Effect of the way of cooking on contents of essential polyunsaturated fatty acids in filets of zander

Gladyshev, Michail I.; Sushchik, Nadezhda N.; Gubanenko, Galina A.; Makhutova, Olesia N.; Kalachova, Galina S.; Речкина, Е А; Malyshevskaya, Kseniya K.

doi:10.17221/365/2013-cjfs

Cited by 29 publications

(23 citation statements)

References 21 publications

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“…Detailed descriptions of the chromatographic and mass-spectrometric conditions are given elsewhere [46]. Detailed descriptions of the chromatographic and mass-spectrometric conditions are given elsewhere [46].…”

Section: Fatty Acid Analysismentioning

confidence: 99%

“…A gas chromatograph equipped with a mass spectrometer detector (model 6890/5975C; Agilent Technologies, USA) and with a 30-m long, 0.25-mm internal diameter capillary HP-FFAP column was used for FAME analysis. Detailed descriptions of the chromatographic and mass-spectrometric conditions are given elsewhere [46]. The FAME were quantified according to the peak area of the internal standard, 19:0-FAME, which we added to samples prior to lipid extraction.…”

Section: Fatty Acid Analysismentioning

confidence: 99%

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Fatty Acid Composition and Contents of Seven Commercial Fish Species of Genus Coregonus from Russian Subarctic Water Bodies

Gladyshev

Sushchik

Makhutova

et al. 2017

Lipids

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In several Russian northern lakes and rivers, Arctic cisco Coregonus autumnalis, least cisco C. sardinella, peled C. peled, tugun C. tugun, broad whitefish C. nasus, whitefish C. lavaretus and vendace C. albula were sampled in periods of officially permitted commercial fishery. Special attention was paid to contents (mg g of wet weight) of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in muscle tissues (filets), which are essential for human nutrition. The highest values of EPA + DHA content in semi-anadromous fish and freshwater fish were recorded for C. autumnalis from the Yenisei River, 17.60 mg g wet weight, and for C. lavaretus from the Sobachye Lake, 16.61 mg g wet weight, respectively. Intra-genus variations of EPA + DHA contents of Coregonus species were from 1.87 to 17.60 mg g wet weight. Since the congeneric species were genetically close to each other, the variations in EPA and DHA contents were thought to be caused primarily by ecological factors: migrational capability, type of feeding and trophic status of aquatic ecosystems. In general, the majority of studied species appeared to be of a high nutritive value for humans, although unfavorable environmental conditions could considerably diminish this value.

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Section: Fatty Acid Analysismentioning

confidence: 99%

Section: Fatty Acid Analysismentioning

confidence: 99%

Fatty Acid Composition and Contents of Seven Commercial Fish Species of Genus Coregonus from Russian Subarctic Water Bodies

Gladyshev

Sushchik

Makhutova

et al. 2017

Lipids

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show abstract

“…A gas chromatograph equipped with a mass spectrometer detector (model 6890/5975C; Agilent Technologies, Santa Clara, CA) and with a 30-m long, 0.25-mm internal diameter capillary HP-FFAP column was used for FAME analysis. Detailed descriptions of the chromatographic and mass spectrometric conditions are given elsewhere (Gladyshev et al, 2014). The FAMEs were quantified according to the peak area of the internal standard, nonadecanoic acid, which we added to samples in a chloroform solution prior to lipid extraction.…”

Section: Biochemical Analysesmentioning

confidence: 99%

Waterbugs (Heteroptera: Nepomorpha and Gerromorpha) as sources of essential n‐3 polyunsaturated fatty acids in Central Siberian ecoregions

