Jin Woo Nho, In Guk Hwang, Hyun Young Kim, Youn Ri Lee, Koan Sik Woo, Bang Yeon Hwang, Seong Jun Chang, Junsoo Lee, Heon Sang Jeong
Abstract
The objectives of this study were to evaluate the antioxidant activity, angiotensin I-converting enzyme (ACE) inhibitory activity, and anticancer activity of ramie (Boehmeria nivea) leaves (RL). The RL was extracted with 70%(v/v) ethanol (RLE) and fractionated with the solvents of hexane, chloroform, ethylacetate, and aqueous. The ethylacetate fraction (EF) contained the highest phenolic contents of 651.65 mg/g, followed by RLE of 148.72 mg/g. The EF showed strong 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, superoxide radical scavenging activity, and hydroxyl radical scavenging with a 50% inhibition concentration (IC50) of 0.097, 0.129, and 0.191 mg/mL, respectively. The ACE-inhibitory activity of EF was 80.32% at a concentration of 0.1 mg/mL. The EF showed growth-inhibitory effect of 67.21% at 0.25 mg/mL on the LoVo cell line, and 56.08% at 0.25 mg/mL on the NCI-H460 cell line, respectively. Therefore, it was suggested that the RL were potential materials for use as functional food and medicine.
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- anticancer activity
