Abstract
In this study, we compared the changes in the quality of kimchi fermented with a complex starter and a single starter. Lactic acid bacteria strains isolated from kimchi were used as starters, and fermention was performed at 10°C for 26 days. The rate of reduction in lactic acid bacteria was low, the initial pH was maintained at a constant level, and the dominance rate of the starter was high at 83% on the 15th day of fermentation with the complex starter, compared to fermentation with the control and single starters. Regarding the CO2 and free sugar content, which are factors affecting product quality and are influenced by lactic acid bacteria fermentation, 1.4 and 1.5 times higher CO2 and mannitol production, respectively, were observed during fermentation of free sugars with the complex starter than in fermentation with the single starter. These results show that the use of a complex starter can improve the distribution quality of kimchi as it results in an extended shelf life and enhanced sensory quality.
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