Evaluation of a novel antimicrobial (lauric arginate ester) substance against biofilm of Escherichia coli O157:H7, Listeriamonocytogenes, and Salmonella spp
June 26, 2017  |  by: Mohammad Sadekuzzaman, Sungdae Yang,Hyung-Suk Kim, Md. Furkanur Rahaman Mizan & Sang-Do Ha   |  source: The International Journal of Food Science and Technology 2017


The International Journal of Food Science and Technology 2017, has issued a new paper by Mohammad Sadekuzzaman,1,2 Sungdae YangHyung-Suk KimMd. Furkanur Rahaman Mizan Sang-Do Ha 1*
1 School of Food Science and Technology, Chung-Ang University, 72-1 Nae-Ri, Daedeok- myeoun, Anseong-si, Gyeounggi-do 456-756, South Korea
2 Department of Livestock Services, Dhaka, People’s Republic of Bangladesh
(Received 16 January 2017; Accepted in revised form 12 April 2017)
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The purpose of this study was to evaluate the activity of a novel antimicrobial substance lauric arginate ester (LAE) against selected foodborne pathogens (Escherichia coli O157:H7, Listeria monocytogenes and Salmonella spp.) in biofilm. Minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) were determined and showed that LAE exhibits strong antimicrobial activity. Biofilms were grown on abiotic stainless steel, rubber, MBEC biofilm device) and biotic (lettuce) surfaces. The efficacy of LAE (50, 100, and 200 ppm) at reducing the biofilm cells on these surfaces was examined by applying LAE for 2 h. Results revealed that LAE exhibited the reduction in biofilm bacteria up to 7 log CFU cm-2, 3.5 log CFU cm-2, 4.0 log CFU peg-1 and 1.5 log CFU cm-2 on stainless steel, rubber, MBEC, and lettuce surfaces, respectively. Overall, these results suggest that LAE has been shown to be potential alternative to control bacteria in biofilm mode in the food industry.