کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4563687 1628529 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Physicochemical and biosorption properties of novel exopolysaccharide produced by Enterococcus faecalis
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
پیش نمایش صفحه اول مقاله
Physicochemical and biosorption properties of novel exopolysaccharide produced by Enterococcus faecalis
چکیده انگلیسی


• Studied characterization of exopolysaccharide of Enterococcus faecalis DU10 derived from duck intestine.
• HPTLC analysis revealed fructose and arabinose are as major, xylose and mannose are as minor sugar moieties of EPS.
• Excellent biosorption found for Zn(II), Pb(II), Cd(II) and Cu(II).
• high biofilm inhibition 46.31 ± 0.68% against Salmonella typhi achieved with low EPS concentration (0.1 mg/mL).

Duck intestinal homogenate isolate Enterococcus faecalis DU10 produced exopolysaccharide (EPS) (840 mg/L) in MRS medium (35 °C, pH 6.5), was characterized for its physicochemical, biosorption, antioxidant, antibiofilm and rheological properties. HPTLC analysis revealed fructose and arabinose are as major, xylose and mannose are as minor constituents of EPS. And further, this EPS DU10 was characterized through FTIR, 1H and 13C NMR. EPS DU10 efficiently adsorbed heavy metals Zn(II) (515.78 ± 0.7 mg/g), Pb(II) (424.42 ± 0.9 mg/g), Cd(II) (334.4 ± 14 mg/g), and Cu(II) (232.9 ± 0.3 mg/g). EPS DU10 exhibits broad spectrum of biofilm inhibition for bacterial pathogens and good in vitro antioxidant properties by scavenging free radicals at very low concentration (0.1 mg/mL). Along with these properties, high viscosity of EPS makes it suitable for pharmaceutical and industrial applications.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: LWT - Food Science and Technology - Volume 68, May 2016, Pages 606–614
نویسندگان
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