Ultraviolet-C treatments for spearmint decontamination of Salmonella sp. and Escherichia coli

Conference proceedings article

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Publication Details

Author list: Poubol J., Kukeeratikul K., Jitareerat P.

Publisher: International Society for Horticultural Science (ISHS)

Publication year: 2010

Volume number: 875

Start page: 263

End page: 268

Number of pages: 6

ISBN: 9789066055636

ISSN: 0567-7572

eISSN: 2406-6168

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-78650906299&doi=10.17660%2fActaHortic.2010.875.33&partnerID=40&md5=fa2e8db5bc886e1dd74ba0b705a7090a

Languages: English-Great Britain (EN-GB)

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Abstract

This work was to evaluate the effect of ultraviolet-C (UV-C) radiation on spearmint leaves decontaminated with Salmonella sp. and Escherichia coli. Growth of Salmonella sp. and E. coli were evaluated in vitro after exposition to different UV-C radiation doses (0, 0.6, 1.2, 1.8, and 3.6 kJ/m2). In the in vivo assays, spearmint leaves were inoculated with the cocktail cell suspension of Salmonella sp. and E. coli then submitted to UV-C radiation at 3.6 kJ/m2. The treated leaves were stored at 13ฐC for 4 days and evaluated for microbial growths. The results showed that all UV-C doses was able to inhibit Salmonella spp. and E. coli growth in vitro, particularly the dose of 3.6 kJ/m2 showed the best inhibition. However, the UV-C radiation 3.6 kJ/m2 did not inhibit the growth of both pathogens on the spearmint leaves.

Keywords

Microbial growth, Salmonella sp., Spearmint, Ultraviolet-C