Production of zeaxanthin

Details Production of zeaxanthin Production of zeaxanthin

1974-07-18

1976-04-20

Janenholtz, Alvin E.

Textiles: fiber preparation

195 96, C12D 1302

Patent

active

039517420

ABSTRACT:
A process for the preparation of zeaxanthin which comprises culturing a microorganism of the genus Flavobacter producing this pigment, in a nutrient medium containing at least one carbohydrate as assimilable carbon source, at least one source of assimilable amino nitrogen containing free amino acids, mineral salts, oligoelements and vitamins, the spectrum of amino acids of the medium being modified by increasing the content in the medium of at least one of the sulphur-containing amino acids methionine, cystine and cysteine, in relation to the content in the medium of other amino acids, whilst limiting the quantity of the sulphur-containing amino acid added to the medium to a value not exceeding 1 mg/ml, and continuing culturing until a substantial quantity of intracellular zeaxanthin has been obtained.

REFERENCES:
Chemical Abstracts, Vol. 70, 139061h, 1972.

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