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Synergistic effects of UVA irradiation and phlorotannin extracts of Laminaria japonica on properties of grass carp myofibrillar protein gel.
- Source :
-
Journal of the Science of Food & Agriculture . May2021, Vol. 101 Issue 7, p2659-2667. 9p. - Publication Year :
- 2021
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Abstract
- BACKGROUND: Oxidized phlorotannin can be used as a protein crosslinking agent to produce high‐quality fish gel products. Phlorotannin can be easily induced to form quinone compounds in an oxidizing environment, while o‐quinone has been proven to be a reactive, electrophilic intermediate that easily reacts with proteins to form rigid molecular crosslinking networks. The objective of this study was to investigate the synergistic effects of ultraviolet A (UVA) irradiation (1 h, 15 W m−2) and various concentrations of Laminaria japonica phlorotannin extracts (PTE) on the gel properties of grass carp myofibrillar protein (MP). RESULTS: UVA treatment and PTE could synergistically improve the MP gel properties more than PTE alone (P < 0.05). At 625 mmol kg−1 MP PTE alone, the gel strength and cooking yield reached 3.10 ± 0.16 g cm and 47.45 ± 0.35%, respectively, while with the same level of PTE plus UVA they became 4.26 ± 0.19 g cm and 53.89 ± 1.54%, respectively. The three‐dimensional network structure of the gel (with PTE + UVA) showed higher connectivity and tightness than that of the control group (no treatment). CONCLUSIONS: The synergistic effects of PTE and UVA could effectively induce crosslinking of grass carp MP, which could lead to an improvement of MP gel quality. These findings would provide a new technical approach to produce high‐quality protein gel products in the fish processing industry. © 2020 Society of Chemical Industry [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00225142
- Volume :
- 101
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Journal of the Science of Food & Agriculture
- Publication Type :
- Academic Journal
- Accession number :
- 149651258
- Full Text :
- https://doi.org/10.1002/jsfa.10890