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http://dx.doi.org/10.3746/jkfn.2003.32.2.167

Physicochemical and Sensory Properties of Turnip Dongchimi during Fermentation  

오상희 (충남대학교 식품영양학과)
윤영미 (충남대학교 식품영양학과)
이선경 (충남대학교 식품영양학과)
성진희 (충남대학교 식품영양학과)
김미리 (충남대학교 식품영양학과)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.32, no.2, 2003 , pp. 167-174 More about this Journal
Abstract
Physicochemical and sensory properties of turnip dongchimi were examined during fermentation at $0^{\circ}C$. Salt concentrations of dongchimi liquid were around 1.3% during fermentation. Greater decrease in pH and reducing sugar content in solid, and higher increase of acidity, turbidity and reducing sugar content in liquid were observed during fermentation. The acidity and pH at the optimal fermentation time, at the day 40 was observed 0.36% and pH 3.9, respectively Lactobacilli number, turbidity, anthocyanin content, the Hunter color L and a values were the greatest at the day 40 and then gradually decreased. The hardness and fracturability of turnip, determined by texture analyser, decreased during fermentation, while springiness increased. Sensory evaluation showed that the scores of color of purple, sweet taste, savory taste, and over-all preference of dongchimi were highest at the day 40. Score of overall preference of turnip dongchimi was the highest with 6.5 at the 40th day of fermentation, the optimum fermentation time, but the score until the day 60 was not significantly decreased.
Keywords
turnip dongchimi; physicochemical property; sensory properties;
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