Controlling deterioration of high-moisture maize with ozone treatment

White, S.; Murphy, Patrick T.; Bern, Carl J.; Leeuwen, J. van

doi:10.1016/j.jspr.2009.07.002

Cited by 37 publications

(19 citation statements)

References 14 publications

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“…Egg mortality was also adversely affected by increase in moisture content. Results obtained for low efficacy of ozone in high‐moisture grain were reported also in a previous study . Ozone concentration and exposure time have a significant positive effect on egg mortality, but eggs, compared to adult insects, pupae and larvae, require lower ozone concentrations and shorter exposure to reach the same mortality rate.…”

Section: Resultssupporting

confidence: 77%

“…Results obtained for low efficacy of ozone in high-moisture grain were reported also in a previous study. 37 Ozone concentration and exposure time have a significant positive effect on egg mortality, but eggs, compared to adult insects, pupae and larvae, require lower ozone concentrations and shorter exposure to reach the same mortality rate. Eggs of R. dominica are deposited in clusters over the grain surface, where they are most readily exposed to ozone.…”

Section: Effect Of Process Variables On Egg Mortalitymentioning

confidence: 99%

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Disinfestation of stored wheat grain infested with Rhyzopertha dominica by ozone treatment: process optimization and impact on grain properties

et al. 2019

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BACKGROUND Ozone is a highly oxidative gas that has a long history of safe use as a disinfectant and sanitizer from producers of pharmaceuticals and many other organic compounds. In the current work, disinfestation of stored wheat grain infested with a common insect, Rhyzopertha dominica, was attempted through ozone (O3) treatment as an alternative to chemical fumigants. RESULTS The optimized treatment conditions for ozone fumigation of stored wheat grain were 12% (w/w) grain moisture, 2.5 g m−3 ozone concentration and 8 h of treatment. The mortality of R. dominica adults, pupae, larvae and eggs was 97, 100, 99 and 100%, respectively. Moisture and protein content of the ozone‐treated wheat was found to be lower as compared to infested wheat. Microstructural changes in the treated samples were clearly visible on scanning electron microscopy images, whereas minimal changes at the molecular level and of rheological parameters were evident based on Fourier transform infrared spectroscopy peak and rheometry data. CONCLUSION Ozone was found to be an effective reagent for disinfestation, aimed at all life stages of R. dominica in stored wheat grain, that leaves no residue behind. Rotational strategies can be applied to obtain increased mortality while maintaining the usability of the grain for different purposes. © 2019 Society of Chemical Industry

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Section: Resultssupporting

confidence: 77%

Section: Effect Of Process Variables On Egg Mortalitymentioning

confidence: 99%

Disinfestation of stored wheat grain infested with Rhyzopertha dominica by ozone treatment: process optimization and impact on grain properties

et al. 2019

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“…This is in accordance with the study of White et al (2010) that explored the relationship between fungal growth and wheat seeds deterioration in storage facilities. 22 Therefore, during on the long-term storage, appropriate technologies should be applied to hinder the fast growth of fungi at the middle layer and lower layer of grain bulk.…”

Section: Effects Of Moisture Contents On Mildewingmentioning

confidence: 99%

Effects of deterioration and mildewing on the quality of wheat seeds with different moisture contents during storage

et al. 2020

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Deterioration and mildewing caused by moisture of wheat seeds are serious problems that should be addressed for safe storage. In this work, simulated storage facilities were employed to preserve wheat seeds with different moisture contents (16%, 18%, 20% and 22%). The temperature changes in grain bulk, the mildewing situation, and the biochemical properties of wheat seeds were analyzed. Microstructures of endosperm and embryos were observed under electron microscopy. The results showed that with the increase of moisture content in wheat seeds, the deterioration and mildewing became serious. In the storage of wheat seeds with high moisture content, serious damage to the internal structure of endosperm and embryo was observed. Besides, the temperature increase and the fungal growth in grain bulk are attributed to the moisture of wheat seeds. Particularly, with the nutrient loss and cell damage, germination efficiency decreased with the extension of the storage period and the biochemical properties of wheat seeds are negatively impacted. Based on the results of this study, to prevent the deterioration and mildewing of wheat seeds and protect the biochemical properties in long-term storage, moisture should be controlled during the storage.

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“…Since, ozone as a disinfectant has been successful on the microbial populations, including bacteria, viruses, protozoa and fungi, it has been used to disinfect drinking water and in food industry sanitation (Meunier;Canonica;von Gunten, 2006). The fumigation of grain silos and crop stores, with the aim of controlling pests and postharvest diseases, had been other uses of ozone (White et al, 2010). Megahed, Aldridge and Lowe (2018) proved the antimicrobial capacity of aqueous and gaseous ozone through manure residues disinfection in livestock farms.…”

Section: Introductionmentioning

confidence: 99%

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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Controlling deterioration of high-moisture maize with ozone treatment

Cited by 37 publications

References 14 publications

Disinfestation of stored wheat grain infested with Rhyzopertha dominica by ozone treatment: process optimization and impact on grain properties

Disinfestation of stored wheat grain infested with Rhyzopertha dominica by ozone treatment: process optimization and impact on grain properties

Effects of deterioration and mildewing on the quality of wheat seeds with different moisture contents during storage

Response of root-knot nematode Meloidogyne javanica to ozone

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