FOOD SCIENCE ›› 2011, Vol. 32 ›› Issue (19): 125-129.doi: 10.7506/spkx1002-6630-201119028

• Bioengineering • Previous Articles     Next Articles

Screening of Lactic Acid Bacteria with Antioxidant Activity

LIU Tian-yi,PAN Dao-dong*   

  1. (Faculty of Life Science and Biotechnology, Ningbo University, Ningbo 315211, China)
  • Published:2011-10-12

Abstract: In order to achieve lactic acid bacteria with high antioxidant activity, 20 lactic acid bacterial strains were isolated from kimchi juice, goose intestines and chicken crop. Strains L8 and L17 with high antioxidant activity were picked out through preliminary screening based on DPPH and superoxide anion free radical scavenging activity and secondary screening based on total antioxidant capacity (T-AOC) and total superoxide dismutase (T-SOD) activity. Both strains were identified as Lactobacillus casei by carbohydrate fermentation, physiological and biochemical tests and 16S rDNA sequence analysis.

Key words: antioxidant activity, lactic acid bacteria, screening

CLC Number: