期刊
INTERNATIONAL JOURNAL OF DAIRY TECHNOLOGY
卷 61, 期 2, 页码 170-177出版社
BLACKWELL PUBLISHING
DOI: 10.1111/j.1471-0307.2008.00385.x
关键词
acidification process; frozen yogurt; quality; SNF fortifiers; stabilizers; texture
In our study, two acidification procedures, three stabilizers (guar gum, xanthan and carboxymethylcellulose) and two protein-fortifying agents (skim milk powder and whey powder) were evaluated based on their impact on the quality characteristics of frozen yogurts. Indirect acidification (blending of plain acidified milk with ice cream mix) was found to favour texture while direct acidification (fermentation of ice cream mix with starter culture), although it improved viscosity of mixes, did not enhance the sensory acceptance of frozen yogurts. The addition of 0.2% xanthan gum and the partial substitution (at the ratio of 3 : 1) of skim milk powder by whey powder increased overall acceptance and creaminess.
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