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Detection of potato storage disease via gas analysis : a pilot study using field asymmetric ion mobility spectrometry
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Rutolo, Massimo, Covington, James A., Clarkson, John P. and Iliescu, Daciana (2014) Detection of potato storage disease via gas analysis : a pilot study using field asymmetric ion mobility spectrometry. Sensors, Volume 14 (Number 9). pp. 15939-15952. doi:10.3390/s140915939 ISSN 1424-8220.
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Official URL: http://dx.doi.org/10.3390/s140915939
Abstract
Abstract: Soft rot is a commonly occurring potato tuber disease that each year causes substantial losses to the food industry. Here, we explore the possibility of early detection of the disease via gas/vapor analysis, in a laboratory environment, using a recent technology known as FAIMS (Field Asymmetric Ion Mobility Spectrometry). In this work, tubers were inoculated with a bacterium causing the infection, Pectobacterium carotovorum, and stored within set environmental conditions in order to manage disease progression. They were compared with controls stored in the same conditions. Three different inoculation time courses were employed in order to obtain diseased potatoes showing clear signs of advanced infection (for standard detection) and diseased potatoes with no apparent evidence of infection (for early detection). A total of 156 samples were processed by PCA (Principal Component Analysis) and k-means clustering. Results show a clear discrimination between controls and diseased potatoes for all experiments with no difference among observations from standard and early detection. Further analysis was carried out by means of a statistical model based on LDA (Linear Discriminant Analysis) that showed a high classification accuracy of 92.1% on the test set, obtained via a LOOCV (leave-one out cross-validation).
| Item Type: | Journal Article | ||||||||
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| Subjects: | S Agriculture > SB Plant culture | ||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) |
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| Library of Congress Subject Headings (LCSH): | Potatoes -- Diseases and pests, Potatoes -- Storage | ||||||||
| Journal or Publication Title: | Sensors | ||||||||
| Publisher: | MDPI AG | ||||||||
| ISSN: | 1424-8220 | ||||||||
| Official Date: | 28 August 2014 | ||||||||
| Dates: |
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| Volume: | Volume 14 | ||||||||
| Number: | Number 9 | ||||||||
| Number of Pages: | 14 | ||||||||
| Page Range: | pp. 15939-15952 | ||||||||
| DOI: | 10.3390/s140915939 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Open Access (Creative Commons) | ||||||||
| Date of first compliant deposit: | 28 December 2015 | ||||||||
| Date of first compliant Open Access: | 28 December 2015 | ||||||||
| Funder: | Great Britain. Agriculture and Horticulture Development Board (AHDB) | ||||||||
| Grant number: | R461 (AHDB) |
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