LU Wen-yun;HE Ke-qun;Jiang XiYan;Ci QuZhen;Liao JianHu

College of Chemistry and Environment,Guizhou University for Nationalities,Guiyang,Guizhou 550025,Chin;College of Chemistry and Environment,Guizhou University for Nationalities,Guiyang,Guizhou 550025,China

dendrobii;herba;polysaccharides;the content;total alkaloids;the pric

[Objective]To explore the relationship between market pricing and the content of total alkaloids and polysaccharides of Herba Dendrobii in different origins.[Method]The content of total alkaloids and polysaccharides in Herba Dendrobii were determined with the bromocresol green colorimetry and phenol-concentrated sulfuric acid colorimetry respectively,and comparatively analyzed with the price.[Result]The contents of total alkaloids and polysaccharides of Herba Dendrobii in different origins varied,which was high in Dendrobium nobile(obtained from Chishui,Guizhou Province),Dendrobium loddigesii Rolfe.,Dendrobium chrysanthun Wall.and Dendrobium fimbriatum Hook.Var.oculatum Hook.(obtained from Xingyi,Guizhou Province).Meanwhile,the content of total alkaloids,polysaccharides had positive correlation with the prices of Herba Dendrobii.[Conclusion]There was a close relationship between the content of total alkaloids,polysaccharides and the prices of Herba Dendrobii,both of which were affected by their habitats.The study will provide references for the market pricing and quality evaluation of Herba Dendrobii.