Profiling and characterization by LC-MSn of the galloylquinic acids of green tea, tara tannin, and tannic acid.
PubMed: Effect of tannic acid on Lactobacillus hilgardii analysed by a proteomic approach.
PubMed: Evidence of anti-obesity effects of the pomegranate leaf extract in high-fat diet induced obese mice.
PubMed: Hydrolyzable tannins with the hexahydroxydiphenoyl unit and the m-depsidic link: HPLC-DAD-MS identification and model synthesis.
PubMed: Antioxidant activity of indigenous edible mushrooms.
PubMed: Comparative analysis of influence of promoters and inhibitors on in vitro available iron using two methods.
PubMed: Statistical model for predicting non-heme iron bioavailability from vegetarian meals.
PubMed: Nutritional quality of leaves of some genotypes of mulberry (Morus alba).
PubMed: Tannase production by Paecilomyces variotii.
PubMed: Compartmentalization of oxidative stress and antioxidant defense in the larval gut of Spodoptera littoralis.
PubMed: Alteration of kafirin and kafirin film structure by heating with microwave energy and tannin complexation.
PubMed: Monitoring and estimation of the kinetics parameters in the binding process of tannic acid to bovine serum albumin with electrochemical quartz crystal impedance system.
PubMed: Preventive effect of tannic acid on 2-acetylaminofluorene induced antioxidant level, tumor promotion and hepatotoxicity: a chemopreventive study.
PubMed: Biodegradation of gallotannins and ellagitannins.
PubMed: Isolation and evaluation of tannin-degrading fungal strains from the Mexican desert.
PubMed: Production, properties and application to biocatalysis of a novel extracellular alkaline phenol oxidase from the thermophilic fungus Scytalidium thermophilum.
PubMed: Meat and ascorbic acid can promote Fe availability from Fe-phytate but not from Fe-tannic acid complexes.
PubMed: Haze formation in model beer systems.
PubMed: Plant phenolics behave as radical scavengers in the context of insect (Manduca sexta) hemolymph and midgut fluid.
PubMed: Determination of tannin in green tea infusion by flow-injection analysis based on quenching the fluorescence of 3-aminophthalate.
PubMed: The role of taste in food selection by African apes: implications for niche separation and overlap in tropical forests.
PubMed: Antioxidant and antiproliferative activities of Spirulina and Chlorella water extracts.
PubMed: Effects of dissolved organic carbon on phosphate retention on two calcareous soils.
PubMed: Antimicrobial activity of 10 different plant polyphenols against bacteria causing food-borne disease.
PubMed: Effects of tannic acid and its related compounds on food mutagens or hydrogen peroxide-induced DNA strands breaks in human lymphocytes.
PubMed: Antioxidant defense of the midgut epithelium by the peritrophic envelope in caterpillars.
PubMed: Changes in midgut and brain proteins in Morimus funereus larvae depending on nutritive substrate.
PubMed: Inhibition of glutathione S-transferases by thonningianin A, isolated from the African medicinal herb, Thonningia sanguinea, in vitro.
PubMed: Inhibitory effects of polyphenols in leaves of Artemisia princeps PAMP on protein fragmentation by Cu(II)-H2O2 in vitro.
PubMed: Efficacy of animal anti-fertility compounds against sea lamprey (Petromyzon marinus) spermatozoa.
PubMed: Characterization of phenolic compounds in some Indian mango cultivars.
PubMed: New method for evaluating astringency in red wine.
PubMed: Captive roe deer (Capreolus capreolus) select for low amounts of tannic acid but not quebracho: fluctuation of preferences and potential benefits.
PubMed: Impact of dietary allelochemicals on gypsy moth (Lymantria dispar) caterpillars: importance of midgut alkalinity.
PubMed: Synthesis of antioxidant propyl gallate using tannase from Aspergillus niger van Teighem in nonaqueous media.
PubMed: Method for analysis of tannic acid and its metabolites in biological samples: application to tannic acid metabolism in the rat.
PubMed: Culture conditions dictate protease and tannase production in submerged and solid-state cultures of Aspergillus niger Aa-20.
PubMed: Relationships between threshold-based PROP sensitivity and food preferences of Tunisians.
PubMed: Turbidity as a measure of salivary protein reactions with astringent substances.
PubMed: Gut-based antioxidant enzymes in a polyphagous and a graminivorous grasshopper.
PubMed: Polyphenol-induced inhibition of the response of na(+)/glucose cotransporter expressed in Xenopus oocytes.
PubMed: Transaminase and alkaline phosphatase activity in the serum of burn patients treated with highly purified tannic acid.
PubMed: Melanoidins exert a weak antiradical activity in watery fluids.
PubMed: Deterioration of natural antioxidant species of vegetable edible oils during the domestic deep-frying and pan-frying of potatoes.
PubMed: Characterization of haze-active proteins in apple juice.
PubMed: Inhibition of iron uptake by phytic acid, tannic acid, and ZnCl2: studies using an in vitro digestion/Caco-2 cell model.
PubMed: The historical aspects of sunscreens.
PubMed: Effects of tannic acid on cecal volatile fatty acids and susceptibility to Salmonella typhimurium colonization in broiler chicks.
PubMed: Differential long-term effects of tannic acid on adenyl cyclase activity and lipolysis in rat adipocytes.
PubMed: Production of tannase by Aspergillus niger Aa-20 in submerged and solid-state fermentation: influence of glucose and tannic acid.
