Analysis of taxol and related compounds in Ullung Island yew (Taxus cuspidata var. latifolia) = 울릉도 주목(Taxus cuspidata var. latifolia)의 Taxol 및 관련 화합물의 함량분석

Abstract

The content of taxol and related compounds in various tissues of native yews( T. cuspidata var. latifolia) ： town in 5 locations of Ullung Island were analyzed. A considerable range of variation in the content w is observed in the needle and bark collected from different trees located at the same area as well as at five different areas. Taxol content was much higher in the needle( 0.017% on the dry weight basis) tha 1 those in the bark, whereas the content of 10-deacetyl baccatin [11( 10-DAB III) was slightly higher in tie bark( 0.073% ), regardless of the location of the trees collected. Particuarly, the needle collected froi i the Hyunpo area, which located in North-west part of Ullung Island, contained the highest level of ti xol(0.024% ) exceeding the reported level in dried barks of Pacific yew and also somewhat higher lev 1 of its precusor, 10-DAB 111(0.049%). These results suggested that the needle .of the yew at the Ullung Island could be suitable materials as a renewable source for the mass production of taxol.