Improving gel properties of hairtail surimi by electron irradiation

Hairtail surimi was subjected to electron irradiation for doses up to 9kGy. At 7kGy highest gel strength was achieved. The irradiation also increased lightness and expressible water amount. Scanning electron micrographs showed that 7kGy irradiation made the surimi protein gel network more compact. S...

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Bibliographic Details
Published in:Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 2015-05, Vol.110, p.1-5
Main Authors: Lin, Xianping, Yang, Wenge, Xu, Dalun, Jie, Zhen, Liu, Wen
Format: Article
Language:English
Subjects:
Chains
Electron irradiation
Electron micrographs
Gel strength
Hairtail surimi
Irradiation
Radiation processing
Scanning
Sodium
Surimi
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Summary:Hairtail surimi was subjected to electron irradiation for doses up to 9kGy. At 7kGy highest gel strength was achieved. The irradiation also increased lightness and expressible water amount. Scanning electron micrographs showed that 7kGy irradiation made the surimi protein gel network more compact. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) revealed the degradation of myosin heavy chain (MHC) as the irradiation dose increased, particularly at the 7 and 9kGy doses. Radiation processing may become a new effective tool in surimi production. •The effect of electron irradiation on surimi was investigated.•Gelling properties of surimi gel were improved by 7kGy electron irradiation.•7kGy electron irradiation caused degradation of myosin heavy chain.•Radiation processing can be a new tool for improving surimi products quality.
ISSN:0969-806X
1879-0895
DOI:10.1016/j.radphyschem.2014.12.017