Determination of moisture content in the Dioscorea hispida tuber using microwave method
This study introduces an alternative method to determine percentage moisture content in a tuberous crop such as diosocorea hispida using microwave technique. Moisture content is an important parameter determining the quality of an agricultural product and their harvesting, transportation and storage...
| Main Authors: | , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
Faculty of Engineering, Universiti Putra Malaysia
2012
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| Online Access: | http://psasir.upm.edu.my/id/eprint/50667/ http://psasir.upm.edu.my/id/eprint/50667/1/_TechnicalPapers_CAFEi2012_101.pdf |
| _version_ | 1848851619991519232 |
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| author | Zainuddin, Mohamad Faiz Abbas, Zulkifly Muhammad Hafizi, Mardiah Hafizah Jusoh, Mohamad Ashry Razali, Mohd Hudzari |
| author_facet | Zainuddin, Mohamad Faiz Abbas, Zulkifly Muhammad Hafizi, Mardiah Hafizah Jusoh, Mohamad Ashry Razali, Mohd Hudzari |
| author_sort | Zainuddin, Mohamad Faiz |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | This study introduces an alternative method to determine percentage moisture content in a tuberous crop such as diosocorea hispida using microwave technique. Moisture content is an important parameter determining the quality of an agricultural product and their harvesting, transportation and storage processes. A microwave sensor was used in the study to penetrate deeper into the soft flesh of dioscorea hispida tuber sample. The reflection coefficient of the sensor was measured between 2 MHz and 4 GHz. The true percentage of moisture content of the sample was determined by the conventional oven drying method. The linear relationship between the conductance of the sensor and the true percentage of moisture content in the sample was determined. From the measured data, calibration equations relating conductance and percentage moisture content in the samples were established. The highest positive and negative correlations between conductance and percentage moisture content were found to be at 1.22 GHz and 3.94 GHz, respectively. The mean errors of the calibration equations at 1.22 GHz and 3.94 GHz are 10.80 and 6.95, respectively. |
| first_indexed | 2025-11-15T10:25:04Z |
| format | Conference or Workshop Item |
| id | upm-50667 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:25:04Z |
| publishDate | 2012 |
| publisher | Faculty of Engineering, Universiti Putra Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-506672017-03-02T06:18:51Z http://psasir.upm.edu.my/id/eprint/50667/ Determination of moisture content in the Dioscorea hispida tuber using microwave method Zainuddin, Mohamad Faiz Abbas, Zulkifly Muhammad Hafizi, Mardiah Hafizah Jusoh, Mohamad Ashry Razali, Mohd Hudzari This study introduces an alternative method to determine percentage moisture content in a tuberous crop such as diosocorea hispida using microwave technique. Moisture content is an important parameter determining the quality of an agricultural product and their harvesting, transportation and storage processes. A microwave sensor was used in the study to penetrate deeper into the soft flesh of dioscorea hispida tuber sample. The reflection coefficient of the sensor was measured between 2 MHz and 4 GHz. The true percentage of moisture content of the sample was determined by the conventional oven drying method. The linear relationship between the conductance of the sensor and the true percentage of moisture content in the sample was determined. From the measured data, calibration equations relating conductance and percentage moisture content in the samples were established. The highest positive and negative correlations between conductance and percentage moisture content were found to be at 1.22 GHz and 3.94 GHz, respectively. The mean errors of the calibration equations at 1.22 GHz and 3.94 GHz are 10.80 and 6.95, respectively. Faculty of Engineering, Universiti Putra Malaysia 2012 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/50667/1/_TechnicalPapers_CAFEi2012_101.pdf Zainuddin, Mohamad Faiz and Abbas, Zulkifly and Muhammad Hafizi, Mardiah Hafizah and Jusoh, Mohamad Ashry and Razali, Mohd Hudzari (2012) Determination of moisture content in the Dioscorea hispida tuber using microwave method. In: International Conference on Agricultural and Food Engineering for Life (Cafei2012), 26-28 Nov. 2012, Palm Garden Hotel, Putrajaya. (pp. 304-308). http://cafei.upm.edu.my/download.php?filename=/TechnicalPapers/CAFEi2012_101.pdf |
| spellingShingle | Zainuddin, Mohamad Faiz Abbas, Zulkifly Muhammad Hafizi, Mardiah Hafizah Jusoh, Mohamad Ashry Razali, Mohd Hudzari Determination of moisture content in the Dioscorea hispida tuber using microwave method |
| title | Determination of moisture content in the Dioscorea hispida tuber using microwave method |
| title_full | Determination of moisture content in the Dioscorea hispida tuber using microwave method |
| title_fullStr | Determination of moisture content in the Dioscorea hispida tuber using microwave method |
| title_full_unstemmed | Determination of moisture content in the Dioscorea hispida tuber using microwave method |
| title_short | Determination of moisture content in the Dioscorea hispida tuber using microwave method |
| title_sort | determination of moisture content in the dioscorea hispida tuber using microwave method |
| url | http://psasir.upm.edu.my/id/eprint/50667/ http://psasir.upm.edu.my/id/eprint/50667/ http://psasir.upm.edu.my/id/eprint/50667/1/_TechnicalPapers_CAFEi2012_101.pdf |