Sasa species leaves have been used in traditional medicine for their anti-inflammatory, antipyretic, and diuretic properties. Sasa quelpaertensis Nakai is a small bamboo grass that grows only on Mt. Halla on Jeju Island, Republic of Korea. This small bamboo grass has recently been the focus of much attention due to its potential biomass as well as its beneficial health effects. In this study, to promote the efficient utilization of the S. quelpaertensis leaf, we established a simple preparation method for phytochemical-rich extract (PRE) by comparing phytochemical contents and biological activities according to extraction methods. high performance liquid chromatography (HPLC) analysis revealed that the contents of two major phytochemicals such as, tricin (5.35 mg/g) and p-coumaric acid (44.10 mg/g) contained in PRE were higher than those in fresh hot water extract (SQH, p-coumaric 23.39 mg/g, tricin 0.18 mg/g) and ethanol extract (SQE, p-coumaric 10.8 mg/g, tricin 0.38 mg/g). The antioxidant activities [1,1-diphenyl-2-picrylhydrazy (DPPH) radical scavenging activity, 2,2'-azino-bis-3-ethylbenzothiazoline-6-sulphonic acid (ABTS) radical scavenging activity, nitric oxide (NO) scavenging activity, and xanthine oxidase inhibitory activity] of PRE were higher than those of SQH and SQE. PRE effectively inhibited NO production in LSP-stimulation RAW 264.7 cells, and the growth of human promyelocytic leukemia (HL-60) cells. These results suggest that PRE has a potential as a promising antioxidant and anti-inflammatory agent. 조릿대 속 식물에서 분리된 식물화합물들은 flavonoid 류, lignan 류, terpene 류, phenylpropanoid 류, alkene 류, organic acid 류 등이 보고되었다 [6,12,16,18,24,25]. 본 연구에서는 제주조릿대에서 보고된 p-coumaric acid와 tricin을 지표물질
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