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The use of an electronic nose to detect early signs of soft-rot infection in potatoes

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Rutolo, Massimo, Clarkson, John P. and Covington, James A. (2018) The use of an electronic nose to detect early signs of soft-rot infection in potatoes. Biosystems Engineering, 167 . pp. 137-143.

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Official URL: https://doi.org/10.1016/j.biosystemseng.2018.01.00...

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Abstract

In this paper we report on the detection of soft-rot in potatoes caused by the bacterium Pectobacterium carotovorum through the use of an array of low cost gas sensors. This disease results in significant crop losses in store (circa 5%) with associated negative financial impacts. At present, there is no commercial technological solution for soft rot detection in such stores, with store managers having to regularly inspect large volumes of potatoes. As soft-rot is associated with a strong odour and there is forced air movement through potato stores, our aim was to investigate the potential of an array of low-cost gas sensors to detect the disease. In laboratory conditions, 80 potatoes with and without soft rot (evenly split) were analysed by an array of 11 different gas sensors. These were tested at both pre-symptomatic and symptomatic time points. Results indicated that 100% detection accuracy could be achieved at both time points with only 3 sensors. The identified sensors therefore offer promise for an automated in-store monitoring system.

Item Type: Journal Article
Subjects: S Agriculture > SB Plant culture
T Technology > TP Chemical technology
Divisions: Faculty of Science, Engineering and Medicine > Engineering > Engineering
Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- )
Library of Congress Subject Headings (LCSH): Potato-rot -- Early detection, Gas detectors
Journal or Publication Title: Biosystems Engineering
Publisher: Elsevier Ltd.
ISSN: 1537-5110
Official Date: March 2018
Dates:
DateEvent
March 2018Published
8 February 2018Available
15 January 2018Accepted
Volume: 167
Page Range: pp. 137-143
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
R461Agriculture and Horticulture Development Boardhttp://dx.doi.org/10.13039/100008123

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