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浙产女贞子中红景天苷含量动态变化及区域差异性研究

2016-03-28程斌周爱珍凌庆枝

中国中医药信息杂志 2016年4期
关键词:浙江

程斌 周爱珍 凌庆枝

摘要:目的 采用高效液相色谱法测定不同生长期、不同区域浙产女贞子中的红景天苷含量,为更合理、有效地从女贞子中提取红景天苷提供依据。方法 色谱柱:Kromasil C18(4.6 mm×150 mm, 5 μm);流动相:乙腈-水(10∶90);流速:1.0 mL/min;检测波长:220 nm;柱温:室温;进样量:20 μL。结果 红景天苷在0.71~3.55 μg范围内与峰面积积分值呈良好线性关系(r=0.999 4);加样回收率在95.6%~98.6%之间,平均加样回收率为96.88%,RSD=1.32%(n=5)。结论 红景天苷在女贞子中的含量随生长期延长逐渐下降,不同区域、不同采收期女贞子中红景天苷的含量不同。

关键词:女贞子;红景天苷;含量变化;区域差异;浙江

DOI:10.3969/j.issn.1005-5304.2016.04.025

中图分类号:R284.1 文献标识码:A 文章编号:1005-5304(2016)04-0095-03

Study on Dynamic Changes and Regional Differences of Content of Salidroside in Ligustri Lucidi Fructus in Zhejiang Province CHENG Bin1,2, ZHOU Ai-zheng1, LING Qing-zhi1 (1. Zhejiang Pharmaceutical College, Ningbo 325035, China; 2. Zhejiang Chinese Medical University, Hangzhou 310053, China)

Abstract: Objective To determine content of Salidroside in Ligustri Lucidi Fructus at different growth stages and in different regions in Zhejiang Province by HPLC; To provide the basis for more rational, efficient extraction of Salidroside from Ligustri Lucidi Fructus. Methods The Kromasil C18 column (4.6 mm×150 mm, 5 μm) was used with mobile phase of acetonitrile-water (10:90); flow rate was 1.0 mL/min; detection wavelength was 220 nm; column temperature was set at room temperature; injection volume was 20 μL. Results Salidroside was in good linear range within 0.71–3.55 μg (r=0.999 4). The recovery rate of Salidroside was 95.6%–98.6% and the average recovery rate was 96.88%, RSD was 1.32% (n=5). Conclusion The content of Salidroside in Ligustri Lucidi Fructus gradually decreased with the extending of growing season. The contents of Salidroside were different at different growth stages and in different regions.

Key words: Ligustri Lucidi Fructus; Salidroside; content changes; regional differences; Zhejiang Province

红景天苷是景天科红景天属植物的主要有效成分之一,具有抗缺氧、保护心脑血管、抗肝纤维化等多种药理作用,作为药品、保健食品的原料得到广泛开发应用,但天然红景天植物资源逐渐匮乏,导致红景天苷价格昂贵,已成为其进一步开发利用的瓶颈。女贞子为木犀科植物女贞Ligustrum Lucidum Ait.的干燥成熟果实,主产于浙江、江苏、安徽等地,为临床常用补虚药,味甘、苦,性凉,归肝、肾经,具有滋补肝肾、明目乌发功效,常用于治疗肝肾阴虚引起的目暗不明、视力减退、须发早白。女贞子化学成分包括三萜类、黄酮类、裂环环烯醚萜类和对羟基苯乙醇

基金项目:浙江省教育厅一般科研项目(Y201226174);高等学校访问工程师校企合作项目(FW2012004);浙江医药高等专科学校校级科研课题(ZPCSR2010002)

苷类等化合物[1-2],其中红景天苷含量可观,有望成为红景天苷的另一有效的天然来源[3-4]。……

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