Study On The Extraction And Application Of Chitosan From Tenebrior Molitor Linanus

This dissertation test mainly using acid alkali extracted chitosan from Tenebrio molitor L. Pupae, and determined the nature and fix quantify ration analyze chitosan. Results indicated decline yellow piece or powder chitin , chitosan(weak white,deacetylation63.8%,low viscosity),applying once correctitude design on the base.At the same alkali density, different acid density(X1), time (X2) , temperature (X3) infect rudimental ash, the result prove effect ash rudiment factor: acid treating time and treat temperature reciprocity, acid density and treat time reciprocity. At the same acid density, different alkali density(X1), time (X2) , temperature (X3),the major factor of affecting rudimental protein are alkali density,alkali density and treat time reciprocity, they were prominent level(l%). Two equations regression standardized residual were normal school.Chitosan was used to clarify strawberry syrup, grape syrup, at chitosan density 0.045%, the syrup became clear in 10 minutes; chitosan density 0.050%,0.045%,0.030% get to optimal effect each after lh,5h,12h. The results indicated that the chitosan was a good clariflcant. Chitosan has no effect on syrups' sugar and acid density. The bigger density, the shorter time syrup became clear. The test that kept chestnut fresh, chitosan could improve chestnut's water content and the rate of sound nut.The improvement rate of sound nut was up to 67.07%.The result indicated chitosan had obvious effect on chestnut during storing.