Biofilms and their consequences, with particular reference to hygiene in the food industry

Carpentier, Brigitte; Cerf, O.

doi:10.1111/j.1365-2672.1993.tb01587.x

Cited by 483 publications

(305 citation statements)

References 92 publications

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“…With that in mind, assuming that a biofilm can build up within a few hours 3 and considering that these devices are not usually cleaned properly, the SEBS-based TPE materials can become a place for microbial growth, leading to material degradation and ultimately the spread of infections. In this sense, the production of SEBS-based TPE materials with antimicrobial properties is important in order to maintain microbial cells at low counts 4 .…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial Performance of Thermoplastic Elastomers Containing Zinc Pyrithione and Silver Nanoparticles

et al. 2017

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The purpose of the present study was to evaluate the antimicrobial potential of styrene-ethylene/ butylene-styrene based thermoplastic elastomers (TPE) incorporated with zinc pyrithione (ZnPT) and silver nanoparticles (AgNano). Japan Industrial Standard was applied to evaluate the antimicrobial potential of incorporated TPE compounds against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). Antifungal action was evaluated against Aspergillus niger, Candida albicans and Cladosporium cladosporioides. Samples prepared with ZnPT eliminated 99.9% of the E. coli and 99.7 % of the S. aureus population, and presented an inhibition zone in the fungal assay. Samples prepared with AgNano eliminated 99.7% of the E. coli and 95.5 % of the S. aureus population. There was no inhibition zone in samples containing AgNano; however, these samples did not present fungal growth on their surfaces. TPE samples containing ZnPT showed biocidal activity against the microorganisms tested and can be used to develop antimicrobial products.

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Section: Introductionmentioning

confidence: 99%

Antimicrobial Performance of Thermoplastic Elastomers Containing Zinc Pyrithione and Silver Nanoparticles

et al. 2017

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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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“…Com base no balanço da energia livre interfacial é possível calcular se ocorre esse decréscimo de energia livre no sistema e predizer (negligenciando interações de cargas elétricas, uma vez que sistemas biológicos geralmente tem grande força iônica e essas interações geralmente são negligenciáveis) se a adesão será mais favorável ou menos favorável de acordo com cada superfície e micro-organismo. 17,18 Porém, alguns estudos observaram que nem sempre esse critério é válido. 19 Interações hidrofóbicas foram sugeridas como responsáveis por uma ampla gama de fenômenos de aderência.…”

Section: 10unclassified

Biossurfactantes: propriedades anticorrosivas, antibiofilmes e antimicrobianas

Araújo¹,

Freire²,

Nitschke³

2013

Quím. Nova

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Recebido em 13/11/12; aceito em 15/2/13; publicado na web em 15/4/13 BIOSURFACTANTS: ANTICORROSIVE, ANTIBIOFILM AND ANTIMICROBIAL PROPERTIES. Due to the importance of biofilms in the food industry, new products are being developed to enhance the efficiency of cleaning food-contact surfaces. Biosurfactants could be an alternative to synthetic products. The major advantages of biosurfactants over synthetic detergents are their low toxicity and highly biodegradable nature. Biosurfactants may also exhibit antimicrobial, anti-adhesive and anticorrosive activity concomitantly. In this review, we emphasize the potential application of biosurfactants as surface coating agents to prevent corrosion and decrease planktonic and sessile microbial growth.Keywords: biosurfactant; antibiofilm; anticorrosive. INTRODUÇÃOQualquer processo industrial que utilize matéria prima de origem biológica pode fornecer os ingredientes e as condições para o crescimento de micro-organismos, tanto sob a forma planctônica na água circulante quanto como biofilmes sobre superfícies.1 Geralmente, a sanitização de superfícies é o método utilizado para prevenir contaminação, no entanto, existem algumas evidências de que as práticas de sanitização atualmente aplicadas são menos efetivas sobre micro--organismos aderidos do que sobre células planctônicas.2 Devido à importância dos biofilmes em indústrias alimentícias, novos produtos são constantemente desenvolvidos para melhorar a eficiência de limpeza das superfícies que entram em contato com o alimento durante o processamento. Os biossurfactantes são compostos com propriedades tensoativas, produzidos por micro-organismos. Seu uso foi sugerido como uma alternativa à produtos de origem sintética. As principais vantagens em relação aos detergentes sintéticos residem em sua baixa toxicidade e natureza altamente biodegradável. Desta forma, são menos poluentes que os sintéticos. Estes mesmos produtos também podem apresentar atividade antimicrobiana e antiadesiva simultaneamente.3 Nesta revisão enfatizamos a importância do controle de biofilmes, o potencial de uso de biossurfactantes e a aplicação dos mesmos como agentes antimicrobianos, antibiofilmes e anticorrosivos em indústrias alimentícias. BiofilmesInicialmente, imaginava-se que os micro-organismos viviam de maneira planctônica, ou seja, livres, em suspensão. 4 Mas atualmente sabe-se que, em sua grande maioria, as bactérias são encontradas em comunidades de diferentes graus de complexidade e a existência do tipo de vida planctônica independente parece ser eventual. 4,5 As comunidades bacterianas que se desenvolvem entre fases, como interfaces sólido-líquido ou ar-líquido, são chamadas de biofilmes.6 Em indústrias de alimentos, a ocorrência de falhas nos procedimentos de higienização faz com que resíduos de alimentos fiquem aderidos aos equipamentos e superfícies.2,7 Então, sob determinadas condições, os micro-organismos aderem, interagem com as superfícies e iniciam a multiplicação celular até formar uma massa celular que é capaz de agregar nutrientes...

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Biofilms and their consequences, with particular reference to hygiene in the food industry

Cited by 483 publications

References 92 publications

Antimicrobial Performance of Thermoplastic Elastomers Containing Zinc Pyrithione and Silver Nanoparticles

Antimicrobial Performance of Thermoplastic Elastomers Containing Zinc Pyrithione and Silver Nanoparticles

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

Biossurfactantes: propriedades anticorrosivas, antibiofilmes e antimicrobianas

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