Evaluation of physicochemical propert ies and biological activities of steamed and fermented Deodeok (Codonopsis lanceolata)

초록

This study was designed to evaluate the physicochemical properties and biological activities of steamed and fermented Codonopsis lanceolata . The treatments included NS-NF (non-steamed and non-fermented), NS-LF (non-steamed and L. rhamnosus fermented), S-NF (steamed and non-fermented), and S-LF (steamed and L. rhamnosus fermented). Total polyphenol amounts of S-NF and S-LF were significantly increased to more than 26 mg GAE/g. The highest DPPH scavenging activities were observed for S-NF and S-LF, showing EC 50 values of 0.8 and 0.6 mg/mL, respectively. The growths of Staphylococcus aureus , Listeria monocytogenes, Salmonella Typhimurium, and Shigella boydii were effectively inhibited by S-LF (MIC<9 mg/mL). The NS-LF and S-LF (EC 50 <6 mg/mL) effectively inhibited a-Glucosidase and tyrosinase activities compared to NS-NF (EC 50 <17 mg/mL). The S-LF exhibited the highest acetylcholinesterase (AChE) inhibitory activity (IC 50 <32 mg/mL). Therefore, the results suggest that the application of the steaming process combined with probiotic fermentation can effectively enhance the biological and pharmacological activities in C. lanceolata. © The Korean Society of Food Science and Technology.

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