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Determination of Suitable Thin-Layer Drying Models for Brewer's Yeast (Saccharomyces cerevisiae)
National University of Engineering (UNI), Managua, Nicaragua. (Drying Technology)
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Transport Phenomena. (Drying & Process Technology)
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Transport Phenomena. UNI, Fac Ingn Quim, Nicaragua. (Drying & Process Technology)
2016 (English)In: Nexo, ISSN 1818-6742, E-ISSN 1995-9516, Vol. 2, 58-66 p.Article in journal (Refereed) Published
Abstract [en]

Mathematical models of thin-layer drying for brewer’s yeast (Saccharomyces cerevisiae) were studied and verified with experimental data. Twelve (12) different mathematical drying models were compared according to three (3) statistical parameters, i.e., correlation coefficient, root mean square error and chi (χ²)-square. The thin-layer drying kinetics of brewer’s yeast was experimentally investigated in a laboratory tunnel dryer and the mathematical modelling, using thin-layer dryingmodels present in the literature, was performed. Experiments were performed at air temperature of 40, 50 and 60 ºC at an airflow rate of 1.2 m/s. Drying curves obtained from the experimental data were fitted to the thin-layer drying models. The results show that the Page model is the most appropriate model for predicting the drying behaviour of the thin-layer brewer’s yeast.

Place, publisher, year, edition, pages
Managua, Nicaragua: UNIV NACL INGENIERIA , 2016. Vol. 2, 58-66 p.
Keyword [en]
Brewer's yeast, Thin-layer drying, Drying modelling, Multiple regressions
National Category
Chemical Process Engineering
Research subject
Chemical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-208892DOI: 10.5377/nexo.v28i2.3421ISI: 000397388500001OAI: oai:DiVA.org:kth-208892DiVA: diva2:1108632
Funder
Sida - Swedish International Development Cooperation Agency
Note

QC 20170621

Available from: 2017-06-12 Created: 2017-06-12 Last updated: 2017-06-21Bibliographically approved

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Haerinejad, MasoudPicado, Apolinar

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