Carotenoids in food chain studies—III. Resorption and metabolic transformation of carotenoids in Mytilus edulis (Edible mussel)

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry Pub Date : 1989-01-01 DOI:10.1016/0305-0491(89)90272-1

Vassilia Partali , Karl Tangen , Synnøve Liaaen-Jensen

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引用次数: 35

Abstract

1.
1. The quantitative carotenoid composition of M. edulis from two geographical localities at different seasons is reported.
2.
2. Twenty different carotenoids are structurally identified. Carotenoids with an acetylenic 3-hydroxy-7,8-didenhydro β-end group accumulate in M. edulis.
3.
3. Feeding experiments with algal unicultures are reported.
4.
4. Fucoxanthin, 19′-hexanoyloxyfucoxanthin, diadinoxanthin and peridinin were resorbed.
5.
5. Hydrolysis of carotenoid acetates, conversion of allenic to acetylenic end groups and conversion of 5,6-epoxides to 5,6-glycols were general metabolic reactions.
6.
6. Fucoxanthin provides isomytiloxanthin, confirmed by conversion of 19′-hexanoyloxyfucoxanthin to 19′-hexanoyloxyisomytiloxanthin.
7.
7. Fucoxanthin is converted to halocynthiaxanthin.
8.
8. The diacetylenic alloxanthin is a terminal metabolic product.
9.
9. Peridinin is converted to peridininol and pyrrhoxanthinol.
10.
10. Metabolic schemes are proposed.

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类胡萝卜素在食物链中的研究——iii。贻贝类胡萝卜素的吸收和代谢转化

1.1. 报道了两个地理地点不同季节毛竹的类胡萝卜素含量。20种不同的类胡萝卜素在结构上得到了鉴定。具有乙炔3-羟基-7,8-二denhydro β-端基的类胡萝卜素在M. edulis中积累。报道了用藻类培养物饲养的实验。岩藻黄质、19′-己氧基岩藻黄质、二氧基岩藻黄质和橄榄素被重新吸收。类胡萝卜素醋酸酯水解、丙烯端基转化为乙炔端基和5,6-环氧化合物转化为5,6-乙二醇是一般的代谢反应。通过19′-己氧基岩藻黄素转化为19′-己氧基异氧基岩藻黄素，证实了岩藻黄素可提供异藻黄素。岩藻黄质转化为卤藻黄质。二乙基别黄质是终末代谢产物。桂枝苷转化为桂枝醇和吡咯黄嘌呤。10.10。提出了代谢方案。

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