laevo-tyrosine
L-tyrosine
 
Notes:
Dietary supplement, nutrient. Flavouring ingredient
  • 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 and our roster of products and services continues to grow with us. Personal care ingredients now include a substantial array of luxury and exotic components. Substantial inroads have been made in the nutraceutical and resins markets, with a growing roster of versatile and unique ingredients. And 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.
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      Product(s):
      TYROSINE, L-
      TYROSINE, L- (FERMENTATION)
      TYROSINE, L- USP GRANULAR
       
  • ECSA Chemicals
    • ECSA Chemicals
      International trading and distribution
      ECSA Group offers its customers in these business segments a complete 'one-stop shopping' solution.
      A hundred years on from its establishment, the Emanuele Centonze Holding SA has developed a solid presence in Switzerland and in Europe. The Group currently includes: ECSA Chemicals AG/ECSA Italia SRL SocietÓ con Unico Socio – ECSA Maintenance AG – ECSA Energy SA – Porta Ticino Easy Stop SA. The Group operates in the distribution of chemical and petroleum products, in the international trading of commodities, and in the distribution of maintenance systems. With 285 employees, a consolidated turnover of 335 million Swiss Francs in 2015, and more than 15,000 active customers, the Group ranks among the top 500 companies in Switzerland. ECSA operates in Switzerland and the EU, and in particular has consolidated its geographical position on the main axis linking northern and southern Europe, thus creating a competitive and privileged logistical hub.
      Email: Info
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      Email: Energy
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      Fax: +41 91 695 88 01
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      Product(s):
      L-Tyrosine
       
  • Lansdowne Chemicals
    • Lansdowne Chemicals
      With a focus on providing the highest level of service
      Lansdowne Chemicals has established itself at the forefront of the global chemical industry.
      Headquarters are in Carterton, Oxfordshire encompassing all of Lansdowne's Business Units. Our Regulatory Team and Quality Control Departments are based out of Carterton. Lansdowne Aromatic's state of the art warehouse facilities are located in Cricklade, covering 12,000 square ft. We are able to offer just-in-time deliveries for our full range of products, in a variety of pack sizes. Bonded facilities are available for goods going outside of the EU.
      Email: Contact Us:
      US Email: Dean Matienzo - Sales Manager
      Voice: +44 1993 843081
      Fax: +44 1993 841261
      US Voice: +1 973 886 3778
      US Fax: +1 973 346 1106
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      Global Distribution
      Product(s):
      L-Tyrosine
       
  • Penta International
    • Penta International Corporation
      Chemistry innovation
      At Penta, our products and services help businesses do business better.
      For over 30 years, Penta Manufacturing Company has played a growing role in worldwide chemistry innovations and applications. As an industry leader, Penta continues to pioneer chemistry-based solutions for practically every area of commerce. Our products and expertise have helped fuel technical advances in dozens of commercial applications including flavoring, coloring, fragrances and chemical processes.
      US Email: Technical Services
      US Email: Sales
      US Voice: (973) 740-2300
      US Fax: (973) 740-1839
      Product(s):
      20-90000 L-TYROSINE SYNTHETIC, Kosher
      20-90002 L-TYROSINE NATURAL, Kosher
       
  • Sigma-Aldrich
    • Sigma-Aldrich
      Complete Supply Chain
      The perfect blend of products and services that bring your creativity to life.
      Sigma-Aldrich is a leading Life Science and High Technology company dedicated to providing high-quality, safe and certified flavor ingredients with transparent and easily accessible documentation to customers around the globe. Sigma-Aldrich also provides a suite of analytical tools that allow food analysts to simplify sample preparation, cleanup and analysis steps, while increasing sensitivity to trace ingredients and harmful substances to meet regulations and quality standards.
      Email: Information
      US Email: Sales
      US Voice: 800-244-1173
      US Fax: 800-368-4661
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      Certified Food Grade Products
      Product(s):
      W373605 L-Tyrosine, ≥97%, FG
      SDS
       
Synonyms   Articles   Notes   Search
(2S)-2-amino-3-(4-hydroxyphenyl)propanoic acid (Click)
CAS Number: 60-18-4Picture of molecule
ECHA EINECS - REACH Pre-Reg: 200-460-4
FDA UNII: 42HK56048U
Nikkaji Web: J9.173A
Beilstein Number: 0392441
MDL: MFCD00002606
XlogP3: -2.30 (est)
Molecular Weight: 181.19127000
Formula: C9 H11 N O3
BioActivity Summary: listing
NMR Predictor: Predict (works with chrome or firefox)
Category: special dietary and nutritional additives
 