PubMed: Palatability of bird repellents to Rattus norvegicus.
PubMed: The effects of tannins on nutrient utilisation in the White Pekin duck.
PubMed: Gustatory responsiveness to food-associated sugars and acids in pigtail macaques, Macaca nemestrina.
PubMed: Saliva tannin interactions.
PubMed: Inhibitory effects of apple polyphenols and related compounds on cariogenic factors of mutans streptococci.
PubMed: Antioxidant activity of dietary polyphenols as determined by a modified ferric reducing/antioxidant power assay.
PubMed: Anti-oxidant, pro-oxidant properties of tannic acid and its binding to DNA.
PubMed: Mutagenicity and antimutagenicity studies of tannic acid and its related compounds.
PubMed: Free radical scavenging capacity in the aging of selected red Spanish wines.
PubMed: Chemopreventive activity of very low dose dietary tannic acid administration in hepatoma bearing C3H male mice.
PubMed: Molecular cloning, expression and characterization of a phenol sulfotransferase cDNA from mouse intestine.
PubMed: Effect of gelatin (a model for salivary PRP) on the sensory astringency of 5-O-caffeoylquinic acid and tannic acid.
PubMed: Tannins and human health: a review.
PubMed: Structural features of tannic acid important for DNA degradation in the presence of Cu(II).
PubMed: Adherence of two film-forming medications to the oral mucosa.
PubMed: Feeding and digesting fiber and tannins by an herbivorous rodent, Octodon degus (Rodentia:Caviomorpha).
PubMed: Chemoprotection against the formation of colon DNA adducts from the food-borne carcinogen 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) in the rat.
PubMed: Taste and olfactory processing in the brain and its relation to the control of eating.
PubMed: In vitro anticancer activity of fruit extracts from Vaccinium species.
PubMed: A quantitative model for prediction of iron bioavailability from Indian meals: an experimental study.
PubMed: Effect of blanching on the content of antinutritional factors in selected vegetables.
PubMed: [Factors which modify the nutritional state of iron: tannin content of herbal teas].
PubMed: Study on the carcinogenicity of tannic acid in F344 rats.
PubMed: Tannic acid content in sorghum (Sorghum bicolour M.): effects of processing.
PubMed: DNA breakage by tannic acid and Cu(II): sequence specificity of the reaction and involvement of active oxygen species.
PubMed: Degradation of polyphenols (catechin and tannic acid) in the rat intestinal tract. Effect on colonic fermentation and faecal output.
PubMed: The blocking effect of phenolic acid on N-nitrosomorpholine formation in vitro.
PubMed: Tannins in treehole habitats and their effects on Aedes sierrensis (Diptera: Culicidae) production and parasitism by Lambornella clarki (Ciliophora: Tetrahymenidae).
PubMed: Preference and aversion for deterrent chemicals in two species of Peromyscus mouse.
PubMed: [Study and preparation of Vi-PHA reagent and its application for detection of Salmonella typhi carriers].
PubMed: The nutritive quality of sorghum-commonbean tempe.
PubMed: Green tea composition, consumption, and polyphenol chemistry.
PubMed: Role of antioxidants and scavengers on argemone oil-induced toxicity in rats.
PubMed: DNA damage by smoke: protection by turmeric and other inhibitors of ROS.
PubMed: Changes in some antinutrients of cowpeas (Vigna unguiculata) processed with 'kanwa' alkaline salt.
PubMed: [Subchronic oral toxicity study of tannic acid in F344 rats].
PubMed: Effects of native and oxidized phenolic compounds on sucrase activity in rat brush border membrane vesicles.
PubMed: Dietary phenolic compounds: inhibition of Na+-dependent D-glucose uptake in rat intestinal brush border membrane vesicles.
PubMed: [Effect of the seed coat on the hardening of common beans (Phaseolus vulgaris)].
PubMed: Failure of tannic acid to inhibit digestion or reduce digestibility of plant protein in gut fluids of insect herbivores : Implications for theories of plant defense.
PubMed: [Dehulling of sorghum in grinding mills].
PubMed: Tannin analysis of food products.
PubMed: Chemosensitivity of lobster,Homarus americanus, to secondary plant compounds: Unused receptor capabilities.
PubMed: Inhibitory effects of phenolics, teas and saliva on the formation of mutagenic nitrosation products of salted fish.
PubMed: Drug-nitrite interactions in human saliva: effects of food constituents on carcinogenic N-nitrosamine formation.
PubMed: Modes of action of gallic acid in suppressing food intake of rats.
PubMed: A mutagenicity methodology for assessing the formation of N-dimethylnitrosamine in vivo.
PubMed: [Digestive and metabolic utilization of dietary nitrogen in rats receiving tannic acid, sulfite and ethanol, administrated singly or in combination].
PubMed: Chemical interactions between thiamin and tannic acid. I. Kinetics, oxygen dependence and inhibition by ascorbic acid.
PubMed: Tannic acid: acute hepatotoxicity following administration by feeding tube.
PubMed: [Effects of tannic acid and potassium metabisulfite in combination with ethanol on some enzymatic detoxication activities of rat liver microsomes].
PubMed: Effect of various agents in alleviating the toxicity of tannic acid for chickens.
PubMed: Food intake depression and other metabolic effects of tannic acid in the rat.
PubMed: [Effect of tannic acid on intestinal absorption in the mouse].
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