期刊
FOOD RESEARCH INTERNATIONAL
卷 41, 期 7, 页码 765-772出版社
ELSEVIER
DOI: 10.1016/j.foodres.2008.06.001
关键词
meat batter; soy protein; thermal treatment; Raman spectroscopy; texture
资金
- CARNISENUSA [CSD2007-00016]
- Ministerio de Ciencia y Tecnologia [AGL04-6773]
- Juan de la Cierva program
This article reports an assessment of the potential of Raman spectroscopy for determination of structural changes in meat batter with and without soy protein isolate (SPI) upon heating. It also reports proximate composition, water binding and texture analyses. Various meat batters were made up for this purpose: a control meat batter and meat batters with 3% and 6% SPI with and without thermal treatment (70 degrees C/30 min). Results showed an increase (P < 0.05) in penetration force, hardness and chewiness upon heating. In heated samples, increases (P < 0.05) in hardness and chewiness were observed as a result of SPI addition. just in heated meat batter with added SPI, Raman spectroscopy analysis revealed decrease (P < 0.05) in alpha-helix accompanied by an increase (P < 0.05) in beta-sheet structures after heating. Significant correlations were found between these secondary structural changes in meat proteins and water binding and textural properties of the meat batters. (C) 2008 Elsevier Ltd. All rights reserved.
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