Combination of natural antimicrobials and sodium dodecyl sulfate for disruption of biofilms formed by contaminant bacteria isolated from sugarcane mills

Rigotti, Rachel Tereza; Corrêa, Jessica Audrey Feijó; Maia, Natalia Janaina Lago; Cesaro, Giovanna; Rosa, Edvaldo Antônio Ribeiro; Macedo, Renata Ernlund Freitas de; Luciano, Fernando Bittencourt

doi:10.1016/j.ifset.2017.01.007

Cited by 14 publications

(7 citation statements)

References 36 publications

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“…Synthetic surfactants, such as sodium dodecyl sulfate (SDS), are widely used in personal care and cleaning products. They reduce biofilm growth in a wide range of industrial, medical, and environmental contexts (Waaler et al 1993;Landa et al 1999;Rigotti et al 2017;Sloup et al 2016;Ueda et al 2019). Surfactants are amphiphilic chemicals that reduce surface tension within a liquid, sometimes through the formation of micelles.…”

Section: Introductionmentioning

confidence: 99%

Synthetic and biological surfactant effects on freshwater biofilm community composition and metabolic activity

Gill

Hunter

Coulson

et al. 2022

Appl Microbiol Biotechnol

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Surfactants are used to control microbial biofilms in industrial and medical settings. Their known toxicity on aquatic biota, and their longevity in the environment, has encouraged research on biodegradable alternatives such as rhamnolipids. While previous research has investigated the effects of biological surfactants on single species biofilms, there remains a lack of information regarding the effects of synthetic and biological surfactants in freshwater ecosystems. We conducted a mesocosm experiment to test how the surfactant sodium dodecyl sulfate (SDS) and the biological surfactant rhamnolipid altered community composition and metabolic activity of freshwater biofilms. Biofilms were cultured in the flumes using lake water from Lake Lunz in Austria, under high (300 ppm) and low (150 ppm) concentrations of either surfactant over a four-week period. Our results show that both surfactants significantly affected microbial diversity. Up to 36% of microbial operational taxonomic units were lost after surfactant exposure. Rhamnolipid exposure also increased the production of the extracellular enzymes, leucine aminopeptidase, and glucosidase, while SDS exposure reduced leucine aminopeptidase and glucosidase. This study demonstrates that exposure of freshwater biofilms to chemical and biological surfactants caused a reduction of microbial diversity and changes in biofilm metabolism, exemplified by shifts in extracellular enzyme activities. Key points • Microbial biofilm diversity decreased significantly after surfactant exposure. • Exposure to either surfactant altered extracellular enzyme activity. • Overall metabolic activity was not altered, suggesting functional redundancy.

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Section: Introductionmentioning

confidence: 99%

Synthetic and biological surfactant effects on freshwater biofilm community composition and metabolic activity

Gill

Hunter

Coulson

et al. 2022

Appl Microbiol Biotechnol

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“…Brazil is responsible for 1/3 of the world's sugarcane production (Saccharum offificinarum L.) and the second largest ethanol producer, in 2016, only behind the US (Fernandes et al, 2020;Rigotti et al, 2017). It currently has 418 sugar and alcohol mills, of which 73.20% are located in the central-south region comprising the state of SP, MG, GO, PR and MS (NovaCana, 2021).…”

Section: Introductionmentioning

confidence: 99%

Use of cerrado plants as an alternative in the control of bacterial contamination in the alcoholic fermentation process

Lima,

Dias,

Fonseca

et al. 2024

Braz. J. Biol.

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Bacterial contamination causes irreparable losses in the performance of alcoholic fermentation. Antibiotics are used to control these microorganisms, but they generate residues and cause microbial resistance. Today the only commercial product used by the mills is hops, but it is very expensive. As an alternative, the objective of this work was to evaluate the feasibility of using extracts from plants grown in the Cerrado for antimicrobial control during an alcoholic fermentation to replace antibiotics. Hydraethanolic extracts of leaves and essential oil of the following species were tested: Schinus terebinthifolius Raddi, Serjania erecta, Serjania marginata, Campomanesia adamantium and Syzygium cumini. Only the extract of Serjania marginata did not show any activity against the bacterium Bacillus sp. Both the essential oils as well as the hydroalcoholic extracts of S. terebinthifolius and C. adamantium and the extract of S. erecta showed antibacterial activity without harming the yeast, with potential to replace the hops.

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“…In addition, these bacteria can form biofilms on the tanks, pipes, heat exchangers and valves in the ethanol-producing units. Therefore, the use of antimicrobials becomes a necessity (Rigotti et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Mandarin essential oil as an antimicrobial in ethanolic fermentation: Effects on Limosilactobacillus fermentum and Saccharomyces cerevisiae

Varano¹,

Shirahigue²,

Azevedo

et al. 2022

Letters in Applied Microbiology

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Significance and Impact of the Study: Several novel strategies have been explored so far to replace sulfuric acid for cell treatment in the bioethanol industry. Citrus essential oils are reported to be useful in several applications, although none of the reported works involve the application of these oils for combating bacterial contamination in bioethanol production. The present study demonstrated that mandarin essential oil diluted in water could be as effective as an acid treatment against Limosilactobacillus fermentum, and could even achieve the complete elimination of bacterial cells depending on the concentration. However, when L. fermentum was co-cultured with Saccharomyces cerevisiae, the effect on the former was reduced. Nonetheless, the high antimicrobial efficacy of mandarin essential oil against L. fermentum warrants further research for a complete understanding.

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Combination of natural antimicrobials and sodium dodecyl sulfate for disruption of biofilms formed by contaminant bacteria isolated from sugarcane mills

Cited by 14 publications

References 36 publications

Synthetic and biological surfactant effects on freshwater biofilm community composition and metabolic activity

Synthetic and biological surfactant effects on freshwater biofilm community composition and metabolic activity

Use of cerrado plants as an alternative in the control of bacterial contamination in the alcoholic fermentation process

Mandarin essential oil as an antimicrobial in ethanolic fermentation: Effects on Limosilactobacillus fermentum and Saccharomyces cerevisiae

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