Identification of the Pullulanase Encoding Gene amyX of Bacillus thuringiensis and Charaterization of the Recombinant Enzyme;

Study on the degradation of citric acid fermentation residual sugar by pullulanase;

Research of pullulanase treatment on promotive resistant starch content effects;

Protoplast preparation and induced screening of alkaline pullulanase producing bacterium;

Studies on screening and breeding of alkaline pullulanase producing bacterium and regulation of nutrition;

Pullulan,a kind of exopolysaccharides produced by Aureobasidium pullulans,is widely used in food industry and Pharmaceutical industry.

Objective To screen a strain with high production of pullulan,high utilization of sugars and low secretion of pigment from As3.

Objective To obtain mutant strains of high production of pullulan and low secretion of pigment and optimize fermentation process of pullulan.

The crystal structural transformation of Prussian blue modified electrode during the color-changed reaction were studied by using in situ X-ray diffraction electrochemical subtraction technique.