meatTheory and practice of meat processingТеория и практика переработки мяса2414-438X2414-441XФГБНУ «Федеральный научный центр пищевых систем им. В.М. Горбатова» РАН10.21323/2414-438X-2019-4-3-4-6meat-117Research ArticleСтатьиASSESSING THE EFFECT OF THERMAL TREATMENT ON MEAT PROTEINS USING PROTEOMIC METHODSASSESSING THE EFFECT OF THERMAL TREATMENT ON MEAT PROTEINS USING PROTEOMIC METHODSChernukhaIrina M.ChernukhaIrina M.

Doctor of technical sciences, professor, corresponding member to the Russian Academy of Sciences, leading research scientist, Experimental clinic-laboratory «Biologically active substances of an animal origin»

109316, Moscow, Talalikhina str., 26. Tel: +7–495–676–63–21.

Doctor of technical sciences, professor, corresponding member to the Russian Academy of Sciences, leading research scientist, Experimental clinic-laboratory «Biologically active substances of an animal origin»

109316, Moscow, Talalikhina str., 26. Tel: +7–495–676–63–21.

imcher@inbox.ruAkhremkoAnastasiya G.AkhremkoAnastasiya G.

Research assistant, Experimental clinic-laboratory «Biologically active substances of an animal origin»

109316, Moscow, Talalikhina str., 26. Tel.: +7–495–676–92–11.

Research assistant, Experimental clinic-laboratory «Biologically active substances of an animal origin»

109316, Moscow, Talalikhina str., 26. Tel.: +7–495–676–92–11.

a.ahremko@fncps.ruV. M. Gorbatov Federal Research Center for Food Systems of Russian Academy of SciencesРоссияV. M. Gorbatov Federal Research Center for Food Systems of Russian Academy of SciencesRussian Federation2019151020194346Copyright © Chernukha I.M., Akhremko A.G., 20192019Chernukha I.M., Akhremko A.G.Chernukha I.M., Akhremko A.G.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.meatjournal.ru/jour/article/view/117

The results of studying the effect of various temperatures on the protein composition of minced meat from porcine m. longissimus dorsi by two-dimensional electrophoresis are presented. The most complete distribution of protein fractions was observed in fresh raw minced meat, and when it was exposed to negative temperature, there was a sharp decrease in protein components (carbonic anhydrase 3, αβ-crystallin), as well as a decrease in the staining intensity of protein spots of the main constitutive fractions (tropomyosin alpha 1, myosin light chain 1). In the case of heat treatment, structural muscle proteins were retained with some changes in high molecular weight fractions, namely, protein molecules degraded to compounds with a simpler structure. It was noted that fractions of tropomyosin β-chain, triosephosphate isomerase 1, myosin light chains 2 were not detected after minced meat was frozen, while tropomyosin alpha 1 was retained in all samples.

The results of studying the effect of various temperatures on the protein composition of minced meat from porcine m. longissimus dorsi by two-dimensional electrophoresis are presented. The most complete distribution of protein fractions was observed in fresh raw minced meat, and when it was exposed to negative temperature, there was a sharp decrease in protein components (carbonic anhydrase 3, αβ-crystallin), as well as a decrease in the staining intensity of protein spots of the main constitutive fractions (tropomyosin alpha 1, myosin light chain 1). In the case of heat treatment, structural muscle proteins were retained with some changes in high molecular weight fractions, namely, protein molecules degraded to compounds with a simpler structure. It was noted that fractions of tropomyosin β-chain, triosephosphate isomerase 1, myosin light chains 2 were not detected after minced meat was frozen, while tropomyosin alpha 1 was retained in all samples.

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DOI: 10.21323/2071–2499–2019–3–46–48 (In Russian)Database «Proteomics of Muscular Organs». [Electronic resource: http://mp.inbi.ras.ru Access date 22.07.2019]Database «Proteomics of Muscular Organs». [Electronic resource: http://mp.inbi.ras.ru Access date 22.07.2019]

The authors declare that there are no conflicts of interest present.