The application of microwave drying process for rambutan (Nephelium lappaceum L.) seed
This study aims to investigate the drying characteristics of rambutan seed in a microwave oven. The experiments were conducted at three power levels of 250, 600 and 1000 W and three drying times of 8, 9 and 10 h with three replications. Changes in these operational variables were conducted to highli...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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International Microwave Power Institute
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/74108/ http://psasir.upm.edu.my/id/eprint/74108/1/The%20application%20of%20microwave%20drying%20process%20for%20rambutan%20%28Nephelium%20lappaceum%20L.%29%20seed.pdf |
| _version_ | 1848857434550960128 |
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| author | Ahmad, Sobah Anuar, Mohd Shamsul Taip, Farah Saleena Shamsudin, Rosnah Ab Mutalib, Siti Roha |
| author_facet | Ahmad, Sobah Anuar, Mohd Shamsul Taip, Farah Saleena Shamsudin, Rosnah Ab Mutalib, Siti Roha |
| author_sort | Ahmad, Sobah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | This study aims to investigate the drying characteristics of rambutan seed in a microwave oven. The experiments were conducted at three power levels of 250, 600 and 1000 W and three drying times of 8, 9 and 10 h with three replications. Changes in these operational variables were conducted to highlight their effects on the drying characteristics observed through their drying profiles and final moisture contents. To estimate the drying behaviour, three thin layer equations were used to fit experimental data. Results showed that the drying time and final moisture content were decreased with an increase in the microwave power. Page model was selected as the best mathematical model to describe the drying process. Moisture diffusivity obtained varied from 4.10 × 10⁻⁹ to 9.64 × 10⁻⁹ m² s⁻¹ and the activation energy varied between 22.10 to 110.59 g.W⁻¹ at different powers and drying times. |
| first_indexed | 2025-11-15T11:57:29Z |
| format | Article |
| id | upm-74108 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T11:57:29Z |
| publishDate | 2018 |
| publisher | International Microwave Power Institute |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-741082020-04-26T17:31:52Z http://psasir.upm.edu.my/id/eprint/74108/ The application of microwave drying process for rambutan (Nephelium lappaceum L.) seed Ahmad, Sobah Anuar, Mohd Shamsul Taip, Farah Saleena Shamsudin, Rosnah Ab Mutalib, Siti Roha This study aims to investigate the drying characteristics of rambutan seed in a microwave oven. The experiments were conducted at three power levels of 250, 600 and 1000 W and three drying times of 8, 9 and 10 h with three replications. Changes in these operational variables were conducted to highlight their effects on the drying characteristics observed through their drying profiles and final moisture contents. To estimate the drying behaviour, three thin layer equations were used to fit experimental data. Results showed that the drying time and final moisture content were decreased with an increase in the microwave power. Page model was selected as the best mathematical model to describe the drying process. Moisture diffusivity obtained varied from 4.10 × 10⁻⁹ to 9.64 × 10⁻⁹ m² s⁻¹ and the activation energy varied between 22.10 to 110.59 g.W⁻¹ at different powers and drying times. International Microwave Power Institute 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/74108/1/The%20application%20of%20microwave%20drying%20process%20for%20rambutan%20%28Nephelium%20lappaceum%20L.%29%20seed.pdf Ahmad, Sobah and Anuar, Mohd Shamsul and Taip, Farah Saleena and Shamsudin, Rosnah and Ab Mutalib, Siti Roha (2018) The application of microwave drying process for rambutan (Nephelium lappaceum L.) seed. Journal of Microwave Power and Electromagnetic Energy, 52 (2). 142 - 157. ISSN 0832-7823; ESSN: 2472-4041 10.1080/08327823.2018.1423536 |
| spellingShingle | Ahmad, Sobah Anuar, Mohd Shamsul Taip, Farah Saleena Shamsudin, Rosnah Ab Mutalib, Siti Roha The application of microwave drying process for rambutan (Nephelium lappaceum L.) seed |
| title | The application of microwave drying process for rambutan (Nephelium lappaceum L.) seed |
| title_full | The application of microwave drying process for rambutan (Nephelium lappaceum L.) seed |
| title_fullStr | The application of microwave drying process for rambutan (Nephelium lappaceum L.) seed |
| title_full_unstemmed | The application of microwave drying process for rambutan (Nephelium lappaceum L.) seed |
| title_short | The application of microwave drying process for rambutan (Nephelium lappaceum L.) seed |
| title_sort | application of microwave drying process for rambutan (nephelium lappaceum l.) seed |
| url | http://psasir.upm.edu.my/id/eprint/74108/ http://psasir.upm.edu.my/id/eprint/74108/ http://psasir.upm.edu.my/id/eprint/74108/1/The%20application%20of%20microwave%20drying%20process%20for%20rambutan%20%28Nephelium%20lappaceum%20L.%29%20seed.pdf |