Physical properties of sunflower seeds during drying
The aim of this work was to determine the effect that the moisture content has on the physical properties of sunflower seeds. The cultivar Olisun 3, with an initial moisture content of 34.1 (% wb), was used and then subjected to drying in an oven with forced air ventilation under three temperature c...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Londrina
2017-03-01
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| Series: | Semina: Ciências Agrárias |
| Subjects: | |
| Online Access: | http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/23765 |
| _version_ | 1818694045098049536 |
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| author | Thaís Adriana de Souza Smaniotto Osvaldo Resende Kelly Aparecida de Sousa Rafael Cândido Campos Denner Nogueira Guimarães Gabrielly Bernardes Rodrigues |
| author_facet | Thaís Adriana de Souza Smaniotto Osvaldo Resende Kelly Aparecida de Sousa Rafael Cândido Campos Denner Nogueira Guimarães Gabrielly Bernardes Rodrigues |
| author_sort | Thaís Adriana de Souza Smaniotto |
| collection | DOAJ |
| description | The aim of this work was to determine the effect that the moisture content has on the physical properties of sunflower seeds. The cultivar Olisun 3, with an initial moisture content of 34.1 (% wb), was used and then subjected to drying in an oven with forced air ventilation under three temperature conditions: 40, 60 and 80 °C. The reduction in the moisture content during drying was monitored by the gravimetric method until it reached a final moisture content of 8.0 ± 1.0 (% wb). The physical properties were analysed: the bulk density, true density, intergranular porosity and volumetric shrinkage of the mass and unit and terminal velocity. The reduction in the moisture content influenced the physical properties of sunflower seeds and caused a decrease in the intergranular porosity, bulk density and true density at all examined temperatures. The mass and volumetric contractions of the unit and reduction in shrinkage rates all increased with the drying of sunflower seeds at all studied temperatures. The terminal velocity increased as the moisture content of the grains increased, which was more evident at the drying temperature of 80 °C. |
| first_indexed | 2024-12-17T13:23:20Z |
| format | Article |
| id | doaj.art-5af388a55b3a4627b610bba93776b6e4 |
| institution | Directory Open Access Journal |
| issn | 1676-546X 1679-0359 |
| language | English |
| last_indexed | 2024-12-17T13:23:20Z |
| publishDate | 2017-03-01 |
| publisher | Universidade Estadual de Londrina |
| record_format | Article |
| series | Semina: Ciências Agrárias |
| spelling | doaj.art-5af388a55b3a4627b610bba93776b6e42022-12-21T21:46:48ZengUniversidade Estadual de LondrinaSemina: Ciências Agrárias1676-546X1679-03592017-03-0138115716410.5433/1679-0359.2017v38n1p15714941Physical properties of sunflower seeds during dryingThaís Adriana de Souza Smaniotto0Osvaldo Resende1Kelly Aparecida de Sousa2Rafael Cândido Campos3Denner Nogueira Guimarães4Gabrielly Bernardes Rodrigues5Instituto Federal de Ciência Educação e Tecnologia GoianoInstituto Federal de Ciência Educação e Tecnologia GoianoInstituto Federal de Ciência Educação e Tecnologia GoianoInstituto Federal de Ciência Educação e Tecnologia GoianoInstituto Federal de Ciência Educação e Tecnologia GoianoInstituto Federal de Ciência Educação e Tecnologia GoianoThe aim of this work was to determine the effect that the moisture content has on the physical properties of sunflower seeds. The cultivar Olisun 3, with an initial moisture content of 34.1 (% wb), was used and then subjected to drying in an oven with forced air ventilation under three temperature conditions: 40, 60 and 80 °C. The reduction in the moisture content during drying was monitored by the gravimetric method until it reached a final moisture content of 8.0 ± 1.0 (% wb). The physical properties were analysed: the bulk density, true density, intergranular porosity and volumetric shrinkage of the mass and unit and terminal velocity. The reduction in the moisture content influenced the physical properties of sunflower seeds and caused a decrease in the intergranular porosity, bulk density and true density at all examined temperatures. The mass and volumetric contractions of the unit and reduction in shrinkage rates all increased with the drying of sunflower seeds at all studied temperatures. The terminal velocity increased as the moisture content of the grains increased, which was more evident at the drying temperature of 80 °C.http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/23765Teor de águaContração volumétricaHelianthus annuusPorosidade intergranularContração volumétrica. |
| spellingShingle | Thaís Adriana de Souza Smaniotto Osvaldo Resende Kelly Aparecida de Sousa Rafael Cândido Campos Denner Nogueira Guimarães Gabrielly Bernardes Rodrigues Physical properties of sunflower seeds during drying Semina: Ciências Agrárias Teor de água Contração volumétrica Helianthus annuus Porosidade intergranular Contração volumétrica. |
| title | Physical properties of sunflower seeds during drying |
| title_full | Physical properties of sunflower seeds during drying |
| title_fullStr | Physical properties of sunflower seeds during drying |
| title_full_unstemmed | Physical properties of sunflower seeds during drying |
| title_short | Physical properties of sunflower seeds during drying |
| title_sort | physical properties of sunflower seeds during drying |
| topic | Teor de água Contração volumétrica Helianthus annuus Porosidade intergranular Contração volumétrica. |
| url | http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/23765 |
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