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
IBM Patents: Obtain
Obtain
Pubchem Patents: Search
PubMed: Search
NCBI: Search
JECFA Food Flavoring: 1434  L-tyrosine
Flavis Number: 17.022 (Old)
DG SANTE Food Flavourings: 17.022  L-tyrosine
FEMA Number: 3736  L-tyrosine
FDA Mainterm: L-TYROSINE
FDA Regulation:
FDA PART 172 -- FOOD ADDITIVES PERMITTED FOR DIRECT ADDITION TO FOOD FOR HUMAN CONSUMPTION
Subpart D--Special Dietary and Nutritional Additives
Sec. 172.320 Amino acids.
Synonyms   Articles   Notes   Search   Top
Physical Properties:
Appearance: white crystalline needles (est)
Assay: 99.00 to 100.00 % 
Food Chemicals Codex Listed: No
Melting Point: 342.00 to  344.00 °C. @ 760.00 mm Hg
Boiling Point: 351.17 °C. @ 760.00 mm Hg (est)
Flash Point: > 230.00 °F. TCC ( > 110.00 °C. )
logP (o/w): 0.380
Soluble in:
 alcohol
 water, 9.71e+004 mg/L @ 25 °C (est)
 water, 479 mg/L @ 25 °C (exp)
Synonyms   Articles   Notes   Search   Top
Organoleptic Properties:
Odor Strength: none
Odor Description:
at 100.00 %. 
odorless
  
Synonyms   Articles   Notes   Search   Top
Cosmetic Information:
CosIng: cosmetic data
Cosmetic Uses: antistatic agents
hair conditioning
masking agents
skin conditioning
Synonyms   Articles   Notes   Search   Top
Suppliers:
Aceto
L-Tyrosine FCC (A)
AIDP
L-Tyrosine 98.5-100.5%
Ajinomoto USA
AjiPure™ Tyrosine
Flavor: characteristic
Manufactured under cGMP conditions using no materials of animal origin.
Ajinomoto USA
L-Tyrosine
Flavor: characteristic
L-tyrosine is classified as a non-essential amino acid. This means the body can synthesize sufficient amounts to meet daily needs. An existing theory indicates that L-tyrosine is a semi-essential aminoŚunder certain situations the body cannot meet demands and additional L-tyrosine must be acquired through diet or supplementation.
Atlantic Chemicals
L-Tyrosine
AuNutra® Industries
L-Tyrosine
Charkit Chemical
TYROSINE, L- (FERMENTATION)
Charkit Chemical
TYROSINE, L- USP GRANULAR
Charkit Chemical
TYROSINE, L-
ECSA Chemicals
L-Tyrosine
Company Profile
George Uhe Company
L-Tyrosine
Glentham Life Sciences
L-Tyrosine
Lansdowne Chemicals
L-Tyrosine
Pangaea Sciences
Amino Acid, Tyrosine
Penta International
L-TYROSINE NATURAL, Kosher
Penta International
L-TYROSINE SYNTHETIC, Kosher
Prinova
L-Tyrosine
Qingdao Dacon Trading
L-Tyrosine
Risun Ingredients
L-Tyrosine AJI
Sigma-Aldrich
L-Tyrosine, ≥97%, FG
Certified Food Grade Products
Zhong Ya Chemical
L-Tyrosine
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Safety Information:
Preferred SDS: View
European information :
Most important hazard(s):
Xi - Irritant
R 36/37/38 - Irritating to eyes, respiratory system, and skin.
S 02 - Keep out of the reach of children.
S 24/25 - Avoid contact with skin and eyes.
S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S 36 - Wear suitable protective clothing.
 
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
 
Pictogram
 
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
intraperitoneal-mouse LD50  > 1450 mg/kg
Yakugaku Zasshi. Journal of Pharmacy. Vol. 97, Pg. 1117, 1977.

Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
Synonyms   Articles   Notes   Search   Top
Safety in Use Information:
Category: special dietary and nutritional additives
Recommendation for laevo-tyrosine usage levels up to:
 not for fragrance use.
 
