The impact of Thymus vulgaris extractives on cedar wood surface energy: Theoretical and experimental of Penicillium spores adhesion

Sadiki, Moulay; Abed, Soumya El; Barakat, Hassan; Laachari, Faouzi; Koraichi, Saâd Ibnsouda

doi:10.1016/j.indcrop.2015.10.001

Cited by 22 publications

(11 citation statements)

References 46 publications

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“…Indeed, the experimental assay proves that all tested strains are able to adhere to oak wood with DG XDLVO < 0 and except W. anomalus, all tested strains are not able to adhere to pine wood (DG XDLVO > 0). Our findings corroborate with previous results (Hamadi et al, 2009;Elabed et al, 2013;Sadiki et al, 2015), which reported a good correlation between XDLVO results and experimental adhesion.…”

Section: Experimental Adhesion Of Yeast Species On Wood Speciessupporting

confidence: 94%

“…Matlab software quantifies the experimental adhesion by calculating the ratio of the surface covered by microbial cells and the wood total surface. It is a useful software widely used for this adhesion quantification purpose (Elabed et al, 2012;Sadiki et al, 2015).…”

Section: Environmental Scanning Electron Microscopy Analysismentioning

confidence: 99%

“…Theoretical physicochemical models can successfully explain biofilm formation phenomena, since the main factors affecting microbial adhesion are physicochemical properties of microbial cell and support surfaces. Indeed, many works correlating the experimental adhesion of microbial cells visualized by ESEM with surface physicochemical characteristics were reported (Sadiki et al, 2015).…”

Section: Prediction Of Adhesion Of the Yeast Strains To Wood Species mentioning

confidence: 99%

“…In many works physicochemical models has succeeded to explain microbial adhesion visualized using ESEM results (Elabed et al, 2013;Sadiki et al, 2015). In fact, XDLVO approach proved to be more effective than other predictive tools (Sharma and Hanumantha Rao, 2003).…”

Section: Experimental Adhesion Of Yeast Species On Wood Speciesmentioning

confidence: 99%

“…Classic DLVO model has been extensively reported, however, it was found unable to fully describe biotic and abiotic colloidal behavior in aqueous media (Grasso et al, 2002). The XDLVO theory was the most substantial theory to explain the experimental findings of microbial adhesion (Elabed et al, 2011(Elabed et al, , 2013Sadiki et al, 2015). In addition, this predictive tool takes into account the distance between cell and substratum surfaces (Bos et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

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Theoretical and Experimental Adhesion of Yeast Strains with High Chromium Removal Potential

Asri

Elabed

Ghachtouli

et al. 2017

Environmental Engineering Science

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Biofilm-based bioprocesses are increasingly used in wastewater treatment. Microbial adhesion constitutes the key step in stability of these depollution systems. For adhesion studies, physicochemical characterization of microbial cells and supports has proved to be of extreme importance. In this work, estimation of interaction between five yeast strains with a high potential for Cr (VI) removal using extended Derjaguin-Landau-Verwey and Overbeek (XDLVO) theory as a powerful predictive tool of adhesion was investigated. Predictions showed that wood husk could be a good support for the formation of tested yeast biofilm, beech and oak exhibit better properties than other wood species studied with 100% of potential for adhesion. From a thermodynamic point of view, pine and teak woods are not suitable for biofilm formation for all tested yeast strains, presenting positive values of free energy adhesion (DG XDLVO). Environmental scanning electronic microscopy (ESEM) and Matlab Ò image analysis confirmed that all tested yeast strains were able to adhere to pine wood and, except for Wickerhamomyces anomalus they were unable to adhere to oak wood. Adhesion experiments were found to be well related to the theoretical prediction. To our knowledge, this is the first study dealing with biofilmmediated depollution from an adhesion point of view aiming to optimize the stability of the system. It allows expanding knowledge about adhesion phenomena of yeast strains on wooden surface and contributes to select the best biofilm-support combination that would be used in a performant biological system for chromium removal.

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Section: Experimental Adhesion Of Yeast Species On Wood Speciessupporting

confidence: 94%

Section: Environmental Scanning Electron Microscopy Analysismentioning

confidence: 99%

Section: Prediction Of Adhesion Of the Yeast Strains To Wood Species mentioning

confidence: 99%

Section: Experimental Adhesion Of Yeast Species On Wood Speciesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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