Journal
FOOD AND CHEMICAL TOXICOLOGY
Volume 118, Issue -, Pages 733-744Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.fct.2018.06.017
Keywords
-
Categories
Funding
- Department of Biotechnology, Government of India [BT/PR23592/MED/29/1203/2017]
- SASTRA Deemed University
- Maulana Azad National Research Fellowship by University Grants Commission (UGC), New Delhi [MANF-2015-17-TAM-55961]
Ask authors/readers for more resources
Multidrug-resistant (MDR) Staphylococcus aureus is a major cause of biofilm-associated and indwelling device related infections. The present study explores the anti-virulent and antibiofilm potency of chitosan extracted from the shells of the marine crab Portunus sanguinolentus against Methicillin Resistant Staphylococcus aureus (MRSA). The chemical characterization results revealed that the extracted chitosan (EC) has structural analogy to that of a commercial chitosan (CC). The extracted chitosan was found to be effective in reducing the staphyloxanthin pigment, a characteristic virulence feature of MRSA that promotes resistance to reactive oxygen species. Furthermore, Confocal laser scanning microscope (CLSM) revealed that EC exhibited a phenomenal dose dependent antibiofilm efficacy against mature biofilms of the standard as well as clinical MRSA strains and Scanning Electron Microscopy (SEM) confirmed EC had a higher efficacy in disrupting the thick Exopolysaccharide (EPS) layer than CC. Additionally, EC and CC did not have any cytotoxic effects when tested on lung epithelial cell lines. Thus, the study exemplifies the anti-virulent properties of a marine bioresource which is till date discarded as a biowaste.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available