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Physico-chemical and Microbiological Characteristics of Kimchi

GAN Yi, LI Hong-jun, FU Yang, HE Zhi-fei   

  1. Chongqing Special Food Engineering and Technology Research Center, College of Food Science,Southwest University, Chongqing 400715, China
  • Online:2014-10-15 Published:2014-10-17

Abstract:

This study was done with the aim to explore the differences in quality characteristics among 6 commercial
samples of kimchi. Physico-chemical and microbiological indices of kimchi were detected by national standard methods.
The results showed that there was no significant difference in moisture content or pH (P > 0.05), yet a significant
difference in salt content and total acidity was observed among different kimchi samples (P < 0.05). The number of lactic
acid bacteria of kimchi fermented for about 15 days was less than that fermented for about 23 days (P < 0.05), while the
number of aerobic bacteria and yeast of kimchi fermented for about 15 days was more than that fermented for about 23 days
(P < 0.05). The number of coliforms in all kimchi products was less than 3 MNP/g. There were significant differences in
quality characteristics among these kimchi products, but all samples complied with the quality standards for import.

Key words: kimchi, physico-chemical characteristics, microorganism

CLC Number: