Total and thermostable pectinesterases in citrus juices

被引:56
作者
Snir, R
Koehler, PE
Sims, KA
Wicker, L
机构
[1] Dept. of Food Science and Technology, Univ. of Georgia, Athens
关键词
citrus processing; citrus cultivars; quality; thermal stability; pectinesterase;
D O I
10.1111/j.1365-2621.1996.tb14198.x
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Grapefruits, tangerines and several orange cultivars were evaluated for total and thermostable pectinesterase (TS-PE) activity. Juices were extracted with a Fresh'n Squeeze(TM) Multi Fruit Juicer. Variation in total pectinesterase (PE) and TS-PE was not significantly different between cultivars. No significant contribution by traditional quality control parameters (%pulp, degrees Brix, % acid, pH), to total PE or TS-PE was observed. Positive correlations were observed between TS-PE and total PE, when expressed on a pulp (0.669) or soluble solids (0.624) basis.
引用
收藏
页码:379 / 382
页数:4
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