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Uniaxial die compaction of food powders

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Main Authors: Yus Aniza, Yusof, Dr., Andrew, C. Smith, Dr., Brian, J. Briscoe, Prof.
Other Authors: niza@eng.upm.edu.my
Format: Article
Language:English
Published: The Institution of Engineers, Malaysia 2011
Subjects:
Compactability
Compressibility
Food powders
Stress relaxation
Tensile strength
Uniaxial die compaction
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/13677
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spelling my.unimap-136772011-09-07T19:01:46Z Uniaxial die compaction of food powders Yus Aniza, Yusof, Dr. Andrew, C. Smith, Dr. Brian, J. Briscoe, Prof. niza@eng.upm.edu.my Compactability Compressibility Food powders Stress relaxation Tensile strength Uniaxial die compaction Link to publisher's homepage at http://www.myiem.org.my/ This paper presents a study of uniaxial die compaction of food powders for typical food powders such as maize powder and maize grits as well as a universal binder known as microcrystalline cellulose or Avicel. This method of compaction is widely applied in the industry as it can investigate the compressibility and compactability characteristics of powders prior to handling, storage, packaging, and transportation. In the current context, a cylindrical uniaxial die of 20 mm was used to compress the powders into compact. Pressures ranging of 30 and 160 MPa were applied to the uniaxial die using a universal testing machine. It was found that Avicel powder showed the highest compactability characteristic, ability to form bonding easily. Whereas, compactability of both the coarse maize and fine maize were quite similar, which may be due to the similar chemical composition. The data were then validated using an established compression equation. The asymptotic residual modulus value reduced as the ability of the food powders to form plastic junctions - assuming that they existed - increased. For the tensile strength test, Avicel compact showed the greatest tensile strength, many times that of fine maize and coarse maize compacts. However, between the fine maize and coarse maize, fine maize had higher tensile strength which may be due to its smaller particle size, as well as the fact that the contact area may be increased, and consequently may form a more coherent compact. The results indicate that this simple approach can be used to understand the compressibility and compactability characteristics of food powders which are essential for engineering and technology application. 2011-09-07T19:01:45Z 2011-09-07T19:01:45Z 2009-12 Article The Journal of the Institution of Engineers, Malaysia, vol. 70(4), 2009, pages 41-48 0126-513X http://www.myiem.org.my/content/iem_journal_2009-180.aspx http://hdl.handle.net/123456789/13677 en The Institution of Engineers, Malaysia
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Compactability
Compressibility
Food powders
Stress relaxation
Tensile strength
Uniaxial die compaction
spellingShingle Compactability
Compressibility
Food powders
Stress relaxation
Tensile strength
Uniaxial die compaction
Yus Aniza, Yusof, Dr.
Andrew, C. Smith, Dr.
Brian, J. Briscoe, Prof.
Uniaxial die compaction of food powders
description Link to publisher's homepage at http://www.myiem.org.my/
author2 niza@eng.upm.edu.my
author_facet niza@eng.upm.edu.my
Yus Aniza, Yusof, Dr.
Andrew, C. Smith, Dr.
Brian, J. Briscoe, Prof.
format Article
author Yus Aniza, Yusof, Dr.
Andrew, C. Smith, Dr.
Brian, J. Briscoe, Prof.
author_sort Yus Aniza, Yusof, Dr.
title Uniaxial die compaction of food powders
title_short Uniaxial die compaction of food powders
title_full Uniaxial die compaction of food powders
title_fullStr Uniaxial die compaction of food powders
title_full_unstemmed Uniaxial die compaction of food powders
title_sort uniaxial die compaction of food powders
publisher The Institution of Engineers, Malaysia
publishDate 2011
url http://dspace.unimap.edu.my/xmlui/handle/123456789/13677
_version_ 1643790969978486784
score 13.214268

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