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pp.735-743
This study was conducted to analyze the polyphenol contents and antioxidant activities of small-black-bean- Chungkukjang-added black food (SBCB) and soybean Chungkukjang (SC) extracts for the development of functional materials. The yields of the hot-water-and-ethanol SC extracts were higher than those of the hot-water-only SC extracts, which were higher than those of the ethanol-only SC extracts. The total phenol contents of the hot-water-and-ethanol SBCB extracts were higher than those of the other extracts. The EDA values of the hot-water-and-ethanol SBCB extracts were higher in the 0.625~5.0 mL/mL extract concentration than those of the other extracts, and those of the SC extracts were high in the 10 mg/mL extract concentration. The SOD-like activities of the hot-water- and ethanol-only SC extracts were higher than those of the other extracts. The nitrite scavenging ability of the ethanol-only SC extracts was higher at pH 1.2 than that of the hot-water-only SC extracts. The xanthine oxidase inhibitory activities of the hot-water- and ethanol-only SBCB extracts were higher in the 0.625 mL/mL extract concentration than those of the other extracts, and increased along with the extract concentration. The inhibitory activities of tyrosinase also increased along with the extract concentration, and the reducing power increased along with the extract concentration and was high in the hot-water-only SBCB and SC extracts.
