Effectiveness and mechanisms of essential oils for biofilm control on food-contact surfaces: An updated review

Rossi, Chiara; Chaves‐López, Clemencia; Serio, Annalisa; Casaccia, Manila; Maggio, Francesca; Paparella, Antonello

doi:10.1080/10408398.2020.1851169

Cited by 84 publications

(64 citation statements)

References 138 publications

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“…After 18 h of incubation, one mL of bacterial suspension was transfered into fresh Brain Heart Infusion Broth (BHI) supplemented with 0.2% of glucose and incubated at 37 °C for 18 h. Successively, strains were harvested by centrifugation and standardized at 0.1 of absorbance (about 3 × 10 7 CFU/mL), as reported by Ref. 10 . The inoculum was confirmed by plate counts in Violet Red Bile Glucose Agar (BRVGA) (Oxoid), incubated at 37 °C for 24 h. The strains were characterized for their capability to form biofilm following the method used by Ref.…”

Section: Methodsmentioning

confidence: 99%

“…The persistence of MDR microorganisms in clinical and foods environment is favored by biofilm formation and it is considered a real threat to human health 9 . This structure confers different advantages to bacteria, such as interaction and cooperation, nutrient and enzyme entrapment, heterogeneous habitat, and tolerance to antimicrobial agents 10 . Growth in biofilms enhances not only the survival of bacterial populations but also genetic transfer between bacteria and it could be responsible for the persistence and transmission of antimicrobial resistance genes 11 .…”

Section: Introductionmentioning

confidence: 99%

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The membrane depolarization and increase intracellular calcium level produced by silver nanoclusters are responsible for bacterial death

Molina-Hernández

Aceto

Bucciarelli

et al. 2021

Sci Rep

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This work highlights how our silver ultra nanoclusters (ARGIRIUM-SUNc) hand-made synthesized, are very useful as a bactericide and anti-biofilm agent. The Argirium-SUNc effective antibacterial concentrations are very low (< 1 ppm) as compared to the corresponding values reported in the literature. Different bacterial defense mechanisms are observed dependent on ARGIRIUM-SUNc concentrations. Biochemical investigations (volatilome) have been performed to understand the pathways involved in cell death. By using fluorescence techniques and cell viability measurements we show, for the first time, that membrane depolarization and calcium intracellular level are both primary events in bacteria death. The ARGIRIUM-SUNc determined eradication of different biofilm at a concentration as low as 0.6 ppm. This suggests that the effect of the nanoparticles follows a common mechanism in different bacteria. It is highly probable that the chemical constitution of the crosslinks could be a key target in the disrupting mechanism of our nanoparticles. Since the biofilms and their constituents are essential for bacterial survival in contact with humans, the silver nanoparticles represent a logical target for new antibacterial treatments.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The membrane depolarization and increase intracellular calcium level produced by silver nanoclusters are responsible for bacterial death

Molina-Hernández

Aceto

Bucciarelli

et al. 2021

Sci Rep

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“…However, there are opposite voices. If biofilms accumulate on the contact surfaces of food packaging or equipment, induced dispersal could result in cross infections if the antibacterial agent fails to eradicate the released cells, and bacterial cells can detach from the surfaces, increasing the microbial load on the food product (Rossi et al 2020). Although targeting QS system is a promising strategy, studies will need to address these challenges.…”

Section: Interfering With Luxs/ai-2mentioning

confidence: 99%

Target-based screening for natural products against Staphylococcus aureus biofilms

Guo

Bai

Shen

et al. 2021

Critical Reviews in Food Science and Nutrition

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As a notorious food-borne pathogen, Staphylococcus aureus can readily cause diseases in humans via contaminated food. Biofilm formation on various surfaces can increase the capacity of viable S. aureus cells for self-protection due to the stubborn structure of the biofilm matrix. increased disease risk and economic losses caused by biofilm contamination in the food industry necessitate the urgent development of effective strategies for the inhibition and removal of S. aureus biofilms. Natural products have been extensively used as important sources of "eco-friendly" antibiofilm agents to avoid the side effects of conventional strategies on human health and the environment. This review discusses biofilm formation of S. aureus in food industries and focuses on providing an overview of potential promising target-oriented natural products and their mechanisms of S. aureus biofilm inhibition or removal. Hoping to provide valuable information of attractive research targets or potential undeveloped targets to screen potent natural anti-biofilm agents in food industries.

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“…On the contrary, P. fluorescens pf5 exhibited good biofilm formation capacity, which is an important feature for a spoilage organism. Cells in biofilms are an important risk factor in food environments for the potential contamination of foods and the possibility to become resistant to antimicrobials [ 20 ]. Pseudomonas spp., especially P. fluorescens , is a specific spoilage microorganism of dairy products and is frequently isolated from dairy environments [ 2 , 46 , 47 ].…”

Section: Discussionmentioning

confidence: 99%

“…Biofilms found in nature are generally formed by two or more microbial species. In fact, multi-species biofilms are commonly encountered in food and food-related environments [ 20 ]. Multi-species interactions and the physiological conditions of microorganisms influence the properties of the formed biofilms.…”

Section: Introductionmentioning

confidence: 99%

Interactions between L. monocytogenes and P. fluorescens in Dual-Species Biofilms under Simulated Dairy Processing Conditions

Maggio

Rossi

Chaves‐López

et al. 2021

Foods

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In dairy processing environments, many bacterial species adhere and form biofilms on surfaces and equipment, leading to foodborne illness and food spoilage. Among them, Listeria monocytogenes and Pseudomonas spp. could be present in mixed-species biofilms. This study aimed to evaluate the interactions between L. monocytogenes and P. fluorescens in biofilms simulating dairy processing conditions, as well as the capability of P. fluorescens in co-culture to produce the blue pigment in a Ricotta-based model system. The biofilm-forming capability of single- and mixed-cultures was evaluated on polystyrene (PS) and stainless steel (SS) surfaces at 12 °C for 168 h. The biofilm biomass was measured, the planktonic and sessile cells and the carbohydrates in biofilms were quantified. The biofilms were also observed through Confocal Laser Scanning Microscopy analysis. Results showed that only P. fluorescens was able to form biofilms on PS. Moreover, in dual-species biofilms at the end of the incubation time (168 h at 12 °C), a lower biomass compared to P. fluorescens mono-species was observed on PS. On SS, the biofilm cell population of L. monocytogenes was higher in the dual-species than in mono-species, particularly after 48 h. Carbohydrates quantity in the dual-species system was higher than in mono-species and was revealed also at 168 h. The production of blue pigment by P. fluorescens was revealed both in single- and co-culture after 72 h of incubation (12 °C). This work highlights the interactions between the two species, under the experimental conditions studied in the present research, which can influence biofilm formation (biomass and sessile cells) but not the capability of P. fluorescens to produce blue pigment.

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Effectiveness and mechanisms of essential oils for biofilm control on food-contact surfaces: An updated review

Cited by 84 publications

References 138 publications

The membrane depolarization and increase intracellular calcium level produced by silver nanoclusters are responsible for bacterial death

The membrane depolarization and increase intracellular calcium level produced by silver nanoclusters are responsible for bacterial death

Target-based screening for natural products against Staphylococcus aureus biofilms

Interactions between L. monocytogenes and P. fluorescens in Dual-Species Biofilms under Simulated Dairy Processing Conditions

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