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Bactericidal Effects of Exiguobacterium sp GM010 Pigment Against Food-Borne Pathogens.

IR@CSIR-CFTRI

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Relation http://ir.cftri.com/14726/
https://doi.org/10.3389/fsufs.2020.00142
 
Title Bactericidal Effects of Exiguobacterium sp GM010 Pigment Against Food-Borne Pathogens.
 
Creator Ramesh Mekala, Krishna Prashanth
Saritha, G. Pandit
Mohan, A. Dhale
 
Subject 10 Food Microorganisms
 
Description Bacterium producing yellowish-orange pigment was identified (morphological, biochemical, and 16S rRNA) as Exiguobacterium sp GM010. The UV-visible spectrum of Exiguobacterium sp GM010 extract showing λ max at 465 nm revealed orange pigment characteristic. Pigment showed broad spectrum antibacterial action against gram positive and gram negative food-borne pathogens. The SYTO9 and propidium iodide (PI) staining revealed the cell membrane damage of food-borne pathogens under confocal laser scanning microscope (CLSM) indicating the bactericidal effect. This was evidenced by the fourier transform infrared (FTIR) spectrum, showing characteristic functional groups that mainly included hydroxyl, carbonyl, and carboxylic groups causing a system of delocalized electrons leading to destabilization of membrane and decrease in membrane potential that resulted in bactericidal effect. The pigment of Exiguobacterium sp GM010 were non-toxic against Artemia franciscana and can be a promising source to control the food-borne pathogens in food industries.
 
Date 2020
 
Type Article
PeerReviewed
 
Format pdf
 
Language en
 
Identifier http://ir.cftri.com/14726/1/fsufs-04-00142.pdf
Ramesh Mekala, Krishna Prashanth and Saritha, G. Pandit and Mohan, A. Dhale (2020) Bactericidal Effects of Exiguobacterium sp GM010 Pigment Against Food-Borne Pathogens. Frontiers in Sustainable Food Systems.