Formation of Aspergillus niger-mineral aggregation and characterization of polysaccharide from aggregation
黑曲霉-矿物聚集体的形成及其分泌的多糖特性

Objective] In order to understand the weathering on potassium-bearing mineral by Aspergillus niger,we studied the formation of A.niger-mineral aggregation and polysaccharide in the revolving and fermenting mode and their role in the process of weathering on potassium-bearing mineral.Methods] We used four different media to study the morphology of A.niger-mineral aggregation;ultraviolet-visible spectrum(UV-Vis),fourier transform infrared spectrum(IR),gas chromatography(GC),scanning electron microscopy(SEM)...