Antibiofilm Effect of DNase against Single and Mixed Species Biofilm
AbstractBiofilms are aggregates of microorganisms that coexist in socially coordinated micro-niche in a self-produced polymeric matrix on pre-conditioned surfaces. The biofilm matrix reduces the efficacy of antibiofilm strategies. DNase degrades the extracellular DNA (e-DNA) present in the matrix, rendering the matrix weak and susceptible to antimicrobials. In the current study, the effect of DNase I was evaluated during biofilm formation (pre-treatment), on preformed biofilms (post-treatment) and both (dual treatment). The DNase I pre-treatment was optimized for P. aeruginosa PAO1 (model biofilm organism) at 10 µg/mL and post-treatment at 10 µg/mL with 15 min of contact duration. Inclusion of Mg2+ alongside DNase I post-treatment resulted in 90% reduction in biofilm within only 5 min of contact time (irrespective of age of biofilm). On extension of these findings, DNase I was found to be less effective against mixed species biofilm than individual biofilms. DNase I can be used as potent antibiofilm agent and with further optimization can be effectively used for biofilm prevention and reduction in situ. View Full-Text
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Sharma, K.; Pagedar Singh, A. Antibiofilm Effect of DNase against Single and Mixed Species Biofilm. Foods 2018, 7, 42.
Sharma K, Pagedar Singh A. Antibiofilm Effect of DNase against Single and Mixed Species Biofilm. Foods. 2018; 7(3):42.Chicago/Turabian Style
Sharma, Komal; Pagedar Singh, Ankita. 2018. "Antibiofilm Effect of DNase against Single and Mixed Species Biofilm." Foods 7, no. 3: 42.
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