Abstract

Abstract The acid‐ and flavor‐forming properties of Lactobacillus plantarum and Leuconostoc mesenteroides isolated from Sikhae, a Korean traditional lactic acid fermented fish product, were examined and compared to those of Lactobacillus casei and Lactococcus lactis subsp. diacetylactis DRC3. The effects of prefermentation of rice flour in solid‐state with Bacillus laevolacticus and Saccharomyces‐cerevisiae, extrusion cooking and addition of soymilk as the substrate of lactic acid fermentation vere tested. Extrusion cooking and prefermentation of rice increased the soluble solid and sugar contents before malt digestion. The amount of sugar consumption during lactic fermentation varied with the type of bacteria. Leuconostoc mesenteroides(sikhae) and Lactobacillus plantarum(sikhae) increased up to 6 times of original cell number by 24 hrs of fermentation in rice + soymilk substrate, but Lactococcus lactis decreased in the same substrates. The final pH of the cereal lactic beverage was in the range of 3.4 ‐ ...

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