[Quality standard of stewed rhizoma polygonati with yellow wine].

Objective: To improve the quality standard of stewed Rhizoma Polygonati with yellow wine.

Methods: On the basis of Chinese Pharmacopoeia 2010, some items were added, which included assay of reducing sugars, water-soluble extracts, acid insoluble ash content and 5-hydroxymethylfurfural.

Results: Reducing sugars was no less than 34.

[Study on the enzyme extraction process of hypericin by pectinase].

Objective: To explore the best enzyme and optimal conditions for extracting Hypericin from Hypericum perforatum.

Methods: Chose the best enzyme from Pectinase, Xylanase, Glucanase, beta-Glucanase and Enzyme (SPE-007A). The effeet of solid-liquid ratio enzyme dosage, PH, temperature and the extraction time were investigated by L9 (3(4)) orthogonal design using extraction rate and the content of Hypericin as assessment index.