Effects of pneumatic conveying drying conditions on damaged starch content and particle size of Cassava starch
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Publication Details
Author list: Aichayawanich S., Nopharatana M., Nopharatana A., Songkasiri W.
Publisher: Trans Tech Publications
Publication year: 2012
Volume number: 554-556
Start page: 1433
End page: 1438
Number of pages: 6
ISBN: 9783037854563
ISSN: 1022-6680
eISSN: 1662-8985
Languages: English-Great Britain (EN-GB)
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Abstract
This research aimed to investigate the effects of pneumatic conveying drying conditions on damaged starch content and particle size of cassava starch using response surface methodology. Three parameters of interest, i.e. drying air temperature (120, 160, and 200°C), drying air velocity (20, 30, and 40 m/s), and feed moisture content (40, 50, and 60% d.b.), were varied. Experimental results showed that damaged starch content and average particle size of cassava starch before drying were approximately 0.45% and 21.47μm, respectively. However, after drying, the values were altered to approximately 0.69 to 6.84% and 15.40 to 31.67 μm, respectively. The drying air temperature, drying air velocity, and feed moisture content significantly affected the changes. The results indicated that cassava starch granules were damaged and then agglomerated into large particle during pneumatic conveying drying depending on operation conditions.© (2012) Trans Tech Publications, Switzerland.
Keywords
Cassava starch, Damaged starch content, Particle size, Pneumatic conveying drying
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