Advances in biofouling mitigation: A review

Gule, Nonjabulo P.; Begum, Nusrat M.; Klumperman, Bert

doi:10.1080/10643389.2015.1114444

Cited by 87 publications

(46 citation statements)

References 80 publications

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“…18 A flask was charged with hydroxypropylguanidine 12 (2.00 g, 6.30 mmol), dissolved in CH 2 Cl 2 (11.0 mL) and pyridine (3.06 mL, 37.8 mmol) was added. Dess-Martin periodinane (DMP) (3.48 g, 8.19 mmol) was taken up in CH 2 Cl 2 (30.0 mL) in a separate flask.…”

Section: Methodsmentioning

confidence: 99%

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Synthesis of monoalkylidene diketopiperazines and application to the synthesis of barettin

2017

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The synthesis of barettin, a selective serotonin receptor inhibitor and potent antibiofouling natural product, is described. The synthesis starts with the diketopiperazine nucleus intact and the side chains are installed using iterative aldol condensations. The route represents a general strategy for synthesis of a wide array of mono-alkylidene diketopiperazine structures, including those derived from non-canonical amino acid residues.

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Section: Methodsmentioning

confidence: 99%

“…0.15 μM), has produced negative health and environmental consequences and has led to bioaccumulation of toxic organotin reagents in marine ecosystems. 18 The UN ban on organotin additives in paints took effect in 2008 and, as a result, natural products with anti-biofouling properties such as 8 have received renewed attention. 19 …”

Section: Introductionmentioning

confidence: 99%

Synthesis of monoalkylidene diketopiperazines and application to the synthesis of barettin

2017

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“…The majority of these nanostructures are made with nanolithography, typically on silicon surfaces,[48] or by nanoparticle deposition on surfaces. [49] Among the most common antifouling materials are Carbon Nanotubes,[50] mesoporous and nanoporous silica,[51,52] and Alumina.…”

Section: Introductionmentioning

confidence: 99%

Nanotechnology to the rescue: using nano-enabled approaches in microbiological food safety and quality

Eleftheriadou

Pyrgiotakis²,

Demokritou³

2017

Current Opinion in Biotechnology

139

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Food safety and quality assurance is entering a new era. Interventions along the food supply chain must become more efficient in safeguarding public health and the environment and must address numerous challenges and new consumption trends. Current methods of microbial control to assure the safety of food and minimize microbial spoilage have each shown inefficiencies. Nanotechnology is a rapidly expanding area in the agri/feed/food sector. Nano-enabled approaches such as antimicrobial food-contact surfaces/packaging, nano-enabled sensors for rapid pathogen/contaminant detection and nano-delivered biocidal methods, currently on the market or at a developmental stage, show great potential for the food industry. Concerns on potential risks to human health and the environment posed by use of engineered nanomaterials (ENMs) in food applications must, however, be adequately evaluated at the developmental stage to ensure consumer's acceptance.

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“…The water used in industrial processes is naturally contaminated with microorganisms, allowing biofilm formation. Biofilms can cause negative impacts such as reduced operational efficacy in heat exchangers, increased operational pressure in desalination plants that leads to higher energy consumption, blockage of pipes in food industry and accelerated metal corrosion (Bucs, Linares, van Loosdrecht, Kruithof, and Vrouwenvelder, 2014;Gule, Begum, and Klumperman, 2016). In engineered systems, detrimental biofilm formation is usually termed biofouling or biological fouling.…”

Section: Introductionmentioning

confidence: 99%

Combination of selected enzymes with cetyltrimethylammonium bromide in biofilm inactivation, removal and regrowth

Araújo

Machado

Meireles

et al. 2017

Food Research International

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Enzymes are considered an innovative and environmentally friendly approach for biofilm control due to their lytic and dispersal activities. In this study, four enzymes (β-glucanase, α-amylase, lipase and protease) were tested separately and in combination with the quaternary ammonium compound cetyltrimethylammonium bromide (CTAB) to control flow-generated biofilms of Pseudomonas fluorescens. The four enzymes caused modest reduction of biofilm colony forming units (CFU). Protease, β-glucanase and α-amylase also caused modest biofilm removal. CTAB combined with either β-glucanase or α-amylase increased biofilm removal. Its combination with either β-glucanase or protease increased CFU reduction. However, CTAB-protease combination was antagonist in biofilm removal. Long-term effects in biofilm mass reduction were observed after protease exposure. In contrast, biofilms treated with β-glucanase were able to regrow significantly after exposure. Moreover, short-term respirometry tests with planktonic cells were performed to understand the effects of enzymes and their combination with CTAB on P. fluorescens viability. Protease and lipase demonstrated antimicrobial action, while α-amylase increased bacterial metabolic activity. The combination of CTAB with either protease or α-amylase was antagonistic, decreasing the antimicrobial action of CTAB. The overall results demonstrate a modest effect of the selected enzymes in biofilm control, either when applied alone or each one in combination with CTAB. Total biofilm removal or CFU reduction was not achieved and, in some cases, the use of enzymes antagonized the effects of CTAB. The results also propose that complementary tests, to characterize biofilm integrity and microbial viability, are required when someone is trying to assess the role of novel biocide - enzyme mixtures for effective biofilm control.

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Advances in biofouling mitigation: A review

Cited by 87 publications

References 80 publications

Synthesis of monoalkylidene diketopiperazines and application to the synthesis of barettin

Synthesis of monoalkylidene diketopiperazines and application to the synthesis of barettin

Nanotechnology to the rescue: using nano-enabled approaches in microbiological food safety and quality

Combination of selected enzymes with cetyltrimethylammonium bromide in biofilm inactivation, removal and regrowth

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