Show simple item record

dc.contributor.supervisor Jayas, Digvir S. (Biosystems Engineering) en
dc.contributor.author Parker, Vincent Russell
dc.date.accessioned 2010-10-04T16:14:05Z
dc.date.available 2010-10-04T16:14:05Z
dc.date.issued 2010-10-04T16:14:05Z
dc.identifier.uri http://hdl.handle.net/1993/4257
dc.description.abstract The use of near ambient air drying for the preservation of wheat stored in granaries is common in Western Canada. Guidelines have been developed to assist farmers in selecting appropriate drying methods. During this process the top layer of wheat can remain at moisture contents (m.c.) greater than the safe storage limit, 14.5% wet bulb (wb), for up to 12 weeks. This study tested the effects of this drying procedure on the development of ochratoxin A (OTA) using 1 m3 bulks of durum wheat at 18% m.c. (wb) contained within steel bins inside a Weather Simulation Lab. In a second study using 20 L volumes of wheat at a m.c. of 20% (wb) within an environmental growth chamber potential development of OTA was also evaluated. The wheat was exposed to two treatments, airflow and no airflow, for a period of 12 weeks under conditions of high relative humidity (greater than 80%) and typical Manitoba fall temperatures. The storage quality parameters of germination, fat acidity value, and presence of OTA were measured weekly. It was found that high moisture wheat stored under all treatment conditions showed a rapid decrease in germination and increase in fat acidity value over time, with no significant difference between the treatments. Under the tested conditions the development of ochratoxin A was not detected in significant quantities in the 1 m3 bulks of grain but was detected in the smaller 20 L bulks. en
dc.format.extent 10120776 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.subject Mycotoxins en
dc.subject grain storage en
dc.subject ochratoxin A en
dc.subject near-ambient air drying en
dc.title Potential of development of mycotoxins in stored durum wheat under near-ambient drying conditions in Western Canada en
dc.degree.discipline Biosystems Engineering en
dc.contributor.examiningcommittee White, Noel D.G. (Biosystems Engineering) House, James (Human Nutritional Sciences) en
dc.degree.level Master of Science (M.Sc.) en
dc.description.note February 2011 en


Files in this item

This item appears in the following Collection(s)

Show simple item record

View Statistics