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Physicochemical Characteristics of Onion Kimchi Prepared with Jeot-kal and Chitosan  

박복희 (목포대학교 생활과학부 식품영양학전공)
조희숙 (목포대학교 생활과학부 식품영양학전)
오봉윤 (목포대학교 생활과학부 식품영양학전공)
Publication Information
Korean journal of food and cookery science / v.20, no.4, 2004 , pp. 358-364 More about this Journal
Abstract
This study was conducted to examine the effects of Jeot-kal and chitosan on the physicochemical characteristics and hardness during onion Kimchi fermentation. The onion Kimchi was stored at 4${\pm}$1$^{\circ}C$ for 42 days. The study results were as follows. The pH of control onion Kimchi and the experimental groups was in the range 5.30∼5.80. The pH of the experimental groups slowly decreased during the fermentation. The total acidity of the four kinds of onion Kimchi was increased. The reducing sugar content was maximized at 4 days of fermentation after which it decreased gradually as the fermentation processed. The ascorbic acid content of control onion Kimchi and the experimental groups was increased rapidly at 21 days and then decreased. The hardness of onion Kimchi measured instrumentally was higher in onion Kimchi treated with the salt-fermented Toha jeot juice than in control onion Kimchi.
Keywords
Onion Kimchi; salt-fermented Toha jeot juice; chitosan; physicochemical characteristics; hardness;
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