期刊
JOURNAL OF FOOD ENGINEERING
卷 78, 期 2, 页码 730-734出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jfoodeng.2005.10.007
关键词
whey proteins; starch; sorption models
The similarity between the Peleg, Pilosof-Boquet-Batholomai and Singh-Kulshrestha models was investigated using the hydration behaviours of whey protein concentrate, wheat starch and whey protein isolate at 30 degrees C in 100% relative humidity. The three models were shown to be mathematically the same within experimental variations, and they yielded parameters that are related. The models, in their linear and original forms, were suitable (r(2) > 0.98) in describing the sorption behaviours of the samples, and are sensitive to the length of the sorption segment used in the computation. The whey proteins absorbed more moisture than the wheat starch, and the isolate exhibited a higher sorptive ability than the concentrate. (c) 2005 Elsevier Ltd. All rights reserved.
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