Adhesion of Staphylococcus aureus and Staphylococcus xylosus to materials commonly found in catering and domestic kitchens

Azelmad, K.; Hamadi, Fatima; Mimouni, R.; Amzil, K.; Latrache, Hassan; Mabrouki, Mustapha; Boulani, Abdellah El

doi:10.1016/j.foodcont.2016.07.044

Cited by 26 publications

(32 citation statements)

References 48 publications

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“…The P. aeruginosa biofilm formation on the stainless steel 316 and stainless steel 304 was performed and the results demonstrated that a high number of P. aeuginosa cells have been adhered to stainless steel 316 than stainless steel 304. This difference could be explained by the surfaces roughness as reported by Azelmad et al [4] which showed that stainless steel 316 (6.1±1.4 nm) is rougher than stainless steel 304 (2.7±0.1 nm). Other works also reported that the bacterial adhesion increases by the increasing of the surface roughness [4,40,50].…”

Section: Discussionmentioning

confidence: 76%

“…After 5 min of contact, the surfaces were rinsed 3 times. They were after placed in the glass tubes containing 10 mL of sterile physiological saline, and sonicated at 35 kHz for 10 min and vortexed [4,35]. To quantify viable cells, bacteria were resuspended, serially diluted 10-fold with sterilized physiological saline and cultured on nutrient Agar at the temperature of 37°C for 24 hours [45,47,48].…”

Section: Efficiency Of Sodium Hypochlorite Against Biofilm Cellsmentioning

confidence: 99%

“…This bacterium was isolated from different surfaces [1,2]. It has the ability to attach to a variety of them, including the food processing environment, and form biofilm [3,4]. This latter is defined as a biologically active matrix of cells and extracellular substances in association with a solid surface [5], and it is more resistant to sanitizing and antimicrobial agents [3].…”

Section: Introductionmentioning

confidence: 99%

“…The adhesion is considered the key step of biofilm formation and it is widely studied especially on the food contact surfaces [6][7][8][9][10]. This adhesion and consequently biofilm formation might be affected by physicochemical characteristics of the surfaces [11,12], and by its topography and roughness [4,13].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Evaluation of sodium hypochlorite efficiency on the elimination of Pseudomonas aeruginosa biofilm using two methods

Amzil¹,

Hamadi²,

Mimouni³

et al. 2019

Russ Open Med J

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Aims -The purposes of the present work were to study the biofilm formation of Pseudomonas aeruginosa on stainless steel (316 and 304) and to investigate the effectiveness of sodium hypochlorite with different concentrations after 5 min of treatment, against P. aeruginosa biofilm formed on the same substrata. Methods -The methods used in this study were plate count method (PCM) and atomic force microscopy (AFM). Results -The results obtained using PCM showed that bacteria adhered more to stainless steel 316 than stainless steel 304. Furthermore, sodium hypochlorite was effective against cells of P. aeruginosa adhered to stainless steel 304 at the concentration of 0.5 %, but it was not effective against the ones adhered to stainless steel 316 until the concentration of 1%. The AFM results appeared that some bacteria still adhered to two types of stainless steel after sodium hypochlorite treatment at all concentrations. Conclusion -The type of surface and the disinfectant concentration have an effect on the efficiency of the disinfectant against biofilm. In addition the PCM and AFM do not give the same results.

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Section: Discussionmentioning

confidence: 76%

Section: Efficiency Of Sodium Hypochlorite Against Biofilm Cellsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Evaluation of sodium hypochlorite efficiency on the elimination of Pseudomonas aeruginosa biofilm using two methods

Amzil¹,

Hamadi²,

Mimouni³

et al. 2019

Russ Open Med J

Self Cite

View full text Add to dashboard Cite

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“…(Zaborina et al, 2006). These kinds of bacteria can be found in the environment, and they have been detected in different kinds of surfaces and materials, such as cheeses, sauces and meats, among others (Azelmad et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Antibacterial activity of extracts of Stevia rebaudiana Bertoni against Staphylococcus aureus, Staphylococcus epidermidis and Pseudomonas aeruginosa

Miranda-ArÃ¡mbula¹,

Olvera-Alvarado²,

Lobo-SÃ¡nchez³

et al. 2017

J. Med. Plants Res.

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Plants have been an important source of secondary metabolites known for their diverse biological activities; some have been shown to inhibit the development of certain pathogenic microorganisms. Herein, the antimicrobial activity of the carbon tetrachloride, hexane, ethanol, and aqueous extracts of leaves of Stevia rebaudiana Bertoni against Staphylococcus aureus (strain 921), Staphylococcus epidermidis (strains 965, 982, and 735), and Pseudomonas aeruginosa (strains RO3 and RO4) was presented. The antibacterial activity was evaluated using the disk diffusion method, and the minimal inhibitory concentration (MIC) was determined. The results show that, even at the lowest evaluated concentration (1.06 mg/mL), the hexane extract had an inhibitory effect for all the studied microorganisms. The aqueous extract exhibited high inhibition values (84.4%), on S. epidermidis (strain 965). These results indicate that compounds contained in non-polar extracts of S. rebaudiana could be potential candidates as conventional pharmaceutical drugs against bacteria, resistant to conventional antibiotics.

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Adhesion energy, spreading coefficient and interfacial tension as an efficient tool for assessing biocide performance

Nguyen

Balasubramanian

Richardson

2022

J Surfact & Detergents

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It is estimated that microbiologically influenced corrosion (MIC) contributes to 20%-50% of the total cost of corrosion. Biocides are often used to counter MIC. Normally, the choice of a biocide is based on planktonic kill studies as well as cost of the treatment chemicals. Sessile kill studies have significant advantages over planktonic studies but usually take 8 weeks to complete. Furthermore, both sessile kill and planktonic studies only provide phenomenological results and therefore do not explain the mechanisms. To bridge this gap, we have calculated spreading coefficient and work of adhesion from contact angle measurements as a tool for assessing the performance of a biocide. This novel method provides insights into how biocides interact with a biofilm on a surface and is quicker than sessile kill study. Based on surface energy calculations, we have identified parameters that will aide in the prediction of biofilm removal and prevention. For example, surfactants with a positive spreading coefficient on a substrate and having a stronger affinity for the substrate than the biofilm (i.e., a lower interfacial tension) are effective in biofilm prevention. On the other hand, surfactants with a low interfacial tension with a substrate are effective in biofilm removal. Given the diversity of surfaces to which bacteria attach (carbon steel, near wellbore, membrane, etc.), this rapid technique is a good prediction tool for the effectiveness of a biocide application. This paper will provide an overview of the technique and discuss some examples of surfactants that can be used for biofilm removal and prevention.

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Adhesion of Staphylococcus aureus and Staphylococcus xylosus to materials commonly found in catering and domestic kitchens

Cited by 26 publications

References 48 publications

Evaluation of sodium hypochlorite efficiency on the elimination of Pseudomonas aeruginosa biofilm using two methods

Evaluation of sodium hypochlorite efficiency on the elimination of Pseudomonas aeruginosa biofilm using two methods

Antibacterial activity of extracts of Stevia rebaudiana Bertoni against Staphylococcus aureus, Staphylococcus epidermidis and Pseudomonas aeruginosa

Adhesion energy, spreading coefficient and interfacial tension as an efficient tool for assessing biocide performance

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