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Fermentation Characteristics of Kimchi Treated with Different Methods of Green Tea Water Extracts  

Kim, Mee-Kyung (Department of Hotel Culinary Arts, Moonkyung College)
Kim, Soon-Dong (Faculty of Food Science and Industrial Technology, Catholic University)
Publication Information
Food Science and Preservation / v.10, no.3, 2003 , pp. 354-359 More about this Journal
Abstract
This study was conducted to investigate the fermentation characteristics of kimchi treated with different methods of water extracts of powdered green tea(GT). Four different kimchis, the SB-kimchi(control) which was not treatment of the extracts, SG-kimchi prepared with Chinese cabbage(CC) salted in 1% GT containing 10% brine, DG-kimchi prepared with CC dipped in 1% GT for 30 min after salting, MS-kimchi prepared with the salted CC mixed with 1% GT containing seasonings. All kimchis was fermented at 10$^{\circ}C$. The pH of treated-kimchis were maintained higher than those of control products during fermentation, but it showed no big difference between each treated groups. Total microbe of SB-kimchi(6.27-9.37 cfu/mL) was higher than those of GT-treated kimchi(5.17-9.20) during fermentation. The ratio of lactic acid bacteria against total microbe was higher than the treated kimchis. Total polyphenol content of kimchi was 52.75 mg% in DG-kimchi, 47.71 mg% in MS-kimchi, 44.89 mg% in SG-kimchi, 30.70 mg% in SB-kimchi on the 5th days of fermentation. Scores of crispy taste of SG- and DG-kimchi on the 5th days of fermentation was 4.03 and 4.01 points, respectively which was higher than control products. Scores of fishy and hot taste of GT-treated kimchi were lower than those of control products during all fermentation periods.
Keywords
kimchi; green tea; fermentation;
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