Recovery of carotenes

Chemistry of hydrocarbon compounds – Alicyclic compound synthesis – Carotene or derivative

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585864, C07C40300

Patent

active

060720921

ABSTRACT:
A process for the recovery of carotenes and the production of carotene concentrate from natural oils and fats. The carotene-containing natural oils and fats is subjected to alcoholic esterification to form a mixture of fatty acid alkyl esters, carotenes, tocopherols and tocotrienols. The alkyl esters mixture is subjected to vacuum distillation at a pressure of less than 60 mTorr and a temperature of less than 180.degree. C. to form a carotene-rich concentrate. The carotenes in the carotene-rich concentrate are adsorptively separated, concentrated and collected as carotene-rich fraction.

REFERENCES:
patent: 5019668 (1991-05-01), Keat et al.
patent: 5157132 (1992-10-01), Tan et al.

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