Effect of Moisture Content on the Physical Properties of Fibered Flaxseed

Bo Wang, College of Engineering, China Agricultural University, Beijing 100083, China
Dong Li, College of Engineering, China Agricultural University, Beijing 100083, China
Li-jun Wang, College of Food Science and Nutritional Engineering, China Agricultural University
Zhi-gang Huang, College of Mechanical Engineering and Automation, Beijing Technology and Business University, Beijing 100037, China
Lu Zhang, Department of Chemical and Materials Engineering, The University of Auckland
Xiao Dong Chen, College of Engineering, China Agricultural University; Department of Chemical Engineering, Monash University
Zhi-huai Mao, College of Engineering, China Agricultural University

Abstract

The physical properties of fibered flaxseed were investigated within moisture content varying from 6.21 to 16.29%. The length, width, thickness and geometric mean diameter increased from 4.20 to 4.44mm, 1.99 to 2.13mm, 0.91 to 0.95mm, and 1.95 to 2.06mm, respectively in the moisture content range. One thousand seed weight increased linearly from 4.22 to 4.62g. The bulk density decreased from 726.783 to 611.872kg/m3, while the true density increased from 1165.265 to 1289.341kg/m3 in the moisture content range. The porosity values of flaxseed increased linearly from 37.67 to 52.54%. The highest static coefficient of friction was found on the plywood surface, while the lowest on the stainless steel surface. The static coefficient of friction increased from 0.467 to 0.972, 0.442 to 0.864, 0.492 to 0.927, and 0.490 to 0.845 for plywood, stainless steel, aluminum sheet and galvanized iron, respectively. The angle of repose increased linearly from 25.7° to 33.8° in the moisture content range. The results are necessary for design of equipment to handling, transportation, processing, and the storage of flaxseed.

Submitted: August 9, 2007 · Accepted: August 30, 2007 · Published: September 6, 2007

Recommended Citation

Wang, Bo; Li, Dong; Wang, Li-jun; Huang, Zhi-gang; Zhang, Lu; Chen, Xiao Dong; and Mao, Zhi-huai (2007) "Effect of Moisture Content on the Physical Properties of Fibered Flaxseed," International Journal of Food Engineering: Vol. 3 : Iss. 5, Article 1.
DOI: 10.2202/1556-3758.1281
Available at: http://www.bepress.com/ijfe/vol3/iss5/art1

 
 
 
 

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