[Study on Deproteinization of Polysaccharides from Dioscorea nipponica].

Objective: To screen the optimum method for deproteination of Dioscorea nipponica polysaccharides.

Methods: The ratio of protein removing and polysaccharides remaining were used as indicator,four deproteination methods were evaluated.

Results: PapainSevage method was the best one, in which the deproteination rate was 91.

[Study on the characteristic of assimilating nitrogenous phosphorous fertilizer and the accumulation disciplinarian of total tanshinons of Salvia miltiorrhiza].

Objective: To confirm the amount of fertilizer and the ration of fertilizer.

Method: Through the experiment of planting Salvia miltiorrhiza in pot and in field were carried out.

Result: When N:P = 1:1, The production was 1.