Effects of Traditional Salt on the Quality Characteristics and Growth of Microorganisms from Kimchi

자염(煮鹽)으로 담근 배추김치의 발효숙성 중 이화학적.관능적 특성 및 자염이 김치발효 미생물의 생육에 미치는 영향

  • Kim, Hye-Ran (Department of Food & Nutrition, Chungnam National University) ;
  • Kim, Mee-Ree (Department of Food & Nutrition, Chungnam National University)
  • 김혜란 (충남대학교 식품영양학과) ;
  • 김미리 (충남대학교 식품영양학과)
  • Published : 2010.02.28


This study was carried out to investigate the effects of various kinds of commercial salts, including sun-dried (Korea), purified, and traditional salts on the chemical and sensory properties and growth of microorganisms involved in kimchi fermentation. Kimchi was prepared by salting in 10% NaCl solution for 2 hours followed by addition of other spices and fermentation at $20^{\circ}C$. The decreases in pH suggested that kimchi fermentation can be classified into 3 steps: initial, intermediate, and final stages. In texture analysis, the hardness and fracturability of traditional salt kimchi were higher than those of regular kimchi. From the sensory evaluation test for kimchi, sensory scores were high for traditional salt addition, especially taste, overall preference and texture. Among various microorganisms related to kimchi fermentation, the growth of Leuconostoc mesenteroides, Lactobacillus plantarum, Pichia membranaefaciens and Escherichia coli were examined. Based on the conditions of kimchi fermentation, a 2% and 5% concentration of each salt were studied. Also, the conditions of the cultures at $37^{\circ}C$ were examined. There was no considerable difference in the growth of Leuconostoc mesenteroides, Lactobacillus plantarum, Escherichia coli in the different kinds of salts. However, the growth of Pichia membranaefaciens was strongly inhibited by a 5% concentration of traditional salt during incubation at $37^{\circ}C$.


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