et al. 2016

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Summary Aquatic systems are considered to be a main source of essential long‐chain n‐3 polyunsaturated fatty acids (PUFA), which are preferentially synthesized by microalgae and transferred along food chains to terrestrial consumers. Emerging aquatic insects comprise a significant part of this transfer of the essential PUFA from water to land. Quantitative data on PUFA content and composition are available mainly for rheophilic insects while taxa that are characteristic of wetlands and stagnant water bodies, such as aquatic Heteroptera, remain relatively unstudied. We investigated the role of various waterbug taxa (Heteroptera: Nepomorpha and Gerromorpha) inhabiting different ecoregions in temperate Central Siberia (Russia) as potential sources of PUFA. The ecoregions were steppe, forest‐steppe, hemiboreal forest and montane coniferous forest. Although these waterbugs insects are aquatic in both larval and adult stages, they can disperse through the landscape and transfer essential PUFAs from water to land so making them potentially available to terrestrial consumers. Species of Naucoridae, Notonectidae and Corixidae were generally dominant in all ecoregions, attaining maximum biomass in the steppe. We showed that habitat or ecoregion played a major role in the variability of fatty acid composition of Notonectidae and Gerridae but not Corixidae. In contrast, the biochemical composition of the only naucoridae, Ilyocoris cimicoides, was largely affected by life stage. Both the dominant families and species within them differed with respect to their mass‐specific contents of essential long‐chain PUFA of the n‐3 family, namely eicosapentaenoic and docosahexaenoic acids. Corixid species had the highest content of these two essential PUFAs among the waterbug studies, and relative to literature reports for other aquatic insects. Corixids thus appear to be a potentially important vector for transfer of the essential biochemical compounds from water to land, especially in steppe ecoregions with numerous ephemeral water bodies.

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“…Fatty acid methyl esters were subsequently separated with a gas chromatograph–mass spectrometer (model 6890/5975C; Agilent Technologies, USA) equipped with a 30 m long, 0.25‐mm internal diameter capillary column HP‐FFAP. Chromatographic and mass spectrometric conditions were the same as described in our previous works (Gladyshev et al, ). Briefly, the instrument conditions were helium as a carrier gas with flow rate of 1 ml/min; injector temperature 220 °C; column temperature programming from 100 to 180 °C at a rate of 5 °C/min with isothermal 10 min, then next step from 180 to 220 °C at rate of 5 °C/min with 30 min of isothermal regime; interface and ion source temperatures 230 °C; quadrupole temperature 150 °C; electron impact at 70 eV; scanning the ion fragments from 50 to 500 atomic units at 0.6 s per scan.…”

Section: Methodsmentioning

confidence: 99%

Content of highly unsaturated fatty acids in fish from rivers of contrasting temperature

Sushchik

Zuev

Kalachova

et al. 2018

River Research & Apps

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Contents of highly unsaturated long-chain fatty acids of omega-3 family (HUFA); eicosapentaenoic acid (EPA; 20:5n-3); and docosahexaenoic acid (DHA; 22:6n-3) are the principal indicators of the nutritive quality of fish for humans. Effects of environmental factors, first of all water temperature, on EPA and DHA contents in fish tissue are not currently completely understood. To reveal the putative effect of water temperature, fatty acid composition and contents were studied for 6 fish species, inhabiting the cold waters of the Yenisei River (Siberia, Russia) downstream of a dam (hypolimnetic release from reservoir) and its adjacent warm water tributaries (the Mana River and the Kacha River). It was hypothesized that (a) fish species from the cold river would have higher HUFA contents than fish from the warm rivers and (b) temperature would be negatively correlated with HUFA content in fish species.Using gas chromatography-mass spectrometry, distinct species-specific fatty acid profiles were observed, whereas contents of the essential fatty acids, EPA and DHA, in fish species from the cold Yenisei River were in general similar to that from warm tributaries. Thus, in contrast to the first hypothesis, phylogenetic factors overweighed the effect of water temperature and food (benthic invertebrate) composition, on fatty acid composition and HUFA content in fish. For the second hypothesis, for the 2 species inhabiting both cold and warm rivers, only one had higher EPA and DHA content at lower temperatures. Consequently, the response of EPA and DHA content in fish tissue to temperature variations may be species-specific.

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Effect of the way of cooking on contents of essential polyunsaturated fatty acids in filets of zander

Cited by 29 publications

References 21 publications

Fatty Acid Composition and Contents of Seven Commercial Fish Species of Genus Coregonus from Russian Subarctic Water Bodies

Fatty Acid Composition and Contents of Seven Commercial Fish Species of Genus Coregonus from Russian Subarctic Water Bodies

Waterbugs (Heteroptera: Nepomorpha and Gerromorpha) as sources of essential n‐3 polyunsaturated fatty acids in Central Siberian ecoregions

Content of highly unsaturated fatty acids in fish from rivers of contrasting temperature

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