Short chain diesters and process for making the same

Details Short chain diesters and process for making the same Short chain diesters and process for making the same

1997-11-25

1999-09-28

Richter, Johann

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

Organic compounds

Carboxylic acid esters

C07C 69608

Patent

active

059591382

ABSTRACT:
A process to obtain a product having a high content of zeaxanthin, lutein or mixtures thereof, as short chain organic acid diesters of zeaxanthin, lutein or mixtures thereof, that can be used mainly for the pigmentation of broilers and egg yolks, as well as an intermediate in the cantaxanthin(.beta.,.beta.-Carotene-4,4'-dione) and astaxanthin(3,3'-Dihidroxy .beta.,.beta.-carotene,4,4'-dione) synthesis, by reacting extracts obtained from marigold (Tagetes Erecta L.), or plant extracts that contain lutein, zeaxanthin or mixtures thereof in any proportion, with acetic or propionic anhydride under controlled conditions of temperature and pressure.

REFERENCES:
patent: 4105855 (1978-08-01), Schulz et al.
patent: 5429939 (1995-07-01), Misawa et al.
patent: 5523494 (1996-06-01), Torres-Cardona et al.
Handbook of Chemistry and Physics, The Chemical Rubber Publishing Co., pp. 774-775, Jan. 1961.

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