BACKGROUND Periodontitis is a major problem that affects a large number of patients in the society. Various treatment alternatives have been proposed to control this pathologic condition. Streptococcus sanguis is one of the countless pathogens involved in periodontitis. OBJECTIVES The current study aimed to assess the efficacy of pineapple extract per se and in synergy with vancomycin on the ...

Seed extracts of Moringa oleifera were assayed for the evaluation of antimicrobial activity against bacterial (Pasturella multocida, Escherichia coli, Bacillus subtilis and Staphlocuccus aureus) and fungal (Fusarium solani and Rhizopus solani) strains. The crude, supernatant, residue and dialyzed samples inhibited the growth of all microbs to various extents. The zones of growth inhibition show...

The inhibitory effects of fifteen chitosans with different degrees of polymerization (DP) and different degrees of acetylation (FA) on the growth rates (GR) of four phytopathogenic fungi (Alternaria alternata, Botrytis cinerea, Penicillium expansum, and Rhizopus stolonifer) were examined using a 96-well microtiter plate and a microplate reader. The minimum inhibitory concentrations (MICs) of th...

Here we report the modification of an amphiphilic antibacterial polynorbornene, Poly3, via incorporation of hydrophilic, biocompatible groups. The sugar, zwitterionic, and polyethylene glycol based moieties were incorporated in varying ratios by copolymerization and postpolymerization techniques. Well-defined copolymers with molecular weights of 3 kDa and narrow polydispersity indices ranging f...

A series of 2-(p-substituted phenyl)-5-(2-{4-[(p-chloro-fluorophenyl)/phenyl] piperazin-1-yl}acetamido)-benzoxazoles were synthesized and tested for their antimicrobial activities. The structures of the new derivatives were elucidated by spectral techniques. The minimum inhibitory concentrations (MIC) of the new benzoxazoles, along with those of previously synthesized analogues, were determined...

This work reports antimicrobial activity of oregano (Origanum vulgare) essential oil against several bacteria in sausage. The in vitro minimum inhibitory concentration (MIC) was determined for 9 selected aerobic heterotrofic bacteria. The antimicrobial activity of distinct concentrations of the essential oil on the basis of the highest MIC found was tested in a food system comprised of fresh sa...