[关键词]
[摘要]
目的 识别酒萸肉特征性成分并检测其含量。方法 应用UPLC-Q-TOF/MS检测酒萸肉及其生品化学成分谱,并基于化学计量学方法识别酒萸肉的特征成分。建立基于超高效液相色谱-光电二极管矩阵检测器(UPLC-PDA)的酒萸肉特征成分含量测定方法,对12批次酒萸肉及其生品的特征成分含量进行检测。结果 酒萸肉及其生品的化学成分谱不尽相同,共获得10个可表征酒萸肉的特征成分,包括5-羟甲基糠醛、没食子酸、原儿茶酸、莫诺苷、马钱苷酸、獐芽菜苷、山茱萸苷、二氢槲皮素、马钱苷、山茱萸新苷。建立了基于UPLC-PDA的多成分含量测定方法,方法学考察结果显示10个特征成分线性关系良好(r≥0.999 7)。与同批次生品比较,酒萸肉中的5-羟甲基糠醛、二氢槲皮素、没食子酸、马钱苷、莫诺苷、山茱萸苷和獐芽菜苷7个成分含量显著升高,原儿茶酸、马钱苷酸和山茱萸新苷3个成分含量显著降低。结论 基于化学计量学筛选获得的特征成分可以区分酒萸肉及其生品,建立的酒萸肉多成分含量测定方法,线性关系良好、快速简便、稳定可靠,可为酒萸肉质量控制提供参考。
[Key word]
[Abstract]
Objective To screen the differential ingredients between crude and wine-processed Corni Fructus and determin their content. Methods An integrated strategy using ultra performance liquid chromatography coupled with tandem quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF/MS) and the chemometric approach was applied to compare the global chemical profile of crude and wine-processed Corni Fructus. Then, the main differential ingredients were quantified by UPLC-PDA. Results The chemical profiling of wine-processed Corni Fructus was significantly different. Ten compounds could be considered as characteristic chemical markers for distinguishing crude and wine-processed Corni Fructus, including 5-hydroxymethyl furfuraldehyde (5-HMF), gallic acid, protocatechuic acid, morroniside, loganic acid, sweroside, cornin, dihydroquercetin, loganin and cornoside. A new UPLC-PDA quantitative method for analyzing simultaneously the above ten compounds in wine-processed Corni Fructus was established. The results of methodology investigation showed that the ten components were well linear within the investigation range (r ≥ 0.999 7). Compared with the crude Corni Fructus, the content of seven components were increased, including gallic acid, 5-HMF, loganin, morroniside, cornin, sweroside and dihydroquercetin, and the other three components in wine-processed Corni Fructus were decreased. Conclusion The differential ingredients obtained by chemometric-based approach can be used to distinguish crude and wine-processed Corni Fructus. The determination method of wine-processed Corni Fructus established is accurate and reliable, which can be used for the quality control of Corni Fructus.
[中图分类号]
R286.2
[基金项目]
国家中药标准化项目(ZYBZH-C-JL-24)