Pulsed UV‐light treatment of corn meal for inactivation of Aspergillus niger spores
2003; Wiley; Volume: 38; Issue: 8 Linguagem: Inglês
10.1046/j.0950-5423.2003.00752.x
ISSN1365-2621
AutoresSoojin Jun, Joseph Irudayaraj, Ali Demırcı, David M. Geiser,
Tópico(s)Radiation Effects and Dosimetry
ResumoInternational Journal of Food Science & TechnologyVolume 38, Issue 8 p. 883-888 Pulsed UV-light treatment of corn meal for inactivation of Aspergillus niger spores Soojin Jun, Soojin Jun Department of Agricultural and Biological Engineering, Penn State University, University Park, PA, USASearch for more papers by this authorJoseph Irudayaraj, Corresponding Author Joseph Irudayaraj Department of Agricultural and Biological Engineering, Penn State University, University Park, PA, USA * Fax: +1 814 863 1031; e-mail: [email protected]Search for more papers by this authorAli Demirci, Ali Demirci Department of Agricultural and Biological Engineering, Penn State University, University Park, PA, USA Life Sciences Consortium, Penn State University, University Park, 16802, PA, USASearch for more papers by this authorDavid Geiser, David Geiser Department of Plant Pathology, Penn State University, University Park, PA, USASearch for more papers by this author Soojin Jun, Soojin Jun Department of Agricultural and Biological Engineering, Penn State University, University Park, PA, USASearch for more papers by this authorJoseph Irudayaraj, Corresponding Author Joseph Irudayaraj Department of Agricultural and Biological Engineering, Penn State University, University Park, PA, USA * Fax: +1 814 863 1031; e-mail: [email protected]Search for more papers by this authorAli Demirci, Ali Demirci Department of Agricultural and Biological Engineering, Penn State University, University Park, PA, USA Life Sciences Consortium, Penn State University, University Park, 16802, PA, USASearch for more papers by this authorDavid Geiser, David Geiser Department of Plant Pathology, Penn State University, University Park, PA, USASearch for more papers by this author First published: 18 November 2003 https://doi.org/10.1046/j.0950-5423.2003.00752.xCitations: 112Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Summary Fungal contamination of grains, intended for human and animal consumption, during the pre/post-harvest periods has been a recurring health hazard. A pulsed UV-light system was used to inactivate fungal spores of Aspergillus niger in corn meal. Response surface methodology was utilized for experimental design. The three process parameters evaluated were treatment time (20–100 s), voltage input (2000–3800 V), and distance from the UV strobe (3–13 cm). Optimization of the process parameters was validated by a quadratic regression equation designed to fit the experimental log10 reduction of fungal spores. Model prediction for a 100-s treatment time, 3 cm of distance from the UV strobe, and with 3800 V input gave a 4.93log10 reduction of A. niger. Modification of the pulsed UV-light system was recommended to maximize the UV fungal disinfection while minimizing the heat generation. 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