Evaluating the Effects of Ozone Nanobubble Treatments on Postharvest Quality of Fresh Peaches
Sanitation is a crucial postharvest operation that aims to reduce the microbiological load of harvested produce. Currently, in the southeastern United States, peach packing houses use chemical oxidizers, such as sodium hypochlorite (NaOCl) in their hydrocooling systems to treat the fruit and suppres...
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American Society for Horticultural Science (ASHS)
2025-01-01
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| Series: | HortTechnology |
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| Online Access: | https://journals.ashs.org/horttech/view/journals/horttech/35/1/article-p90.xml |
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| author | Orestis Giannopoulos Ramsey Corn Dario Chavez Francisco Loayza Angelos Deltsidis |
| author_facet | Orestis Giannopoulos Ramsey Corn Dario Chavez Francisco Loayza Angelos Deltsidis |
| author_sort | Orestis Giannopoulos |
| collection | DOAJ |
| description | Sanitation is a crucial postharvest operation that aims to reduce the microbiological load of harvested produce. Currently, in the southeastern United States, peach packing houses use chemical oxidizers, such as sodium hypochlorite (NaOCl) in their hydrocooling systems to treat the fruit and suppress foodborne pathogens postharvest. This study aims to evaluate the effectiveness and efficiency of a novel sanitation technology called high-oxygen water (HOW) as an alternative to NaOCl. It is based on the generation of stable nanobubbles of oxygen (O2) in water in combination with gaseous ozone (O3) without the need for chemicals. The suspended solution has the potential to reduce microorganism loads during the exposure period and prevent the growth of microorganisms during storage. This technology could serve as an effective sanitation treatment for peaches during hydrocooling. Peaches were treated using HOW at various concentrations of dissolved oxygen (10, 20, and 30 mg·L−1) combined with saturated (approximately 8 mg·L−1) O3. These treatments were compared with a standard NaOCl treatment (50 mg·L−1 of free chlorine). Our team evaluated the effects of HOW by assessing postharvest fruit quality changes and decay incidence over time. The results indicated that while HOW treatments showed potential in maintaining postharvest quality, high concentrations of O3 were detrimental to fruit quality, causing increased decay incidence compared with the NaOCl treatment. |
| format | Article |
| id | doaj-art-753b5f8f1bc74eae8f3233ebc1ad19db |
| institution | Kabale University |
| issn | 1943-7714 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | American Society for Horticultural Science (ASHS) |
| record_format | Article |
| series | HortTechnology |
| spelling | doaj-art-753b5f8f1bc74eae8f3233ebc1ad19db2025-01-24T16:15:55ZengAmerican Society for Horticultural Science (ASHS)HortTechnology1943-77142025-01-01351https://doi.org/10.21273/HORTTECH05557-24Evaluating the Effects of Ozone Nanobubble Treatments on Postharvest Quality of Fresh PeachesOrestis Giannopoulos0Ramsey Corn1Dario Chavez2Francisco Loayza3Angelos Deltsidis4Department of Horticulture, University of Georgia, Vidalia Onion Research LaboratoryDepartment of Horticulture, University of Georgia, Vidalia Onion Research LaboratoryDepartment of Horticulture, University of Georgia, Stress Physiology BuildingEscuela de Ingenieria y Ciencias, Tecnologico de Monterrey, Epigmenio González 500, San Pablo, 76130 Queretaro, MexicoDepartment of Horticulture, University of Georgia, Vidalia Onion Research LaboratorySanitation is a crucial postharvest operation that aims to reduce the microbiological load of harvested produce. Currently, in the southeastern United States, peach packing houses use chemical oxidizers, such as sodium hypochlorite (NaOCl) in their hydrocooling systems to treat the fruit and suppress foodborne pathogens postharvest. This study aims to evaluate the effectiveness and efficiency of a novel sanitation technology called high-oxygen water (HOW) as an alternative to NaOCl. It is based on the generation of stable nanobubbles of oxygen (O2) in water in combination with gaseous ozone (O3) without the need for chemicals. The suspended solution has the potential to reduce microorganism loads during the exposure period and prevent the growth of microorganisms during storage. This technology could serve as an effective sanitation treatment for peaches during hydrocooling. Peaches were treated using HOW at various concentrations of dissolved oxygen (10, 20, and 30 mg·L−1) combined with saturated (approximately 8 mg·L−1) O3. These treatments were compared with a standard NaOCl treatment (50 mg·L−1 of free chlorine). Our team evaluated the effects of HOW by assessing postharvest fruit quality changes and decay incidence over time. The results indicated that while HOW treatments showed potential in maintaining postharvest quality, high concentrations of O3 were detrimental to fruit quality, causing increased decay incidence compared with the NaOCl treatment.https://journals.ashs.org/horttech/view/journals/horttech/35/1/article-p90.xmlalternative treatmentsdecay controldecay incidencehigh-oxygen water |
| spellingShingle | Orestis Giannopoulos Ramsey Corn Dario Chavez Francisco Loayza Angelos Deltsidis Evaluating the Effects of Ozone Nanobubble Treatments on Postharvest Quality of Fresh Peaches HortTechnology alternative treatments decay control decay incidence high-oxygen water |
| title | Evaluating the Effects of Ozone Nanobubble Treatments on Postharvest Quality of Fresh Peaches |
| title_full | Evaluating the Effects of Ozone Nanobubble Treatments on Postharvest Quality of Fresh Peaches |
| title_fullStr | Evaluating the Effects of Ozone Nanobubble Treatments on Postharvest Quality of Fresh Peaches |
| title_full_unstemmed | Evaluating the Effects of Ozone Nanobubble Treatments on Postharvest Quality of Fresh Peaches |
| title_short | Evaluating the Effects of Ozone Nanobubble Treatments on Postharvest Quality of Fresh Peaches |
| title_sort | evaluating the effects of ozone nanobubble treatments on postharvest quality of fresh peaches |
| topic | alternative treatments decay control decay incidence high-oxygen water |
| url | https://journals.ashs.org/horttech/view/journals/horttech/35/1/article-p90.xml |
| work_keys_str_mv | AT orestisgiannopoulos evaluatingtheeffectsofozonenanobubbletreatmentsonpostharvestqualityoffreshpeaches AT ramseycorn evaluatingtheeffectsofozonenanobubbletreatmentsonpostharvestqualityoffreshpeaches AT dariochavez evaluatingtheeffectsofozonenanobubbletreatmentsonpostharvestqualityoffreshpeaches AT franciscoloayza evaluatingtheeffectsofozonenanobubbletreatmentsonpostharvestqualityoffreshpeaches AT angelosdeltsidis evaluatingtheeffectsofozonenanobubbletreatmentsonpostharvestqualityoffreshpeaches |