GLUTATHIONE ANTIOXIDANT COMPLEX AND QUALITATIVE COMPOSITION OF CAROTENOIDS IN TISSUES OF THE BIVALVE MOLLUSK <i>ANADARA KAGOSHIMENSIS</i> (TOKUNAGA, 1906)
Tissue specificity of the state of glutathione complex - reduced glutathione (GSH), activity of glutathione reductase (GR) and glutathione peroxidase (GP) - was investigated in the bivalve mollusk Ana-dara kagoshimensis (Tokunaga, 1906). Using high performance liquid chromatography, UV-VIS-spectra and mass spectra, 7 types of carotenoids (trans- and cis-pectenolon, alloxanthin, pectenol A, b-carotene, zeaxanthin and diatoxanthin) were identified in tissues of this species and their quantitative ratio was determined. A positive correlation (R<sup>2</sup> > 0.9) between the GSH levels in tissues and the content of most carotenoids was found. Negative correlation was shown for the systems «GR -carotenoids» (R<sup>2</sup> > 0.75) and «GP-pectenol A» (R<sup>2</sup> > 0.988). The cause-and-effect relations of these findings are considered.