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Quality Changes of Nabak Kimchi During Storage with Different Levels of Fermentation  

Lim, Su-Youn (Department of Food and Nutrition, Ewha Womans University)
Lee, Hye-Ran (Department of Food and Nutrition, Ewha Womans University)
Lee, Jong-Mee (Department of Food and Nutrition, Ewha Womans University)
Publication Information
Journal of the Korean Society of Food Culture / v.20, no.4, 2005 , pp. 468-475 More about this Journal
Abstract
To determine the effect of different fermentation level on the quality of Nabak Kimchi during storage, this study was carried by analysing the result of physico-chemical properties, microbiological characteristics and sensory evaluation of Nabak Kimchi stored up to 24 days. For the physico-chemical properties, pH, total acidity, reducing sugar, carbon dioxide contents, color values were investigated while for the microbiological characteristics, total microbial counts and lactic acid bacteria were studied. Nabak Kimchi products were fermented at six different level of temperature and time and stored in Kimchi refrigerator at $4^{\circ}C$ for 24 days. As the storage period increased, the pH values of LF15, SF25 and LF25 decreased rapidly after initial fermentation and the pH values of SF4, LF4 and SF15 increased slightly in the beginning and then decreased. total acidity increased as storage period proceeded. the amount of reducing sugar was 4.92mg/ml before fermentation and increased significantly and reached its maximum values then decreased. lightness and redness of Nabak Kimchi decreased as storage period became longer, but yellow of Nabak Kimchi increased during storage. Total microbial counts of SF25 and LF25 reached to the highest at the 6th day and total microbial counts of LF15 reached to the highest at the 12th day and then significantly decreased. However, total microbial counts of SF4, LF4 and SF15 continuously increased up to the 24th day. The number of lactic acid bacteria was similar to the phase of the change of total microbial counts.
Keywords
Nabak Kimchi; carbon dioxide contents;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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