Maximised Survey-derived Daily Intakes (MSDI-EU): 10.00 (μg/capita/day)
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: 13
Click here to view publication 13
 average usual ppmaverage maximum ppm
baked goods: -250.00000
beverages(nonalcoholic): --
beverages(alcoholic): --
breakfast cereal: --
cheese: --
chewing gum: --
condiments / relishes: -250.00000
confectionery froastings: --
egg products: --
fats / oils: --
fish products: --
frozen dairy: --
fruit ices: --
gelatins / puddings: --
granulated sugar: --
gravies: --
hard candy: --
imitation dairy: --
instant coffee / tea: --
jams / jellies: --
meat products: -250.00000
milk products: --
nut products: --
other grains: --
poultry: --
processed fruits: --
processed vegetables: --
reconstituted vegetables: --
seasonings / flavors: -250.00000
snack foods: -250.00000
soft candy: --
soups: --
sugar substitutes: --
sweet sauces: --
Synonyms   Articles   Notes   Search   Top
Safety References:
European Food Safety Athority(efsa): Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies...
European Food Safety Authority (EFSA) reference(s):
Amino acids from chemical group 34 Flavouring Group Evaluation 26, Revision 1 - Scientific opinion of the Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC)
View page or View pdf
Flavouring Group Evaluation 29 (FGE29)[1] - Substance from the priority list: Vinylbenzene from chemical group 31 - Scientific Opinion of the Panel on Food Additives, Flavourings, Processing Aids and Materials in Contact with Food (AFC)
View page or View pdf
Flavouring Group Evaluation 79, (FGE.79)[1] - Consideration of amino acids and related substances evaluated by JECFA (63rd meeting) structurally related to amino acids from chemical group 34 evaluated by EFSA in FGE.26Rev1 (2008)
View page or View pdf
Scientific opinion on the safety and efficacy of L-tyrosine for all animal species
View page or View pdf
Scientific Opinion on the safety and efficacy of the use of amino acids (chemical group 34) when used as flavourings for all animal species
View page or View pdf
Scientific Opinion on Flavouring Group Evaluation 49, Revision 1 (FGE.49Rev1): xanthine alkaloids from the priority list
View page or View pdf
EPI System: View
ClinicalTrials.gov: search
Daily Med: search
NLM Hazardous Substances Data Bank: Search
Chemical Carcinogenesis Research Information System: Search
AIDS Citations: Search
Cancer Citations: Search
Toxicology Citations: Search
Env. Mutagen Info. Center: Search
NLM Developmental and Reproductive Toxicity: Search
EPA Substance Registry Services (TSCA): 60-18-4
EPA ACToR: Toxicology Data
EPA Substance Registry Services (SRS): Registry
Laboratory Chemical Safety Summary : 6057
National Institute of Allergy and Infectious Diseases: Data
WGK Germany: 1
 (2S)-2-amino-3-(4-hydroxyphenyl)propanoic acid
Chemidplus: 0000060184
RTECS: YP2275600 for cas# 60-18-4
Synonyms   Articles   Notes   Search   Top
References:
 (2S)-2-amino-3-(4-hydroxyphenyl)propanoic acid
NIST Chemistry WebBook: Search Inchi
Canada Domestic Sub. List: 60-18-4
Pubchem (cid): 6057
Pubchem (sid): 134972776
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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
CHEBI: View
CHEMBL: View
Golm Metabolome Database: Search
Metabolomics Database: Search
UM BBD: Search
KEGG (GenomeNet): C00082
HMDB (The Human Metabolome Database): HMDB00158
FooDB: FDB000446
YMDB (Yeast Metabolome Database): YMDB00364
Export Tariff Code: 2922.49.3800
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
Synonyms   Articles   Notes   Search   Top
Potential Blenders and core components note
 
