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Vol. 9 (2006 year), No. 5
Rysakova K.S., Novikov V.Yu., Mukhin V.A., Ovchinnikova S.I.
Research of chitinolythetic activity in digestive organs of hydroinvertebrates of the Barents Sea
The investigation results of phytoplankton photosynthetic pigments and species composition in the southern part of the Kola bay in the winter-vernal period have been presented. The maximal chlorophyll Р° concentration during hydrological winter in the surface layer reached 0.043 Вµg/l, in spring - 0.159 Вµg/l. In the bottom layer this index was 0.043 Вµg/l, in the vernal period - 0.119 Вµg/l. On the basis of chlorophyll Р° concentrations, pheophytin Р°, Margalef index and carotenoids/chlorophyll Р° ratio - the indices of the phytoplankton physiological state - during the observation period phytocenosis possessed low photosynthetic and production activity. Low abundance and biomass of micro-algae have corresponded to the conclusions. The active functional state of phytoplankton community during the Polar night and lack of typical for the Barents Sea coastal zone early-vernal micro-algae blossom peak in the southern part of the Kola bay have been explained by the development peculiarities of the estuary pelagic phytocenosis.
(in Russian, стр.6, fig. 6, tables. 3, ref 10, Adobe PDF, Adobe PDF 0 Kb)
Vol. 9 (2006 year), No. 5
Smirnova E.B., Mukhin V.A., Novikov V.Yu.
Temperature influence on activity of aquatic invertebrates' digestive proteinase
The paper considers the specific chitinolythetic activity of the marine hydroinvertebrates' enzymes and use of these enzymes for perfection of technology of chitinous substance reception from crustaceous' armours. Research of chitinolythetic activity of crustaceous and other marine organisms fermental systems has great value for studying biochemistry and organism physiological condition. The knowledge of chitinases is of great importance for technology of updating of chitin and chitosan for production of derivatives, in particular, Рѕligosaccharides, showing high pharmaceutical and biological activity
(in Russian, стр.2, fig. 1, tables. 0, ref 5, Adobe PDF, Adobe PDF 0 Kb)
Vol. 15 (2012 year), No. 1
Piskunovich D.I., Mukhin V.A.
Biochemical assessment of proteolysis of hydrobionts' tissue
In the paper the estimation of efficiency for various methods of degree of proteins degradation for the purpose of their further use in technological practice has been presented. The conclusions about the appropriateness of these methods for identifying substandard raw materials have been made.
(in Russian, стр.6, fig. 4, tables. 5, ref 9, Adobe PDF, Adobe PDF 0 Kb)
Vol. 16 (2013 year), No. 3
Piskunovich D.I., Mukhin V.A., Rysakova K.S., Lyzhov I.I., Golikova L.N.
Biochemical criteria for assessing the quality of the protein component of smoked fish products
The estimation of quality efficiency of smoked fish products at various modes of storage has been presented. The most objective indicators for quality efficiency of protein component of smoked fish products have been revealed: modification of fractional structure of proteins with combination of amine nitrogen determination and a degree of hydrolysis protein. The conclusions about advisability of using these indicators in technological practice have been made.
(in Russian, стр.7, fig. 6, tables. 5, ref 6, Adobe PDF, Adobe PDF 0 Kb)