Journal of Ethnopharmacology, Год журнала: 2024, Номер 335, С. 118631 - 118631
Опубликована: Июль 26, 2024
Язык: Английский
European Polymer Journal, Год журнала: 2024, Номер 206, С. 112778 - 112778
Опубликована: Янв. 18, 2024
Язык: Английский
Процитировано
26
Molecules, Год журнала: 2025, Номер 30(3), С. 455 - 455
Опубликована: Янв. 21, 2025
The escalating presence of antibiotic-resistant bacteria (ARB) in food systems presents a pressing challenge, particularly preventing contamination and ensuring safety. Traditional sanitation methods, such as cooking chemical disinfectants, provide effective means to reduce ARB, yet there is growing need for additional preventive measures directly on surfaces. This review explores the potential chitosan–phytochemical composites (CPCs) surface coatings prevent initial by thereby offering novel complementary approach conventional safety practices. Chitosan, combined with active plant-derived metabolites (phytochemicals), forms notable antibacterial antioxidant properties that enhance its protective effects. We examine CPC synthesis methodologies, including modifications, free radical-induced grafting, enzyme-mediated techniques, which stability activity CPCs against ARB. Highlighting recent findings CPCs’ efficacy through minimum inhibitory concentrations (MIC) zones inhibition, this underscores ARB risks surfaces, seafood, meat, postharvest products. insights provided here aim encourage future strategies leveraging preventative treatment mitigate production processing environments.
Язык: Английский
Процитировано
3
Scientific Reports, Год журнала: 2024, Номер 14(1)
Опубликована: Июль 26, 2024
Methicillin-resistant Staphylococcus aureus (MRSA) is a serious threat to patients with nosocomial infections, and infection strongly associated biofilm formation. Gallic acid (GA) natural bioactive compound found in traditional Chinese medicines that exerts potent antimicrobial activity. However, the anti-MRSA efficacy of GA remained be determined. This study investigated activities against MRSA mechanisms involved. The results revealed significant antibacterial antibiofilm GA. minimal inhibitory concentration was 32 μg/mL growth curve assay confirmed effect on planktonic MRSA. Crystal violet XTT assays showed 8 µg/mL effectively inhibited formation new biofilms disrupted existing by reducing both biomass metabolic activities. Alkaline phosphatase β-galactosidase leakage live/dead staining provided evidence integrity bacterial cell walls membranes within biofilm. Scanning electron microscopy observations significantly adhesion aggregation, affecting overall structure Bacterial adhesion, polysaccharide intercellular (PIA) production real-time quantitative PCR PIA synthesis, expression icaAD sarA. These suggested inhibiting sarA, then downregulating icaA icaD, thereby synthesis attenuate capacity therefore promising candidate for development as pharmaceutical agent prevention treatment infections caused
Язык: Английский
Процитировано
15
Antibiotics, Год журнала: 2025, Номер 14(1), С. 61 - 61
Опубликована: Янв. 9, 2025
Thermophilic Campylobacter species are among the main culprits behind bacterial gastroenteritis globally and have grown progressively resistant to clinically important antimicrobials. Many studies been carried out explore innovative alternative strategies control antibiotic-resistant campylobacters in animal reservoirs human hosts; however, limited performed develop efficient schemes against biofilms. This study investigated antimicrobial antibiofilm activities of some herbal extracts multidrug-resistant (MDR) recovered from different sources using phenotypic molecular techniques. The overall prevalence was 21.5%, representing 15.25% 6.25% for C. jejuni coli, respectively. Regarding jejuni, highest resistance rate observed amoxicillin-clavulanic acid colistin (85.25% each), followed by cefotaxime (83.61%) tetracycline (81.97%), whereas coli isolates showed absolute erythromycin (92%) (88%). Remarkably, all were MDR with elevated multiple (MAR) indices (0.54-1). potentials green tea (Camellia sinensis), rosemary (Rosmarinus officinalis) ginger (Zingiber officinale) assessed disk diffusion assay broth microdilution technique. Green extract a marked inhibitory effect tested isolates, exhibiting growth inhibition zone diameters 8 38 mm minimum concentration (MIC) range 1.56-3.12 mg/mL, unlike extracts. Our findings reveal respectable activity (>50% biofilm formation inhibition) preformed biofilms isolates. Furthermore, real-time quantitative polymerase chain reaction (RT-qPCR) results significant decrease (p < 0.05) expression levels biosynthesis gene its regulator (FlaA LuxS, respectively) treated comparison untreated ones. is first vitro approach that has documented MDR-biofilm-producing isolated sources. Further vivo animals' models should be provide evidence concept implementation this candidate mitigation infections future.
Язык: Английский
Процитировано
1
South African Journal of Botany, Год журнала: 2025, Номер 177, С. 617 - 629
Опубликована: Янв. 5, 2025
Язык: Английский
Процитировано
1
Antibiotics, Год журнала: 2023, Номер 12(11), С. 1622 - 1622
Опубликована: Ноя. 13, 2023
Methicillin-resistant Staphylococcus aureus (MRSA), a global health concern, has prompted research into antibiotic adjuvants as potential solution. Although our group previously reported the enhancing effects of gallic acid (GA) and methyl gallate (MG) on penicillin G activity against MRSA, synergistic with other β-lactam antibiotics underlying mechanism have not been fully explored. Therefore, this study primarily aimed to investigate antibacterial synergism through disc diffusion, checkerboard, time–kill assays. The β-lactamase inhibition was also examined both molecular modeling in vitro experiments. Additionally, bacterial morphology changes were studied using scanning electron microscopy (SEM). results revealed that GA MG exhibited anti-MRSA showed indifferent when combined methicillin susceptible S. (MSSA). Interestingly, demonstrated only β-lactamase-unstable MRSA lowest fractional inhibitory concentration (FIC) indexes ≤3.75. However, weak inhibition. Furthermore, GA, MG, combination ampicillin induced morphological suggesting possible affecting cell membrane. These findings suggest could potentially serve an adjunct combat infections.
Язык: Английский
Процитировано
11
Food and Bioprocess Technology, Год журнала: 2023, Номер 17(8), С. 2216 - 2231
Опубликована: Ноя. 14, 2023
Язык: Английский
Процитировано
10
Journal of Molecular Liquids, Год журнала: 2024, Номер 410, С. 125683 - 125683
Опубликована: Авг. 3, 2024
Язык: Английский
Процитировано
4
Pharmaceuticals, Год журнала: 2024, Номер 17(8), С. 996 - 996
Опубликована: Июль 27, 2024
The study investigates the phytochemical profile, antioxidant capacity, and antimicrobial activities of ethanol (ChL-EtOH) ethyl acetate (ChL-EtOAc) extracts from
Язык: Английский
Процитировано
3
International Microbiology, Год журнала: 2024, Номер unknown
Опубликована: Авг. 30, 2024
Язык: Английский
Процитировано
3