Dextransucrase Activity of Leuconostoc sp. Strains Isolated from Kimchi

김치에서 분리한 Leuconostoc 속 균주들이 생산하는 Dextransucrase의 활성

  • Hahn, Young-Sook (Department of Food and Nutrition, Sungshin Women's University) ;
  • Oh, Ji-Young (Department of Food and Nutrition, Sungshin Women's University)
  • 한영숙 (성신여자대학교 식품영양학과) ;
  • 오지영 (성신여자대학교 식품영양학과)
  • Published : 1999.02.01

Abstract

The liquid of ripened Kimchi was spread on phenylethylalcohol sucrose medium and incubated at 20$^{\circ}C$ for 2 days in order to isolate Leuconostoc sp. strains. Twenty isolated colonies were identified as Leuconostoc sp. strains from sugar fermentation test. Dextransucrase activities of the isolated strains were determined and the strain J-2 showed highest activity. The morphological, cultural and physiological studies on these 5 strains showed that gram(+), spores(-), motility(-) and produced gas from glucose, acid in Whittenbury C. Only Y-1 strain produced ammonia from arginine.

Keywords

dextransucrase;Leuconostoc sp.;Kimchi