Preparation of pullulanase/Cu(PO) hybrid nanoflower and its catalytic performance as an immobilized enzyme.

A commercially important pullulanase enzyme that hydrolyzes α-1,6 glycosidic linkages in pullulan was immobilized as pullulanase/Cu(PO) hybrid nanoflower. Free and immobilized enzymes both showed the highest activity at 25 °C. The optimum pH of the free enzyme was 4.

Investigation of Physicochemical Characteristics of Aspergillus niger Biomass and Examination of Its Ability to Separate Butyl Acetate Isomers.

Aspergillus niger is a species of fungus that is widely found in natural ecosystems and has an important role in various industrial fields and is readily available. To study the adhesion of microbial cells to solid substrates and to improve their properties, physicochemical characterization of microorganisms is extremely important. For this purpose, in this study, the surface properties of A.