The role of metals in the deposition of long‐lived reactive oxygen and nitrogen species into the plasma‐activated liquids

Kutasi, Kinga; Bencs, László; Tóth, Z.; Milošević, Slobodan

doi:10.1002/ppap.202200143

Cited by 11 publications

(14 citation statements)

References 37 publications

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“…In addition, due to the presence of NO − 2 and acidity, the low-concentration H 2 O 2 could be consumed (Reaction 20). To ensure the presence of NO − 2 and H 2 O 2 in abundance, it has been studied by retarding the acidification of PAW solution, thus impeding Reactions 20 and 21 [52]. The massive amount of long-lived RONS generated by this method could be used to provide nutrients for plant growth rather than enabling a strong bactericidal efficacy due to the lack of stronger acidity (pH < 3).…”

Section: Resultsmentioning

confidence: 99%

Ultralong-lasting plasma-activated water: production and control mechanisms

Ran,

Zhou,

Wang

et al. 2024

Plasma Sources Sci. Technol.

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Despite the rapidly growing interest stemming from the broad-spectrum, high inactivation capacity, and environmental friendliness of the plasma-activated water (PAW), practical applications are limited because of the PAW’s short lifetime. While low-temperature storage can extend the lifetime, but the freezing and thawing processes are energy- and labor-intense and are generally not suitable for large-scale applications such as environmental and biomedical disinfection. This work addresses this issue by developing the ultra-long-life PAW at room temperature. The innovative approach is based on using DC needle-water discharges, wherein the gaseous products are blown out and absorbed separately by a gas flow. By simply adjusting the voltage and gas flow rates, two distinctive types of PAW with acidic hydrogen peroxide and nitrite as the main products are produced and separated in the discharge chamber and gas bubbling bottle. Intentional mixing of these two PAWs causes a chain chemical reaction dominated by peroxynitrite (ONOOH). This reaction can generate a variety of short-lived reactive species, thereby achieving the ultralong-lasting PAW with very stable inactivation ability. This study further demonstrates the ability to effectively control the reaction products in both chambers and provides insights into the secondary activation mechanism of short-lived reactive species stimulated by ONOOH.

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Section: Resultsmentioning

confidence: 99%

Ultralong-lasting plasma-activated water: production and control mechanisms

Ran,

Zhou,

Wang

et al. 2024

Plasma Sources Sci. Technol.

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“…Additionally, Lee et al (2022) reported that H 2 O 2 was undetected in PAW via the microwave plasma system; however, ONOO − was generated as an isomer of NO − 3 . Moreover, Kutasi et al (2022) reported that adding metals, such as Mg or Zn, prior to PAW generation via a surface-wave microwave discharge can be beneficial, particularly in increasing the pH of PAW and maintain the RONS concentrations during storage.…”

Section: 4mentioning

confidence: 99%

“…Moreover, Kutasi et al. (2022) reported that adding metals, such as Mg or Zn, prior to PAW generation via a surface‐wave microwave discharge can be beneficial, particularly in increasing the pH of PAW and maintain the RONS concentrations during storage.…”

Section: Generation Of Pawmentioning

confidence: 99%

A review on plasma‐activated water and its application in the meat industry

Hadinoto,

Niemira,

Trujillo

2023

Comp Rev Food Sci Food Safe

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Meat is a nutritious food with a short shelf life, making it challenging to ensure safety, quality, and nutritional value. Foodborne pathogens and oxidation are the main concerns that lead to health risks and economic losses. Conventional approaches like hot water, steam pasteurization, and chemical washes for meat decontamination improve safety but cause nutritional and quality issues. Plasma‐activated water (PAW) is a potential alternative to thermal treatment that can reduce oxidation and microbial growth, an essential factor in ensuring safety, quality, and nutritional value. This review explores the different types of PAW and their physiochemical properties. It also outlines the reaction pathways involved in the generation of short‐lived and long‐lived reactive nitrogen and oxygen species (RONS) in PAW, which contribute to its antimicrobial abilities. The review also highlights current studies on PAW inactivation against various planktonic bacteria, as well as critical processing parameters that can improve PAW inactivation efficacy. Promising applications of PAW for meat curing, thawing, and decontamination are discussed, with emphasis on the need to understand how RONS in PAW affect meat quality. Recent reports on combining PAW with ultrasound, mild heating, and non‐thermal plasma to improve inactivation efficacy are also presented. Finally, the need to develop energy‐efficient systems for the production and scalability of PAW is discussed for its use as a potential meat disinfectant without compromising meat quality.

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“…The measurement error was set to less than 10%. The ageing dynamics of PAW depend on the pH, which was controlled by adding metal ion concentration to the water [26,27]. The Mg ions were added by inserting a solid piece of magnesium (5 g) immediately during the plasma treatment and left in the liquid for one hour after the treatment.…”

Section: Preparing Of Plasma Activated Watermentioning

confidence: 99%

Influence of Seed Treated by Plasma Activated Water on the Growth of Lactuca sativa L.

et al. 2022

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The aim of this work was to determine if PAW (Plasma Activated Water) seed treatment and growing conditions could have positive effects on lettuce seedlings and growth. The paper presents the results of a pot experiment on lettuce (Lactuca sativa L.) cultivation in greenhouse and field conditions after seed treatment with PAW. The experiment was conducted in two consecutive seasons in 2021 and 2022 and the following growth parameters were measured: head mass, rosette height, rosette width, number of leaves, root mass and root length. As a result of the study, it was found that lettuces grown in the greenhouse from PAW treated seeds had higher results in the first measurement for both cultivars (mass 32.26%, diameter 19.01%, number of leaves 13.49% and height 24.01%), while there were no statistically significant effects on the root system. The lowest results were obtained in untreated and field-grown plants. In addition, plant dry matter was measured and it was found that plants grown from PAW treated seeds had a higher percentage of dry matter (11.51% in 2021, and 11.58% in 2022). It was also found that cultivation in greenhouse resulted in a better quality of plants than the cultivation in the open field.

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The role of metals in the deposition of long‐lived reactive oxygen and nitrogen species into the plasma‐activated liquids

Cited by 11 publications

References 37 publications

Ultralong-lasting plasma-activated water: production and control mechanisms

Ultralong-lasting plasma-activated water: production and control mechanisms

A review on plasma‐activated water and its application in the meat industry

Influence of Seed Treated by Plasma Activated Water on the Growth of Lactuca sativa L.

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