Journal
LWT-FOOD SCIENCE AND TECHNOLOGY
Volume 47, Issue 2, Pages 261-266Publisher
ELSEVIER
DOI: 10.1016/j.lwt.2012.01.016
Keywords
Autolytic activity; Bambara groundnut; Surimi; Threadfin bream; Gel; Inhibitor
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Funding
- Prince of Songkla University
- TRF
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Impact of bambara groundnut protein isolate (BGPI) on autolysis and gel properties of surimi from threadfin bream (Nemipterus bleekeri) was investigated. BGPI with trypsin inhibitory activity of 6356.3 +/- 6.02 unit/g markedly increased (P < 0.05) the breaking force and deformation of modori gel as the levels used (0-3 g/100 g) increased. Nevertheless, only 0.25 g/100 g BGPI increased breaking force and deformation of kamaboko gel and increasing BGPI levels showed detrimental effect on gelation. Myosin heavy chain (MHC) was more retained when BGPI concentration increased, especially in modori gel. However, whiteness slightly decreased (P < 0.05) with increasing BGPI levels. Microstructure of kamaboko gel added with 0.25 g/100 g BGPI had finer and more ordered fibrillar structure than that without BGPI addition. Therefore, BGPI at an appropriate level could be an alternative food-grade inhibitor to improve gel properties of surimi. (C) 2012 Elsevier Ltd. All rights reserved.
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