DEGRADATION KINETICS OF ANTHOCYANINS IN SOUR CHERRY JUICE AND CONCENTRATE

被引:156
作者
CEMEROGLU, B
VELIOGLU, S
ISIK, S
机构
[1] Dept. of Food Science & Technology, Faculty of Agriculture, Univ. of Ankara, Ankara, 06110, Diskapi
关键词
DEGRADATION; KINETICS; ANTHOCYANIN; SOUR CHERRY;
D O I
10.1111/j.1365-2621.1994.tb14680.x
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
The effects of temperature and soluble solids on degradation of anthocyanins in sour cherry concentrate were determined over temperature ranges (-18 to 37)degrees C and 50 to 80 degrees C. Anthocyanin degradation could be modeled as a first-order rate reaction, with rates of 33.97 X 10(-3).hr(-1) (15 degrees Brix), 59.19 X 10(-3).hr(-1) (45 degrees Brix) and 97.14 X 10(-3).hr(-1) (71 degrees Brix) at 80 degrees C. Temperature dependence of reaction was described by the Arrhenius relationship. Activation energy for a solids content of 15-71 degrees Brix ranged from 16.37-19.14 kcal.mole(-1) with an average of 17.45 kcal.mole(-1).
引用
收藏
页码:1216 / 1218
页数:3
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