Ara
Toplam kayıt 30, listelenen: 21-30
Characterization of functional properties of enterococcus faecium strains isolated from human gut
(National Research Council of Canada, 2015)
The aim of this work was to characterize the functional properties of Enterococcus faecium strains identified after isolation from human faeces. Of these isolates, strain R13 showed the best resistance to low pH, bile ...
Impact of the exopolysaccharide layer on biofilms, adhesion and resistance to stress in Lactobacillus johnsonii FI9785
(BioMed Central Ltd., 2015)
Background: The bacterial cell surface is a crucial factor in cell-cell and cell-host interactions. Lactobacillus johnsonii FI9785 produces an exopolysaccharide (EPS) layer whose quantity and composition is altered in ...
Genotoxic and antigenotoxic potentials of two Usnea species
(2015)
For ages, lichens have long been investigated popularly for biological roles, mainly antitumor, antimicrobial and antioxidant activities. Many positive results were obtained in these previous research. Thus, in this study, ...
Production of pectin lyase from xanthomonas campestris, purification, characterization and fruit juice application
(EM International, 2014)
Extracellular pectin lyase (EC 4.2.2.10) was produced by Xanthomonas campestris in solid state fermentation. Solid state fermentation was carried out using 250 mL Erlenmeyer flasks containing 5 g wheat bran, 1% citrus ...
Structure and biosynthesis of two exopolysaccharides produced by lactobacillus johnsonii FI9785
(2013)
Exopolysaccharides were isolated and purified from Lactobacillus johnsonii FI9785, which has previously been shown to act as a competitive exclusion agent to control Clostridium perfringens in poultry. Structural analysis ...
Spontaneous Mutation Reveals Influence of Exopolysaccharide on Lactobacillus johnsonii Surface Characteristics
(2013)
As a competitive exclusion agent, Lactobacillus johnsonii FI9785 has been shown to prevent the colonization of selected pathogenic bacteria from the chicken gastrointestinal tract. During growth of the bacterium a rare but ...
Carbonic anhydrase activity from the gilthead sea bream (Sparus aurata) liver: The toxicological effects of heavy metals
(2013)
Many studies have shown that metal ions may lead to oxidative stress in biological systems. Accordingly, DNA damage, protein modification, enzyme inhibition and activation, lipid peroxidation and many other effects may ...
Purification and characterisation of laccase from lactarius volemus and its application in removal of phenolic compounds from fruit juice
(WFL Publisher Ltd., 2013)
Laccases are multicopper oxidases (EC 1.10.3.2.), widely distributed in fungi, higher plants and bacteria. In this research, a laccase from Lactarius volemus (Russulaceae) was purified by 73.08 fold using precipitate of ...
The impact of heavy metals on the activity of carbonic anhydrase from rainbow trout (Oncorhynchus mykiss) kidney
(2012)
Many environmental and health problems have become a consequence of contamination of soil and water by toxic heavy metals and organic pollutants in the present age of technology. Heavy metals play vital roles in enzyme ...
Thermodynamics and kinetic studies of biosorption of a basic dye from aqueous solution using green algae Ulothrix sp.
(2010)
This study addresses removal of a basic dye, methylene blue, from aqueous solutions by using dried Ulothrix sp. biomass as biosorbent. The effects of the initial dye concentration, contact time, temperature, solution ...