May 2015
Refining the methods of extraction and purification of apigenin from Viola yedoensis makino
In this study, the effects of supercritical CO2 extraction and macroporous adsorbent resin on separation and purification of apigenin were compared. A better separation and purification macroporous adsorbent resin was selected according to static adsorption and desorption results. Silica gel column chromatography and LSA-10 macroporous adsorbent resin performed better in the separation and purification procedure. The...
May 2015
Hypoglycemic activity in diabetic rats of stigmasterol and sitosterol-3-O-β-D-glucopyranoside isolated from Pseuderanthemum palatiferum (Nees) Radlk. leaf extract
Two major compounds, stigmasterol (ST) and sitosterol-3-O-β-D-glucopyranoside (SG) were isolated from Pseuderanthemum palatiferum leaf extract which is used traditionally as an antidiabetic. ST and SG at doses of 0.25 and 0.50 mg/kg were fed to diabetic rats for 21 days, and the fasting blood glucose (FBG) level and biochemical data on day 0, 4, 7, 10, 14, 17 and 21 were determined and compared with the...
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