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Ephedra foeminea as a Novel Source of Antimicrobial and Anti-Biofilm Compounds to Fight Multidrug Resistance Phenotype. Int J Mol Sci 2023; 24:ijms24043284. [PMID: 36834695 PMCID: PMC9965181 DOI: 10.3390/ijms24043284] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/28/2023] [Accepted: 02/02/2023] [Indexed: 02/10/2023] Open
Abstract
Plants are considered a wealthy resource of novel natural drugs effective in the treatment of multidrug-resistant infections. Here, a bioguided purification of Ephedra foeminea extracts was performed to identify bioactive compounds. The determination of antimicrobial properties was achieved by broth microdilution assays to evaluate minimal inhibitory concentration (MIC) values and by crystal violet staining and confocal laser scanning microscopy analyses (CLSM) to investigate the antibiofilm capacity of the isolated compounds. Assays were performed on a panel of three gram-positive and three gram-negative bacterial strains. Six compounds were isolated from E. foeminea extracts for the first time. They were identified by nuclear magnetic resonance (NMR) spectroscopy and mass spectrometry (MS) analyses as the well-known monoterpenoid phenols carvacrol and thymol and as four acylated kaempferol glycosides. Among them, the compound kaempferol-3-O-α-L-(2″,4″-di-E-p-coumaroyl)-rhamnopyranoside was found to be endowed with strong antibacterial properties and significant antibiofilm activity against S. aureus bacterial strains. Moreover, molecular docking studies on this compound suggested that the antibacterial activity of the tested ligand against S. aureus strains might be correlated to the inhibition of Sortase A and/or of tyrosyl tRNA synthase. Collectively, the results achieved open interesting perspectives to kaempferol-3-O-α-L-(2″,4″-di-E-p-coumaroyl)-rhamnopyranoside applicability in different fields, such as biomedical applications and biotechnological purposes such as food preservation and active packaging.
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Anderson RC, Levent G, Petrujkić BT, Harvey RB, Hume ME, He H, Genovese KJ, Beier RC, Poole TL, Crippen TL, Nisbet DJ. Antagonistic Effects of Lipids Against the Anti- Escherichia coli and Anti- Salmonella Activity of Thymol and Thymol-β-d-Glucopyranoside in Porcine Gut and Fecal Cultures In Vitro. Front Vet Sci 2021; 8:751266. [PMID: 34631867 PMCID: PMC8497039 DOI: 10.3389/fvets.2021.751266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 08/20/2021] [Indexed: 11/13/2022] Open
Abstract
Strategies are sought to reduce the carriage and dissemination of zoonotic pathogens and antimicrobial-resistant microbes within food-producing animals and their production environment. Thymol (an essential oil) is a potent bactericide in vitro but in vivo efficacy has been inconsistent, largely due to its lipophilicity and absorption, which limits its passage and subsequent availability in the distal gastrointestinal tract. Conjugation of thymol to glucose to form thymol-β-d-glucopyranoside can decrease its absorption, but in vivo passage of effective concentrations to the lower gut remains suboptimal. Considering that contemporary swine diets often contain 5% or more added fat (to increase caloric density and reduce dustiness), we hypothesized that there may be sufficient residual fat in the distal intestinal tract to sequester free or conjugated thymol, thereby limiting the availability and subsequent effectiveness of this biocide. In support of this hypothesis, the anti-Salmonella Typhimurium effects of 6 mM free or conjugated thymol, expressed as log10-fold reductions of colony-forming units (CFU) ml-1, were diminished 90 and 58%, respectively, following 24-h in vitro anaerobic fecal incubation (at 39°C) with 3% added vegetable oil compared to reductions achieved during culture without added oil (6.1 log10 CFU ml-1). The antagonistic effect of vegetable oil and the bactericidal effect of free and conjugated thymol against Escherichia coli K88 tested similarly were diminished 86 and 84%, respectively, compared to reductions achieved in cultures incubated without added vegetable oil (5.7 log10 CFU ml-1). Inclusion of taurine (8 mg/ml), bile acids (0.6 mg/ml), or emulsifiers such as polyoxyethylene-40 stearate (0.2%), Tween 20, or Tween 80 (each at 1%) in the in vitro incubations had little effect on vegetable oil-caused inhibition of free or conjugated thymol. Based on these results, it seems reasonable to suspect that undigested lipid in the distal gut may limit the effectiveness of free or conjugated thymol. Accordingly, additional research is warranted to learn how to overcome obstacles diminishing bactericidal activity of free and conjugated thymol in the lower gastrointestinal tract of food-producing animals.
