HPLC测定银线草中酚酸的含量

2015-10-21 18:06:31袁琴琴
安徽农业科学 2015年31期

袁琴琴

摘要[目的]采用HPLC方法测定不同部位不同采收季节银线草中酚酸类含量。[方法]采用高效液相色谱法,色谱柱为Phenomenex C18(250 mm×4.6 mm,5 μm);流动相甲醇-0.1%甲酸线性梯度洗脱,流速为0.8 ml/min;检测波长323 nm,柱温25 ℃。[结果]银线草中迷迭香酸、反丁烯二酸、绿原酸在测定范围内线性关系较好(r≥0.999 1),平均回收率为97.5%~105.1%;不同部位不同采收季节银线草酚酸类含量存在一定差异。[结论]该方法操作简便、定量准确、重现性好,可用于银线草中酚酸类含量的测定。

关键词银线草;HPLC;酚酸;含量测定

中图分类号S567.23+9文献标识码

A文章编号0517-6611(2015)31-074-03

Determination of the Phenolic Acids Content in Chloranthus japonicus Sieb. by HPLC

YUAN Qinqin1,2

(1.Department of Life Science, Heze University, Heze,Shandong 274000;2.Key Laboratory of Medicinal Resource and Natural Pharmaceutical Chemistry of Ministry of Education,National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drug in Northwest of China, Shaanxi Normal University, Xian,Shaanxi 710062)

Abstract [Objective]Determination of different parts and seasons of phenolic acids content in Chloranthus japonicus Sieb. by HPLC.[Methods]The chromatographic separations were obtained by the Phenomenex C18(250 mm×4.6 mm,5 μm)with the gradient elution solvent system composed of methanol and 0.1%formicacid,the flow rate was 0.8 ml/min, the wavelength was set at 323 nm and the column temperature was maintained at 25 ℃.[Results]The linear ranges of fumaric acid, chlorogenic acid and rosmarinic acid were better (r>0.999 1), the average recovery between 97.5%-105.1%.There was a certain difference of different parts and seasons of phenolic acids content in Chloranthus japonicus Sieb..[Conclusion]The method was simple, accurate quantitative and good reproducibility,which can be used for the determination of phenolic acids content in Chloranthus japonicus Sieb..

Key words Chloranthus japonicus Sieb.;HPLC;Phenolic acids; Content determination

銀线草(Chloranthus japonicus Sieb.)是金粟兰科(Chloranthaceae)金粟兰属(Chloranthus Swartz)多年生的草本植物,以全草或根入药,主要治瘀血肿痛、毒蛇咬伤、疖疮肿毒等,一直作为民间中草药被广泛的使用。银线草的化学成分复杂,主要含有倍半萜类、酚类、香豆素类、酰胺类、木脂素类、甾体及甾体皂苷类等[1-4]。银线草中的酚酸类物质是其主要活性成分之一,现代药理学研究表明,酚类成分具有良好的抗氧化、抗菌、抗病毒、抗肿瘤、抗激素、抗血栓、抗变态反应等活性[5-6]。由于它们特殊的生理作用,研究酚类化合物具有十分重要的意义。该试验采用HPLC法测定了银线草不同采收季节不同部位的迷迭香酸、反丁烯二酸、绿原酸的含量,以期为银线草资源的合理开发利用提供基础研究数据,也为进一步对银线草的活性成分研究奠定了基础。

1材料与方法

1.1材料

1.1.1试材。银线草于2011年4~7月底采集于陕西省太白山,经陕西师范大学生命科学院田先华教授鉴定为金粟兰科金粟兰属植物银线草(Chloranthus japonicus Sieb.)。

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