지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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To show the anti-oxidation effects of Phragmitis rhizoma extract, this study investigated the composition ratio of its components, the content of the anti-oxidative materials polyphenol and flavonoid, and the DPPH scavenging effect and SOD activity to measure antioxidative activity. It was shown that P. rhizoma is composed of the following: 77.88% natural fiber, 9.15% moisture, 6.62% protein,5.95% minerals ash, and 0.40% natural fat. The content of polyphenol in the hot water extract was 4.59?1.60 mg/g and 10.13?1.81 mg/g in the ethanol extract, and that of flavonoid in the hot water extract was 26.76?0.55 mg/g and 28.65?1.45 mg/g in the ethanol extract.
Therefore, in P. rhizoma extract, the content of flavonoid was higher than that of polyphenol and that of the anti-oxidative matter in the ethanol extract was higher than that in the hot water extract. The DPPH scavenging effect of P. rhizoma ethanol extract was 75.17?0.68% at 10.0 mg/ml while that of hot water extract was 52.33±0.48% at the same concentration, which indicates that of the ethanol extract was higher than that of the hot water extract. It was discovered that the content of SC50 in the hot water extract was 0.939 mg/ml,0.497 mg/ml for the ethanol extract, and contained 0.062 mg/ml of ascorbic acid. This indicates that the P. rhizoma ethanol extract has a higher anti-oxidation activity than other natural materials although it has slightly lower activity than ascorbic acid. With respect to the SOD-like activity of P. rhizoma, the ethanol extract was 27.32?1.44% in 10.0 mg/ml and the hot water extract was 18.84?1.78%, which means that the SOD-like activity of the ethanol extract of P. rhizoma was also higher. As a result of this study, it was discovered that the anti-oxidative activity of the ethanol extract was higher than that of the hot water extract, and the degree of its anti-oxidation is relatively high. Therefore, it is suggested that P. rhizoma extract has high value as a material for functional cosmetics.
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