Study on the Extraction and Methylation of Pachymaran
Abstract: With the assistance of ultrasound, polysaccharide was extracted from poria cocos wolf and the extraction technologies such as concentration of NaOH, extraction time and the ratio of material to liquid, etc were studied. The methyl pachymaran was prepared using Haworth method and the derivative was characterized by infrared spectroscopy. In vitro bile acid binding activity of methyl pachymaran was examined, showing lower than native glucan.