期刊
JOURNAL OF FOOD ENGINEERING
卷 87, 期 1, 页码 34-39出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jfoodeng.2007.03.014
关键词
spray drying; enzyme activity; protein; trehalose; particle morphology
The retention of the enzymatic activity of alcohol dehydrogenase (ADH) on spray drying was examined under various drying conditions. Trehalose was used in the formulation of feed stocks for the spray drying. The retention of ADH activity was dependent on the concentration of ADH in the feed solution. The addition of other proteins, such as bovine serum albumin and P-lactoglobulin, exhibited an additional improvement of the retention of ADH activity. The inlet and outlet temperature of the drying air was another key factor for the enzyme activity on the spray drying. The surface morphology of the spray-dried particle was changed drastically with the addition of proteins. (C) 2007 Elsevier Ltd. All rights reserved.
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