None Found
 
Synonyms   Articles   Notes   Search   Top
Potential Uses:
 antistatic agents 
Synonyms   Articles   Notes   Search   Top
Occurrence (nature, food, other): note
 almond seed
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 apple fruit
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 apricot fruit
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 artichoke jerusalem artichoke tuber
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 asparagus shoot
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 avocado fruit
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 banana fruit
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 barley seed
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 basil leaf
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 basswood fruit
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 bean adzuki bean seed
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 bean asparagus bean fruit
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 bean asparagus bean seed
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 bean banner bean seed
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 bean black bean fruit
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 bean black bean seed
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 bean black bean sprout
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 bean butter bean seed
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 bean fava bean seed
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 bean field bean seed
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 bean mung bean seed
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 bean mung bean sprout
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 bean winged bean leaf
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 bean winged bean seed
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 bean winged bean tuber
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 bean yam bean tuber
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 beet root
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 blueberry fruit
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 brazil nut
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 breadfruit fruit
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 broccoli asparagus broccoli leaf
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 buckwheat seed
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 burdock root
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 butternut seed
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 cabbage leaf
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 cacao bean
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 caraway seed
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 carob bean seed
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 carrot root
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 cashew nut
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 cassava root
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 cayenne fruit
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 celery plant
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 chayote fruit
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 cherry sour cherry fruit
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 chestnut sweet chestnut nut
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 chickpea seed
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 chive leaf
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 coconut leaf
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 coconut seed
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 coriander fruit
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 coriander seed
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 corn seed
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 cucumber fruit
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 date palm fruit
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 eggplant fruit
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 elder black elder fruit
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 elder black elder fruit juice
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 endive leaf
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 evening-primrose seed
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 fennel seed
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 fenugreek seed
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 fig fruit
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 flax seed
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 garlic bulb
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 garlic leaf
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 ginger root
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 ginkgo biloba seed
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 goosefoot leaf
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 grape fruit
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 guava fruit
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 guava strawberry guava fruit
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 leek wild leek plant
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 lentil seed
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 lentil sprout
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 lettuce lamb's lettuce plant
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 lettuce leaf
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 lotus indian lotus rhizome
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 lotus indian lotus seed
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 lupine white lupine seed
