Abbreviation: Afr. J. Microbiol. Res.
Start Year: 2007
Page 1 of 220, showing 20 records out of 4400 total, starting on record 1, ending on 20
DOI: 10.5897/AJMR2014.6999[Article Number: 9EFAF0258262]
What is currently raised as a new approach in the management of plant diseases is the development and formulation of plant based biopesticides. The objective of present study is to evaluate the antibacterial activity of aqueous extracts of twelve species belonging to seven families collected from the Northeast of Brazil against four economically important phytopathogenic bacteria. Antibacterial activities of the aqueous... Read more.
DOI: 10.5897/AJMR2016.7925[Article Number: 14DC5CC58264]
This study seeks to assess the bacteriological, physicochemical and some trace metals levels in water samples from seven boreholes and a hand-dug well within communities of Golden Star Wassa Mine Limited in Ghana. Five of the sampling sites were slightly acidic and were below the lower limit of the acceptable World Health Organization (WHO) and Ghana Standard Authority (GSA) permissible guidelines for pH. However,... Read more.
DOI: 10.5897/AJMR2015.7892[Article Number: A888BE258270]
Staphylococcus aureus toxins represent a public health challenge all over the world. This study aims to analyze the prevalence of genes encoding the staphylococcal leukocidins and their correlation with antimicrobial susceptibility and the source of isolation. For this purpose, the susceptibility of 75 S. aureus isolates to 12 antimicrobial agents was investigated. The leukocidins genes (lukD, lukE, lukF and lukS) were... Read more.
DOI: 10.5897/AJMR2015.7896[Article Number: BA62F0F58272]
Bauhinia monandra leaves are well known hypoglycemic agent in Brazilian popular medicine from which a galactose specific lectin (BmoLL) has been purified in milligram quantities. In this work, the antimicrobial activity of endophytes isolated from B. monandra leaves and the ability of BmoLL to agglutinate the microorganisms were evaluated. After disinfection, leaves of B. monandra were fragmented and distributed in... Read more.
DOI: 10.5897/AJMR2015.7949[Article Number: 4AC8AAA58200]
The present study was undertaken to investigate the microbiological quality of milk and artisanal dairy products sold in Ouagadougou markets. Forty-five (45) samples of milk and dairy products including raw milk, sour milk and yoghurt were collected and analyzed for aerobic mesophilic bacteria (AMB), total coliforms (TC), thermotolerant coliforms (TTC), Staphylococcus aureus (S. aureus), lactic acid bacteria (LAB) and... Read more.
DOI: 10.5897/AJMR2016.7955[Article Number: 42E741E58206]
The aim of this study was to investigate the microbial quality of eggs produced by informal farms and sold in most Abidjan’s markets. Thus, a preliminary investigation was conducted to evaluate the frequency of eggs consumption by the population of the study area (Abidjan). After this investigation, an analysis of the eggs microbiological quality was performed both on the shell and the eatable (egg yolk) part. The... Read more.
DOI: 10.5897/AJMR2016.7845[Article Number: 15B2F2D58212]
The counts and identification of lactic acid bacteria isolated from the ferment “kpètè-kpètè” of the traditional beer (tchoukoutou) collected from nine large producing cities of Benin were carried out. Out of 209 strains isolated, 135 strains were purified, identified and were member of four different types based on their morphological traits, biochemical tests, API 50CH gallery... Read more.
DOI: 10.5897/AJMR2016.7924[Article Number: F9383E158218]
Production of tannase by Aspergillus species UCP1284 was studied using solid state fermentation and cashew bagasse as substrate. Amount of 35 strains of fungi species isolated from soil of Caatinga were used for qualitative selection of strains with potential for production of tannase. Through the selected fungi, a complex study was achieved about the influence of the variables: substrate amount, initial moisture... Read more.
DOI: 10.5897/AJMR2015.7943[Article Number: CA1238258220]
Enterococci are a common cause of nosocomial infection and prevalence of antibiotic resistance among them is increasing. This study aimed to identify the prevalence of high level aminoglycoside resistant enterococci at Alexandria Main University Hospital. A total of 133 enterococci strains isolated from clinical specimens were all subjected to Bauer Kirby disc diffusion to detect antibiotic susceptibility pattern. High... Read more.
DOI: 10.5897/AJMR2016.7958[Article Number: D820D6E58168]
Trichoderma species usually produce chitinases and glucanases with inhibitory effects on several phytopathogens. In this work, the effects of such enzymes activities were evaluated on Phytophthora parasitica and Fusarium oxysporum. Enriched enzyme extracts were obtained from Trichoderma asperellum, Trichoderma virens, Trichoderma gamsii and Trichoderma logibrachiatum, which were grown on supplemented media with chitin... Read more.
