摘要
用微波法对杜仲不同部位提取总黄酮,以芦丁作为对照品,用硝酸铝-亚硝酸钠显色、用紫外-可见分光光度计测得杜仲老叶、嫩叶、细枝、粗枝、一年生枝、主杆、主杆皮、主根、主根皮、须根的总黄酮含量分别为6.05%、4.65%、0.52%、0.33%、0.285%、0.23%、0.15%、0.15%、0.155%、0.165%。结果显示老叶中总黄酮的含量最高,可以对杜仲叶的利用进行更多的探索。
Flavonids in different parts of Eucommia ulmoides Oliver were determined by microwave extraction, Al（ NO3 ） 3 - NaNO2 chromogenesis, and UV spectroscopy based on reference material of rutin. The content of flavonoids in old leaf, young leaf, twig, thick twig, annual branch, trunk, trunk bark, taproot, taproot bark, and fibrous root, was 6.05 %, 4.65 %, 0.52 %, 0.33 %, 0. 285 % , 0.23 %, 0.15 %, 0. 155 %, 0. 165 % , respectively. The experimental results showed that old leaves had the highest content of flavonoids. It was indicated that old leaves of Eucommia ulmoides Oliver were worth to be developed and utilized in the next step.
出处
《生物质化学工程》
CAS
2007年第3期37-38,共2页
Biomass Chemical Engineering
关键词
杜仲
总黄酮
微波提取
含量测定
Eucommia ulmoides
total flavone
microwave extraction
content determination
