Kinetics of ascorbic acid degradation in green asparagus during heat processing

被引:18
作者
Esteve, MJ [1 ]
Frigola, A [1 ]
Martorell, L [1 ]
Rodrigo, C [1 ]
机构
[1] Univ Valencia, Fac Farm, Dept Med Prevent & Salud Publ Bromatol Toxicol &, E-46100 Burjassot, Valencia, Spain
关键词
D O I
10.4315/0362-028X-61.11.1518
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
The effect of heating on ascorbic acid in green asparagus during a simulated retort operation was investigated. The asparagus was heated in trays of ethylene-vinyl alcohol copolymer for selected time intervals at four temperatures ranging from 110 to 125 degrees C. It was found that the rate of degradation followed first-order kinetics. Kinetic parameters were obtained by using two least squares methods. The activation energy and z value were 35 kcal/mol and 20 degrees C, respectively.
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收藏
页码:1518 / 1521
页数:4
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