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Development of Global Chemical Profiling for Quality Assessment of Ganoderma Species by ChemPattern Software

机译:通过ChemPattern软件开发用于灵芝物种质量评估的全球化学分析

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摘要

Triterpenoids are the major secondary metabolites and active substances in Ganoderma, considered as the “marker compounds” for the chemical evaluation or standardization of Ganoderma. A response surface methodology was used to optimize the ultrasonic-assisted extraction of triterpenoids. The extraction rate was 7.338 ± 0.150 mg/g under the optimum conditions: 87% ethanol, ratio of solid to liquid (w : v) 1 : 28, and ultrasound extraction time 36 min. Based on the high sensitivity and selectivity of HPLC-LTQ-Orbitrap-MSn, 24 components of triterpenoids were tentatively identified in the negative mode. Then, the global chemical profiling consisting of HPLC and TLC fingerprints generated by ChemPattern™ software was developed for evaluation of Ganoderma species. For fingerprint analysis, 11 peaks of triterpenoids were selected as the characteristic peaks to evaluate the similarities of different samples. The correlation coefficients of similarity were greater than 0.830. The cluster analysis showed a clear separation of three groups, and 11 peaks played key roles in differentiating these samples. The developed global chemical profiling method could be applied for rapid evaluation, quality control, and authenticity identification of Ganoderma and other herbal medicines.
机译:三萜类化合物是灵芝中主要的次要代谢产物和活性物质,被视为灵芝化学评估或标准化的“标志物”。使用响应面方法优化了三萜类化合物的超声辅助提取。在最佳条件下,提取率为7.338±0.150μg/ g:乙醇87%,固液比(w:v)1:28,超声提取时间36 min。基于高效液相色谱-LTQ-Orbitrap-MS n 的高灵敏度和选择性,初步确定了以负离子模式鉴定的三萜类化合物的24种成分。然后,开发了由ChemPattern™软件生成的由HPLC和TLC指纹组成的全局化学谱,用于评估灵芝物种。为了进行指纹分析,选择了三萜类化合物的11个峰作为特征峰,以评估不同样品的相似性。相似度的相关系数大于0.830。聚类分析显示三组明显分离,11个峰在区分这些样品中起关键作用。发达的全球化学特征分析方法可用于灵芝和其他草药的快速评估,质量控制和真实性鉴定。

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