Title

The Biosynthesis of Astaxanthin—VIII: The Conversion of Labelled β-carotene-15,15'-3h2 into Astaxanthin in Prawn, Penaeus japonicus Bate

Document Type

Article

Date of Original Version

1-1-1972

Abstract

To clarify the metabolic pathway from β-carotene to astaxanthin which was proposed in this thesis series, the present investigation was undertaken. Astaxanthin is the dominant pigment in prawn, Penaeus japonicus Bate. Prawn were cultured in the laboratory for 21 days by feeding artificial food containing labelled β-carotene-15, 15'-3H2 dissolved in plant oil. In prawn, β-carotene-15,15'-3H2 was converted to labelled astaxanthin via echinenone, canthaxanthin and phoenicoxanthin. The metabolic pathway fromβ-carotene to astaxanthin in prawn is as follows: β-carotine--►echinenone-►canthaxanthin -►phoenicoxanthin-►astaxanthin chichesteret al.12)recently found that in a Californian strain of Artemia salina, the two step conversion of β-carotene into canthaxanthin was the apparent pathway as follows: This was achieved by feeding [14C] labelled β-carotene. /9-carotene-——^echinenone-^canthaxanthin 1 t T. t isocryptoxanthin-risozeaxanthin ^hydroxy-T-ketO'/S-carotene. © 1972, The Japanese Society of Fisheries Science. All rights reserved.

Publication Title

NIPPON SUISAN GAKKAISHI

Volume

38

Issue

10

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