Isolation and structure elucidation of minor carotenoids from annatto (Bixa orellana L.) seeds

被引:41
作者
Mercadante, AZ [1 ]
Steck, A [1 ]
Pfander, H [1 ]
机构
[1] Univ Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland
关键词
Bixa orellana; Bixaceae; annatto; carotenoids; dimethyl (9Z,9 ' Z)-6,6 '-diapocarotene-6,6 '-dioate; methyl (9Z)-10 '-oxo-6,10 '-diapocaroten-6-oate; methyl (9Z)-6 '-oxo-6,5 '-diapocaroten-6-oate; dimethyl (9Z)-6,6 '-diapocarotene-6,6 '-dioate; methyl (9Z)-8 '-oxo-6,8 '-diapocaroten-6-oate; methyl (4Z)-4,8-dimethyl-12-oxo-dodecyl-2,4,6,8,10-pentaenoate;
D O I
10.1016/S0031-9422(97)00462-7
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
From the seed coat of Bixa orellana fruits, six minor carotenoids and one C-14-carotenoid derivative were isolated by chromatography (CC, TLC, HPLC) and their structures elucidated by means of spectroscopy (UV-visible, MS, H-1 and C-13 NMR). Dimethyl (9Z,9'Z)-6,6'-diapocarotene-6,6'-dioate, methyl (9Z)-10'-oxo-6,10'-diapocaroten-6-oate, methyl (9Z)-6'-oxo-6,5'-diapocaroten-6-oate and methyl (4Z)-4,8-dimethyl-12-oxododecyl-2,4,6,8,10-pentaenoate are new compounds, whereas methyl bixin and methyl (9Z)-8'-oxo-6,8'-diapocaroten-6-oate have previously been found in annatto. (C) 1997 Published by Elsevier Science Ltd.
引用
收藏
页码:1379 / 1383
页数:5
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