Development of automatically controlled corona plasma system for inactivation of pathogen in hydroponic cultivation medium of tomato

Takahashi, Katsuyuki; Saito, Yoshinori; Oikawa, Rikuya; Okumura, Takamasa; Takaki, Koichi; Fujio, Takuya

doi:10.1016/j.elstat.2017.12.006

Cited by 31 publications

(19 citation statements)

References 27 publications

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Section: Plant Growth and Effects Of Ptwmentioning

confidence: 99%

“…The authors also demonstrated the use of NTP to manage pathogenic bacteria ( Ralstonia solanacearum ) and microflora in hydroponic systems. [ 148 ]…”

Section: Plant Growth and Effects Of Ptwmentioning

confidence: 99%

“…PTW is typically applied to hydroponic systems via the treatment of bulk or circulating water before feeding the plants (Table 4). [50,56,141,148] These studies used PTW mixed with a diluted nutrient solution or an amino acid fertilizer. Gamaleev et al [56] treated a flowing solution (10 ml min −1 ) of 80-mM L-Phe dissolved in a 2-mmol L −1 phosphate buffer using a scalable glow discharge.…”

Section: Soilless Media-plasma In Hydroponic Solutionsmentioning

confidence: 99%

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Plasma agriculture: Review from the perspective of the plant and its ecosystem

Ranieri

Sponsel

Kizer

et al. 2020

Plasma Processes & Polymers

135

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Plasma agriculture details the role of nonthermal plasma in the development of plants from seeds to crops. Several publications reported enhanced plant growth, improved stress tolerance, and antimicrobial effects of plasma treatment and plasma‐treated water. In this review, we present an overview of the recent plasma agriculture literature and put it in the context of the plant needs and the effects on the plant ecosystem. We will discuss key developmental stages of plants and their needs, the different growth environments from hydroponics to soilless and soil substrates, and the plant microbiome. This review provides the context to design plasma‐based fertilization strategies to address the needs of plants and their ecosystem.

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Section: Plant Growth and Effects Of Ptwmentioning

confidence: 99%

“…The authors also demonstrated the use of NTP to manage pathogenic bacteria ( Ralstonia solanacearum ) and microflora in hydroponic systems. [ 148 ]…”

Section: Plant Growth and Effects Of Ptwmentioning

confidence: 99%

Section: Soilless Media-plasma In Hydroponic Solutionsmentioning

confidence: 99%

See 1 more Smart Citation

Plasma agriculture: Review from the perspective of the plant and its ecosystem

Ranieri

Sponsel

Kizer

et al. 2020

Plasma Processes & Polymers

135

View full text Add to dashboard Cite

show abstract

“…Hydroponic farms could take this task into their own hands or ask suppliers for verification of microbial counts on the plugs. Assuming that there could be other sources of contamination in a system, another option is to continually treat recirculating water with corona plasma (Kang et al 2015;Takahashi et al 2018). While hydroponic produce is not commonly washed after harvest, the introduction of a Figure 3 Enumeration of yeast (dark grey) and mould (light grey) in water (a) and lettuce (b) samples from a closed hydroponic production system.…”

Section: Yeast and Mould (Ym)mentioning

confidence: 99%

Sources of food contamination in a closed hydroponic system

Dankwa

Machado

2019

Lett Appl Microbiol

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This study investigated potential contamination sources in a commercial, closed hydroponic system. Water, substrate and lettuce (Lactuca sativa) samples were evaluated for microbiological indicator populations, including aerobic plate count (APC), coliform bacteria (CB) and yeast and mould (YM). Listeria spp. detection via cultural enrichment and agglutination was negative for all samples. Peat moss substrate (postharvest) had the highest counts for APC (6·8 log CFU per g), CB (4·5 log MPN per g) and YM (5·1 and 4·8 log CFU per g respectively). Roots embedded in plugs demonstrated counts for all populations nearly as high as the substrate. Among water samples, a seedling water reservoir housing germinated plants yielded the highest count for APC (5·1 log CFU per g) and CB (2·4 log MPN per g) likely due to the large numbers of plugs and their close proximity in the reservoir. Harvested lettuce leaves demonstrated higher APC (4·1 log CFU per g) than preharvest leaves (1·7 log CFU per g) due to the transfer of microbes from the root ball. These data suggest that substrates are a significant potential source of contamination in hydroponic systems and likely facilitate microbial transfer to harvested leaves. There is, therefore, the need to further investigate mitigation of potential contamination events. Significance and Impact of the Study Hydroponic production is known to provide safe, clean produce. This study, however, suggests that the hydroponic substrate (peat moss plug) is a possible source of contamination in the hydroponic system. This finding is important as most harvested hydroponic lettuces are packaged and sold with substrate and root ball intact. This implies a high probability of microbial transfer from the root ball to edible harvested lettuce leaves.

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“…The performance of the system on bacteria inactivation in the nutrient solution was evaluated in a continuous treatment system operation and the results showed that the standard plate count for background microflora and R. solanacearum is drastically reduced by the plasma treatment and is not detected after 8 days treatment. The nutrient solution was decontaminated by 4 log cycle with plasma treatment under the continuous operation condition [20].…”

Section: Other Technologies Used In Hydroponic Systemsmentioning

confidence: 99%

Automation and Robotics Used in Hydroponic System

Luna-Maldonado¹,

Reyes²,

Breceda³

et al. 2020

Urban Horticulture - Necessity of the Future

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Hydroponic system requires periodic labor, a systematic approach, repetitive motion and a structured environment. Automation, robotics and IoT have allowed farmers to monitoring all the variables in plant, root zone and environment under hydroponics. This research introduces findings in design with real time operating systems based on microcontrollers; pH fuzzy logic control system for nutrient solution in embed and flow hydroponic culture; hydroponic system in combination with automated drip irrigation; expert system-based automation system; automated hydroponics nutrition plants systems; hydroponic management and monitoring system for an intelligent hydroponic system using internet of things and web technology; neural network-based fault detection in hydroponics; additional technologies implemented in hydroponic systems and robotics in hydroponic systems. The above advances will improve the efficiency of hydroponics to increase the quality and quantity of the produce and pose an opportunity for the growth of the hydroponics market in near future.

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Development of automatically controlled corona plasma system for inactivation of pathogen in hydroponic cultivation medium of tomato

Cited by 31 publications

References 27 publications

Plasma agriculture: Review from the perspective of the plant and its ecosystem

Plasma agriculture: Review from the perspective of the plant and its ecosystem

Sources of food contamination in a closed hydroponic system

Automation and Robotics Used in Hydroponic System

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