Annatto extracts, norbixin-based:IN 160b(ii)

Origin: 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.[2]

Function & characteristics: Bixin is chemically unstable when isolated and converts via isomerization into trans-bixin (β-bixin), the double-bond isomer.Bixin is soluble in fats but insoluble in water. Upon exposure to alkali, the methyl ester is hydrolyzed to produce the dicarboxylic acid norbixin, a water-soluble derivative.

Products: Many different products

Daily intake:Up to 1 mg/kg body weight

Side effects:None

NoDietary restrictions: None


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