Exploring the antimicrobial effects of a phenolic-rich extract from jabuticaba depulping waste against enterotoxigenic Escherichia coli.

Autor:	Lima MDC; Laboratory of Food Microbiology, Department of Nutrition, Health Science Center, Federal University of Paraíba, João Pessoa, PB 58051-900,Brazil., Magnani M; Laboratory of Microbial Processes in Foods, Department of Food Engineering, Technology Center, Federal University of Paraíba, João Pessoa, PB 58051-900, Brazil., Lima MDS; Department of Food Technology,Federal Institute of Sertão de Pernambuco,Petrolina, PE 56316-686,Brazil., Macarisin D; Center for Food Safety and Applied Nutrition, Division of Microbiology, Food and Drug Administration, College Park, MD HFS-009, USA., de Sousa CP; Department of Morphology and Pathology, Center of Biological Sciences and Health, Federal University of São Carlos, São Carlos, SP 13565-905, Brazil.; Biotechnology Graduation Program, Center of Exact Sciences and Technologies, Federal University of São Carlos,São Carlos, SP 13565-905,Brazil., Dubreuil JD; Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, Québec J2S 2M2, Canada., de Souza EL; Laboratory of Food Microbiology, Department of Nutrition, Health Science Center, Federal University of Paraíba, João Pessoa, PB 58051-900,Brazil.
Jazyk:	angličtina
Zdroj:	Letters in applied microbiology [Lett Appl Microbiol] 2023 Feb 16; Vol. 76 (2).
DOI:	10.1093/lambio/ovad010
Abstrakt:	This study evaluated the effects of a phenolic-rich extract from jabuticaba [Myrciaria jaboticaba (Vell.) Berg] depulping waste (PEJ) on the survival, antibiotic susceptibility, virulence, and cellular functions of various enterotoxigenic Escherichia coli (ETEC) strains. The minimum inhibitory concentration of PEJ against the five tested ETEC strains was 125 mg mL-1. PEJ at 125 and 250 mg mL-1 caused reductions in viable cell counts of ≥ 3 and ≥ 5 log CFU mL-1 in ETEC over 24 h, respectively. PEJ at subinhibitory concentrations (31.25 and 62.5 mg mL-1) reduced the viable cell counts of ETEC when exposed to in vitro gastrointestinal conditions, besides decreasing the biofilm formation, cell surface hydrophobicity, mucin adhesion, and swimming and swarming motility. PEJ (31.25 and 62.5 mg mL-1) increased the susceptibility of the tested ETEC strains to various clinically relevant antibiotics. The exposure to PEJ (62.5 and 125 mg mL-1) impaired the membrane permeability and enzymatic and efflux pump activities in ETEC cells. PEJ effectively reduces survival, increases antibiotic susceptibility, and attenuates virulence in ETEC. These effects could be linked to a PEJ multi-target action disturbing various cellular functions in ETEC cells. PEJ could be a candidate for developing innovative solutions to prevent and treat ETEC infections. (© The Author(s) 2023. Published by Oxford University Press on behalf of Applied Microbiology International.)
Databáze:	MEDLINE
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