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“In this work, modified atmosphere packaging (MAP) was used to prolong the Ricotta shelf life. In particular, three different MAP

were tested. The quality loss of the product was assessed by monitoring microbial and physico-chemical parameters over an 8-day period. Results suggest that MAP, and in particular that richer in carbon dioxide, inhibits microbial growth without a significant effect on lactic acid bacteria, probably due to their facultative anaerobic nature. The longest shelf life was obtained with MAP containing 95% of carbon dioxide. With regard to the visual quality, a substantial difference in the yellow index was also observed between Ricotta stored in air and that packaged under MAP.”
“The sensititivity of thermophilic Campylobacter strains isolated from caecum of broiler chickens as well as caecum and selleck products selleckchem colon of pigs and human stools, were tested against erythromycin. In 16 strains isolated in broiler chickens, resistance rate was found to be 12.50%. Three of 10 strains of Campylobacter jejuni and one of 6 strains of Campylobacter coli isolated from broiler chickens were resistant to erythromycin.

In 15 strains of thermophilic Campylobacters isolated from pigs, resistance rate to erythromycin was 40.00%. Resistance was exhibited more often in C. coli (50.00%) PHA-848125 chemical structure as compared to C. jejuni (20.00%). In 24 strains isolated from humans, resistance was demonstrated at the rate of 12.50%. Out of 17 strains of C. jejuni isolated from humans, resistance was exhibited in 17.65% strains. None of 7 strains of C. coli isolated from humans exhibited resistance to erythromycin. Thermophilic campylobacters, especially C. coli isolated from pigs were more resistant to erythromycin than strains isolated from humans and broiler chickens. Therefore, a great attention should be directed to the macrolides monitoring in swine farming in order to prevent resistance in animals and its subsequent spread to human.”
“An efficient protocol for the synthesis of polymergemcitabine conjugates with variable

composition and potential hepatoma-targeting property was achieved by combining selectively enzymatic transesterification with radical polymerization. Four polymerizable vinyl gemcitabine esters were first prepared by highly selective transesterification of gemcitabine with divinyl dicarboxylates using CAL-B as catalyst in acetone and characterized by IR, 1H-NMR, 13C-NMR, and ESI-MS. The effects of enzyme sources, organic solvents, and molar ratio of substrates on the enzymatic transesterification were investigated in detail. Then a,a’-azobis-(isobutyronitrile)-initiated homopolymerization of the resultant gemcitabine monomers was performed and three polymergemcitabine conjugates with high gemcitabine content (>55 wt %) were synthesized.