Interactions between Biocide Cationic Agents and Bacterial Biofilms

Campanac, Catherine; Pineau, Laurent; Payard, A.; Baziard-Mouysset, G; Roques, Christine

doi:10.1128/aac.46.5.1469-1474.2002

Cited by 221 publications

(144 citation statements)

References 43 publications

(38 reference statements)

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“…These results are in agreement with results obtained previously, which indicates that the optimal activity toward a variety of bacterial species for numerous structural variations of water soluble surfactants occurs with an alkyl chain between 10 and 14 carbon atoms. These results are in agreement with those reported elsewhere [36][37][38][39].…”

Section: Antimicrobial Activitysupporting

confidence: 83%

Biocidal activity and corrosion inhibition of some cationic surfactants derived from Thiol polyurethane.

Zaky

Sabbah²,

Negm

et al. 2017

Egypt. J. Chem.

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SIX series of cationic polyurethane surfactants were synthesized by the reaction between different six esters (which prepared by condensation of fatty alcohols namely: octanol, decanol, dodecanol, tetradecanol, hexadecanol and octadecanol with bromoacetic acid) and polyurethane as quaternizing agent. The chemical structures of these surfactants were confirmed using elemental analysis, FTIR spectra, + HNMR and UV analysis. The surface activities of the synthesized cationic thiol polyurethane surfactants showed their tendency towards adsorption at the air/water interface. The adsorption tendency was estimated from the values of surface tension and the depression of surface tension at the critical micelle concentration. The studied surfactants were evaluated as antimicrobial agents against pathogenic and sulfur reducing bacteria using inhibition zone diameters and minimum inhibition concentration values. The synthesized cationic thiol polyurethane surfactants showed good antimicrobial activities against the tested microorganisms including Gram positive, Gram negative as well as fungi. The synthesized compounds were tested for the activity as corrosion inhibitors against carbon steel corrosion in 2N H 2 SO 4 at 50, 100, 200, 400 and 600 ppm. The inhibition efficiencies of the tested compounds showed good inhibition and protection of the carbon steel. The corrosion inhibition tendency correlated to the surface activity and chemical structure of the compounds.Keywords: Cationic surfactants, Surface activity, Adsorption , Antimicrobial activity, Corrosion inhibition, Polyurethane. IntoductionCorrosion inhibitors are added to prevent metal dissolution during its surface cleaning from oxides and other adherent materials [1]. Also, corrosion inhibitors may be liquids or powder form that effectively reduces the corrosion rate by adsorbing on the metal surface [2,3]. Corrosion inhibition efficiency of organic compounds is related to their adsorption properties [4]. Corrosion protection of steel in acidic media is of great importance for both industrial facilities and theoretical aspects [5]. The adsorption of these molecules depends mainly on certain physicochemical properties of the inhibitor molecule such as the presence of heteroatoms including: oxygen, sulfur, nitrogen atoms and multiple bonds in the molecule through which they are adsorbed on the metal surface [6][7][8][9][10].Heteroatoms such as nitrogen, oxygen, and sulfur are capable of forming coordinate covalent bond with metal owing to their free electron pairs and thus acting as inhibitor. Compounds with π bonds generally exhibit good inhibitive properties due to the interaction of π orbital with metal surface [11][12][13]. The selection of a suitable inhibitor for a particular system is a difficult task because of the selectivity of the inhibitors and wide variety of corrosive environment. As a result, several types of corrosion inhibitors were developed to fit the different types of corrosion processes and also the medium where the corrosion takes place. Cor...

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Section: Antimicrobial Activitysupporting

confidence: 83%

Biocidal activity and corrosion inhibition of some cationic surfactants derived from Thiol polyurethane.

Zaky

Sabbah²,

Negm

et al. 2017

Egypt. J. Chem.

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“…Bacteria which survive in the biofilms on surfaces are much more resistant to biocidal agents than planktonic cells of the same species (Carpentier & Cerf 1993;Campanac et al 2002). Due to this fact, the conventional sanitation and disinfectant agents may fail to kill bacteria under certain conditions (Hodd & Zottola 1997).…”

mentioning

confidence: 99%

Microbial contamination after sanitation of food contact surfaces in dairy and meat processing plants

Schlegelová¹,

Babák²,

Holasová³

et al. 2010

Czech J. Food Sci.

