Measurement and Removal of Garlic in Wheat
2002
Paulsen, M.R. | Eckhoff, S.R. | Obaldo, L. | Jones, E. | Eustace, D. | Ye, B. | Liu, J.
A study was conducted of problems associated with garlic bulblets (a weed seed) in soft wheat. Plugging of wheat milling break rolls is the primary problem encountered due to the presence of garlic in wheat. Physical properties of kernel density and dimensional measurements of garlic bulblets and wheat kernels were determined to evaluate wheat cleaning and garlic removal capabilities. Dimensions of wheat and garlic are similar and overlapping which makes size separation difficult; however, differences in true density of wheat and garlic bulblets provides the best opportunity for separation. Cleaning tests with the Carter-Day dockage tester indicated garlic bulblets were found in the portion going over the riddle or over the No. 2 sieve along with most of the wheat fraction. Alternative garlic detection methods using machine vision and NIR single- kernel spectroscopy were both found capable of differentiating garlic from wheat. Green garlic bulblets were found to have a strong affinity for water.
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