Six different agro-industrial waste residues (rice straw, rice bran, corn flakes, wheat bran, wheat flakes, and grinded wheat kernel) were procured from the local market. These substrates (10 g) were moistened (1:1) with different moistening agents (distilled water, tap water, mineral salts solution (FeSO4.7H2O 0.02, MgSO4.7H2O 1.0, (NH4)2SO4 4.0, KH2PO4 0.6, K2HPO4 1.4 mg/gds at pH 5), 0.1 N HCl, sodium acetate buffer (pH 5.5), sodium phosphate buffer pH 7.5) and screened for the production of 1,4- - D-glucan glucohydrolase for 96 hours in static cultures. The substrate and moistening agent...

Sixteen different mould cultures viz. Aspergillus, Alternaria, Arthroderma, Trichoderma, Fusarium, Penicillium, Rhizopus and Chochliobolus were isolated from the soil samples collected from different localities of Doha (Qatar) by serial dilution method. The preliminary screening of isolates was done by selecting initial colonies showing relatively bigger zones of starch hydrolysis on nutrient agar medium by pour plate method. The isolates were then subjected to secondary screening by submerged fermentation. The product yield was analyzed in dependence of mycelial morphology, biomass level and...