Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.
Department of Surgery, University of Michigan, Ann Arbor, United States.
J Sep Sci. 2017 May;40(9):1928-1941. doi: 10.1002/jssc.201600913. Epub 2017 Apr 19.
A metabolomics method based on ultra high performance liquid chromatography with quadrupole time-of-flight mass spectrometry was developed to evaluate the influence of processing times on the quality of raw and processed Polygoni Multiflora Radix. Principal component analysis and partial least-squares discriminant analysis was used to screen the potential maker metabolites that were contributed to the quality changes. Then these marker metabolites were selected as variables in Fisher's discriminant analysis to establish the models that were used to distinguish the raw and processed Polygoni Multiflora Radix in the markets. Additionally, 36 compounds were identified. Twelve raw Polygoni Multiflora Radix samples and 23 processed Polygoni Multiflora Radix samples were distinguished. The results showed that the 12 raw Polygoni Multiflora Radix samples belonged to the group of processing time of 0 h, and two processed Polygoni Multiflora Radix samples were part of the group of processing times of 4 h, 12 samples belonged to group of processing times of 8 to 16 h, and nine samples were the group of processing times of 24 to 48 h. The results demonstrated that the method could provide scientific support for the processing standardization of Polygoni Multiflora Radix.
建立了一种基于超高效液相色谱-四极杆飞行时间质谱的代谢组学方法，用于评估加工时间对生首乌和制首乌质量的影响。采用主成分分析和偏最小二乘判别分析筛选潜在的标志物代谢物，这些标志物代谢物被选为Fisher 判别分析中的变量，以建立区分市场中生首乌和制首乌的模型。此外，鉴定出 36 种化合物。区分了 12 个生首乌样品和 23 个制首乌样品。结果表明，12 个生首乌样品属于 0 h 加工时间组，2 个制首乌样品属于 4 h 加工时间组，12 个样品属于 8 ～ 16 h 加工时间组，9 个样品属于 24 ～ 48 h 加工时间组。结果表明，该方法可为首乌炮制规范化提供科学依据。
