Effect of drying and ozonation process on naturally contaminated wheat seeds

Granella, Suian José; Christ, Divair; Werncke, Iván; Bechlin, Taise Raquel; Coelho, Sílvia Renata Machado

doi:10.1016/j.jcs.2018.03.003

Cited by 36 publications

(11 citation statements)

References 22 publications

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“…The results were also similar to those found in the literature in which ozone did not affect the quality of peanut [36], carrots [37] and black mulberry [38]. Also, our previous report using ozone into air drying confirmed the efficiency of ozonation on wheat seeds without damaging your physiologic quality [26]. However, the effects of ozone on physiological properties depend on the ozone dose applied and the integrity of the grain affected by fungal infection.…”

Section: Chart 3 Response Surface On Reduction Of Count Fungus To Ozsupporting

confidence: 90%

“…The ability to control of fungal species, as those found in this study, confirms the efficiency that ozone has against a number of micro-organisms without damaging to quality of agricultural products, it has been reported for others researcher [16][17][18][19][20]. Ozone can also be applied in the various stages of agricultural production for your ease of handling and without generating waste, but it is most used in the post-harvest phase, mostly in storage in pest control and reducing chemical contaminants [21][22][23][24][25], other studies report the use of ozone to improve the drying process of grains and seeds [26,27].…”

Section: Chart 3 Response Surface On Reduction Of Count Fungus To Ozmentioning

confidence: 99%

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Ozone penetration in a column containing sunn hemp (Crotalaria spectabilis Roth) seeds and the effect on the quality

Granella¹,

Bechlin²,

Werncke³

et al. 2018

Poljoprivredna tehnika

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Ozone owns high oxidative potential against a broad microbial spectrum and can be applied directly in grain and seed for decontamination fungal and mycotoxin reduction. Thus, the objective of this work was to evaluate the effect of ozonation in the control of fungi and on sunn hemp seeds quality. For this, a cylindrical column of 15 cm diameter PVC was used for ozonation at different heights of the seed layer 2.95 to 17.05 cm and in different times of exposure ozone (17.7, 30, 60, 90 and 102.3 min) according to central composite rotatable design (CCRD). It was evaluated the effect of ozone on decontamination by fungi, moisture content and electric conductivity of sunn hemp seeds. Results of CCRD show different reductions of fungi and a second-order linear model was proposed (average absolute deviation 7.79% and R²=0.67). Fungi reduction (92.37%) was significantly higher in lower layers of the seed column and in longer ozone exposure times, values corresponding to 10 cm and 102.7 min, respectively. Results also showed that ozonation did not influence significantly electrical conductivity and moisture content of seeds (p-value<0.05). Thus, application of ozone can ensure maintenance of sunn hemp seeds in post-harvest without damaging your quality.

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Section: Chart 3 Response Surface On Reduction Of Count Fungus To Ozsupporting

confidence: 90%

Section: Chart 3 Response Surface On Reduction Of Count Fungus To Ozmentioning

confidence: 99%

Ozone penetration in a column containing sunn hemp (Crotalaria spectabilis Roth) seeds and the effect on the quality

Granella¹,

Bechlin²,

Werncke³

et al. 2018

Poljoprivredna tehnika

Self Cite

View full text Add to dashboard Cite

show abstract

“…The ozonation process reduced both the total fungal count and the rate of incidence of Aspergillus spp in maize grains exposed to ozone gas at a concentration of 2.14 mg L -1 for a 50 h period [56]. The maximum reduction of fungal count was 92.86%, with reduction from 1.87 cfu/g to 0.13 cfu/g, when the wheat seeds was treated with ozone for 45 min and dried with air temperature at 50ºC with improving the physiological quality of wheat seeds [57].…”

Section: Effect Of Ozone Gas Treatment For Contaminated Corn and Wheat Grains On Aflatoxins Concentration And Mold Countmentioning

confidence: 99%

In vivo Toxicity Assessment after the Detoxification of Aflatoxin Compounds – Contaminated Wheat and Corn by Ozone Gas

