应用HPLC和紫外分光光度计测定了26份不同产地的枳椇子Hovenia acerba中二氢杨梅素和总黄酮的含量,并进一步探讨了枳椇子品质指标二氢杨梅素和总黄酮与产地、外观性状的相关性。结果表明,不同来源的枳椇子品质差异较大,二氢杨梅素质量分数为0.41~9.81 mg·g-1;总黄酮质量分数为5.52~21.98 mg·g-1。聚类分析表明,枳椇子品质与局部产区来源有相关性,鄂北皖南的江汉平原地区枳椇子质量相对稳定,区域内枳椇子样品质量较优。相关性分析表明,千粒重和红黑籽粒的比例与二氢杨梅素的含量极显著正相关;而总黄酮含量与千粒重以及红黑籽粒比例无相关关系,千粒重和红黑籽粒的比例可做为初步判定枳椇子品质优劣的指标。另外,二氢杨梅素含量与总黄酮含量无相关关系,考察枳椇子品质时应兼顾两者。 The contents of dihydromyricetin and total flavonoids in Hovenia acerba from 26 different producing areas were determined by HPLC and UV spectrophotometer. The results showed that the content of dihydromyricetin, total flavonoids and origin, Relevance of traits. The results showed that the quality of Hovenia dulcis Thunb was significantly different from different sources, with the mass fraction of dihydromyricetin being 0.41 ~ 9.81 mg · g-1 and the total flavonoid content of 5.52 ~ 21.98 mg · g-1. Cluster analysis showed that the quality of Hovenia dulcis Thunb was correlated with the origin of the local producing areas. The quality of Hovenia dulcis Thunb was stable in the Jianghan Plain of Wannan in Northern E’nan, and the Hovenia dulcis Thunb. Quality was superior in the region. Correlation analysis showed that the proportion of 1000-grain weight and red-black grain was significantly and positively correlated with the content of dihydromyricetin, while the content of total flavonoids had no correlation with 1000-grain weight and the proportion of red and black grains. Judgments Hovenia Son of quality indicators. In addition, dihydromyricetin content and total flavonoids content was not related to the study of Hovenia dulcis quality should take into account both.