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한국자원식물학회 / v.10, no.3, 1997년, pp.227-230 
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( Antioxidative Activity of Urushiol Derivatives from the Sap of Lacquer Tree (Rhus vernicifera Stokes) ) |
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| 초 록 |
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| The authors isolated four olefinic catechols, commonly referred to as urushiol, from the sap of Korean lacquer tree(Rhus vernicifera STOKES) with stronger antioxidative activities than $alpha-tocopherol$. The hexane extract with a free radical scavenging activity was purified by silica and ODS gel column chromatography. The active compounds were identified by MS and $^1H-NMR$ as 3-[8'(Z),11'(Z),14'-pentadecatrienyl]catechol, 3-[8'(Z),11'(Z)-pentadecadienyl]catechol, 3-[8'(Z)-pentadecenyl] catechol, and 3-pentadecylcatechol. All of these compounds showed strong free radical scavenging activities on 1,1-diphenyl-2-picrylhydrazyl(DPPH) radical, in which 3-pentadecylacatechol exhibited the highest activity ($IC_{50}$: $1.2{mu}g/ml$). They also showed a significant inhibitory activity on lipid peroxidation ($IC_{50}$: 2.1 - 3.5 ${mu}g/ml$). The antioxidative activity of 3-pentadecylcatechol on DPPH radical and lipid peroxidation is approximately two times greater than that of $alpha$-tocopherol. The results suggest that the urushiol derivatices may contribute to the preservative characteristics effective against oxidative stress and could be a good source for industrial applications including a coating material. |
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| 키워드 |
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한국자원식물학회지 / v.10, no.3, 1997년, pp.227-230
한국자원식물학회
ISSN : 1226-3591
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199711920278763)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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