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 macadamia nut
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 mallow jew's mallow leaf
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 mandarin fruit
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 mango fruit
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 marango shoot
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 melon bitter melon seed
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 mushroom shiitake mushroom fruit
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 mustard white mustard seed
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 oat seed
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 okra fruit
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 onion bulb
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 orange fruit
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 papaya fruit
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 pea black-eyed pea seed
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 pea fruit
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 pea pigeon pea seed
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 pea seed
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 peach fruit
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 peanut seed
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 pear fruit
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 pepper bell pepper fruit
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 peppermint leaf
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 pigweed leaf
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 pine pinyon pine seed
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 pineapple fruit
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 pistachio nut
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 plum fruit
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 poppy opium poppy seed
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 potato sweet potato root
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 potato tuber
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 purslane herb
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 radish root
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 rice plant
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 rosemary leaf
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 rye seed
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 saffron bulb
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 sage plant
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 sesame seed
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 sorghum
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 soybean seed
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 soybean shoot
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 spearmint leaf
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 spinach indian spinach leaf
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 spinach plant
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 spinach water spinach leaf
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 squash summer squash fruit
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 star fruit fruit
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 sunflower seed
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 taro leaf
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 taro root
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 tarragon leaf
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 tarragon root
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 thyme plant
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 tomato fruit
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 turnip indian turnip root
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 walnut black walnut nut
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 walnut english walnut nut
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 watercress herb
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 watermelon fruit
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 watermelon plant
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 watermelon seed
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 wheat seed
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 yam mountain yam root
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Synonyms   Articles   Notes   Search   Top
Synonyms:
 ajipure tyrosine
(2S)-2-amino-3-(4-hydroxyphenyl) propanoic acid
(2S)-2-amino-3-(4-hydroxyphenyl)propanoic acid
L-2-amino-3-p-hydroxyphenylpropanoic acid
beta-p-hydroxyphenyl alanine
beta-para-hydroxyphenyl alanine
laevo-beta-(p-hydroxyphenyl) alanine
laevo-beta-(para-hydroxyphenyl) alanine
3-(4-hydroxyphenyl)-L-alanine
3-(4-hydroxyphenyl)-laevo-alanine
L-phenylalanine, 4-hydroxy-
 rxosine
 tirosina
L-tyrosin
(S)-(-)-tyrosine
L-tyrosine
L-(-)-tyrosine
L-p-tyrosine
L-tyrosine FCC
L-tyrosine natural
 tyrosine, L-
Synonyms   Articles   Notes   Search   Top
Articles:
PubMed: Metabolic engineering for p-coumaryl alcohol production in Escherichia coli by introducing an artificial phenylpropanoid pathway.
PubMed: Biosynthesis of p-anisaldehyde by the white-rot basidiomycete Pleurotus ostreatus.
PubMed: Metabolic engineering for p-coumaryl alcohol production in Escherichia coli by introducing an artificial phenylpropanoid pathway.
PubMed: Accurate determination of reference materials and natural isolates by means of quantitative (1)h NMR spectroscopy.
PubMed: Construction and application of novel feedback-resistant 3-deoxy-d-arabino-heptulosonate-7-phosphate synthases by engineering the N-terminal domain for L-phenylalanine synthesis.
