Title

The biosynthesis of astaxanthin. VI. the carotenoids in the prawn, Penaeus japonicus bate (part II)

Document Type

Article

Date of Original Version

1-1-1972

Abstract

1. 1. The carotenoids of the prawn, Penaeus japonicus Bate, have been separated by absorption chromatography and further characterized by their absorption spectra and behaviour on the column.In some cases, reactions for specific functional groups were performed. 2. 2. The carapaces of the prawn contain astaxanthin, phoenicoxanthin, dihydroxy-piradixanthin, 3,3'-dihydroxy-ε{lunate}-carotene, and traces of lutein, zeaxanthin, canthaxanthin, echinenone, and β-carotene. 3. 3. The major pigments of the internal organs of the prawn were found to be: astaxanthin, β-carotene, echinenone, canthaxanthin, 3,3'-dihydroxy-ε{lunate}-carotene and the minor pigment in them was dihydroxypiradixanthin. 4. 4. The following metabolic pathway from β-carotene to astaxanthin was proposed:- β-carotene → echinenone → canthaxanthin → phoenicoxanthin → astaxanthin. © 1972.

Publication Title

International Journal of Biochemistry

Volume

3

Issue

15

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