Metabolism of cryptoxanthin in freshwater fish*

Publisher： Cambridge University Press

E-ISSN： 1475-2662|52|3|575-581

ISSN： 0007-1145

Source： British Journal of Nutrition, Vol.52, Iss.3, 1984-11, pp. : 575-581

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Abstract

1. In search of other provitamins A, the metabolism of cryptoxanthin was studied in several species of freshwater fish, i.e. Chunna gachua, Labeo boga (retinol-rich) and Heteropneustes fossilis (dehydroretinol-rich). The fish were either allowed to starve for 20–25 d to make their intestines free from carotenoids and vitamin A or kept on a vitamin-A-deficient diet for 140–150 d to deplete the initial reserve of vitamin A in the livers.

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