Antibacterial and Antibiofilm Effects of Photodynamic Treatment with Curcuma L. and Trans-Cinnamaldehyde against Listeria monocytogenes.

ABSTRACT: Photodynamic inactivation (PDI) is a highly effective treatment that can eliminate harmful microorganisms in a variety of settings. This study explored the efficacy of a curcumin-rich extract, Curcuma L., (Cur)- and essential oil component, trans-cinnamaldehyde, (Ca)-mediated PDI against Listeria monocytogenes ATCC 15313 (Lm) including planktonic cells and established biofilms on silicone rubber (Si), polytetrafluoroethylene (PTFE), stainless steel 316 (SS), and polyethylene terephthalate (PET). Applying Ca- and Cur-mediated PDI resulted in planktonic cell reductions of 2.7 and 6.4 log CFU/cm², respectively. Flow cytometric measurements (FCMs) coupled with CFDA/PI and TOTO^®-1 staining evidenced that Ca- doubled and Cur-mediated PDI quadrupled the

SUBMITTER: Ziminska A 

PROVIDER: S-EPMC10856099 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature