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Background : Korea ginseng root has been traditionally used as a tonic as it is stated to have the capacity to normalize body functions and strengthen systems that are caused by various stresses. But, white ginseng (WG) has lower antioxidant activity than other medicinal crops. Omija (Schisandra chinensis Baillon) has various physiological functionalities such as anti-cancer, anti-inflammatory, and antioxidant activities, which have the effective components of Omija are lignans (schizandrins and gomisins), and this components were contented mostly in seed part on Omija. Physiological characteristics of WG extracts were investigated by adding Omija to enhance functionality.
Methods and Results : WG extract were prepared by adding 0, 20, 40, 60, 80 and 100% of Omija to the weight of WG. Physiological characteristics of WG extracts were investigated DPPH radical scavenging activity, FRAP, and nitrite scavenging activity. As the amount of Omija added increased, DPPH radical scavenging activity of WG extract increased proportionally. IC50 of 10 times water extracts were 0.455, 0.028 and 0.041 ml/ml on WG (100WG), WG added 50% Omija (50OM50WG), and Omija (100OM0WG), respectively. On the other hand, FRAP of extracts decreased slightly with increasing amount of Omija. Nitrite scavenging activity of Omija extract were significantly more active than WG extract, exhibited to 88.89% and 72.65% on WG extract added with 40% Omija (40OM60WG) and non added (100WG), respectively, pH 1.2. and then, to 33.45% and 1.38% with 40OM60WG and 100WG extract, respectively.
Conclusion : From the above results, we may suggest that WG extracts by adding Omija increased the DPPH radical scavenging activity, nitrite scavenging activity and the preference degree on taste.
