Comparative Study on Contents of Total Triterpenoid of 6 Kudingcha Species in Aquifoliaceae

5% vanillin acetum and perchloric acid were used as the color developer,and the pure ursolic acid was used as the reference,the contents of total triterpenoid in adult leaves of 6 Kudingcha species in Aquifoliaceae and 4 kind marketed shoots products of Ilex kudingcha C. J. Tseng were determined by spectrophotometry at 548 nm. The results showed that the adult leaves of I. latifolia Thunb. had the highest total triterpenoid,and the marketed shoots products of I. kudingcha C. J. Tseng had the lowest total triterpenoid on average. The contents of total triterpenoid in 6 Kudingcha species in Aquifoliaceae for test samples were sorted as follows:I. latifolia Thunb. (4.209%)I. cornuta Lindl. (3.866%) I. huoshanesis Y. H. He (3.064) I. centrochinesis X. Y. Hu (2.775%) I. kudingcha C. J. Tseng (2.74%)I. pentagona S. K. Chen,Y. X. Feng et C. F. Liang (2.648%).