MLK27 strain displayed the highest adhesion inhibition against L. monocytogenes and produced organic acids, hydrogen peroxide, and bacteriocin. Cell-free culture supernatants (100 mu L/mL) and bacteriocin (1,280 AU/mL) of MLK27 strain strongly inhibited viable cell counts of L. monocytogenes adhered to HT-29 cells. However, there was no inhibitory effect of pathogen adhesion by bacteriocin treated with protease and inhibition Captisol in vitro activity of pathogen adhesion was partially decreased by heat-treated bacteriocin. According to biochemical and phylogenetic analysis, MLK27

strain was identified as Lactobacillus brevis MLK27. In conclusion, our results have shown that L. brevis MLK27 has ability to establish in human gastrointestinal tract and to prevent pathogenic L. monocytogenes infections, Saracatinib cost which is able to be considered as probiotic strains.”
“Thermoformable bionanocomposites of chitin whisker-graft-polycaprolactone (CHW-g-PCL) were synthesized by initiating

the ring-opening polymerization of caprolactone monomer onto the CHW surface under microwave radiation. In this case, the “”graft from”" strategy contributed to long and dense “”plasticizing”" PCL tails onto the CHW surface as the key of thermoforming, and, therefore, Such bionanocomposites were injection-molded as the sheets with a Structure of cocontinuous phase mediated with the entanglement of grafted PCL chains. The structure and properties of the molded CHW-g-PCL sheets were investigated by FTIR, XRD, SEM, DSC, DMTA, contact angle measurement, and tensile test. With an increase of the PCL content in CHW-g-PCL, the strength and elongation as well as the hydrophobicity of the nanocomposites increased at one time. This is the first report on the thermoformable polymer-grafted nanocrystal BIIB057 derived from natural polysaccharide. Moreover, such new bionanocomposites with good mechanical performances could have great potential applications. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 112: 28302837,

2009″
“Nafion (R)-based ionic polymer-metal composites (IPMCs), with ionic liquids as solvent, were fabricated by exchanging counterions to ionic liquids at room temperature. Ion exchange is performed by only immersing IPMC in a mixture of de-ionized water and ionic liquids at room temperature for 48 h. The fabricated IPMCs exhibited a bending curvature the same as or larger than that of conventional IPMCs with ionic liquids, formed by ion exchange to ionic liquids at an elevated temperature up to about 100 degrees C, and also had long-term stability in operation in air, with a fluctuation smaller than 21% in bending curvature during a 180 min operation. The effective ion exchange to ionic liquids in the present method is probably due to an increase in diffusion speed of ionic liquids into IPMC by adsorption of water in a Nafion (R) membrane.