期刊
FOOD CHEMISTRY
卷 106, 期 1, 页码 172-179出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2007.05.063
关键词
cashew apple juice; non-enzymatic browning; thermal treatment; optimization
The effect of thermal treatment on clarified cashew apple juice was studied at temperatures from 88 to 121 degrees C. Changes in colour measured with colorimetric parameters (reflectance spectra. colour difference and CIELAB), and the variation in ascorbic acid, 5-hydroxymethvlfurfural (5-HMF) and sugar content were used to evaluate non-enzymatic browning. Kinetic models were applied to the changes in reflectance spectra, ascorbic acid and 5-HMF. The effect of temperature on kinetic constants was described by an Arrhenius type equation. The sugar content remained constant during thermal treatment and did not affect non-enzymatic browning, which was mainly affected by degradation of ascorbic acid. The kinetic models were used to optimise and control the thermal treatment for clarified cashew apple juice. (c) 2007 Elsevier Ltd. All rights reserved.
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