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건칠(乾漆) 추출물(Nexia)의 Quality Control을 위한 기시법 및 안정성 연구
박상재,김경석,정현식,최원철,윤성우,Park, Sang-Jae,Kim, Kyung-Suk,Jung, Hyun-Sik,Choi, Won-Cheol,Yoon, Seong-Woo 대한암한의학회 2006 大韓癌韓醫學會誌 Vol.11 No.1
Rhus Verniciflua Stokes has been used for long history to treat blood stasis and cancer in Oriental Medicine. But urushiol, a constituent of Rhus Verniciflua Stokes has T-cell mediated allergic reaction, so it has made clinical limitation. Nexia is allergen removed extract of Rhus Verniciflua Stokes and its extraction process as well as quality control is needed to be standardized. The optimized extraction condition is as follow; temperature is $90{\sim}95^{\circ}C$, volume of slovent 10 times, extraction time >6 hours, pressure $<lkg/cm^2$, slovnet water or EtOH(60%), yield 8.1${\sim}$9.8(w/w). HPLC pattern and isolation study showed Nexia contain fisetin(>13.0%), fustin(>7.0%) and no urushiol.