[Effect of preparation on the major chemical constituents of Polygonum multiflorum].Zhong Yao Cai. 2006 Oct; 29(10):1017-9.ZY
To study the dynamic changes of Emodin, Physcion, Emodin-8-O-beta-D-glucopyranoside, Physcion-8-O-beta-D-glucopyranoside and 2,3,5,4'-tetrahydtoxysilbene-2-O-beta-D-glucopyranoside in Polygonum multiflorum during preparation and analyze their changing laws.
Five major constituents before and after preparation were determined by RP-HPLC methods.
The five ingredients decreased significantly after preparation.
The major chemical constituents of Polygonum multiflorum decrease significantly, suggesting the necessarity of prepared Polygonum multiflorum in clinical application worth studying.