Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0981-9428(00)01221-3
Title: In vitro biosynthesis of xanthophylls by cell extracts of a green alga chlorococcum
Authors: Beihui, L.
Lee Yuan Kun 
Keywords: Carotenogenic
Chlorococcum
In vitro
Xanthophylls
Issue Date: 2001
Source: Beihui, L., Lee Yuan Kun (2001). In vitro biosynthesis of xanthophylls by cell extracts of a green alga chlorococcum. Plant Physiology and Biochemistry 39 (2) : 147-154. ScholarBank@NUS Repository. https://doi.org/10.1016/S0981-9428(00)01221-3
Abstract: The ability of a cell-free carotenogenic system from the green alga Chlorococcum sp. to convert non-radiolabelled β-carotene into echinenone, canthaxanthin and other endogenous xanthophylls was exploited. Carotenogenic activities of this in vitro system varied with different introductions of β-carotene as substrate. Optimal activities were obtained when β-carotene was provided in chloroform (1%, v/v) and cholic acid (0.1%, w/v) as well as when L-α-phosphatidylcholine (100-200 μg per incubation) was present in the incubation mixture. The present investigation also indicated that oxygen was essential for the conversions. The effects of both dioxygenase cofactors and monooxygenase cofactors were presented. It was found that a dioxygenase cofactor mixture of Fe 2+, ascorbic acid and 2-oxoglutarate was required to the carotenogenic activities. © 2001 Éditions scientifiques et médicales Elsevier SAS.
Source Title: Plant Physiology and Biochemistry
URI: http://scholarbank.nus.edu.sg/handle/10635/130985
ISSN: 09819428
DOI: 10.1016/S0981-9428(00)01221-3
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