Fig. 1.

Ferric reducing antioxidant power (FRAP) values of mixed culture and commercial doenjang extracts. Sample extracts were prepared by extracting freeze-dried doenjang samples with 10 volumes of 80% (v/v) ethanol, removing solvent by rotary evaporation and nitrogen flushing, and then redissolving the extract in the solvent at the concentration of 10 mg/mL. Significantly different from each other by Student’s t-test at **P<0.01.