Antioxidative and Inhibitory Activities of Extract and Juice Powder from Hippophae rhamnoides L. against Nitric Oxide and Elastase Production
2018
Park, J.H., Institute of Samsung Herb Medicine, Chuncheon, Republic of Korea | Lee, C.O., Kangwon National University, Chuncheon, Republic of Korea | Yoo, J.H., Kangwon National University, Chuncheon, Republic of Korea | Nguyen Thi Lan An, Kangwon National University, Chuncheon, Republic of Korea | Yoo, N.H., Kangwon National University, Chuncheon, Republic of Korea | Kim, M.J., Kangwon National University, Chuncheon, Republic of Korea
Background: The flowering plant Hippophae rhamnoides L. has been used for many studies on fruit or leaf extracts. This study was conducted to investigate the development of a new cosmetic material from H. rhamnoides fruits and leaves that have by antioxidant, anti-inflammatory and wrinkle improvement activities. Methods and Results: The antioxidant abilities of H. rhamnoides extracts, including of a water-soluble fruit powder (FW), a fatsoluble fruit powder (FF), a supercritical extract of fruit by-product (BS), and a mixture of leaf and fruit (MIX), were investigated in vitro. A DPPH radical assay for antioxidant activity was performed for these fractions alongside assay to evaluate the total phenolic and flavonoid content (TPC and TFC). As expected, the MIX had the highest DPPH radical scavenging activity (RC50 = 10.27μg/ml), and the TPC and TFC also were highest in MIX (225.7 ㎎ㆍGAE/g, and 25.18 ㎎ㆍQE/g, respectively). Nitric oxide (NO) production in LPS-induced RAW264.7 cells was estimated and the results indicated an over 75% decrease of NO production in FF and MIX. In other assays, the highest elastase inhibitory activity was found in FW. Conclusions: These results revealed that H. rhamnoides extracts have a high potential for antioxidant, anti-inflammatory and antiwrinkle activities. H. rhamnoides products are suggested to be applied as the functional materials of cosmetic ingredients.
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