Gelation properties of myofibrillar protein under malondialdehyde-induced oxidative stress
Background: The structure of myofibrillar protein (MP) can be readily altered by oxidation, leading to the unfolding of MP structure, which further promotes protein–protein interactions, and thus influences the MP gelling properties. The objective of the study was to investigate the effect of malond...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
John Wiley and Sons Inc.
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/50802 |
| _version_ | 1848758539254759424 |
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| author | Wang, L. Zhang, M. Fang, Zhongxiang Bhandari, B. |
| author_facet | Wang, L. Zhang, M. Fang, Zhongxiang Bhandari, B. |
| author_sort | Wang, L. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Background: The structure of myofibrillar protein (MP) can be readily altered by oxidation, leading to the unfolding of MP structure, which further promotes protein–protein interactions, and thus influences the MP gelling properties. The objective of the study was to investigate the effect of malondialdehyde-induced oxidative stress on the gelation properties of myofibrillar protein (MP). Structural changes of the oxidised MPs were evaluated by the contents of carbonyl and total sulfhydryls, surface hydrophobicity, SDS-PAGE and Fourier transform infrared spectroscopy. The oxidative stability of the MP gels as indicated by lipid hydroperoxide was also determined. Results: With the addition of an MDA concentration less than 10 mmol L-1, the MP gels showed an improved elasticity, gel strength, water holding capacity, and oxidative stability. Nevertheless, higher MDA concentration (25–50 mmol L-1) significantly reduced the gel quality, probably due to the formation of excessive covalent bonds in the system. Conclusion: Results suggested that protein aggregation occurred in the oxidised system. Myosin was involved in gel formation through non-disulfide covalent bond. © 2016 Society of Chemical Industry. |
| first_indexed | 2025-11-14T09:45:36Z |
| format | Journal Article |
| id | curtin-20.500.11937-50802 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:45:36Z |
| publishDate | 2017 |
| publisher | John Wiley and Sons Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-508022023-02-22T06:24:21Z Gelation properties of myofibrillar protein under malondialdehyde-induced oxidative stress Wang, L. Zhang, M. Fang, Zhongxiang Bhandari, B. Background: The structure of myofibrillar protein (MP) can be readily altered by oxidation, leading to the unfolding of MP structure, which further promotes protein–protein interactions, and thus influences the MP gelling properties. The objective of the study was to investigate the effect of malondialdehyde-induced oxidative stress on the gelation properties of myofibrillar protein (MP). Structural changes of the oxidised MPs were evaluated by the contents of carbonyl and total sulfhydryls, surface hydrophobicity, SDS-PAGE and Fourier transform infrared spectroscopy. The oxidative stability of the MP gels as indicated by lipid hydroperoxide was also determined. Results: With the addition of an MDA concentration less than 10 mmol L-1, the MP gels showed an improved elasticity, gel strength, water holding capacity, and oxidative stability. Nevertheless, higher MDA concentration (25–50 mmol L-1) significantly reduced the gel quality, probably due to the formation of excessive covalent bonds in the system. Conclusion: Results suggested that protein aggregation occurred in the oxidised system. Myosin was involved in gel formation through non-disulfide covalent bond. © 2016 Society of Chemical Industry. 2017 Journal Article http://hdl.handle.net/20.500.11937/50802 10.1002/jsfa.7680 John Wiley and Sons Inc. unknown |
| spellingShingle | Wang, L. Zhang, M. Fang, Zhongxiang Bhandari, B. Gelation properties of myofibrillar protein under malondialdehyde-induced oxidative stress |
| title | Gelation properties of myofibrillar protein under malondialdehyde-induced oxidative stress |
| title_full | Gelation properties of myofibrillar protein under malondialdehyde-induced oxidative stress |
| title_fullStr | Gelation properties of myofibrillar protein under malondialdehyde-induced oxidative stress |
| title_full_unstemmed | Gelation properties of myofibrillar protein under malondialdehyde-induced oxidative stress |
| title_short | Gelation properties of myofibrillar protein under malondialdehyde-induced oxidative stress |
| title_sort | gelation properties of myofibrillar protein under malondialdehyde-induced oxidative stress |
| url | http://hdl.handle.net/20.500.11937/50802 |