红外光谱三级鉴别法联合高效液相色谱-质谱法研究不同采收期黄芩药材的质量
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篇名: | 红外光谱三级鉴别法联合高效液相色谱-质谱法研究不同采收期黄芩药材的质量 |
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摘要: | 目的:研究不同生长期春秋两季采收黄芩药材中有效成分种类及含量的差异,为确定黄芩的最佳采收期提供技术支持。方法:对赤峰产黄芩不同采收期药材样品(一年、二年、三年生长期,在各年份的春季和秋季分别采挖),应用红外光谱三级鉴别技术(IR-TL)分析其整体成分构成变化,以高效液相色谱-质谱联用技术(HPLC-MS)分析药材中6种黄酮类成分(千层纸素A、白杨素、黄芩素、汉黄芩素、黄芩苷、汉黄芩苷)含量的变化。结果:IR-TL分析结果显示,不同生长期黄芩所含黄酮类、苷类、糖类、酯类等成分均有所不同,其中二年生黄芩中的苷类物质含量最高、药材质量更稳定;6种黄酮类成分含量测定结果显示,不同采收期对上述指标成分含量有较大影响,其中二年生春季采收样品的整体含量高于同年份秋季采收样品。结论:本研究可为黄芩药材质量的控制提供可靠的分析方法;二年生长期春季采收可能为黄芩的最佳采收时间。 |
ABSTRACT: | OBJECTIVE: To study effective component kinds and content difference of Scutellaria baicalensis with different harvesting periods collected in spring and autumn, and to determine the optimal harvesting time. METHODS: IR-IL was used to analyze the constitutions change of the components in S. baicalensis collected in different harvesting periods (annual, biennial and triennial, in spring and autumn, respectively). HPLC-MS method was used to analyze the contents change of 6 flavonoids (qroxylin A, chrysin, wogonin, wogonoside, baicalin, baicalein). RESULTS: Results of IR-TL analysis showed that S. baicalensis contained different components such as flavonoids, glycosides, saccharides, easters in different growth stages, among which the contents of glycosides in biennial S. baicalensis were the highest with more stable quality. The results of content determination of 6 flavonoids showed that different harvesting periods had a great influence on the contents of the above indicators. The overall content of biennial samples collected in spring was higher than that of autumn samples collected in the same year. CONCLUSIONS: This study provides a reliable analytical method for the quality control of S. baicalensis; spring harvest in two-year growth period may be the best harvesting time for S. baicalensis. |
期刊: | 2019年第30卷第12期 |
作者: | 赵胜男,刘素丽,徐杨璐,李守拙 |
AUTHORS: | ZHAO Shengnan,LIU Suli,XU Yanglu,LI Shouzhuo |
关键字: | 黄芩;红外光谱三级鉴别;高效液相色谱-质谱联用法;采收期;鉴定;含量测定;质量控制 |
KEYWORDS: | Scutellaria baicalensis; IR-TL; HPLC-MS; Harvesting period; Identification; Content determination; Quality control |
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