African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5188

Table of Content: 7 December, 2016; 10(45)

December 2016

Bacteriocins of Gram-positive bacteria: Features and biotherapeutic approach

Bacteriocins are potent antimicrobial peptides produced by every bacterial and archeal species reported to date. The most studied are bacteriocins produced by lactic acid bacteria (LAB) and many species of Bacillus. Knowledge on the classification, biosynthesis and transport of these peptides is changing continually because the discovery and characterization of new bacteriocins increases, thus, the research reports...

Author(s): David Francisco Lafuente-Rincón, Tania Elizabeth Velásquez Chávez and  Norma M. De la Fuente-Salcido

December 2016

Molecular characterization of local strains of Bacillus thuringiensis in the North of Algeria

The analysis of soil samples taken from orange groves located in four cities of Northern Algeria allowed the isolation and identification of 24 strains belonging to the group Bacillus cereus, based on their physiological, biochemical and molecular characters investigated. They were divided as follow: 12 strains of Bacillus thuringiensis, 1 strain of Bacillus pumilis, 4 strains of Bacillus cereus, 5 strains of Bacillus...

Author(s): Kebdani M., Mahdjoubi M., Cherif A., Gaouar B. N. and Rebiahi S. A.

December 2016

Escherichia coli O157, Staphylococcus aureus and coliforms in crude and processed bovine milk marketed

Fifty-five (55) samples from five municipalities in the Recôncavo from Bahia region were analyzed between May and July 2015 to evaluate the sanitary quality and the presence of pathogens of crude and processed bovine milk samples. Psichrotrophic, mesophilic and thermophile rates and the count of Escherichia coli, E. coli O157: H7 Staphylococcus aureus and Listeria monocytogenes were done by microbiological methods...

Author(s): Santos M. L., Barros L. S. S., Silva I. M. M., Andrade M. V. and Lima D. V.

December 2016

Rhizobia isolation and selection for serradella (Ornithopus micranthus) in Southern Brazil

ability to associate symbiotically with rhizobia. The objective of this study was to isolate, authenticate and select effective rhizobia obtained from native serradella (Ornithopus micranthus) to reduce the need for mineral fertilizer. Nodules, roots of serradella and rhizosphere soil samples were collected in seven municipalities from Rio Grande do Sul and Santa Catarina states. Bacterial colonies were isolated and...

Author(s): Rafael Goulart Machado, Enilson Luiz Saccol De Sá, Suélen Oldra, Murilo Dalla Costa, Gilberto Dall´Agnol, Neemias Da Silva Santos and William Rosa Da Silva

December 2016

Optimization of parameters to increase the xylose reductase production from Candida tropicalis strain LY15 using corn cob as hemicellulose waste substrates

Xylose reductase (XR) is a key enzyme in order to obtain xylitol from xylose. It has vast applications in biotechnology including xylitol production. The present study aimed to estimate and characterize XR from Candida tropicalis strain LY15. C. tropicalis strain LY15 showed xylose utilization ability and xylose reductase activity after 48 h of incubation at pH 6.5, incubation temperature 28°C and rotation speed 140...

Author(s): Kaliyan Barathikannan, Ameer Khusro and Agastian Paul

December 2016

Effects of acidification on the extension of shelf life of Japanese wet-type noodles (woo-long noodle)

Noodles are one of the most important foods worldwide; various methods have been reported to extend their shelf life. In this study, the effects of dipping noodles in various concentrations of acidulant solutions (organic acids) on the shelf life of the noodles were evaluated. The results showed that the growth of the tested microorganisms, that is, Escherichia coli, Staphylococcus aureus and Bacillus cereus, was...

Author(s): Hsueh-Liang Lin#, Der-Sheng Chen#, Chin-Hung Tsai and Shie-Jea Lin

December 2016

Potential of certain cultivars and resistance inducers to control gray mould (Botrytis cinerea) of pepper (Capsicum annuum L.)

Four different highly economic value pepper cultivars Trezaa, Emberu, Mazurka and Taranto usually grown in Egypt were used to evaluate the efficacy of certain resistance inducers to enhance resistance of pepper fruits against gray mould fungus. Pathogenicity tests with Botrytis cinerea (BC-3 isolate) revealed that cv. Mazurka (Red Colour) was most tolerant and exhibited 40.15% rot severity, while cv. Emberu (Yellow...

Author(s): A. Kamara, E. El-Argawy, A. El. Korany and G. Amer