July 2014
Novel human astroviruses (HAstVs) identified recently
Human astrovirus (HAstV) plays an important role in human viral gastroenteritis, especially in young children and the elderly. In recent years, some novel astrovirus strains different from HAstV were reported previously and new subtypes or lineages of HAstV were found. These new strains might be responsible for the acute gastroenteritis in hospital or community, thus should be paid more attention in HAstV surveillance....
July 2014
Characterization of oregano (Origanum vulgare) essential oil and definition of its antimicrobial activity against Listeria monocytogenes and Escherichia coli in vitro system and on foodstuff surfaces
First aim of this research was to characterize oregano (Origanum vulgare) essential oil and the characterization of its minimum inhibitory concentration against the pathogenic species, Listeria monocytogenes and Escherichia coli. Moreover, the oregano essential oil antimicrobial activity was tested against these pathogenic species, inoculated onto wood and stainless steel surface. The GC/MS profile of oregano essential...
July 2014
Molecular serotyping of foot and mouth disease outbreaks in Ethiopia
This study was conducted in five regional states of Ethiopia from January 2011 to March 2012 with the objective of identifying the serotypes of foot and mouth disease by molecular technique in Ethiopia. Epithelial tissue samples were collected from cattle and swine found in the foot and mouth disease outbreak areas of the country and submitted to the National Veterinary Institute, DebreZeit, Ethiopia and World Reference...
July 2014
Evaluation of Drigalski agar supplemented with ceftazidime (2 mg/L) for selective isolation of extended-spectrum beta-lactamase (ESBL) producing Enterobacteria
The purpose of this study was to evaluate the performance of the Drigalski agar supplemented with 2 mg/L of ceftazidime (DC) for selective isolation of expanded-spectrum beta-lactamase (ESBL) producing Enterobacteria in clinical samples. The Drigalski agar supplemented with 2 mg/L of ceftazidime was compared with the chromIDTM ESBL medium (bioMérieux, Marcy l'Etoile, France). Six strains from the collection...
July 2014
Occurrence of Listeria monocytogenes, total coliforms, Escherichia coli, and production and storage processes of raw milk from dairy farms in the state of São Paulo, Brazil
In the present study, the occurrence of Listeria monocytogenes, total coliforms and Escherichia coli in refrigerated raw milk from 75 dairy farms distributed in three regions (São Carlos- A, Pirassununga- B, and Piracicaba- C) of São Paulo State, Brazil was assessed. The production and storage conditions as well as milking procedures of raw milk were also evaluated. The analysis of L. monocytogenes was...
July 2014
Efï¬cacy of Pseudomonas fluorescens on control of chilli fruit rot caused by Colletotrichum capsici
The fungitoxic effects of 10 isolates of Pseudomonas fluorescens from various parts of Tamil nadu were evaluated under in vitro conditions on growth of Colletotrichum capsici, the causal agent of chilli fruit rot. The identity of P. fluorescens was confirmed by DNA sequence analysis of the isolates. P. fluorescens PI-1 was the most effective showing 75.6% inhibition of colony growth with minimum mean mycelial growth...
July 2014
Effect of drying conditions on physicochemical parameters of powdered Prosopis africana condiment fermented with or without consortia
Seeds of African mesquite (Prosopis africana) were purchased from Otukpo market in Benue state of Nigeria. P. africana seeds were precleaned and processed for fermentation. Processed unfermented seeds of P. africana (300 g) were transferred in three earth pots lined with aluminum foil. Mixed Bacillus species (5%) (Bacillus subtilis and Bacillus pumilus) of both standard and test strains were prepared as consortia and...
July 2014
Antibacterial activity and phytochemical screening of extracts of Lippia alba (Mill). NE Brown
The use of natural products as an alternative for treatment and prevention of diseases has been increasing daily. Lippia alba is a shrub widely distributed throughout Brazil and its aqueous extracts, as infusion and decoction made from its leaves, are currently being used in popular medicine. Thus, the objective of the study was to do a phytochemical screening of these solutions as well as evaluate in vitro...
July 2014
Production and partial characterization of glucose oxidase and catalase from xerophytic strain of Aspergillus niger
Six Aspergillus niger strains isolated from semi-desert of Coahuila State (Mexico) were screened for an extracellular catalase (CAT) and glucose oxidase (GOX) production using solid-state and submerged fermentations. The best enzymes producer, A. niger ASPN 1.1, was selected for enzymes production under submerged fermentation condition. The higher activity was observed at 24 and 48 h of submerged fermentation,...
July 2014
Biological characterization and determination of comparative efficacy of an inactivated Newcastle disease virus vaccine prepared from velogenic strain
This study was designed to characterize a field isolate of Newcastle disease virus (NDV) to check its suitability as an inactivated vaccine and to determine the comparative efficacy of this inactivated NDV vaccine with conventional live vaccines, Baby Chick Ranikhet Disease Vaccine (BCRDV, F strain) and Ranikhet Disease Vaccine (RDV, Mukteswar strain). The field isolate of NDV was identified as velogenic strain based on...
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