Application of dielectric barrier discharge for improving food shelf life and reducing spoilage

Abstract Dielectric Barrier Discharge (DBD) based ozone therapy is an attractive non-thermal, additive-free and environment-friendly alternative to traditional food processing technologies. Its practical application is dependent on economical ozone generation and optimum ozone dosage. This study inv...

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Autores principales:	Subrata Roy, Bhaswati Choudhury, Judith Johnson, Alexander Schindler-Tyka
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/552f7932ca4646788f379e18cdff8289
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spelling	oai:doaj.org-article:552f7932ca4646788f379e18cdff82892021-12-02T18:51:15ZApplication of dielectric barrier discharge for improving food shelf life and reducing spoilage10.1038/s41598-021-96887-32045-2322https://doaj.org/article/552f7932ca4646788f379e18cdff82892021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96887-3https://doaj.org/toc/2045-2322Abstract Dielectric Barrier Discharge (DBD) based ozone therapy is an attractive non-thermal, additive-free and environment-friendly alternative to traditional food processing technologies. Its practical application is dependent on economical ozone generation and optimum ozone dosage. This study investigates the one-time and periodic application of a compact (48 cu. cm), lightweight (55 g), low power, low temperature, DBD ozone generator for treatment of spoilage inocula prepared from combinations of spoiled green beans, grape tomatoes, lettuce and strawberries. A one-time exposure of 126–136 ppm of average ozone concentration produced by the DBD generator over 3 min and 15 min resulted in at least 1 and 4 log reduction, respectively, in microbial colonies present in the spoilage inocula. Daily exposure of 128.7 ppm average ozone concentration over 3 min under similar conditions showed that inhibition through periodic exposure can successfully inhibit the growth of both bacteria and mold species with at least 5 log reduction of microbial colonies. Visual inspection of whole fruits and vegetables with similar 3-min daily exposure showed the potential of ozone therapy to at least double the shelf-life of food products. For the daily exposures, energy required by the DBD ozone generator was calculated as 0.39 $$\pm $$ ± 0.06 kJ/day.Subrata RoyBhaswati ChoudhuryJudith JohnsonAlexander Schindler-TykaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Subrata Roy Bhaswati Choudhury Judith Johnson Alexander Schindler-Tyka Application of dielectric barrier discharge for improving food shelf life and reducing spoilage
description	Abstract Dielectric Barrier Discharge (DBD) based ozone therapy is an attractive non-thermal, additive-free and environment-friendly alternative to traditional food processing technologies. Its practical application is dependent on economical ozone generation and optimum ozone dosage. This study investigates the one-time and periodic application of a compact (48 cu. cm), lightweight (55 g), low power, low temperature, DBD ozone generator for treatment of spoilage inocula prepared from combinations of spoiled green beans, grape tomatoes, lettuce and strawberries. A one-time exposure of 126–136 ppm of average ozone concentration produced by the DBD generator over 3 min and 15 min resulted in at least 1 and 4 log reduction, respectively, in microbial colonies present in the spoilage inocula. Daily exposure of 128.7 ppm average ozone concentration over 3 min under similar conditions showed that inhibition through periodic exposure can successfully inhibit the growth of both bacteria and mold species with at least 5 log reduction of microbial colonies. Visual inspection of whole fruits and vegetables with similar 3-min daily exposure showed the potential of ozone therapy to at least double the shelf-life of food products. For the daily exposures, energy required by the DBD ozone generator was calculated as 0.39 $$\pm $$ ± 0.06 kJ/day.
format	article
author	Subrata Roy Bhaswati Choudhury Judith Johnson Alexander Schindler-Tyka
author_facet	Subrata Roy Bhaswati Choudhury Judith Johnson Alexander Schindler-Tyka
author_sort	Subrata Roy
title	Application of dielectric barrier discharge for improving food shelf life and reducing spoilage
title_short	Application of dielectric barrier discharge for improving food shelf life and reducing spoilage
title_full	Application of dielectric barrier discharge for improving food shelf life and reducing spoilage
title_fullStr	Application of dielectric barrier discharge for improving food shelf life and reducing spoilage
title_full_unstemmed	Application of dielectric barrier discharge for improving food shelf life and reducing spoilage
title_sort	application of dielectric barrier discharge for improving food shelf life and reducing spoilage
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/552f7932ca4646788f379e18cdff8289
work_keys_str_mv	AT subrataroy applicationofdielectricbarrierdischargeforimprovingfoodshelflifeandreducingspoilage AT bhaswatichoudhury applicationofdielectricbarrierdischargeforimprovingfoodshelflifeandreducingspoilage AT judithjohnson applicationofdielectricbarrierdischargeforimprovingfoodshelflifeandreducingspoilage AT alexanderschindlertyka applicationofdielectricbarrierdischargeforimprovingfoodshelflifeandreducingspoilage
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Application of dielectric barrier discharge for improving food shelf life and reducing spoilage

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