ABSTRACT
ObjectiveTo study the best extractive process for Vaccinium Fragile Franch. Methods Single factor and orthogonal experiments were designed to determine the extractive rate as the index of evaluation and to optimize the extraction technology. ResultsThe experiments showed that adding 9 times of 70％ methanol, refluxing for 2 times, each times 2 hours at the 65℃C was the best extractive process.ConclusionThe process was stable and reasonable, which formed the scientific and reasonable basis for developing the active parts from Vaccinium Fragile Franch.
ABSTRACT
This paper summarized the recent researches of chemistry compounds of Luoxiao and pointed out that Oxyria digyna (L.) Hill and Oxyria sinensis Hemsl.Flavonoid were the main components of it, with Flavonoid compounds had extensive pharmacological activity.
ABSTRACT
Polygonum bistorta L.in China was used as traditional Chinese medicine.The chemical constituents and biological activity studies on this species were summarized and reviewed.
