Disinfection using ozone microbubbles to inactivate Fusarium oxysporum f. sp. melonis and Pectobacterium carotovorum subsp. carotovorum

Kobayashi, Fumiyuki; Ikeura, Hiromi; Ohsato, Shuichi; Goto, T.; Tamaki, Masahiko

doi:10.1016/j.cropro.2011.07.018

Cited by 51 publications

(27 citation statements)

References 20 publications

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“…The direct effects of ozone on plant organs have not been found yet, it means that ozone may have harmful effects on product quality. However, ozone has been approved by the American Food and Drug Administration for direct use in human food, drugs, and cosmetics and also as compounds in food contact materials such as cutting boards and other surfaces that come in contact with unprotected food (Kobayashi et al, 2011).…”

Section: Results and Disscussionmentioning

confidence: 99%

“…Also, ozone has led to a prolonged shelf life of fruits and vegetables by reducing the populations of pathogenic microorganisms in post-harvest diseases (Ferreira et al, 2017;Sarig et al, 1996). Ozone micro-bubbles (aqueous ozone) were used as a disinfecting approach against phytopathogens in hydroponic culture solutions (Kobayashi et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Response of root-knot nematode Meloidogyne javanica to ozone

et al. 2019

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Root-knot nematode, Meloidogyne javanica is a major causal agent of plant diseases on summer crops in fields and greenhouses. In order to reduce environmental concerns, compounds having pesticidal capacity with insignificant residue can be a good alternative to synthetic pesticides. This study was undertaken to investigate the nematicidal capability of ozone under Petri dish (in vitro) and pot (in the rhizosphere of tomato seedlings cv. Super Chief) conditions. The experiments were conducted based on Completely Randomized Design in four replicates with two antimicrobial materials, Cadusafos (0.5, 1.0, 1.5, 2.0, 2.5 and 3 g kg-1 soil) and ozone (0.05, 0.1, 0.2, 0.4, 0.8 and 1.6 g kg-1 soil). Results confirmed the significant in vitro controlling effect of ozone on nematode egg (85%, in 0.4 g kg-1 soil) and second stage juvenile (72%, in 0.4 g kg-1 soil) populations. Also a toxic effect of ozone was observed on the nematode pathogenicity, i.e. galling (83%, in 0.4 g kg-1 soil), on tomato root in pot assays. Plant morphological traits (i.e. root fresh weight, foliage fresh weight, and stem length) were not significantly affected by ozone. Therefore, taking into account the principles of safety in the application of ozone, this material can be suggested as an alternative nematicide, at least at limited and controlled condition.

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Section: Results and Disscussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Response of root-knot nematode Meloidogyne javanica to ozone

et al. 2019

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“…For instance, microbubbles have high-specific surface area (the ratio of surface area to the volume), allowing the high efficiency of pollutant adhesion [7,10]. Due to its high effectiveness of pollutant removal, microbubble floatation has drawn attention for not only wastewater treatment [11][12][13] but also water purification [14,15] and pretreatment for seawater desalination [16][17][18].…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

Influence of microbial floatation on membrane fouling due to particles and organic matters in submerged microfiltration

Pissibanganga

Jung

Choi

et al. 2016

Desalination and Water Treatment

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A B S T R A C TThis study investigated the effect of microbubble floatation on the fouling of microfiltration membranes. Synthetic feed solutions containing either kaolin or alginic acid were used for the membrane filtration tests. A dissolve air flotation system using a pump-type microbubble generator was adopted as a pretreatment for microfiltration system. A multi-array submerged membrane filtration system was used to monitor the changes in transmembrane pressure with time under various operating conditions. Turbidity removal efficiency, particle counts, and fouling rate for the microfiltration membrane were measured after the microfiltration floatation. The effect of coagulant dose on the treated water quality and membrane performance was also investigated. Results showed that microbubble floatation without coagulant was effective to reduce membrane fouling by kaolin but it was not very effective to control fouling by alginate. With the aid of coagulant, microbubble flotation could control fouling by alginate. This is attributed to the removal mechanisms of foulants by microbubble floatation: suspended particles can be separated by the microbubbles without coagulant but dissolved organics can be only removed by the combined effect of coagulation and floatation.

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“…The use of microbubble is not limited to oxygen transfer, it is also used to improve the ozonation in various liquid medium [13][14][15]. The disinfectant activity of microbubbles provides an alternate way to use them against phytopathogens in infected plant roots in hydroponic culture solutions [16]. The hydrodynamic characteristics of microbubble also remains a subject of interest.…”

Section: Introductionmentioning

confidence: 99%