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Purification and characterization of cellulases produced by two Bacillus strains.
Cellulases produced by two Bacillus strains, CH43 and HR68, isolated from hot springs in Zimbabwe, were purified to homogeneity from culture supernatants, showing 100% homology with that of endoglucanases from Bacillus subtilis belonging to glycoside hydrolase family five. Expand
Novel alkaline proteases from alkaliphilic bacteria grown on chicken feather
Two alkaline protease producing alkaliphilic bacterial strains, designated as AL-20 and AL-89, were isolated from a naturally occurring alkaline habitat and the protease it produce offers an interesting potential for the enzymatic and/or microbiological hydrolysis of feather to be used as animal feed supplement. Expand
Impact of food industrial waste on anaerobic co-digestion of sewage sludge and pig manure.
The performance of an anaerobic digestion process is much dependent on the type and the composition of the material to be digested, and when the fraction of starch-rich waste was increased, the result was a more sensitive process, with process overload occurring at a lower organic loading rate (OLR). Expand
Evaluation of parameters for monitoring an anaerobic co-digestion process
A minor change in the amount of carbohydrates in the substrate had drastic effects on the buffering effect of the system, and pH was compared with alkalinity, gas production rate, gas composition and the concentration of volatile fatty acids (VFA). Expand
Effect of particle size on biogas yield from sisal fibre waste
The degradation and biogas production potential of sisal fibre waste could be significantly increased by pre-treatment for reduction of particle size. Batch-wise anaerobic digestion of sisal fibreExpand
Anaerobic digestion of lipid-rich waste - Effects of lipid concentration
The influence of lipid concentration on hydrolysis and biomethanation of a lipid-rich (triolein) model waste was evaluated in batch. The effect of increasing the concentration of lipid from 5% to 47%Expand
Microbial BOD sensors for wastewater analysis.
BOD sensors constructed on the biofilm configuration are discussed regarding performance characteristics like linearity, response time, precision, agreement between BOD values obtained from the biosensors and the conventional 5-days test, as well as toxic resistance to various compounds and operational stability. Expand
Evaluation of new methods for the monitoring of alkalinity, dissolved hydrogen and the microbial community in anaerobic digestion.
New methods for spectrophotometric alkalinity measurement, dissolved hydrogen monitoring and for obtaining a fingerprint of the microbial community were evaluated as tools for process monitoring inExpand
Smart polymers: Physical forms and bioengineering applications
Smart polymers (SP) have become one important class of polymers and their applications have been increasing significantly. Last two to three decades have witnessed explosive growth in the subject. SPExpand
Anaerobic batch co-digestion of sisal pulp and fish wastes.
Batchwise digestion of sisal pulp and fish waste was studied both with the wastes separately and with mixtures in various proportions, showing an increase in the methane yield as compared to that obtained from the digestion of pure fractions at 5% TS. Expand