The Hydrolysis of α-d-Glucosides by Amyloglucosidase from Aspergillus niger

High-potency Amyloglucosidase-producing Mold of the Aspergillus Niger Group.

Biosorption of Pentachlorophenol from Aqueous Solutions by Aspergillus Niger Biomass

Background: This study aimed to investigate the biosorption of pentachlorophenol on Aspergillus niger biomass as a method for removal of pentachlorophenol from aqueous solutions. Methods: Modified A. niger biomass with NaOH was used to absorb the pentachlorophenol. The impacts of various experimental parameters like primary pentachlorophenol concentration, pH of the solution, contact time, a...

Hydrolysis of raw tuber starches by amylase of Aspergillus niger AM07 isolated from the soil

Eight Aspergillus niger strains which produced strong starch degrading amylase were isolated from the soil using a medium containing Remazol Brilliant Blue (RBB) starch as substrate. Amylase production was detected by the disappearance of the blue colour around the colony. Among the isolates, A. niger AM07 produced the largest clear zone (7.0mm) on Remazol Brilliant Blue (RBB) agar plate and al...

pH-dependence of the fast step of maltose hydrolysis catalysed by glucoamylase G1 from Aspergillus niger.

The presteady-state kinetic parameters of the interaction ofwild-type glucoamylase from Aspergillus niger (EC 3.2.1.3)with maltose were obtained and analysed in the pH range 3-7 withintervals of 0.25 pH units. In all cases the following three-step reaction scheme was found to apply. [Equation: see text]. The general result of the analysis of the presteady-state kinetics is that glucoamylase G1 ...

The action of an amyloglucosidase of Aspergillus niger on starch and malto-oligosaccharides.

Earlier reports from a number of laboratories (l-3) have shown that Aspergillus niger produces several enzymes with ability to hydrolyze the a-~-(1 ---f 4) glucosidic linkages in starch and maltooligosaccharides. Important members of this group include a-amylase, amyloglucosidase and maltase. Within recent years there has been considerable interest in the amyloglucosidase group of enzymes since...