Method for extracting carotenoid pigments from citrus oils

Details Method for extracting carotenoid pigments from citrus oils Method for extracting carotenoid pigments from citrus oils

1977-02-18

1978-11-21

Hunter, Jeanette M.

Food or edible material: processes, compositions, and products

Products per se, or processes of preparing or treating...

Specific dye or pigment per se or compositions containing same

426489, 426492, 2603406, 2602366, A23L 127

Patent

active

041267095

ABSTRACT:
Deriving carotenoid coloring agents from citrus by extracting the natural peel oil from the flavedo of the fruit, treating the oil to remove the undesirable sterols, coumarins and other undesirable waxes therein, and thereafter deterpenating the de-waxed oil by successively folding the oil to a concentration of at least 15-fold in order to remove the major portion of the limonene therein. The de-waxed and deterpenated oil is then distilled under vacuum in a molecular still at a pressure between about 10 microns to 1.0 millimeters of mercury, and at a temperature of between 90.degree. to 120.degree. C to remove the balance of the unwanted constituents and to provide the desired concentrated carotenoids as an output thereof.

REFERENCES:
patent: 3523138 (1970-08-01), Grant
patent: 3725083 (1973-04-01), Barron et al.
patent: 3906112 (1975-09-01), Anderson
Burdick, E. M., Extraction and Utilization of Carotenes and Xanthophylls, Economic Botany, 1956, pp. 267-279.

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