In this thesis, the extraction, isolation, purification and structure analysis of the water-soluble polysaccharides from Ginkgo biloba were extensively studied.
The crude polysaccharides of the Ginkgo biloba were extracted by hot water and precipitated by ethanol. The crude polysaccharide was divided into eight fraction GBP50S1, GBP50S2, GBP70S1, GBP70S2, GBP70S3, GBP70S4, GBPBW1 and GBPBS1. The crude polysaccharide purified by ion chromatograph DEAE-Cellulose, and gel permeation chromatograph...