Earticle

초록

영어

Bioassay-guided investigation of the stem of Cleyera japonica Thunb. led to the isolation of five compounds such as 3,5,7-trihydroxylchromone 3-O-α-L-rhamnopyranoside (1), aviculin (2), 3,3'-di-O-methylellagic acid (3), 3,3'-di-O-methylellagic acid 4'-O-β-D-xylopyranoside (4) and betulinic acid (5). Their structures were elucidated on the basis of spectral studies as well as by comparison of their data with literature values. In order to study the skin related bioactivities for the isolated compounds, screenings on anti-oxidation, anti-tyrosinase and anti-elastase were conducted. For the anti-oxidation tests, compound 1, 2 and 3 showed strong DPPH radical scavenging activities with SC50 of 59.3, 58.1 and 123.3 μg/mL respectively, whose activities were comparable to a positive control BHT (SC50 89.0 μg/mL). On the tyrosinase inhibition studies, compound 4 (IC50 36.3 μg/mL) showed more potent activity than arbutin (IC50 67.2 μg/mL). On the elastase inhibition studies, compound 5 (IC50 17.9 μg/mL) showed higher activity than oleanolic acid (IC50 29.6 μg/mL), a positive control. Based on these results, C. japonica stem extracts could be potentially applicable as an ingredient in skin care formulations.

키워드

저자

• Jung Eun KIM [ Department of Chemistry, Cheju National University, Jeju 690-756, Korea. ]
• Duk Sang JUNG [ Department of Chemistry, Cheju National University, Jeju 690-756, Korea. ]
• Nam Ho LEE [ Department of Chemistry, Cheju National University, Jeju 690-756, Korea. ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576