In this study, attempts were made to immobilize purified exo-inulinase from mutant thermophic Aspergillus tamarii-U4 onto Kaolinite clay by covalent bonding cross-linked with glutaraldehyde an immobilization yield of 66% achieved. The free and immobilized inulinases then characterized characterization the enzymes revealed that temperature pH optima for activity both 65 °C 4.5 respectively. inulinase completely lost its after incubation at 6 h while retained 16.4% under same condition time....

In this study, spores of inulinase-producing thermophilic Aspergillus tamarii were subjected to UV mutagenesis, and colonies obtained screened for inulinase production on inulin-glucose agar. The thermal stability the was also investigated. A mutant strain U4 found produce 2.8 times titre (62.1U/mL) as against wild (22.2U/mL). Inulinase by not be significantly (P≤0.05) affected presence glucose. produced retained 64% its activity after incubation at 65ºC three hours. Solid-state fermentation...

Fermented cassava products like fufu and usi are important staple foods in many African homes. Natural fermentation time is usually long resulting slower acidification inconsistent nutritional composition of which could be overcome with the use starter culture. However, most available starters used for single food uneconomical. This necessitates development a culture multiple related to reduce cost. Hence, this study aimed at screening potential common usi. Fresh, peeled, chipped grated...

Pseudomonas aeruginosa (PA) is an electrogenic bacterium, in which extracellular electron transfer (EET) mediated by microbially-produced phenazines, especially pyocyanin. Increasing EET rate bacteria key for the development of biosensors and bioelectrofermentation processes. In this work, production pyocyanin Nicotinamide Adenine Dinucleotide (NAD) synthetase strain PA-A4 determined microbial fuel cells (MFCs). The MFC potentials correlates with NAD activity production. With fusion combined...

Biofilms are intricate microbial deposits on biotic and abiotic surfaces, with significant medical biotechnological implications. This study explored biofilm formation by Acetobacter aceti ATCC15973, Pseudomonas aeruginosa ATCC9027, Serratia marcescens ATCC14756, Gluconobacter oxydans ATCC19357, Rhodobacter sphaeroides ATCC17023, Bacillus subtilis ATCC6633 wood, glass, steel, PVC, PET surfaces using qualitative methods. Effects of electrical stimulation (6V, 4.5A), magnetic fields (1000 G),...

Abstract Background The emergence of antibiotic-resistant microorganisms has been largely associated with drug misuse, abuse, and indiscriminate disposal drugs; however, the interactions between some environmental factors antibiotic resistance by have understudied. In this study, effects sound electromagnetic field on growth susceptibility selected to antibiotics were investigated. Results Microorganisms used include Gluconobacter oxydans ATCC 19,357, Rhodobacter sphaeroides 17,023,...

In this study fucoidanase produced by terrestrial Apsergillus flavus FS018 was purified and characterized. The pure enzyme found to have an optimum activity of 20.8U/mL at 55 oC 17.2U/mL pH 5.0. Furthermore, the retained 96% its after 8 hours incubation oC. Metal ions such Mg2+ Ca2+ were slightly enhance while Na+, K+ had inhibitory effect on activity. be active towards fucoidan consisting α-1→4 α-1→3 glycoside bonds in main chains also galactofucans group. Estimation kinetic parameters...

Fermented cassava products like fufu and usi are important staple foods in many African homes. Natural fermentation time is usually long resulting slower acidification inconsistent nutritional composition of which could be overcome with the use starter culture. However, most available starters used for single food uneconomical. This necessitates development a culture multiple related to reduce cost. Hence, this study aimed at screening potential common usi.Fresh, peeled, chipped grated...

This study aimed at assessing the effects of Bio-electrochemical system on yield thermostable lipase produced by Bacillus licheniformis S1S2, pulmilus S1E23, sp. S1E27, and Aeribacillus S1E29. With physiological conditioning lipolytic activities, comparative production selected isolates was carried using submerged fermentation electro-fermentation methods. An optimum 95.1± 0.003 U/ ml, 128± 0.001 U/ml, 110.7± ml 122.7± 0.002 U/ml B. S1E29; respectively, under conventional process. However,...

High morbidity and mortality rate associated with pneumococcal infection globally is of major concern most especially among infant. This burden equally worsened by multidrug resistance strains due to indiscriminate consumption antibiotics. Hence, need for constant search cheap effective bioactive compounds as alternative antimicrobials the treatment infection. Bioactive compound profiling in-vitro antibacterial activity ginger methanol extract against two predominant agents; Streptococcus...