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- W1965695481 abstract "A novel role of ovorubin as a protection system against oxidative damage in eggs from Pomacea canaliculata was investigated. Carotenoid composition, and their antioxidant capacity, as well as the carotenoid-apoprotein interaction, were studied for this lipoglycocarotenoprotein. Carotenoid extracts from ovorubin were analysed by TLC and spectrophotometry. The major carotenoid was astaxanthin in its free (40%), monoester (24%), and diester (35%) forms, mainly esterified with 16:0 fatty acid. The antioxidant capacity of ovorubin carotenoids was studied by the inhibition of microsomal oxidation in a non-enzymatic system, showing strong protection against oxidative damage (IC50=3.9 nmol/mg protein). The carotenoid-apoprotein interaction was studied by spectrophotometry and electrophoresis using reconstituted ovorubin. Astaxanthin does not seem to affect the structural characteristics of ovorubin, however the carotenoid-protein association significantly protected astaxanthin against oxidation. Ovorubin therefore, besides its role in providing energy and structural precursors during embryogenesis, would be an antioxidant carrier, protecting at the same time this pigment from oxidation in the perivitellin fluid environment of the egg." @default.
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- W1965695481 date "2004-02-01" @default.
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- W1965695481 title "Antioxidant defense system in the apple snail eggs, the role of ovorubin" @default.
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- W1965695481 doi "https://doi.org/10.1016/j.abb.2003.11.018" @default.
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