Protein degradation of olive flounder (Paralichthys olivaceus) muscle after postmortem superchilled and refrigerated storage
The aim of this study was to investigate the effect of superchilling at −2°C in comparison with refrigerated storage at 4°C on the protein degradation of olive flounder (Paralichthys olivaceus) muscle. Flounder muscle softened and shear force value decreased markedly (P < 0.05) with prolonged sto...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2018-01-01
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| Series: | International Journal of Food Properties |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/10942912.2018.1504786 |
| _version_ | 1818392039673298944 |
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| author | Yongxia Xu Tao Li Chaomin Zhang Xuepeng Li Shumin Yi Jianrong Li Xiaotao Sun |
| author_facet | Yongxia Xu Tao Li Chaomin Zhang Xuepeng Li Shumin Yi Jianrong Li Xiaotao Sun |
| author_sort | Yongxia Xu |
| collection | DOAJ |
| description | The aim of this study was to investigate the effect of superchilling at −2°C in comparison with refrigerated storage at 4°C on the protein degradation of olive flounder (Paralichthys olivaceus) muscle. Flounder muscle softened and shear force value decreased markedly (P < 0.05) with prolonged storage time, while values of electrical conductivity, TCA-soluble peptide, free amino acids, and proteolysis index increased (P < 0.05). The changes were slowed down significantly in samples superchilled at −2°C (P < 0.05). The fracture of muscle fibre and formation of cracks were accelerated in the samples refrigerated at 4°C, and intercellular spaces were observed after 9 days of storage. Moreover, protein bands of myosin heavy chain (MHC), actin, tropomyosin, 97 kDa, 50 ~ 60 kDa and 35 ~ 36 kDa occurred in varying degrees of degradation with storage time. The results demonstrated that significant postmortem degradation of muscle proteins occurred with extending storage time, while the changes were retarded obviously in samples during superchilled storage. |
| first_indexed | 2024-12-14T05:23:05Z |
| format | Article |
| id | doaj.art-52e059eadaac48889a7b226f31436efd |
| institution | Directory Open Access Journal |
| issn | 1094-2912 1532-2386 |
| language | English |
| last_indexed | 2024-12-14T05:23:05Z |
| publishDate | 2018-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | International Journal of Food Properties |
| spelling | doaj.art-52e059eadaac48889a7b226f31436efd2022-12-21T23:15:36ZengTaylor & Francis GroupInternational Journal of Food Properties1094-29121532-23862018-01-012111911192210.1080/10942912.2018.15047861504786Protein degradation of olive flounder (Paralichthys olivaceus) muscle after postmortem superchilled and refrigerated storageYongxia Xu0Tao Li1Chaomin Zhang2Xuepeng Li3Shumin Yi4Jianrong Li5Xiaotao Sun6Bohai UniversityBohai UniversityBohai UniversityBohai UniversityBohai UniversityBohai UniversityBeijing Technology and Business UniversityThe aim of this study was to investigate the effect of superchilling at −2°C in comparison with refrigerated storage at 4°C on the protein degradation of olive flounder (Paralichthys olivaceus) muscle. Flounder muscle softened and shear force value decreased markedly (P < 0.05) with prolonged storage time, while values of electrical conductivity, TCA-soluble peptide, free amino acids, and proteolysis index increased (P < 0.05). The changes were slowed down significantly in samples superchilled at −2°C (P < 0.05). The fracture of muscle fibre and formation of cracks were accelerated in the samples refrigerated at 4°C, and intercellular spaces were observed after 9 days of storage. Moreover, protein bands of myosin heavy chain (MHC), actin, tropomyosin, 97 kDa, 50 ~ 60 kDa and 35 ~ 36 kDa occurred in varying degrees of degradation with storage time. The results demonstrated that significant postmortem degradation of muscle proteins occurred with extending storage time, while the changes were retarded obviously in samples during superchilled storage.http://dx.doi.org/10.1080/10942912.2018.1504786Olive flounderprotein degradationsuperchillingrefrigeration |
| spellingShingle | Yongxia Xu Tao Li Chaomin Zhang Xuepeng Li Shumin Yi Jianrong Li Xiaotao Sun Protein degradation of olive flounder (Paralichthys olivaceus) muscle after postmortem superchilled and refrigerated storage International Journal of Food Properties Olive flounder protein degradation superchilling refrigeration |
| title | Protein degradation of olive flounder (Paralichthys olivaceus) muscle after postmortem superchilled and refrigerated storage |
| title_full | Protein degradation of olive flounder (Paralichthys olivaceus) muscle after postmortem superchilled and refrigerated storage |
| title_fullStr | Protein degradation of olive flounder (Paralichthys olivaceus) muscle after postmortem superchilled and refrigerated storage |
| title_full_unstemmed | Protein degradation of olive flounder (Paralichthys olivaceus) muscle after postmortem superchilled and refrigerated storage |
| title_short | Protein degradation of olive flounder (Paralichthys olivaceus) muscle after postmortem superchilled and refrigerated storage |
| title_sort | protein degradation of olive flounder paralichthys olivaceus muscle after postmortem superchilled and refrigerated storage |
| topic | Olive flounder protein degradation superchilling refrigeration |
| url | http://dx.doi.org/10.1080/10942912.2018.1504786 |
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