Particle size analysis of two distinct classes of wheat flour by sieving

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Show simple item record Patwa, Abhay Malcolm, Blake Wilson, Jonathan Ambrose, R. P. Kingsly 2014-06-24T21:20:27Z 2014-06-24T21:20:27Z 2014-06-24
dc.description.abstract The most commonly used method for particle size analysis of wheat flour in the grain industry is a sieve shaker following either the ASABE or AACC standard. This study involved the determination of mean particle size of flour from two different classes of wheat, hard red winter (HRW) and soft white (SW), at sieving times of 8, 10, 12, 14, 16, and 18 min. Particle size measured by sieve analysis was compared with size as measured using laser diffraction. It was found that sieving time and wheat class had a significant effect on the measured final particle size. Increase in sieving time reduced the calculated average particle size of the flour. The mean particle size for HRW and SW flour was 110.98 µm and 570.29 µm, respectively, at 14 min of sieving. The mean particle size as measured by laser diffraction was 45.6 µm and 44.5 µm for HRW and SW flour, respectively. A flow agent helped the flour particles overcome the interparticle cohesive force during sieving and resulted in a smaller particle size with better size distribution. However, due to the higher cohesiveness of SW flour, flow agent at 0.5% of the sample mass had no effect on the measured mean particle size. Weibull and log-normal equations predicted the size distribution of flour with lower percent relative deviation compared to the Rosin-Rammler and Kumaraswamy equations. en_US
dc.language.iso en_US en_US
dc.relation.uri en_US
dc.rights © 2014 American Society of Agricultural and Biological Engineers en_US
dc.subject Particle size en_US
dc.subject Particle size distribution en_US
dc.subject Size distribution function en_US
dc.subject Wheat flour en_US
dc.title Particle size analysis of two distinct classes of wheat flour by sieving en_US
dc.type Article (publisher version) en_US 2014 en_US
dc.citation.doi doi:10.13031/trans.57.10388 en_US
dc.citation.epage 159 en_US
dc.citation.issue 1 en_US
dc.citation.jtitle Transactions of the ASABE en_US
dc.citation.spage 151 en_US
dc.citation.volume 57 en_US
dc.contributor.authoreid kingsly en_US

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