Abstract:
37 lactic acid bacterial strains were isolated from different fermentation stage of pickled ginger,pepper,garlic salt water,strain SJ14 with strong antioxidant activity was picked out.The scavenging ability of 1,1- Diphenyl-2- picrylhydrazyl radical( DPPH·) and superoxide anion radical( O-2·) by living cells and cell- free extracts of strain SJ14 were 67.23%,35.22% and 37.83%,25.66%.Identification by morphology of colony and cell,physiological and biochemical tests and molecular genetics that strain SJ14 was Weissella cibaria.Compared with Lactobacillus plantarum N2 and Leuconostoc mesenteroides 8m- 9,Weissella cibaria SJ14 had prominent ability of acid production,salt resistance and nitrite degradation,and there were not antagonism among SJ14,N2,8m- 9. The results provided the data reference for pickles of strains synergism fermention.