November 2013
Antibacterial and antioxidant activities of bilberry (Vaccinium myrtillus L.) in vitro
Antibacterial and antioxidant activity, total phenolic and flavonoid concentrations of water, ethanol and ethyl acetate extract of fruits and leaves of Vaccinium myrtillus L. were studied. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) have been determined. Testing was performed on 30 clinical isolates, including strains of Escherichia coli, Enterococcus...
November 2013
Development of anaerobic consortia and its invitro evaluation for biomethanation potential of coffee processing wastes
An anaerobic consortia was prepared by using Clostridium strains already screened for biocatalytic ability to degrade cellulose, pectin and tannins together with Methanosarcina sp. Among the two inoculum sources studied, the reactor having anaerobic consortium could ferment coffee pulp waste (CPW) and coffee processing waste water (CPWW) leading to 67% soild removal, 62.27% pectin, 27.4% tannins, 63.52% cellulose and...
November 2013
Soil-transmitted helminth infections among school children in rural communities of Moro Local Government Area, Kwara State, Nigeria
We investigated stool samples of primary school pupils in four rural communities of Moro Local Government Area of Kwara State for helminthic intestinal parasites and its intensity. Four hundred and thirteen (413) pupils submitted their samples for examination. The samples were examined by wet preparation, formol ether concentration methods and Stoll’s technique to estimate the worm burden of positive stool...
November 2013
Microbacterium arborescens AGSB sp. nov., isolated from the rhizosphere of sand dune plant, Ipomoea pes caprae
Phenotypic and phylogenetic studies were performed for the facultative alkalophile from the rhizosphere of Ipomoea pes caprae, a plant growing on coastal sand dunes. The isolate was Gram positive and showed optimum growth at pH 10.5. Chemotaxonomic analysis revealed that the isolate contained type B1 peptidoglycans with L-lysine as the diamino acid; rhamnose and galactose were the cell wall sugars and belonged...
November 2013
Characterization and propensity of white spot syndrome virus extracted from imported specific pathogen free (SPF) pacific Litopenaeus vannamei brooders progeny by performing SF9 cell line culture
Shrimp viral diseases have caused severe production and economic losses in the past two decades. A complete understanding of shrimp viruses is dependent upon the development of laboratory techniques for the maintenance and culturing of these viruses and host cells. This investigation was done to characterize the cell line culture from specific pathogen free Litopenaeus vannamei and its susceptibility to revise the...
November 2013
Optimization of process parameters for α-amylase production under solid-state fermentation by Bacillus Cereus MTCC 10202
An α-amylase producing bacterial strain was isolated from sago factory effluent discharged soil and identified as Bacillus cereus. Production of extracellular α-amylase by B. cereus was studied in solid-state fermentation. Different substrates like wheat bran, maize bran, corn bran, millet bran, rice bran, greengram bran, blackgram bran, cassava peel powder, cotton seed oil cake, coconut oil cake, sesame oil...
November 2013
Microbial diversity and performance of an innovative micro-aerobic bioreactor
The treatment performance of two parallel continuous single stage activated sludge bioreactor: an aerobic bioreactor (ABR) operated at dissolved oxygen (DO) levels of 3-4 mg/L, and an innovative micro-aerobic bioreactor (MABR) operated at DO levels of 0.4-0.8 mg/L and the microbial diversity of MABR was investigated and compared. Under the similar conditions, at a hydraulic time (HRT) of 25 h, an organic loading rate...
November 2013
Effects of aromatic amino acids, phenylacetate and phenylpropionate on fermentation of xylan by species of rumen anaerobic bacteria
This study determined the effects of aromatic amino acids (AA) and phenyl acids (phenylacetic acid and phenylpropionic acid) on fermentation of xylan by selected rumen bacteria. The ruminal bacteria were grown in a defined medium containing oat spelts xylan as the sole energy source, plus one of the following N sources: ammonia (no AA); ammonia plus a complete mixture of 20 AA commonly found in protein (CAA); ammonia...
November 2013
Phenotypic screening of metallo-β-lactamase in multi-drug-resistant Pseudomonas aeruginosa using a combined disk diffusion method
Clinical utilization of carbapenems remains under threat with the emergence of acquired carbapenemase-producing bacteria, particularly metallo-β-lactamases (MBL). Pseudomonas aeruginosa which is an important opportunistic pathogen causing nosocomial infections is potentially resistant to different broad-spectrum antibiotics due to its ability to produce metallo-β-lactamase (MBL). In the present 1 year study,...
November 2013
São Paulo Zoo composting as a source of bacteria with bioremediation potential
As the world population increases, the need for energy resources increases and for decades, petroleum has sustained this demand. Oil spill during petroleum extraction and processing has a negative impact on the environment. Methods that can decrease the impact of xenobiotic compounds on the environment have been developed. Among many bioremediation methods described, microbial remediation is of great importance. Our...
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