In-Vitro Characterization of Antimicrobial Effect of Polyvinylimidazole

Authors : Ozan Gurbuz, Yasemin Sahan, Ali Kara, Bilgen Osman

Pages : 353-357

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Publication Date : 2009-12-01

Article Type : Other

Abstract :The present study was devised to describe the effectiveness of degradable polymer polyvinylimidazole, PVI on microbial growth in-vitro. We observed the antimicrobial outcome of PVI on fungi and pathogen bacteria that are found in food-borne disease. The following pathogens and fungi examined were: Escherichia coli ATCC 35218 , Salmonella enteritidis ATCC 13076 , Staphylococcus aureus ATCC 33862 as bacterial organisms; Candida albicans, Kloeckera apiculata as yeast organisms; Aspergillus niger and Penicillium roqueforti as fungi. We utilized a plate count method with the test microorganisms. PVI, as a non-modified polymer, exhibited an inhibition effect on all test microorganisms. Currently there is only theoretical conjecture on the specific role PVI plays as an inhibition to food-borne fungi and pathogens. A comparison of the sensitivity of these microorganisms to PVI showed the greatest inhibitive effect was found with Kloeckera apiculata followed by Candida albicans. Both types of yeast completely died in 1 mg/mL concentration of PVI during 12-24 h treatments. Weaker activity is shown against Aspergillus niger and Penicillium roqueforti. These results were comparable with three different concentrations of PVI. The polymer was less effective, in a descending order, against Salmonella enteritidis, Escherichia coli and Staphylococcus aureus, respectively. Similar effects after 24 h incubation were observed R2=1 .
Keywords : Polyvinylimidazole, antimicrobial effect, Escherichia coli, Salmonella enteritidis, Staphylococcus aureus, Candida albicans, Kloecera apiculata, Aspergillus niger, Penicillium roqueforti