PubMed: Working memory reloaded: tyrosine repletes updating in the N-back task.
PubMed: Single-step purification of peroxidase by 4-aminobenzohydrazide from Turkish blackradish and Turnip roots.
PubMed: Isophilippinolide A arrests cell cycle progression and induces apoptosis for anticancer inhibitory agents in human melanoma cells.
PubMed: Impact of addition of aromatic amino acids on non-volatile and volatile compounds in lychee wine fermented with Saccharomyces cerevisiae MERIT.ferm.
PubMed: Purification of a fucoidan from kelp polysaccharide and its inhibitory kinetics for tyrosinase.
PubMed: A chiral ligand exchange CE system for monitoring inhibitory effect of kojic acid on tyrosinase.
PubMed: A novel amperometric biosensor based on a co-crosslinked L-lysine-╬▒-oxidase/overoxidized polypyrrole bilayer for the highly selective determination of L-lysine.
PubMed: Inhibitory kinetics of chlorocinnamic acids on mushroom tyrosinase.
PubMed: Immobilized capillary tyrosinase microreactor for inhibitor screening in natural extracts by capillary electrophoresis.
PubMed: Isolation and characterization of biologically active melanin from Actinoalloteichus sp. MA-32.
PubMed: High-performance liquid chromatographic analysis of biogenic amines in pharmaceutical products containing Citrus aurantium.
PubMed: Metabonomic analysis of urine from rats after low-dose exposure to 3-chloro-1,2-propanediol using UPLC-MS.
PubMed: [Asymmetric synthesis of aromatic L-amino acids catalyzed by transaminase].
PubMed: Biofunctional Constituents from Liriodendron tulipifera with Antioxidants and Anti-Melanogenic Properties.
PubMed: Requirements for in vitro germination of Paenibacillus larvae spores.
PubMed: One-step purification of lactoperoxidase from bovine milk by affinity chromatography.
PubMed: Dioscin: a synergistic tyrosinase inhibitor from the roots of Smilax china.
PubMed: Characterization of ergothionase from Burkholderia sp. HME13 and its application to enzymatic quantification of ergothioneine.
PubMed: Fast determination of N-phenylpropenoyl-l-amino acids (NPA) in cocoa samples from different origins by ultra-performance liquid chromatography and capillary electrophoresis.
PubMed: Action of tyrosinase on ortho-substituted phenols: possible influence on browning and melanogenesis.
PubMed: Changes in tyrosinase specificity by ionic liquids and sodium dodecyl sulfate.
PubMed: Leucine is essential for attenuating fetal growth restriction caused by a protein-restricted diet in rats.
PubMed: GC-MS based metabolomics for rapid simultaneous detection of Escherichia coli O157:H7, Salmonella Typhimurium, Salmonella Muenchen, and Salmonella Hartford in ground beef and chicken.
PubMed: Purification of carbonic anhydrase-II from sheep liver and inhibitory effects of some heavy metals on enzyme activity.
PubMed: Characterization of codon-optimized recombinant candida rugosa lipase 5 (LIP5).
PubMed: Effects of thymol on mushroom tyrosinase-catalyzed melanin formation.
PubMed: Assessment of enzymatic methods in the ╬┤18O value determination of the L-tyrosine p-hydroxy group for proof of illegal meat and bone meal feeding to cattle.
PubMed: Development of L-tryptophan production strains by defined genetic modification in Escherichia coli.
PubMed: Nutritional and medicinal aspects of D-amino acids.
PubMed: Tetrahydrofolic Acid is a potent suicide substrate of mushroom tyrosinase.
PubMed: The tyrosine O-prenyltransferase SirD catalyzes O-, N-, and C-prenylations.
PubMed: Determination of L-tyrosine by beta-cyclodextrin sensitized fluorescence quenching method.
PubMed: Growth-sensitive gold nanoshells precursor nanocomposites for the detection of L-DOPA and tyrosinase activity.
PubMed: Isolation, cloning and characterization of a tyrosinase with improved activity in organic solvents from Bacillus megaterium.
PubMed: [Phosphatase activity in Amoeba proteus at low pH].
PubMed: Bioproduction of p-hydroxystyrene from glucose by the solvent-tolerant bacterium Pseudomonas putida S12 in a two-phase water-decanol fermentation.
PubMed: Separation and determination of l-tyrosine and its metabolites by capillary zone electrophoresis with a wall-jet amperometric detection.
PubMed: Absorption of N-phenylpropenoyl-L-amino acids in healthy humans by oral administration of cocoa (Theobroma cacao).
PubMed: Kinetic characterization of O-phospho-L-tyrosine phosphohydrolase activity of two fungal phytases.
PubMed: [Construction and expression of the soybean isoflavonoid biosynthetic pathway in Escherichia coli].
PubMed: L-tyrosine. Monograph.
PubMed: Serine dehydratase and tyrosine aminotransferase activities increased by long-term starvation and recovery by refeeding in rainbow trout (Oncorhynchus mykiss).
PubMed: Bioproduction of p-hydroxybenzoate from renewable feedstock by solvent-tolerant Pseudomonas putida S12.
PubMed: Design and synthesis of opioidmimetics containing 2',6'-dimethyl-L-tyrosine and a pyrazinone-ring platform.
PubMed: A thioredoxin of Sinorhizobium meliloti CE52G is required for melanin production and symbiotic nitrogen fixation.
PubMed: The tyrosine degradation gene hppD is transcriptionally activated by HpdA and repressed by HpdR in Streptomyces coelicolor, while hpdA is negatively autoregulated and repressed by HpdR.
PubMed: Elucidating the mechanism of laccase and tyrosinase in wheat bread making.
PubMed: Bifunctional [2',6'-dimethyl-L-tyrosine1]endomorphin-2 analogues substituted at position 3 with alkylated phenylalanine derivatives yield potent mixed mu-agonist/delta-antagonist and dual mu-agonist/delta-agonist opioid ligands.
PubMed: Stereospecificity of mushroom tyrosinase immobilized on a chiral and a nonchiral support.
PubMed: Antioxidant and antimelanogenic activities of polyamine conjugates from corn bran and related hydroxycinnamic acids.
