期刊
FOOD HYDROCOLLOIDS
卷 43, 期 -, 页码 125-131出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodhyd.2014.05.008
关键词
Konjac glucomannan; Deacetylation; Surimi; High temperature; Gelation property
资金
- Special Funds for Scientific Research on Public Causes [201305013]
- National Natural Science Funds [31371791]
- special funds for Taishan Scholars construction project
- Program for Changjiang Scholars and Innovative Research Team in University
Konjac glucomannan (KGM) with different degrees of deacetylation (DDs) were added to Alaska Pollock surimi. The surimi samples were subjected to a high-temperature (120 degrees C) treatment, and the gelation properties of the surimi gels were investigated. The deformation and breaking forces increased with increasing DD; the gel strength showed the same trend. Deacetylation weakened the water-holding capacity, but improved the whiteness of the surimi gels. The storage modulus (G') of the surimi gels was tested; it was found that G' increased as the DD increased. The DSC results indicated that the DD might facilitate the KGM reaction with actin and improve the hydrophobic interactions with proteins. The SEM images showed that deacetylation resulted in denser and more uniform microstructures of the surimi gels. (C) 2014 Elsevier Ltd. All rights reserved.
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