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The function(s) performed by the food additive when used in cooking.

  • Flour treatment agent - A substance that improves baking quality or colour of flour

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Data according to various sources such as fao, fda, codex. Spot a mistake? Tell us!

Country Status Matched Term
United States
Approved Cystine (l form); Cysteine (l-form) monohydrochloride; Cysteine (l-form)
European Union
Not Permitted
Australia and New Zealand
Not Permitted
Afghanistan
Unknown None
Philippines
Not Permitted
Austria
Not Permitted
Belgium
Not Permitted
Bulgaria
Not Permitted
Cyprus
Not Permitted
Czech Republic
Not Permitted
Denmark
Not Permitted
Estonia
Not Permitted
Finland
Not Permitted
France
Not Permitted
Germany
Not Permitted
Greece
Not Permitted
Hungary
Not Permitted
Ireland
Not Permitted
Italy
Not Permitted
Latvia
Not Permitted
Lithuania
Not Permitted
Luxembourg
Not Permitted
Malta
Not Permitted
Netherlands
Not Permitted
Poland
Not Permitted
Portugal
Not Permitted
Romania
Not Permitted
Slovakia
Not Permitted
Slovenia
Not Permitted
Spain
Not Permitted
Sweden
Not Permitted
United Kingdom
Not Permitted
Australia
Not Permitted
New Zealand
Not Permitted

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Derived from animal products - yes

921 - Cystine, L-and its hydrochlorides sodium and potassium salts: Flour treatment agent derived from animal hair and chicken feathers. If from China - human hair. Used in shampoo and chicken flavouring. Bread enhancer. It stabilises the structure of leavened bread. Aid to detoxification of many chemicals related to smoking, prevent hangovers and also prevent brain and liver damage due to alcohol consumption. Useful for rheumatoid arthritis, helps the immune system and promotes healing. Is a known neurotoxin.

MBM Foods

Aggravates food intolerances - yes

921 - Cystine, L-and its hydrochlorides sodium and potassium salts: Diabetics should be aware that there are some reports that it may interfere with insulin and there are anecdotal reports that it can react with monosodium glutamate (E621) in individuals who suffer from the so called Chinese restaurant syndrome, a set of symptoms, including headache, burning sensations, dizziness and disorientation.

Angelfire-Food Intolerance, Allergies and Adverse Reactions

Genetically engineered - yes

921 - Cystine, L-and its hydrochlorides sodium and potassium salts: Classically, cystine is won from proteins that are rich in cystine, such as may be found in human hair or in feathers or pig bristles. Component proteins are split by being heated with hydrochloric acid, which allows cystine to be isolated. For a long time, the bio-technological production of cystine was considered to be expensive and difficult. Since then, a German company (Wacker Chemie) has been successful in applying biotechnical processes to E. coli (Escherichia. coli) bacteria for a profitable fermentative production of cystine. The E. coli bacteria use glucose (sugar) and some mineral salts to produce the desired cystine in large quantities and convey the amino acid into the nutrient solution. The process has been applied since 2001.

GMO Compass

Derived from animal products - yes

921 - Cystine, L-and its hydrochlorides sodium and potassium salts: Flour treatment agent derived from animal hair and chicken feathers

DFlock

(2R)-2-amino-3-[(2R)-2-amino-3-hydroxy-3-oxopropyl]disulfanylpropanoic acid
cysteine disulfide
L-cystine
dicysteine
gelucystine

Collection of sources used to create this food additive summary.

Source
Codex Alimentarius
Food Standards Australia New Zealand
UK Food Guide
UK Food Standards Agency
U.S. Food and Drug Administration

Lists the U.S. CAS (Chemical Abstracts Service) registry number and EINECS (European INventory of Existing Commercial chemical Substances) numbers when known.

  • CAS Number: 56-89-3
  • EINECS Number: 200-296-3

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