April 2014
Fluorescent pseudomonads: Milestones achieved in the last two decades
Environmental concerns have led to the need of sustainable use of natural resources. The conventional agriculture practice caused considerable pollution and unavoidable impacts on soil, water, animal as well as human health. Fluorescent pseudomonads, a group of root-associated bacteria that can colonize the roots of crop plants and produce antifungal metabolites represent a real alternative to the application of...
April 2014
Beneficial properties, colonization, establishment and molecular diversity of endophytic bacteria in legumes and non legumes
Different genera of bacteria are present as endophytic in roots and nodules of legumes and roots of non legumes grown in different parts of the world. A number of these endophytic inhabitants vary from few to large numbers. Predominantly, endophytes belongs to three major phyla, Actinobacteria, Proteobacteria and Firmicutes and includes members of Streptobyces, Azocareus, Gluconobacter, Pseudomonas, Serratia,...
April 2014
Screening and evaluation of Lactobacillus spp. for the development of potential probiotics
Probiotics are live microbial food ingredients that have beneficial effects on consumption. The present study searched fermented food samples for potential lactobacilli that could be used for the development of novel gastrointestinal probiotics. Fifty five (55) isolates were obtained including 46 bacterial and 9 yeast isolates. On the basis of morphological and biochemical properties, 21 were identified as Lactobacillus...
April 2014
Prevalence of metallo-β-lactamases producers among carbapenem-resistant Acinetobacter baumannii strains isolated from diabetic foot ulcers
The aim of this work was to detect the prevalence of metallo-β-lactamases (MBL) producers among carbapenem-resistant Acinetobacter baumannii strains isolated from diabetic foot ulcers. Out of 290 samples of diabetic foot ulcers, 99 strains of A. baumannii (33%) were isolated and identified by conventional culture methods. Antibiotic sensitivity pattern of the isolated A. baumanni strains was done by disc diffusion...
April 2014
Attempt of simulation of models to predict the disinfection efficacy of an UV disinfection reactor and kinetic study of inactivation of selected bacteria of Pseudomonas aeruginosa in a laboratory UV device
The aims of this paper were to propose a modeling system of water UV disinfection, establish the influence of UV doses on the kinetics of disinfection, study UV-resistant strains of Pseudomonas aeruginosa, and improve the performances of this multipart process. The UV disinfection should inactivate pathogenic microorganisms and improve the hygienic quality of water. A comprehensive treatment in considering the...
April 2014
Growth performance, carcass characteristics and meat quality of Hanwoo steers fed fermented liquid whey inoculated with lactic acid bacteria
The present study was conducted to evaluate the effects of liquid whey fermented with lactic acid bacteria on the growth performance, carcass characteristics, meat composition, fatty acid profile and meat oxidative stability of Korean Hanwoo steers. Twenty-four homogenous Hanwoo steers (22-months-old) were randomly distributed into two dietary treatments with four replications of three steers per treatments. Basal diet...
April 2014
Recombinant expression, purification of L-asparaginase-II from thermotolerant E. Coli strain and evaluation of its antiproliferative activity
Repeated use of L-asparaginase II enzyme, in the treatment of acute lymphoblastic leukaemia, is commonly needed because of the enzyme’s instability and relatively short half-life which leads to more serious side effects on patients. In the present study, we report on the cloning and expression of L-asparaginase from a thermotolerant strain of Escherichia coli (KH027) which was isolated from camel manure and could...
April 2014
Environmental impact on postoperative wound infections in a privately owned hospital in Ghana
Edwin Cade Hospital of Anglogold, Ashanti, had been experiencing high levels of surgical site infections, but the causes of these were unknown. This study aimed to investigate environmental contamination and postoperative wound infections in the hospital. Wound samples were collected from infected surgical sites and also environments of operating theatre and the surgical wards and cultured for bacteria. Growths on...
April 2014
Biochemical and molecular identification of enteroaggregative Escherichia coli associated with childhood diarrhea and antimicrobial susceptibility profile of the isolates in Egypt
Molecular identification and antimicrobial susceptibility of enteroaggregative Escherichia coli (EAEC) associated with childhood diarrhea was done out in Egypt. The usefulness of quantitative biofilm assay in detection of EAEC was compared with multiplex polymerase chain reaction (PCR). One hundred and fifty cases of childhood diarrhea were divided into three groups; 50 cases of acute diarrhea (group I), 50 cases of...
April 2014
Microbiological assessment of kunun-zaki marketedin Abuja Municipal Area Council (AMAC) in The Federal Capital Territory (FCT), Nigeria
Forty-one (29) kunun-zaki samples were obtained as freshly formulated beverages from different local hawkers in 10 different locations in Abuja Municipal Area Council (AMAC) of the Federal Capital Territory (FCT) Abuja, Nigeria. The samples were evaluated for bacterial loads, isolation and identification of microorganisms present using spread plate agar dilution method. Bacterial loads ranged from 0.0 to 2.0 × 108...
April 2014
Preparation and use of oil formulations of Beauveria bassiana and Metarhizium anisopliae against Spodoptera litura larvae
In vitro, the compatibility of eight vegetable oils, used as components in formulation, was studied in conidia of entomopathogenic fungi, Beauveria bassiana and Metarhizium anisopliae, based in three parameters that are been evaluated: germination rate, vegetative growth and conidiogenesis. Almond oil and gingelly oils at 1, 2 and 3% concentrations showed compatibility with B. bassiana as well as M. anisopliae. Mustard...
April 2014
Isolation of Lactobacillus strains with probiotic potential from camel’s milk
The study aimed to isolate and evaluate the probiotic potential of Lactobacillus species from fresh and fermented camel’s milk samples. Isolates were identified morphologically and biochemically. Biochemical features investigated included temperatures, pH and NaCl concentrations effects on growth, survival in simulated gastrointestinal tract conditions, bacteriocin like activity and antibiotic resistance of the...
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