El-Sisy

Salem

Nail

et al. 2020

ARRB

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Aflatoxins (AFs) are dangerous mycotoxins, which include a great number of lipophilic molecules produced by aerobic microscopic fungi belonging to the genus Aspergillus causes health hazard including death to human and livestock. The objective of this study was to evaluate the effectiveness of ozone gas treatment on the fungal growth and detoxification of AFs - contaminated wheat and corn grains. Ozone concentration treatments 40 mg / Kg wheat for 1 hour and 80 mg / Kg corn for 2 hours of exposure time respectively were applied to contaminated samples of wheat and corn grains. It was observed that completely inhibition of Aspergillus growth and consequently the total aflatoxin content was decreased. In vivo, the biosafety assessment for 72 male albino rats fed on diet containing 70% wt. of ozone treated AFs – contaminated grains were evaluated comparing to control groups. Results indicated that rats fed on AFs contaminated grains have significantly increased the serum enzymes activity of alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), gamma glutamyl transferase (GGT), malondialdehyde (MDA) content as well as the serum levels of creatinine, urea, glucose, total cholesterol (TC) and triglycerides (TG). Also, it was observed that a significant decrease in the level of serum total protein (TP), albumin (Alb), reduced glutathione (GSH) and testosterone hormone comparing to control groups. However, the oral administration of ozonized groups ameliorated the biochemical parameters compared to rats fed on contaminated grains. Moreover, histopathological studies of liver, kidney and testis tissues of rats fed on contaminated grains that revealed different lesions and changes in tissues, inversely to that improving effects in tissues of ozonized contaminated grains – fed rats. It was concluded that ozonization treatment were most effective in reduction of mold count and degradation of aflatoxins content for grains during storage.

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“…The work [1] investigates the effect of ozone in comparison with the drying rates under two identical laboratory conditions -in one ventilating with clean air and in the other with air having ozone added. Experiments [2] were carried out in a 0.45 m high column with the ventilation length for up to an hour. The authors of publication [3] also carried out experiments in the laboratory with a few tens of kilograms of grain and a layer of grain up to 1.2 m thick.…”

Section: Introductionmentioning

confidence: 99%

Investigations in intensification of grain drying by active ventilation applying ozone

Rucins

Viesturs

Kristins

et al. 2020

19th International Scientific Conference Engineering for Rural Development Proceedings

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The article presents an analysis of the previous research on the use of ozone for intensified active ventilation of grain and develops a methodology for experiments to evaluate the usefulness of ozone utilisation in ventilation in farm conditions. The essence of the experiments: two identical tanks are loaded with the same amount of grain of the same humidity and are ventilated with the same intensity of air flow by adding to the ventilation air of one tank ozone, produced by the generator. The sensor systems installed in the tanks record the drying process parameters. The sensor systems, developed and installed in the tanks, worked without fail, providing a possibility to follow the ventilation modes in the computer, both on the farm, and remotely. During the experiments a small reduction in the moisture content of the grain in the ozone tank was consistently observed in several aspects, as compared to the tank without the ozone admixture to the ventilation air, yet the advantages of the method have not been convincingly proved. Therefore, experiments should be continued in 2020 during grain harvesting by ventilation in both tanks for grain, 3.0-3.5 m high. It has been proved during the experiments that, using active ventilation, we can prepare extra quality food grain for sale, reducing the humidity by 7.0-8.0 %.

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Effect of drying and ozonation process on naturally contaminated wheat seeds

Cited by 36 publications

References 22 publications

Ozone penetration in a column containing sunn hemp (Crotalaria spectabilis Roth) seeds and the effect on the quality

Ozone penetration in a column containing sunn hemp (Crotalaria spectabilis Roth) seeds and the effect on the quality

In vivo Toxicity Assessment after the Detoxification of Aflatoxin Compounds – Contaminated Wheat and Corn by Ozone Gas

Investigations in intensification of grain drying by active ventilation applying ozone

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