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dc.contributor.authorGrajales, Lina Maria [UNESP]
dc.contributor.authorXavier, Natalia Monteiro [UNESP]
dc.contributor.authorHenrique, Joao Paulo [UNESP]
dc.contributor.authorThomeo, Joao Claudio [UNESP]
dc.identifier.citationPowder Technology. Lausanne: Elsevier B.V. Sa, v. 222, p. 167-175, 2012.
dc.description.abstractThe mixing and motion of particles were analyzed in a rotary drum as part of the development of a solid-state fermentation bioreactor for spore production from the fungus Metarhizium anisopliae. Rice was chosen as the particle because it is often used as a substrate for fungal incubation. The controlled variables were the particle load, drum spin velocity and the presence of inner tubes. The dyed-tracer technique was applied to the system, and image analysis was performed using the commercial software LensEye. A detailed calibration procedure is described. The software was able to identify particle weight concentrations of up to 20% with good accuracy. The load of particles was the only variable to influence the number of revolutions necessary to obtain a uniform mixture: 5,9 and 11 rotations were required to homogenize 5, 10 and 15 kg of particles, respectively. The presence of inner tubes strongly influenced the particle velocities in the central core of the bed and changed the velocity patterns in all regions. (C) 2012 Elsevier B.V. All rights reserved.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.publisherElsevier B.V. Sa
dc.relation.ispartofPowder Technology
dc.sourceWeb of Science
dc.subjectSolid state fermentation (SSF)en
dc.subjectParticle mixingen
dc.subjectRotary drumen
dc.subjectTracer techniqueen
dc.subjectImage analysisen
dc.subjectLensEye softwareen
dc.titleMixing and motion of rice particles in a rotating drumen
dcterms.rightsHolderElsevier B.V. Sa
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.description.affiliationUniv Estadual Paulista, Dept Engn & Tecnol Alimentos, BR-15054000 Sao Jose do Rio Preto, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Engn & Tecnol Alimentos, BR-15054000 Sao Jose do Rio Preto, Brazil
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dc.description.sponsorshipIdFAPESP: 06/55641-7
dc.description.sponsorshipIdFAPESP: 09/50652-9
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Biociências Letras e Ciências Exatas, São José do Rio Pretopt
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