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Changes of Characteristics in Kochujang Fermented with Maesil (Prunus mume) Powder or Concentrate  

Park, Woo-Po (Division of Food Science, Masan College)
Cho, Sung-Hwan (Department of Food Science and Technology & Institute of Agriculture and Life Science, Gyeongsang National University)
Lee, Seung-Chul (Division of Food Science and Biotechnology, Kyungnam University)
Kim, Sung-Yong (Department of Agricultural Economics, Gyeongsang National University)
Publication Information
Food Science and Preservation / v.14, no.4, 2007 , pp. 378-384 More about this Journal
Abstract
Powder, or a concentrate, of maesil (Prunus mume) were used in the making of kochujang, and were added to kochujang at 0.5 or 1.0% (w/w). Kochujang fermented with maesil powder lower moisture content than did samples fermented with maesil concentrate. Moisture content slowly increased during fermentation, and was $3{\sim}4%$ higher than the initial value after 8 weeks of fermentation. Kochujang fermented with maesil powder or maesil concentrate showed lower pH values and higher total acidities than did the control. The total microbial count was $3.6{\times}10^7\;5.4{\times}10^7\;cfu/g$, and yeast and mold levels were $2.0{\times}10^7{\sim}3.6{\times}10^7\;cfu/g$, as kochujang fermentation commenced. Microbial load reached a maximum by 4 weeks of fermentation, and decreased thereafter. L (lightness), a (redness) and b (yellowness) values of kochujang gradually decreased during fermentation. Compared to methanol extracts of kochujang, water extracts and ethanol extracts showed higher free radical scavenging abilities at the initial stage of fermentation. Control, and samples with 0.5% (w/w) maesil powder or maesil concentrate, attained higher scores in sensory evaluation tests than did samples with higher maesil levels, and were not significantly different at P>0.05 as determined by Duncan's multiple range test.
Keywords
kochujang; Prunus mume; powder; concentrate;
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Times Cited By KSCI : 6  (Citation Analysis)
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