栽培方式对杜仲皮次生代谢物含量的影响

采用叶林和乔林两种栽培模式对杜仲定向培育,并分别对杜仲皮次生代谢物含量进行了测定.结果表明:在不同的栽培模式下,杜仲皮中次生代谢物的含量存在差异,杜仲醇和杜仲胶的含量,乔林皮高于叶林皮;京尼平甙酸、绿原酸、桃叶珊瑚甙的含量则是叶林皮高于乔林皮;总黄酮的含量随提取溶剂的不同而有高有低.对杜仲皮进行不同的预处理和选用不同的提取溶剂,能改变提取得率,但是,叶林皮与乔林皮次生代谢物含量变化趋势基本不变,说明栽培方式对杜仲皮次生代谢物有一定影响.

Effects of Planting Modes on Secondary Metabolite Contents in Eucommia ulmoides Barks

Eucommia ulmoides Oliv.was planted in the forms of foliage and arbor forests and secondary metabolite contents in its bark in the planting modes were determined.It was shown that secondary metabolite contents in different planting modes differed.Eucommiol and gutta-percha contents in the bark of arbor forests were higher than those of foliage forests,geniposidic and chlorogenic acid and aucubin contents in the bark of foliage forest were higher than those of arbor forest,and total flavonoids varied depending on the kinds of extraction solvents.The pretreatment and different extraction solvents of E.ulmoides bark could change the extraction rates,but secondary metabolite contents showed an unchanged tendency,which indicated that the planting modes exert certain influence on secondary metabolite contents of E.ulmoides bark.