Process for obtaining a dye substance of vegetal origin

Details Process for obtaining a dye substance of vegetal origin Process for obtaining a dye substance of vegetal origin

1976-11-01

1979-05-22

Czaja, Donald E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

8 53, 8 80, 426429, 426431, 426489, 195 7, 536 1, C09B 6100, C07H 1504

Patent

active

041560779

ABSTRACT:
A method of producing anthocyanin, comprising the steps of treating sunflower seed husks containing anthocyanin at ambient temperature and in a non-oxidizing atmosphere with an acid solution selected from a group consisting of water and an organic or inorganic acid, organic solvent and an organic or inorganic acid, organic solvent and aqueous solution of an organic or inorganic acid, and pure liquid organic acid, then filtering the resulting solution and concentrating the filtrate under vacuum at a temperature between 35.degree. C. to 40.degree. C., to obtain a red colored liquid substance.

REFERENCES:
patent: 3963700 (1976-06-01), Philip
Brummett, B. Pigment & Chromogen Characteristics of Sunflower Seed, Helianthus annus, University Microfilms, Ann Arbor.

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