PubMed: Transformation of mu-opioid receptor agonists into biologically potent mu-opioid receptor antagonists.
PubMed: Optimization of the solvent-tolerant Pseudomonas putida S12 as host for the production of p-coumarate from glucose.
PubMed: On-column coaxial flow chemiluminescence detection for underivatized amino acids by pressurized capillary electrochromatography using a monolithic column.
PubMed: Quantitative analysis of N-phenylpropenoyl-L-amino acids in roasted coffee and cocoa powder by means of a stable isotope dilution assay.
PubMed: Isolation and Characterization of Strain MMB-1 (CECT 4803), a Novel Melanogenic Marine Bacterium.
PubMed: Hen egg white lysozyme as an inhibitor of mushroom tyrosinase.
PubMed: Production, properties and application to biocatalysis of a novel extracellular alkaline phenol oxidase from the thermophilic fungus Scytalidium thermophilum.
PubMed: Purification and characterization of Ocimum basilicum L. polyphenol oxidase.
PubMed: Isolation and identification of flavonoids in licorice and a study of their inhibitory effects on tyrosinase.
PubMed: Effects of mushroom tyrosinase on anisaldehyde.
PubMed: Isolation, structure determination, synthesis, and sensory activity of N-phenylpropenoyl-L-amino acids from cocoa (Theobroma cacao).
PubMed: Sensory-guided decomposition of roasted cocoa nibs (Theobroma cacao) and structure determination of taste-active polyphenols.
PubMed: Characterization and purification of polyphenol oxidase from artichoke (Cynara scolymus L.).
PubMed: Studies on the structure-activity relationship of 2',6'-dimethyl-l-tyrosine (Dmt) derivatives: bioactivity profile of H-Dmt-NH-CH(3).
PubMed: Tyrosinase inhibitors isolated from the edible brown alga Ecklonia stolonifera.
PubMed: Low molecular weight compounds responsible for savory taste of Indonesian soy sauce.
PubMed: A sphingolipid and tyrosinase inhibitors from the fruiting body of Phellinus linteus.
PubMed: Purification and characterization of a serine carboxypeptidase from Kluyveromyces marxianus.
PubMed: Synthesis of lipophilic clovamide derivatives and their antioxidative potential against lipid peroxidation.
PubMed: Augmentation of endogenous dopamine production increases lung liquid clearance.
PubMed: Effect of nitration on the activity of bovine erythrocyte Cu,Zn-superoxide dismutase (BESOD) and a kinetic analysis of its dimerization-dissociation reaction as examined by subunit exchange between the native and nitrated BESODs.
PubMed: Tyrosinase inhibition kinetics of anisic acid.
PubMed: Differentiation of natural and synthetic phenylalanine and tyrosine through natural abundance 2H nuclear magnetic resonance.
PubMed: Competitive inhibition of mushroom tyrosinase by 4-substituted benzaldehydes.
PubMed: Protein-bound D-amino acids, and to a lesser extent lysinoalanine, decrease true ileal protein digestibility in minipigs as determined with (15)N-labeling.
PubMed: Kinetic study of the oxidation of gamma-L-glutaminyl-4-hydroxybenzene catalyzed by mushroom (Agaricus bisporus) tyrosinase.
PubMed: Flavonols from saffron flower: tyrosinase inhibitory activity and inhibition mechanism.
PubMed: Proton NMR relaxation studies of solid tyrosine derivatives and their mixtures with L-leucinamide.
PubMed: Evidence that phenylalanine hydroxylation rates are overestimated in neonatal subjects receiving total parenteral nutrition with a high phenylalanine content.
PubMed: N-acetyl-L-tyrosine (NAT) as a substrate for mushroom tyrosinase.
PubMed: Analysis of native human plasma proteins and haemoglobin for the presence of bityrosine by high-performance liquid chromatography.
PubMed: Changes in blood-brain barrier nutrient transport in the offspring of iodine-deficient rats and their preventability.
PubMed: Molecular and phenotypic methods for the characterization of atypical Aeromonas salmonicida.
PubMed: Comparison of trypsin and chymotrypsin from the viscera of anchovy, Engraulis japonica.
PubMed: Anorexic action of a new potential neuropeptide Y antagonist [D-Tyr27,36, D-Thr32]-NPY (27-36) infused into the hypothalamus of the rat.
PubMed: Failure of dietary amino acid supplementation at weaning to influence reproductive traits of sows.
PubMed: Isolation and properties of gamma-tocopherol methyltransferase in Euglena gracilis.
PubMed: L-tyrosine potentiates the anorexia induced by mixed-acting sympathomimetic drugs in hyperphagic rats.
PubMed: Pediatric parenteral amino acid mixture in low birth weight infants.
PubMed: Development of a chronic canine model for measurement of absorption by substrate appearance in portal venous blood.
PubMed: The nutritive value and safety of D-phenylalanine and D-tyrosine in mice.
PubMed: Lactational response of dairy cows to oral administration of L-tyrosine.
PubMed: Pituitary hormone release in response to food ingestion: evidence for neuroendocrine signals from gut to brain.
PubMed: Characterization and evaluation of Aspergillus oryzae lactase coupled to a regenerable support.
PubMed: Plasma tyrosine in normal humans: effects of oral tyrosine and protein-containing meals.
PubMed: Biosynthesis of cyanogenic glycosides.
PubMed: [Induction of tyrosine aminotransferase (EC 2.5.1.5) by nicotinamide in rat liver (author's transl)].
PubMed: Nutritional improvement of food proteins by enzymatic modification, especially by plastein synthesis reaction.
PubMed: Effects on the diet on brain neurotransmitters.
PubMed: Partial Purification and Some Properties of Tyrosine Phenol-Lyase from Aeromonas phenologenes ATCC 29063.
PubMed: Isolation of Aeromonas sp. ATCC 29063, a phenol-producing organism, from fresh haddock.
PubMed: A Nonproteolytic "Trypsin-like" Enzyme: Purification and Properties of Arachain.
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