Gravimetric sampling procedure for aqueous ozone concentrations

Yates, Richard S.

doi:10.1016/s0043-1354(99)00263-8

Cited by 10 publications

(4 citation statements)

References 6 publications

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“…These distances translate into an approximate spray travel distance of 0.47 m through the air (calculated as one-fourth the circumference of a circle with a radius of 0.3 m). Using the gravimetric Indigo colorimetric method (Yates and Stenstrom, 2000), residual ozone concentrations were evaluated in triplicate at each emitter and at each treatment level.…”

Section: Methodsmentioning

confidence: 99%

Phytotoxicity of Aqueous Ozone on Five Container-grown Nursery Species

Graham¹,

Zhang²,

Zheng³

et al. 2009

horts

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The phytotoxic threshold of five woody perennial nursery crops to applications of aqueous ozone was investigated to determine if aqueous ozone could be used for remediation of recycled nursery irrigation water and for pathogen control. The perennial nursery crops [Salix integra Thunb. ‘Hakura Nishiki’; Weigela florida Thunb. ‘Alexandra’; Spiraea japonica L.f. ‘Goldmound’; Hydrangea paniculata Seib. ‘Grandiflora’; Physocarpus opulifolius L. Maxim. ‘Summer Wine’] were evaluated for aqueous ozone phytotoxicity after 6 weeks of overhead spray irrigation in which five aqueous ozone treatments (0, 10.4, 31.2, 62.5, 125.0 μmol·L−1) were applied on a daily basis. The concentrations applied represent levels useful for irrigation system maintenance (pathogen and biofilm control) with the highest levels selected to clearly demonstrate phytotoxicity. Aqueous ozone solutions were prepared and injected in-line during irrigation for 7.5 min every day for 6 weeks, after which growth parameters (leaf area, shoot dry weight, root dry weight, height, flower number) were measured and leaf injury was evaluated. High residual aqueous ozone (62.5 μmol·L−1 or greater at emitter discharge; 0.3 m from canopy) in the irrigation water was shown to negatively affect the growth parameters measured; however, low residual ozone concentrations (31.2 μmol·L−1 or less at emitter discharge; 0.3 m from canopy) did not present any measurable risk to plant growth. Furthermore, even at higher dose levels, leaves produced during the treatment period showed reduced damage levels. It is concluded that ozone residuals of 31.2 μmol·L−1 (at emitter discharge) can remain in overhead irrigation water without negatively affecting the crop species examined under the application protocols used. At the ozone concentrations demonstrated to be tolerable by the crop species examined, it is reasonable to surmise that control of pathogens at all points within the irrigation system will be achievable using aqueous ozone as part of an irrigation management strategy. The use of aqueous ozone in this fashion could also aid in dramatically reducing chemical residuals on crops by reducing the input requirements of traditional chemical controls.

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Section: Methodsmentioning

confidence: 99%

Phytotoxicity of Aqueous Ozone on Five Container-grown Nursery Species

Graham¹,

Zhang²,

Zheng³

et al. 2009

horts

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“…To determine whether PIS containing O 3 -MNBs can be used in the preservation of small yellow croaker, the preservation rate of O 3 in the PIS and the freshness indicators of the fish samples were determined. [24] using the following equation:…”

Section: Preservation Of Small Yellow Croakermentioning

confidence: 99%

A Novel Strategy for Accelerating Pumpable Ice Slurry Production with Ozone Micro–Nano Bubbles and Extending the Shelf Life of Larimichthys polyactis

Zhang

Cheng

Liang

et al. 2023

Foods

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In this study, a novel strategy for accelerating the production of pumpable ice slurry (PIS) by using ozone micro–nano bubbles (O3-MNBs) was proposed. The effect of PIS containing sodium alginate (SA) and O3-MNBs on the preservation of small yellow croaker (Larimichthys polyactis) was investigated. The results indicate that using SA solution containing O3-MNBs instead of only SA solution resulted in quicker production of PIS by promoting ice nucleation and eliminating supercooling. The distribution and positive effect of O3-MNBs as a nucleation agent on freezing characteristics were discussed. Microbial concentrations, pH, total volatile basic nitrogen, and thiobarbituric acid reactive substance content were also examined. Storage in novel PIS (containing O3-MNBs) had higher performance than storage in flake ice or conventional PIS due to the strong bacteriostatic ability of O3. Therefore, O3-MNBs injection can be used as a novel method for PIS production and the preservation of fresh marine products.

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“…This procedure is easy to implement in the field and is highly accurate when properly performed (Yates and Stenstrom, 2000).…”

Section: Ozone Measurement In Watermentioning

confidence: 99%

Ozone as a Safe and Environmentally Friendly Tool for the Seafood Industry

Gonçalves

2014

Journal of Aquatic Food Product Technology

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In recent years, increasing attention has been focused on food safety, and in particular on the intervention methods to reduce and/or eliminate human pathogens from fresh products. Many research and industrial trials are underway to validate the use of ozone in the food industry as an alternative treatment to improve food safety. Notably, when ozone is applied to food surfaces, it leaves no residues since it decomposes quickly. Chemical and physical properties of ozone, its generation, and the antimicrobial power of ozone were explained as well as many advantages of ozone uses in the seafood industry.

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Gravimetric sampling procedure for aqueous ozone concentrations

Cited by 10 publications

References 6 publications

Phytotoxicity of Aqueous Ozone on Five Container-grown Nursery Species

Phytotoxicity of Aqueous Ozone on Five Container-grown Nursery Species

A Novel Strategy for Accelerating Pumpable Ice Slurry Production with Ozone Micro–Nano Bubbles and Extending the Shelf Life of Larimichthys polyactis

Ozone as a Safe and Environmentally Friendly Tool for the Seafood Industry

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