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Affiliation(s)
- Robin C Anderson
- United States Department of Agriculture, Agricultural Research Service, Southern Plains Agricultural Research Center, College Station, TX, United States
| | - Gizem Levent
- United States Department of Agriculture, Agricultural Research Service, Southern Plains Agricultural Research Center, College Station, TX, United States.,Department of Veterinary Pathobiology, Texas A&M University, College Station, TX, United States
| | - Branko T Petrujkić
- United States Department of Agriculture, Agricultural Research Service, Southern Plains Agricultural Research Center, College Station, TX, United States.,Department of Nutrition and Botany, Faculty of Veterinary Medicine, University of Belgrade, Belgrade, Serbia
| | - Roger B Harvey
- United States Department of Agriculture, Agricultural Research Service, Southern Plains Agricultural Research Center, College Station, TX, United States
| | - Michael E Hume
- United States Department of Agriculture, Agricultural Research Service, Southern Plains Agricultural Research Center, College Station, TX, United States
| | - Haiqi He
- United States Department of Agriculture, Agricultural Research Service, Southern Plains Agricultural Research Center, College Station, TX, United States
| | - Kenneth J Genovese
- United States Department of Agriculture, Agricultural Research Service, Southern Plains Agricultural Research Center, College Station, TX, United States
| | - Ross C Beier
- United States Department of Agriculture, Agricultural Research Service, Southern Plains Agricultural Research Center, College Station, TX, United States
| | - Toni L Poole
- United States Department of Agriculture, Agricultural Research Service, Southern Plains Agricultural Research Center, College Station, TX, United States
| | - Tawni L Crippen
- United States Department of Agriculture, Agricultural Research Service, Southern Plains Agricultural Research Center, College Station, TX, United States
| | - David J Nisbet
- United States Department of Agriculture, Agricultural Research Service, Southern Plains Agricultural Research Center, College Station, TX, United States
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Zhang X, Zhou D, Bai H, Liu Q, Xiao XL, Yu YG. Comparative transcriptome analysis of virulence genes of enterohemorrhagic Escherichia coli O157:H7 to acid stress. FOOD BIOTECHNOL 2021. [DOI: 10.1080/08905436.2021.1908345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Xiaowei Zhang
- School of Food Science and Engineering, South China University of Technology, Guangzhou City, Guangdong Province, China
| | - Donggen Zhou
- Ningbo International Travel Healthcare Center, Ningbo City, Haishu District, China
| | - Hong Bai
- School of Food Science and Engineering, South China University of Technology, Guangzhou City, Guangdong Province, China
| | - Qijun Liu
- School of Food Science and Engineering, South China University of Technology, Guangzhou City, Guangdong Province, China
| | - Xing-Long Xiao
- School of Food Science and Engineering, South China University of Technology, Guangzhou City, Guangdong Province, China
| | - Yi-Gang Yu
- School of Food Science and Engineering, South China University of Technology, Guangzhou City, Guangdong Province, China
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Hulankova R, Borilova G. Modeling dependence of growth inhibition of
Salmonella
Typhimurium and
Listeria monocytogenes
by oregano or thyme essential oils on the chemical composition of minced pork. J Food Saf 2020. [DOI: 10.1111/jfs.12818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Radka Hulankova
- University of Veterinary and Pharmaceutical Sciences Brno Faculty of Veterinary Hygiene and Ecology, Department of Meat Hygiene and Technology Brno Czech Republic
| | - Gabriela Borilova
- University of Veterinary and Pharmaceutical Sciences Brno Faculty of Veterinary Hygiene and Ecology, Department of Meat Hygiene and Technology Brno Czech Republic
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Lastra‐Vargas L, Lopez‐Malo A, Palou E. Modeling
Salmonella
(
S
. Typhimurium ATCC14028, ATCC 13311,
S
. Typhi ATCC 19430, and
S. enterica
) and
Listeria
(
L. monocytogenes
Scott A, ATCC 7644, and CDBB‐B‐1426) cocktails’ survival under the effects of pH, protein, and essential oil concentration. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.14718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Leonor Lastra‐Vargas
- Chemical and Food Engineering Department Universidad de las Américas Puebla Puebla Mexico
| | - Aurelio Lopez‐Malo
- Chemical and Food Engineering Department Universidad de las Américas Puebla Puebla Mexico
| | - Enrique Palou
- Chemical and Food Engineering Department Universidad de las Américas Puebla Puebla Mexico
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Medeiros ASDJ, Carvalho RI, Conceição MLD, Magnani M, Souza ELD. Influence of lipids and proteins amounts and pH values on the inhibitory effects of Origanum vulgare L. essential oil against Escherichia coli and Salmonella Typhimurium. BRAZ J PHARM SCI 2020. [DOI: 10.1590/s2175-97902020000118468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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de Carvalho FG, Magalhães TC, Teixeira NM, Gondim BLC, Carlo HL, dos Santos RL, de Oliveira AR, Denadai ÂML. Synthesis and characterization of TPP/chitosan nanoparticles: Colloidal mechanism of reaction and antifungal effect on C. albicans biofilm formation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:109885. [DOI: 10.1016/j.msec.2019.109885] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 05/29/2019] [Accepted: 06/11/2019] [Indexed: 11/27/2022]
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