Institute of Quality Standards and Testing Technology, Yunnan Academy of Agricultural Sciences, Agricultural Product Quality Supervision and Inspection Center, Ministry of Agriculture, Kunming 650223, China.
Key Laboratory of Ethnomedicinal Resource Chemistry, Yunnan University for Nationalities, Kunming 650500, China.
Molecules. 2024 Jun 20;29(12):2930. doi: 10.3390/molecules29122930.
A method was developed to identify and trace the geographic sources of using high-resolution mass spectrometry and chemometrics. The representative samples were collected from the geographic area of Honghe Dengzhanhua and other areas in Yunnan province and Guizhou province. The data points could be determined well using the PCA and PLS-DA diagram. A total of 46 characteristic compounds were identified from Honghe Dengzhanhua and within Guizhou province, but 37 compounds were different from Honghe Dengzhanhua and other counties in Yunnan province. Two biomarkers were found from three regions. Their structures were inferred as 8-amino-7-oxononanoic acid and 8-hydroxyquinoline, and they had the same molecular composition. This may suggest that a possible synthesis pathway can be proven in the future.
建立了一种利用高分辨质谱和化学计量学方法来鉴定和追踪使用的地理来源的方法。代表性样品取自云南省红河灯盏花和其他地区以及贵州省的地理区域。可以使用 PCA 和 PLS-DA 图很好地确定数据点。从红河灯盏花和贵州省共鉴定出 46 种特征化合物，但与云南省其他县的红河灯盏花有 37 种不同的化合物。从三个地区发现了两种生物标志物。它们的结构被推断为 8-氨基-7-氧代壬酸和 8-羟基喹啉，它们具有相同的分子组成。这可能表明未来可以证明存在一种可能的合成途径。
