New Method for Extracting and Purifying Dihydromyricetin from Ampelopsis grossedentata.

ABSTRACT: Dihydromyricetin (DMY) is a kind of flavone. It has a variety of physiological effects, and its content in Ampelopsis grossedentata is as high as 35%. There are two shortcomings in the traditional batch extraction process commonly used in a laboratory: long extraction time and low extraction rate. In this study, a new chelating extraction method was proposed, that is, Zn²⁺ was introduced into the extraction and purification process to chelate with DMY, and the yield and purity were taken as evaluation indices for a comparative study with the traditional batch extraction method. In addition, ¹H NMR, single-crystal X-ray diffraction, IR, and UV were used to analyze the product structure; thermogravimetry and differential thermal analysis was utilized to examine t

SUBMITTER: Hu H 

PROVIDER: S-EPMC7301542 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature