Bixin is an apocarotenoid found in annatto, a natural food coloring obtained from the seeds of the achiote tree (Bixa orellana). Annatto seeds contain about 5% pigments, which consist of 70-80% bixin. Bixin is chemically unstable when isolated and converts via isomerization into trans-bixin (β-bixin), the double-bond isomer. Bixin is soluble in f...
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http://en.wikipedia.org/wiki/Bixin
A monomethyl ester of a 24-carbon branched unsaturated dicarboxylic acid; a carotenoid (a carotene-dioic acid); the orange-red colouring matter from seeds of Bixa orellana; the ethyl ester is used as a food and drug colourant. ... See: annotto. ... (05 Mar 2000) ...
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http://www.encyclo.co.uk/local/20973
Type: Term Pronunciation: bik′sin Definitions: 1. A monomethyl ester of a 24-carbon branched unsaturated dicarboxylic acid; a carotenoid (a carotene-dioic acid); the orange-red coloring matter from seeds of Bixa orellana; the ethyl ester is used as a food and drug colorant.
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http://www.medilexicon.com/medicaldictionary.php?t=10536
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