| Combined Effect of Enterocin and Lipase From Enterococcus faecium NCIM5363 Against Food Borne Pathogens: Mode of Action Studies. | |
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MedLine Citation:
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PMID: 22580888 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Food borne diseases have a major impact on public health whose epidemiology is rapidly changing. The whole cells of pathogens involved or their toxins/metabolites affect the human health apart from spoiling sensory properties of the food products finally affecting the food industry as well as consumer health. With pathogens developing mechanisms of antibiotic resistance, there has been an increased need to replace antibiotics as well as chemical additives with naturally occurring bacteriocins. Bacteriocins are known to act mainly against Gram-positive pathogens and with little or no effect towards Gram-negative enteric bacteria. In the present study, combination effect of lipase and bacteriocin produced by Enterococcus faecium NCIM5363, a highly lipolytic lactic acid bacterium against various food pathogens was assessed. The lipase in combination with enterocin exhibited a lethal effect against Gram-negative pathogens. Scanning electron microscopy studies carried out to ascertain the constitutive mode of action of lipase and enterocin revealed that the lipase degrades the cell wall of Gram-negative bacteria and creates a pore through which enterocin enters thereby resulting in cell death. The novelty of this work is the fact that this is the first report revealing the synergistic effect of lipase with enterocin against Gram-negative bacteria. |
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Authors:
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Vrinda Ramakrishnan; Bhaskar Narayan; Prakash M Halami |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-5-13 |
Journal Detail:
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Title: Current microbiology Volume: - ISSN: 1432-0991 ISO Abbreviation: - Publication Date: 2012 May |
Date Detail:
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Created Date: 2012-5-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7808448 Medline TA: Curr Microbiol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Food Microbiology, CSIR-Central Food Technological Research Institute (CSIR-CFTRI), Mysore, 570 020, Karnataka, India, vrinda.r2@gmail.com. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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