The chlorogenic acid contents in 13 cuhivars of Dendranthema morifolium (Ramat.) Tzvel. from 4 provinces in China were determined by RP-HPLC. The results showed that the contents of chlorogenic acid in different medicinal cuhivars of D. morifolium were Hangju ‘Xiao huangju' 0. 243% , Hangju ‘Xiao yangju' 0. 457% , Hangju ‘Da yangju'0. 309% , Hangju ‘ Yizhong Dayangju' 0. 306%, Hangju ‘Da yangju' ( processed by microwaves) 0. 511% , Huaiju ‘Xiao baiju' 0. 554% , Huaiju ‘Da baiju' 0. 224%, Huaiju ‘Da huangju' 0. 655% , Jiju 0. 434% , Boju 0. 161% ,Gongju 0. 719%, Chuju 0. 397% and Zhonghuagongju 0. 590%. The content of chlorogenic acid in Gongju from Huangshan, Anhui Province is higher than those from other cuhivars significantly.
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