陈贤双, 李科, 李震宇, 秦雪梅. 基于SPME-GC-MS结合多元统计的不同产地黄芪挥发性成分差异分析J. 药学学报, 2020,55(5): 979-986. doi: 10.16438/j.0513-4870.2019-0814
引用本文: 陈贤双, 李科, 李震宇, 秦雪梅. 基于SPME-GC-MS结合多元统计的不同产地黄芪挥发性成分差异分析J. 药学学报, 2020,55(5): 979-986. doi: 10.16438/j.0513-4870.2019-0814
CHEN Xian-shuang, LI Ke, LI Zhen-yu, QIN Xue-mei. Analysis of the volatile components of Astragali Radix from different habitats by SPME-GC-MS combined with multivariate statistical analysisJ. Acta Pharmaceutica Sinica, 2020,55(5): 979-986. doi: 10.16438/j.0513-4870.2019-0814
Citation: CHEN Xian-shuang, LI Ke, LI Zhen-yu, QIN Xue-mei. Analysis of the volatile components of Astragali Radix from different habitats by SPME-GC-MS combined with multivariate statistical analysisJ. Acta Pharmaceutica Sinica, 2020,55(5): 979-986. doi: 10.16438/j.0513-4870.2019-0814

基于SPME-GC-MS结合多元统计的不同产地黄芪挥发性成分差异分析

Analysis of the volatile components of Astragali Radix from different habitats by SPME-GC-MS combined with multivariate statistical analysis

  • 摘要: “豆腥气”是黄芪重要的道地性特征之一,阐明黄芪“豆腥气”物质基础对于研究道地药材特征、建立道地药材质控方法具有重要意义。目前已有报道对不同产地黄芪挥发性成分分析,但并未进行系统全面的研究。本实验运用了固相微萃取气质联用(SPME-GC-MS)技术分析了山西(仿野生芪)、甘肃(栽培芪)、内蒙古(栽培芪)3个产地黄芪挥发性成分,结合多元统计分析的方法探讨3个不同产地黄芪挥发性成分的差异,并通过主成分分析(PCA)、偏最小二乘判别分析(PLS-DA)进行多元统计分析和评价。结果显示,利用SPME-GC-MS技术对3个产地黄芪挥发性成分进行分析,共鉴定出76种挥发性成分;PCA模型结果表明黄芪中挥发性成分与产地具有相关性;PLS-DA可以实现3个产地黄芪样本的分离,不同产地黄芪样本中挥发性成分存在较明显差异;并筛选出己酸、正己醛、2-丁基-2-辛烯醛、正己醇、苯甲醇、2-丁基呋喃这6种主要的差异挥发性物质;并且发现不同产地、栽培方式黄芪中正己醛和己酸比值存在较大差异,山西仿野生芪中正己醛/己酸平均相对含量比值为7.8:1,而内蒙古、甘肃栽培芪中正己醛/己酸的比值分别为2.3:1和0.96:1。本研究鉴定出的挥发性成分不仅为黄芪道地性特征“豆腥气”研究奠定了基础,也为黄芪质量控制提供了新的思路。

     

    Abstract: “Beany flavor” is one of the important authentic characteristics of Astragali Radix. It is important to clarify the material basis of “Beany flavor” in the characterization of authentic medicinal materials and establishing quality control methods for authentic medicinal materials. At present, the analysis of volatile components in different habitats has been reported, but systematic comprehensive research has not been conducted. The SPME-GC-MS technique was used to analyze the volatile components of Astragali Radix from three producing areas:Shanxi (wild-simulated Astragali Radix), Gansu (cultivated Astragali Radix) and Inner Mongolia (cultivated Astragali Radix). Combined with the method of multivariate statistical analysis, the difference of volatile components of Astragali Radix from the three different producing areas is discussed. Multivariate statistical analysis and evaluation was conducted through principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA). Seventy-six volatile components of Astragali Radix from the three producing areas were identified by SPME-GC-MS. PCA model results showed that the volatile components correlated with their producing areas. PLS-DA demonstrated that the volatile components of Astragali Radix samples from different producing areas were significantly different. Six volatile substances including hexanoic acid, hexanal, 2-butyl-2-octenal, 1-hexanol, benzyl alcohol and 2-butylfuran were quantified. The ratio of hexanal to hexanoic acid in Astragali Radix from different areas and cultivation methods was significantly different:the ratio of hexanal:hexanoic acid in wild-simulated Astragali Radix of Shanxi was 7.8:1, while the ratio of hexanal:hexanoic acid in cultivated Astragali Radix of Inner Mongolia and Gansu was 2.3:1 and 0.96:1, respectively. The volatile components identified in this study provide a foundation for continued research of and quality control of Astragali Radix.

     

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