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Schlegelová J., Babák V., Holasová M., Konstantinová L., Necidová L., Šišák F., Vlková H., Roubal P., Jaglic Z. (2010): Microbial contamination after sanitation of food contact surfaces in dairy and meat processing plants. Czech J. Food Sci., 28: 450-461.The occurrence of listeria monocytogenes, Salmonella spp., Bacillus cereus, Staphylococcus spp., enterococcus spp., and escherichia coli in raw food materials, food products, and on food contact surfaces after sanitation was investigated during the period of 2005-2006 in three dairy cattle farms (120 samples), one dairy (124 samples), and two meat processing plants (160 samples). A total of 1409 isolates were identified. The epidemiological characterisation and determination of the virulence factors and antimicrobial resistance were performed on selected isolates. The level of bacterial contamination generally decreased during the production process (the contamination of food products was lower than that of raw material). However, the contamination of food contact surfaces was relatively high even after sanitation. Moreover, specific microbiological profiles were found on the inside equipment surfaces in dairy facilities, where genetically closely related multi-resistant strains persisting in biofilm communities may occur as demonstrated for staphylococci. Although the occurrence of potentially significant pathogens was not high, the microorganisms such as l. monocytogenes, Salmonella spp., and shiga-toxin positive e. coli principally contaminated the meat processing plants. B. cereus isolates, among which 76% were positive for diarrhogenic enterotoxin, typically occurred on the inside equipment surfaces and in the heat-treated products.

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“…Kuponlar, %2.5 glutaraldehit çözeltisi ile +4°C'de 1 sa bekletilerek fikse edilmiş ve 10'ar dk etanol serilerinden (%30, %50, %80 ve %95) geçirilmiştir. Bekleme süresi sonunda kuponlar, havada kurumaya bırakılmıştır [10]. İnceleme öncesi kuponların yüzeyi 15 mm kalınlıkta altın ile kaplanmış ve kuponlar SEM cihazında incelenmiştir.…”

Section: Taramalı Elektron Mikroskobu (Sem) Analiziunclassified

Bi̇yofi̇lm Oluşumunun Galvani̇zli̇ Çeli̇ği̇n Bi̇yokorozyonuna Etki̇si̇ni̇n Elektroki̇myasal Yöntemlerle İncelenmesi̇

Ünsal¹,

Sungur²,

Cansever³

2017

NWSA

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The aim of this study was to investigate the morphology, structure and resistance of the biofilm including mixed bacterial population formed on the galvanized steel surfaces in a model water circulation system by electrochemical methods and to determine the effect of biofilm formation on the corrosion behavior of galvanized steel. The model water circulation system simulating a real cooling tower was run by maintaining uninterrupted supply of water for 3 months. The resistance of biofilm formed on the surface of the galvanized steels, which were removed from the model water circulation system montly, was determined by using electrochemical impedance spectroscopy (EIS). Polarization curves for each coupons were drawn. The biofilm formation and corrosion products were investigated by using scanning electron microscopy (SEM). As a result, it was determined that the structure and resistance of biofilm formed on the galvanized steel surfaces was different in each exposure time and thus the corrosion behavior of galvanized steel surfaces was changed according to time.

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Interactions between Biocide Cationic Agents and Bacterial Biofilms

Cited by 221 publications

References 43 publications

Biocidal activity and corrosion inhibition of some cationic surfactants derived from Thiol polyurethane.

Biocidal activity and corrosion inhibition of some cationic surfactants derived from Thiol polyurethane.

Microbial contamination after sanitation of food contact surfaces in dairy and meat processing plants

Bi̇yofi̇lm Oluşumunun Galvani̇zli̇ Çeli̇ği̇n Bi̇yokorozyonuna Etki̇si̇ni̇n Elektroki̇myasal Yöntemlerle İncelenmesi̇

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