The qualitative composition of carotenoids and their seasonal dynamics in tissues of the bivalve Anadara kagoshimensis (Tokunaga, 1906)

The qualitative composition of carotenoids and their seasonal dynamics in tissues of the bivalve... A total of six carotenoids, viz., β-carotene, pectenol A, pectenolone (trans- and cis-isomers), zeaxanthin, diatoxanthin, and alloxanthin, as well as esters of alloand diatoxanthin, have been detected in total carotenoid extracts from the tissues of the bivalve Anadara kagoshimensis (Tokunaga, 1906) using the methods of thin-layer chromatography, high-performance liquid chromatography, mass spectrometry, UV-VIS spectroscopy, and characteristic reactions for the identification of chemical groups. The major group (over 90% of the total carotenoids) is comprised of alloxanthin, pectenolone, and allo- and diatoxanthin esters. Tissues of A. kagoshimensis are typically characterized by cyclic variations in the level of carotenoids over the period from winter to summer, with the maxima in February and June and the minimum in April. The largest contribution to the seasonal carotenoid dynamics is made by the major group of pigments (R 2 = 0.75–0.99), which depends on the pattern of succession of diatomic microalgae during the annual cycle. The pathways of metabolic transformation of the carotenoids in tissues of this bivalve are discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Marine Biology Springer Journals

The qualitative composition of carotenoids and their seasonal dynamics in tissues of the bivalve Anadara kagoshimensis (Tokunaga, 1906)

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Publisher
Springer Journals
Copyright
Copyright © 2016 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Freshwater & Marine Ecology
ISSN
1063-0740
eISSN
1608-3377
D.O.I.
10.1134/S1063074016020024
Publisher site
See Article on Publisher Site

Abstract

A total of six carotenoids, viz., β-carotene, pectenol A, pectenolone (trans- and cis-isomers), zeaxanthin, diatoxanthin, and alloxanthin, as well as esters of alloand diatoxanthin, have been detected in total carotenoid extracts from the tissues of the bivalve Anadara kagoshimensis (Tokunaga, 1906) using the methods of thin-layer chromatography, high-performance liquid chromatography, mass spectrometry, UV-VIS spectroscopy, and characteristic reactions for the identification of chemical groups. The major group (over 90% of the total carotenoids) is comprised of alloxanthin, pectenolone, and allo- and diatoxanthin esters. Tissues of A. kagoshimensis are typically characterized by cyclic variations in the level of carotenoids over the period from winter to summer, with the maxima in February and June and the minimum in April. The largest contribution to the seasonal carotenoid dynamics is made by the major group of pigments (R 2 = 0.75–0.99), which depends on the pattern of succession of diatomic microalgae during the annual cycle. The pathways of metabolic transformation of the carotenoids in tissues of this bivalve are discussed.

Journal

Russian Journal of Marine BiologySpringer Journals

Published: May 12, 2016

References

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