Effect of non-thermal plasma technology on microbial inactivation and total phenolic content of a model liquid food system and black pepper grains

Charoux, Clémentine M.G.; Free, Louis; Hinds, Laura M.; Vijayaraghavan, Rajani K.; Daniels, Stephen; O’Donnell, Colm P.; Tiwari, Brijesh K.

doi:10.1016/j.lwt.2019.108716

Cited by 51 publications

(32 citation statements)

References 27 publications

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“…Non-thermal inactivation techniques were designed to obtain safe and stable foods with preserved overall quality and value while maintaining their sensory characteristics close to those of their fresh equivalents. In this context, technologies such as electric field, ultrasonication, high pressure, X-rays, ionizing radiation, high-voltage electrical discharge, pulsed light, magnetic field heating, moderate magnetic field 55 and plasma technology 57 could all potentially be applied to inactivate microorganisms and generate postbiotics.…”

Section: Technological Factors In Characterizationmentioning

confidence: 99%

The International Scientific Association of Probiotics and Prebiotics (ISAPP) consensus statement on the definition and scope of postbiotics

Salminen

Collado

Endo

et al. 2021

Nat Rev Gastroenterol Hepatol

1,107

616

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In 2019, the International Scientific Association for Probiotics and Prebiotics (ISAPP) convened a panel of experts specializing in nutrition, microbial physiology, gastroenterology, paediatrics, food science and microbiology to review the definition and scope of postbiotics. The term ‘postbiotics’ is increasingly found in the scientific literature and on commercial products, yet is inconsistently used and lacks a clear definition. The purpose of this panel was to consider the scientific, commercial and regulatory parameters encompassing this emerging term, propose a useful definition and thereby establish a foundation for future developments. The panel defined a postbiotic as a “preparation of inanimate microorganisms and/or their components that confers a health benefit on the host”. Effective postbiotics must contain inactivated microbial cells or cell components, with or without metabolites, that contribute to observed health benefits. The panel also discussed existing evidence of health-promoting effects of postbiotics, potential mechanisms of action, levels of evidence required to meet the stated definition, safety and implications for stakeholders. The panel determined that a definition of postbiotics is useful so that scientists, clinical triallists, industry, regulators and consumers have common ground for future activity in this area. A generally accepted definition will hopefully lead to regulatory clarity and promote innovation and the development of new postbiotic products.

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Section: Technological Factors In Characterizationmentioning

confidence: 99%

The International Scientific Association of Probiotics and Prebiotics (ISAPP) consensus statement on the definition and scope of postbiotics

Salminen

Collado

Endo

et al. 2021

Nat Rev Gastroenterol Hepatol

1,107

616

View full text Add to dashboard Cite

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“…Cold plasma treatments were carried out using a system sourced from the National Centre for Plasma Science and Technology at Dublin City University (Glasnevin, Dublin 9, Ireland).This system is elaborately described in previous publication 21 . Plasma generated within this region exited through a small gap in the ground electrode entering ambient conditions in the plume region where it came into contact with treatment samples (Fig.…”

Section: Methodsmentioning

confidence: 99%

“…Recently, atmospheric plasma jet is widely used plasma discharge, which uses air and special electrode design to prevent arcing. Due to its design and configuration, plasma jet has been applied for biomedical 19 , surface decontamination 20 or food system 21 . Atmospheric plasma jet is an efficient technology with high chemical activity that inactivates wide range of microorganisms 20,22 .…”

mentioning

confidence: 99%

Antimicrobial effects of airborne acoustic ultrasound and plasma activated water from cold and thermal plasma systems on biofilms

Charoux

Patange

Hinds

et al. 2020

Sci Rep

Self Cite

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Bacterial biofilms are difficult to inactivate due to their high antimicrobial resistance. Therefore, new approaches are required for more effective bacterial biofilm inactivation. Airborne acoustic ultrasound improves bactericidal or bacteriostatic activity which is safe and environmentally friendly. While, plasma activated water (PAW) is attracting increasing attention due to its strong antimicrobial properties. This study determined efficacy of combined airborne acoustic ultrasound and plasma activated water from both cold and thermal plasma systems in inactivating Escherichia coli K12 biofilms. The application of airborne acoustic ultrasound (15 min) alone was significantly more effective in reducing E. coli counts in 48 and 72 h biofilms compared to 30 min treatment with PAW. The effect of airborne acoustic ultrasound was more pronounced when used in combination with PAW. Airborne acoustic ultrasound treatment for 15 min of the E. coli biofilm followed by treatment with PAW significantly reduced the bacterial count by 2.2—2.62 Log10 CFU/mL when compared to control biofilm treated with distilled water. This study demonstrates that the synergistic effects of airborne acoustic ultrasound and PAW for enhanced antimicrobial effects. These technologies have the potential to prevent and control biofilm formation in food and bio-medical applications.

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“…Reduce the allergenicity of food proteins [154] High-frequency low-power ultrasound has minimal physical and/or chemical effects on food constituents [157,158] Cold or nonthermal plasma treatment Inactivation of microorganisms [159,160] No effect on nutritional properties [161] Improve technological properties [162] Electrolyzed water Reduce the natural microbiota, no effect on nutritional properties [163] Chemical Liquid chemical agents (acids) Changes in nutrient status and sensory properties, food safety concerns [10,164] Enzymes Enzyme specific effects on quality, reduction in safety risks [165] Gaseous chemicals (ammonia, ozone)…”

Section: Potentials and Challenges Of Upscaling Experimental Detoxifying Methodsmentioning

confidence: 99%

Physical and Chemical Methods for Reduction in Aflatoxin Content of Feed and Food

Sípos

Peles

Brassó

et al. 2021

Toxins

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Aflatoxins (AFs) are among the most harmful fungal secondary metabolites imposing serious health risks on both household animals and humans. The more frequent occurrence of aflatoxins in the feed and food chain is clearly foreseeable as a consequence of the extreme weather conditions recorded most recently worldwide. Furthermore, production parameters, such as unadjusted variety use and improper cultural practices, can also increase the incidence of contamination. In current aflatoxin control measures, emphasis is put on prevention including a plethora of pre-harvest methods, introduced to control Aspergillus infestations and to avoid the deleterious effects of aflatoxins on public health. Nevertheless, the continuous evaluation and improvement of post-harvest methods to combat these hazardous secondary metabolites are also required. Already in-use and emerging physical methods, such as pulsed electric fields and other nonthermal treatments as well as interventions with chemical agents such as acids, enzymes, gases, and absorbents in animal husbandry have been demonstrated as effective in reducing mycotoxins in feed and food. Although most of them have no disadvantageous effect either on nutritional properties or food safety, further research is needed to ensure the expected efficacy. Nevertheless, we can envisage the rapid spread of these easy-to-use, cost-effective, and safe post-harvest tools during storage and food processing.

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Effect of non-thermal plasma technology on microbial inactivation and total phenolic content of a model liquid food system and black pepper grains

Cited by 51 publications

References 27 publications

The International Scientific Association of Probiotics and Prebiotics (ISAPP) consensus statement on the definition and scope of postbiotics

The International Scientific Association of Probiotics and Prebiotics (ISAPP) consensus statement on the definition and scope of postbiotics

Antimicrobial effects of airborne acoustic ultrasound and plasma activated water from cold and thermal plasma systems on biofilms

Physical and Chemical Methods for Reduction in Aflatoxin Content of Feed and Food

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