Changes in Characteristics of Low-salted Kochujang with Licorice (Glycyrrhiza glabra), Mustard (Brassica juncea), and Chitosan during Fermentation
2010
Lim, S.I., Korea Food Research Institute, Sungnam, Republic of Korea | Song, S.M., Korea Food Research Institute, Sungnam, Republic of Korea
Changes in characteristics of low-salted Kochujang added with mixed additives (licorice 0.8%, mustard 0.7%, chitosan 2%) were investigated during fermentation for 40 days. There was no significant difference in viable and yeast cell counts and color among all treatments, whereas lactic acid bacteria counts of 6.8% and 5.9% salted Kochujang added with the mixed additives (p less than 0.05) were significantly lower than that of control. The phenomenon of abnormal fermentation was observed on surface of low-salted Kochujang but not the low-salted Kochujang added with the mixed additives. The level of amino nitrogen in low-salted Kochujang was close to that of 8.5% salted Kochujang at 20 days of fermentation; however, the amino nitrogen content in 5.9% salted Kochujang added with the additives was 1.6 times higher than in 8.5% salted Kochujang at 40 days. In sensory evaluation, 5.9% salted Kochujang with the additives had the highest score in overall palatability. These results indicate that salt contents of Kochujang could be lowered up to 5.9% by addition of the mixture of licorice, mustard and chitosan, resulting in improvement of palatability and shortening of fermentation time.
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