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Abstract ▼ AI-Helper

This study was conducted to investigate the preservative effects of low molecular weight chitosan with and without other preservatives on kimchi at $10^{\circ}C$ during 12 days of fermentation. The pH and titratable acidity of kimchi with preservatives (PSV) were higher and lower, respect...

This study was conducted to investigate the preservative effects of low molecular weight chitosan with and without other preservatives on kimchi at $10^{\circ}C$ during 12 days of fermentation. The pH and titratable acidity of kimchi with preservatives (PSV) were higher and lower, respectively, than those of control kimchi (CON). The decrease in reducing sugar content was more remarkable in CON than in PSV as the fermentation proceeded. Contents of lactic acid and acetic acid were lower in PSV, especially in kimchi with chitosan dissolved in acetic acid (CH-B) and in the one containing both chitosan and Na-benzoate (CHS) than those in CON. The numbers of total viable cells, Leuconostoc sp. and Lactobacillus plantarum were higher in CON than those in PSV. Sensory firmness and green flavor were significantly lower in CON than in CH-B and CHS. Sourness and staled flavor of CH-B and CHS tended to be lower than those of other kimchi samples.

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