Application of Metabolomics Approach to Study on Chemical Constituents in Cultivated and Wild Pinellia ternate (Thunb.) Breit. and Typhonium flagelliforme (Lodd.) Blume Based on UPLC-ESI-HRMS^n

[Objectives] The aim was to study chemical components of cultivated and wild Pinellia ternate(Thunb.) Breit and Typhonium flagelliforme(Lodd.) Blume by metabolomics technology based on UPLC-ESI-HRMS^n. [Methods] Chemical components of 27 samples of cultivated and wild P. ternate and T. flagelliforme were detected by using UPLC-ESI-HRMS^ntechnology. Differential markers between P. ternate and T. flagelliforme as well as cultivated and wild P. ternate were screened and identified by principal component analysis(PCA) and orthogonal partial least square-discriminate analysis(OPLS-DA). [Results]12 components of P. ternate(cultivated and wild variety) and T.flagelliforme and three components of cultivated and wild P. ternate were screened and identified by OPLS-DA. N-Acetyl-6-hydroxy-L-tryptophan and N-Phenylacetylglutamic were not detected in P. ternate,and these two components can be used as potential markers of P. ternate and T. flagelliforme. [Conclusions]UPLC-ESI-HRMS^n-based metabolomics technology could be used to quickly identify the chemical constituents of P. ternate and effectively distinguish P. ternate and T. flagelliforme,which has reference significance for the quality control of P. ternate.

基于UPLC-ESI-HRMS^n技术的藏药塔黄的化学成分分析

目的采用UPLC-ESI-HRMS^n技术对藏药塔黄Rheumnobile的甲醇提取物进行分离鉴定分析。方法 ACQUITYUPLC BEH C18(100 mm×2.1 mm,1.7μm)色谱柱进行分离,甲醇-0.1%甲酸水溶液为流动相进行梯度洗脱,质谱采用正负离子监测模式、全扫描及自动触发二级质谱扫描进行数据采集。通过高分辨质谱数据,结合HMDB数据库、参考相关文献以及对照品比对,鉴定塔黄的主要化学成分。结果从塔黄的甲醇提取物中共鉴定了34个化学成分,包括蒽醌类4个、酚酸类15个、鞣质及鞣质前体类11个、有机酸4个。其中27个化学成分首次从该植物中分离得到。结论 UPLC-ESI-HRMS^n技术可快速、准确地鉴定塔黄中化学成分,为其药效物质基础及质量控制提供理论依据。

基于UPLC-ESI-HRMS^n评价不同干燥方式对粗茎秦艽中环烯醚萜类及黄酮类成分的影响

目的通过化学成分测定,评价远红外干燥、真空干燥、冷冻干燥、阴干、烘干、"发汗"干燥对粗茎秦艽品质的影响。方法采用UPLC-ESI-HRMS^n测定秦艽中4个环烯醚萜类成分(獐牙菜苦苷、龙胆苦苷、马钱苷酸、獐牙菜苷)和4个黄酮类成分(木犀草素、异牡荆素、芹菜素、山柰酚)质量分数。并结合单因素方差分析、聚类分析、逼近理想值排序法(TOPSIS)分析综合评价不同干燥方式所得样品的品质,确定最佳干燥方式。结果不同干燥方法样品的獐牙菜苦苷差异不显著,龙胆苦苷、马钱苷酸、獐牙菜苷、木犀草素、异牡荆素、芹菜素和山柰酚差异明显。其中,4个环烯醚萜类成分在冷冻干燥中保留最佳;4个黄酮类成分在"发汗"干燥中保留最佳。各成分在阴干样品中质量分数最低。聚类分析及TOPSIS分析表明"发汗"干燥具有与冷冻干燥相似的品质,且品质最好,其次是烘干干燥和远红外干燥,阴干干燥的样品品质最差。结论不同干燥方式对秦艽药材品质的影响值得关注。研究表明《中国药典》2015年版收载秦艽"发汗"的干燥方法具有科学性。但传统"发汗"过程时间较长,为了提高干燥效率,进一步研究方向应关注"发汗"干燥结合现代干燥技术如热风干燥、冷冻干燥、真空干燥以保证秦艽药材稳定品质的基础上缩短干燥时间。