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Dynamics of purple sulfur bacteria in a meromictic saline Lake Shunet (Khakassia, Siberia) in 2007–2013 / D. Y. Rogozin, V. V. Zykov, M. O. Tarnovskii // Microbiology. - 2016. - Vol. 85, Is. 1. - P93-101, DOI 10.1134/S0026261716010100 . - ISSN 0026-2617
Кл.слова (ненормированные):
long-term dynamics -- meromictic lake -- purple sulfur bacteria -- stratification
Аннотация: According to the results of seasonal monitoring, in 2007–2013 purple sulfur bacteria morphologically similar to Thiocapsa sp. Shira_1 (AJ633676 in EMBL/GenBank) predominated in the anoxygenic phototrophic community of the water column of the meromictic Lake Shira (Khakassia, Siberia). No pronounced seasonal periodicity in the total cell number in the water column was revealed during the period of observation. In some years cell number during the period when the lake was covered with ice was reliably higher than in summer. The absence of seasonal periodicity was probably due to the low amplitude of seasonal variations in temperature and illumination in the redox zone, resulting from its relatively deep location (12–16 m). The year-to-year dynamics was characterized by a reliable decrease of the total cell number in 2009–2010 and maxima in 2007 and 2011–2012. Canonical correlation analysis revealed that water temperature in the redox zone was the best predictor of the PSB abundance in Lake Shira. Water temperature, in turn, depended on the depth of mixing of the water column. Intense mixing in 2009–2011 was probably responsible for decreased PSB abundance in the lake. On the other hand, the absence of deep winter mixing, resulting in stable conditions in the chemocline, favored the preservation of relatively high PSB biomass. Prediction of circulation depth, which depends mainly on the weather conditions and dynamics of the water level, is required for prediction of PSB abundance in Lake Shira. These results may be useful for paleolimnological reconstructions of the history of the lake based on the remnants of purple sulfur bacteria in bottom sediments. © 2016, Pleiades Publishing, Ltd.

Scopus,
WOS
Держатели документа:
Institute of Biophysics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Rogozin, D. Y.; Zykov, V. V.; Tarnovskii, M. O.

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The benefit-risk analysis of omega-3 polyunsaturated fatty acids and heavy metals in seven smoked fish species from Siberia / M. I. Gladyshev, O. V. Anishchenko, O. N. Makhutova [et al.] // J. Food Compos. Anal. - 2020. - Vol. 90. - Ст. 103489, DOI 10.1016/j.jfca.2020.103489 . - ISSN 0889-1575
Кл.слова (ненормированные):
Coregonus -- Docosahexaenoic acid -- Eicosapentaenoic acid -- GenBank -- Hazard quotients -- Lead
Аннотация: In cold smoked species of genus Coregonus, identified by molecular genetic analysis, contents of fatty acids and heavy metals and arsenic were measured. The highest content of sum of long-chain polyunsaturated fatty acids of omega-3 family (LC-PUFA), namely eicosapentaenoic (EPA) and docosahexaenoic (DHA) fatty acids, 6.53 ± 0.78 mg g?1 wet weight, was characteristic of tugun Coregonus tugun. This is the first quantitative estimation (mg LC-PUFA per g of product) of the nutritive value of smoked fish. Thus, to obtain a daily personal doze of EPA + DHA of 1 g, recommended for prevention of cardiovascular diseases, one needs to consume 153 g of the smoked tugun. Metals contents did not exceed standards for fish meat except Pb in least cisco Coregonus sardinella. Accordingly, values of hazard quotients, which estimate benefit-risk ratio of fish intake, indicate that most of the smoked fish species are safe product for human nutrition, except least cisco regarding Pb content. © 2020 Elsevier Inc.

Scopus
Держатели документа:
Institute of Biophysics of Siberian Branch of Russian Academy of Sciences, Akademgorodok, 50/50, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Svobodny av. 79, Krasnoyarsk, 660041, Russian Federation
Federal Regional Center for Standardization, Metrology and Testing in the Krasnoyarsk Region, 1a Vavilov Str., Krasnoyarsk, 660093, Russian Federation

Доп.точки доступа:
Gladyshev, M. I.; Anishchenko, O. V.; Makhutova, O. N.; Kolmakova, O. V.; Trusova, M. Y.; Morgun, V. N.; Gribovskaya, I. V.; Sushchik, N. N.

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The benefit-risk analysis of omega-3 polyunsaturated fatty acids and heavy metals in seven smoked fish species from Siberia / M. I. Gladyshev, O. V. Anishchenko, O. N. Makhutova [et al.] // J. Food Compos. Anal. - 2020. - Vol. 90: 12th International Food Data Conference (IFDC) (OCT 11-13, 2017, Buenos Aires, ARGENTINA). - Ст. 103489, DOI 10.1016/j.jfca.2020.103489. - Cited References:66. - The work was supported by the Russian Science Foundation grant (No. 16-14-10001). . - ISSN 0889-1575. - ISSN 1096-0481

РУБ Chemistry, Applied + Food Science & Technology
Рубрики:
FRESH-WATER
   COMMERCIAL FISH
   MUSCLE-TISSUE
   COREGONUS
   MERCURY
Кл.слова (ненормированные):
Eicosapentaenoic acid -- Docosahexaenoic acid -- Coregonus -- Hazard -- quotients -- Lead -- GenBank
Аннотация: In cold smoked species of genus Coregonus, identified by molecular genetic analysis, contents of fatty acids and heavy metals and arsenic were measured. The highest content of sum of long-chain polyunsaturated fatty acids of omega-3 family (LC-PUFA), namely eicosapentaenoic (EPA) and docosahexaenoic (DHA) fatty acids, 6.53 +/- 0.78 mg g(-1) wet weight, was characteristic of tugun Coregonus tugun. This is the first quantitative estimation (mg LC-PUFA per g of product) of the nutritive value of smoked fish. Thus, to obtain a daily personal doze of EPA + DHA of 1 g, recommended for prevention of cardiovascular diseases, one needs to consume 153 g of the smoked tugun. Metals contents did not exceed standards for fish meat except Pb in least cisco Coregonus sardinella. Accordingly, values of hazard quotients, which estimate benefit-risk ratio of fish intake, indicate that most of the smoked fish species are safe product for human nutrition, except least cisco regarding Pb content.

WOS
Держатели документа:
Russian Acad Sci, Siberian Branch, Inst Biophys, Akademgorodok 50-50, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Svobodny Av 79, Krasnoyarsk 660041, Russia.
Fed Reg Ctr Standardizat Metrol & Testing Krasnoy, 1a Vavilov Str, Krasnoyarsk 660093, Russia.

Доп.точки доступа:
Gladyshev, Michail I.; Anishchenko, Olesia V.; Makhutova, Olesia N.; Kolmakova, Olesia V.; Trusova, Maria Y.; Morgun, Vasiliy N.; Gribovskaya, Iliada V.; Sushchik, Nadezhda N.; Russian Science FoundationRussian Science Foundation (RSF) [16-14-10001]

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