propolis has traditionally been used in curing infections and healing wounds and burns. current researches have shown that propolis has antibacterial, antifungal and antiviral actions however, the pharmacological activity of propolis is highly variable depending on its geographic origin. there have been few studies on the effects of iranian propolis on the oral microorganisms. in this in-vitro ...

The aim of this study was to analyze the antibacterial activity of hen egg white cystatin against selected Escherichia coli strains. We used a monomeric solution of hen egg white cystatin in bovine serum albumin (BSA) with added phosphate buffered saline (PBS), and three test strains: Escherichia coli ATCC 23811, Escherichia coli ATCC 8739 and Escherichia coli ATCC 25922. The effect of cystatin...

Two incubation runs were carried out with a Rusitec system to investigate the effects of 2 exogenous pure cellulases on ruminal microbial growth and fermentation of a 70:30 grass hay:concentrate (DM basis) substrate. The substrate was sprayed with buffer (control; pH = 6.5), a cellulase from Trichoderma longibrachiatum (TRI), a cellulase from Aspergillus niger (ASP), or a 1:1 mixture of both ce...

Palm oil industry is currently a world leader in the supply of oils and fats which constitutes one major sectors highest economic importance Nigeria. This study investigates lipolytic activity microorganisms isolated from palm processing cottage industries Ekiti State. Soil samples were taken depth 10 – 15 cm six different locations within State, Microorganisms effluents identified using standa...

Proteases are one of the predominant groups industrial enzymes and it represents for about 65% total global enzyme market. microbial origin have great importance over plant sources because they minimize production costs, increase characteristics desired products widely used in biotechnological process. Among protease enzymes, aspartic proteases most important proteolytic which mainly produced b...

Microorganisms that can act as biocleaning agents potentially be isolated from existing graffiti. In this study, a total of 30 different isolates bacteria, fungi and yeasts were obtained black, blue, red silver graffiti coatings exposed outdoors conditions for 10 years. An additional strain was samples black powdered under laboratory 5 Each the most prolific sources (i.e. graffiti) evaluated al...

Polyhydroxyalkanoates (PHA) are linear bio-esters produce in nature by certain microorganisms particularly when subjected to limited nutrients sources such as nitrogen while carbon at abundance. PHA has attracted tremendous amount of attention from scientists globally due their biodegradable property environment-friendly alternative petrochemical based plastics. However, the biggest drawback us...

The kinetics of polychlorinated biphenyl (PCB) dechlorination by Hudson River (New York, USA) sediment microorganisms were investigated using Aroclor 1242 at 10 concentrations ranging from 0 to 900 ppm (0-11.2 micromol Cl/g sediment). The time course of PCB dechlorination and population growth were determined by congener-specific analysis and the most-probable-number technique, respectively, ov...