The objective of the present work was to evaluate novel active films made with biopolymeric matrices as carriers a living Bdellovibrio bacteriovorus HD100 strain, predatory bacterium antimicrobial potentials against pathogens. Biopolymer were prepared by casting method using following mixtures: collagen/sodium alginate/sorbitol (CA-S), alginate/glycerol (CA-G), and tapioca starch/sodium (StA-G)...

The uncontrolled, often inappropriate use of antibiotics has resulted in the increasing prevalence of antibiotic-resistant pathogens, with major cost implications for both United States and European health care systems. We describe the utilization of a low-molecular-weight oligosaccharide nanomedicine (OligoG), based on the biopolymer alginate, which is able to perturb multidrug-resistant (MDR)...

Novel bioactive films were developed from the incorporation of Lactococcus lactis into polysaccharide films. Two different biopolymers were tested: cellulose derivative (hydroxylpropylmethylcellulose (HPMC)) and corn starch. Lactic acid bacteria (LAB) free or previously encapsulated in alginate-pectin composite hydrogel microbeads were added directly to the film forming solution and films were ...

Biopolymers have been employed in enhanced oil recovery (EOR) due to their high viscosity and significant effects on waterflooding performance. Sodium alginate (NaAlg) is an excellent biopolymer that extracted primarily from brown algae. It has used the biotechnology industry as a thickening agent, colloidal stabilizer, application. In present study, series of sodium alginate/zirconium oxide na...

Production of Polyglutamate (PGA) biopolymer by immobilized Bacillus licheniformis strain-R was intensively investigated. Preliminary experiments were carried out to address the most suitable immobilization methodology. Entrapment of Bacillus cells in alginate-agar led optimal PGA production (36.75 g/l), with 1.32-and 2.18-fold increase in comparison with alginate-or K-carrageenan-immobilized c...

29 The uncontrolled, often inappropriate use of antibiotics has resulted in the increasing 30 prevalence of antibiotic-resistant pathogens, with major cost implications for both US and 31 European healthcare systems. We describe the utilization of a low molecular weight 32 oligosaccharide nanomedicine (OligoG) based on the biopolymer alginate, which is able to 33 perturb multi-drug resistant (M...

Abstract Alginate–zinc oxide (Alg–ZnO) biocomposite was synthesized and tested as a chromium ions Cr(VI) adsorbent for environmental applications. Alg–ZnO prepared by the interaction between sodium alginate biopolymer zinc nanoparticles (ZnO–NPs), modified wet chemical method. The solid adsorption characteristics of were characterized Fourier transform infrared spectroscopy (FTIR), X-ray diffra...

Nanoporous polyurea-cross-linked Ca-alginate (X-Ca-alginate) aerogels were prepared by reacting an aliphatic or aromatic triisocyanate with the preformed biopolymer network post gelation and drying in supercritical CO2. The nanomorphology of native together those different X-Ca-alginate investigated using low-voltage scanning electron microscopy, N2-sorption porosimetry, contrast variation smal...

Herein, we report on responsive systems presenting dual response to two different stimuli, namely glucose and hydrogen peroxide which are interesting for biological applications. New chemical stimulus-responsive multilayer assemblies have been designed through the layer-by-layer deposition of oppositely charged biopolymer either flat or spherical surfaces. (diethylaminoethyl-dextran hydrochlori...