Exposure to chlorine affects the extracellular polymeric substance production and cell surface hydrophobicity in biofilm bacteria

Rathi, R.; Satheesh, Sathianeson

doi:10.2478/s13545-012-0035-x

Cited by 8 publications

(1 citation statement)

References 29 publications

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“…Present results showed that garlic extracts, nisin, ε-polylysine, and citric acid decreased the growth, EPS production, bacterial surface hydrophobicity, and biofilm formtion of B. subtilis. This is in agreement with previous studies which found that bacterial biofilm and the adhesion rate on surfaces can be reduced by reducing the production of EPS with antibacterial substance (Branda et al, 2006;Lou, Wang, & Tang, 2017;Rathi & Satheesh, 2012).…”

Section: Re Sults and Discussionsupporting

confidence: 93%

Comparative antibacterial and antibiofilm activities of garlic extracts, nisin, ε‐polylysine, and citric acid on Bacillus subtilis

Zhang

Cai

et al. 2019

J Food Process Preserv

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Bacillus subtilis shows high contamination and antibiotic resistance in the food industry due to their biofilm‐forming capacity. This study aimed to search a biopreservative to inhibit the biofilm formation of B. subtilis. The effect of garlic extracts, nisin, ε‐polylysine, and citric acid on bacterial growth, cell surface hydrophobicity, and cell morphology were observed to provide insight into the antibiofilm mechanisms. Results showed that nisin, ε‐polylysine, and citric acid completely inhibited the growth and biofilm formation of B. subtilis at 0.15, 0.09, and 1.5 mg/ml, respectively. Garlic extracts inhibited cell elongation, but cannot completely inhibit the biofilm formation even at 1.8 mg/ml. The antibiofilm activities of four biopreservatives were due to antibacterial activities, reduction in extracellular polymeric substances production, and cell surface hydrophobicity. Among these four biopreservatives, ε‐polylysine, which caused cell to collapse, had the highest antibacterial and antibiofilm activities followed by nisin, citric acid, and garlic extracts. Practical applications Bacillus subtilis shows high contamination and antibiotic resistance due to their biofilm‐forming capacity. Finding a biopreservative to inhibit the growth and biofilm formation of B. subtilis was important in food industry. This study could pave the way for controlling B. subtilis in planktonic and biofilm states.

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Section: Re Sults and Discussionsupporting

confidence: 93%

Comparative antibacterial and antibiofilm activities of garlic extracts, nisin, ε‐polylysine, and citric acid on Bacillus subtilis

Zhang

Cai

et al. 2019

J Food Process Preserv

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Chlorine stress mediates microbial surface attachment in drinking water systems

Liu

Yang

Jin

et al. 2014

Appl Microbiol Biotechnol

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Microbial attachment to drinking water pipe surfaces facilitates pathogen survival and deteriorates disinfection performance, directly threatening the safety of drinking water. Notwithstanding that the formation of biofilm has been studied for decades, the underlying mechanisms for the origins of microbial surface attachment in biofilm development in drinking water pipelines remain largely elusive. We combined experimental and mathematical methods to investigate the role of environmental stress-mediated cell motility on microbial surface attachment in chlorination-stressed drinking water distribution systems. Results show that at low levels of disinfectant (0.0-1.0 mg/L), the presence of chlorine promotes initiation of microbial surface attachment, while higher amounts of disinfectant (>1.0 mg/L) inhibit microbial attachment. The proposed mathematical model further demonstrates that chlorination stress (0.0-5.0 mg/L)-mediated microbial cell motility regulates the frequency of cell-wall collision and thereby controls initial microbial surface attachment. The results reveal that transport processes and decay patterns of chlorine in drinking water pipelines regulate microbial cell motility and, thus, control initial surface cell attachment. It provides a mechanistic understanding of microbial attachment shaped by environmental disinfection stress and leads to new insights into microbial safety protocols in water distribution systems.

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Impact of pipe material and chlorination on the biofilm structure and microbial communities

Zhang

Lin

Jiang³

et al. 2022

Chemosphere

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Exposure to chlorine affects the extracellular polymeric substance production and cell surface hydrophobicity in biofilm bacteria

Cited by 8 publications

References 29 publications

Comparative antibacterial and antibiofilm activities of garlic extracts, nisin, ε‐polylysine, and citric acid on Bacillus subtilis

Comparative antibacterial and antibiofilm activities of garlic extracts, nisin, ε‐polylysine, and citric acid on Bacillus subtilis

Chlorine stress mediates microbial surface attachment in drinking water systems

Impact of pipe material and chlorination on the biofilm structure and microbial communities

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