DOI: 10.5897/AJMR2015.7714[Article Number: D6694A058150]
Growth promotion and disease control by rhizobacteria are complex interrelated processes that involve direct and indirect mechanisms. The mechanisms include synthesis of some metabolites (auxin, cytokinin and gibberellins), induction of 1-aminocyclopropane-1-carboxylate (ACC) deaminase, production of siderophore, antibiotics, hydrogen cyanide hydrogen cyanide (HCN) and volatile compounds. They also include mineral... Read more.
DOI: 10.5897/AJMR2016.7956[Article Number: DB8ECAE58164]
Asymptomatic bacteriuria, a form of urinary tract infections that involves isolation of a specified quantitative count of bacteria in an appropriately collected urine specimen obtained from a person without symptoms or signs referable to urinary infection is common, but the prevalence in population varies widely with age, sex and the presence of genitourinary abnormalities. This study therefore aimed at investigating... Read more.
DOI: 10.5897/AJMR2016.7917[Article Number: 7B52CDC58166]
Safe food handling in school canteens is an important practice to protect the students from food borne illnesses. The main purpose of this study was to present an overview of food safety knowledge and hygienic practices in selected schools in Al Ain city in the Emirate of Abu Dhabi, United Arab Emirates. The study consisted of three parts. The first part tackled students’ and teachers’ behavior during... Read more.
DOI: 10.5897/AJMR2015.7784[Article Number: DAECED558170]
The aim of this research was to evaluate the effect of bacteriophage P22 on Salmonella Typhimurium in artificially inoculated tomato surface, under simulating condition of storage (10°C) and marketing (20°C) during seven days. First, we demonstrated the in vitro ability of phage P22 to reduce host population density to undetectable levels two hours after inoculation; however, S. Typhimurium was able to regrow up... Read more.
DOI: 10.5897/AJMR2016.7627[Article Number: 0ACAF2358006]
A great diversity of species of microorganisms are present in the rumen environmental with specific functions in the degradation of carbohydrates, protein and lipids. However, the knowledge of the interactions between the different species of microorganisms in the rumen ecosystem and their specific substrates were used to improve nutritional management and can increase production of meat or milk. A balanced nutritional... Read more.
DOI: 10.5897/AJMR2015.7693[Article Number: 3198D7258012]
Helicobactor pylori (H. pylori) has been strongly associated with gastritis, peptic ulcer and is linked to an increased risk of gastric cancer. The cytotoxin-associated gene product (cagA) and the vacuolating cytotoxin (vacA) have been implicated as two major virulence factors of H. pylori. Since there is an increasing evidence that genetic variability of H. pylori may have clinical importance, we aimed to evaluate... Read more.
DOI: 10.5897/AJMR2015.7932[Article Number: CA915FB58020]
The pathogenic potential of Pseudomonas aeruginosa comes from the expression of many secreted and cell surface virulence factors, and its biofilm formation. This study aimed to investigate and compare the virulence profiles of 123 clinical and environmental P. aeruginosa isolated in Meknes (Morocco). Using suitable culture media, phenotypic screening evaluated the production of β-haemolysin, caseinase, lipase,... Read more.
DOI: 10.5897/AJMR2015.7859[Article Number: 53494B558022]
Methicillin-resistant Staphylococcus aureus is a major cause of infection worldwide. Production of β-lactamases and penicillin-binding protein 2a are the two main mechanisms of resistance in S. aureus. The aim of this work was to study the mechanisms of resistance produced by the S. aureus strain isolated from Oreochromis niloticus (Nile tilapia) during an outbreak. β-Lactamases production was detected by... Read more.
DOI: 10.5897/AJMR2016.7954[Article Number: 13142B457910]
This investigation deals with optimizing the cellulase producing bacterial isolates for better enzyme yield. Cellulose degrading bacteria were isolated from garden soil (Aurangabad, MS, India). Amongst 40 different bacterial isolates, two of the bacterial isolates, 2b and 38b, were processed for preliminary identification with morphological, cultural and biochemical characterization. Based on these studies, strain 2b... Read more.
DOI: 10.5897/AJMR2015.7923[Article Number: 3B6CD4257913]
Little information is available on the diversity and distribution of resistance and virulence factors in Enterococci isolated from camel milk. In this study, 33 samples of camel’s milk collected from the south west region of Algeria were analyzed for the presence of Enterococcus spp. Twenty three (23) enterococcal isolates were recovered. These strains were identified by the API 20 STREP and the sodium dodecyl... Read more.
Page 1 of 220, showing 20 records out of 4400 total, starting on record 1, ending on 20