This paper introduced the biological activities of plant polysaccharide, such as strengthening immunity, antitumour , reducing glycemia, reducing fat in blood, resisting radiate and virus, resisting fatigue and caducity, etc.

Four important procedures for making plant polysaccharide including extraction and isolation, purification, identification were reviewed.

This paper summarized the hypoglycemic and antilipemic activities of 18 kinds of plant polysaccharides studied in China within latest1 0y ears.

Progress on the research of plant polysaccharides;

The plant polysaccharides were highly concerned nowadays.

According to the recent study about hypoglycemic effect of the plant polysaccharides and its mechanisms, this paper indicates that the hypoglycemic effect of the plant polysaccharides is due to five mechanisms, including the plant polysaccharides can reduce hepatic glycogen, promote the utilization of tho blood glucose by the periphery tissue and organs, promote the effect of hypoglycemic hormone.

This paper summarized the progressed studies on the Starch plants and glucide plants and deals with the varieties of the Starch plants,glucide plants and textile plants in our countries.

The extent tallied with the amount of ash alkali in the plant materials.

A laboratory experiment was conducted to explore changes in total amount of soluble Al and form of soluble Al in two types of acid soils,tea garden yellow brown soil and tea garden red soil,incorporated with various plant materials: canola straw,wheat straw,rice straw,corn straw,soybean straw,peanut straw,faba bean straw,Chinese milk vetch shoot and pea straw.