Effects of deep-fat frying process on the oil quality during French fries preparation

被引：32
|
作者：
Sayyad, Ruhollah [1 ]
机构：
[1] Univ Khazar, Dept Food Sci & Technol, Mahmudabad, Mazandaran, Iran
来源：
JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE | 2017年 / 54卷 / 08期
关键词：
Sunflower oil; Deep-fat frying; Frying stability; Tocopherol isomeric; Linoleic acid; CANOLA OILS; OLIVE OIL; STABILITY; TOCOPHEROLS; PERFORMANCE; DEGRADATION; WATER; TIME;
D O I：
10.1007/s13197-017-2657-x
中图分类号：
TS2 [食品工业];
学科分类号：
0832 ;
摘要：
The performance of the sunflower oil in deep-fat frying was assessed by evaluating the efficacy of linoleic acid level and composition of tocopherol isomeric on its frying stability. The oil was used as a frying media to fry potato strips for 6 h daily for 7 days. Standard procedures for the measurement of used frying oil degradation such as fatty acid composition, acid value, anisidine value, conjugated diene value, total polar compounds and tocopherol concentration were used. At analogous composition of tocopherol isomers, the high oleic sunflower oil with smaller value of linoleic acid content indicated higher frying stability than the oil with higher linoleic acid level. This, indicating that the high oleic sunflower oil frying efficiency was depended mainly with the oil linoleic acid content and the composition of tocopherol isomers showed no significant effect. Also, the alpha-tocopherol degradation was lower compared to the corresponding degradation of gamma-tocopherol.
引用
收藏
页码：2224 / 2229
页数：6
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