Drying behaviour of Andrographis paniculata in vacuum drying
Hempedu bumi (Andrographis paniculata, AP), also known as the king of bitters, is an herb commonly found in Asian communities for medicinal usage. The drying behaviour of AP at temperatures of 40, 50, and 60°C with vacuum pressures of 10 and 30 kPa was investigated in this study. The data were then...
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| Format: | Article |
| Language: | English |
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Faculty of Food Science and Technology, Universiti Putra Malaysia
2015
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| Online Access: | http://psasir.upm.edu.my/id/eprint/36090/ http://psasir.upm.edu.my/id/eprint/36090/1/%2857%29.pdf |
| _version_ | 1848848235748130816 |
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| author | Hee, Yen Yi Chong, Gun Hean |
| author_facet | Hee, Yen Yi Chong, Gun Hean |
| author_sort | Hee, Yen Yi |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Hempedu bumi (Andrographis paniculata, AP), also known as the king of bitters, is an herb commonly found in Asian communities for medicinal usage. The drying behaviour of AP at temperatures of 40, 50, and 60°C with vacuum pressures of 10 and 30 kPa was investigated in this study. The data were then fitted with semi-theoretical and theoretical thin-layer drying models. The results reveal that the drying time is significantly (p<0.05) affected by temperature and pressure. A two-term, thin-layer model was determined as the most suitable model to fit the drying behaviour of AP. The effective diffusivity and active energy for moisture diffusion were 10-13 m2/s and 33.4 kJ/mol, respectively. |
| first_indexed | 2025-11-15T09:31:17Z |
| format | Article |
| id | upm-36090 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:31:17Z |
| publishDate | 2015 |
| publisher | Faculty of Food Science and Technology, Universiti Putra Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-360902016-01-27T00:51:04Z http://psasir.upm.edu.my/id/eprint/36090/ Drying behaviour of Andrographis paniculata in vacuum drying Hee, Yen Yi Chong, Gun Hean Hempedu bumi (Andrographis paniculata, AP), also known as the king of bitters, is an herb commonly found in Asian communities for medicinal usage. The drying behaviour of AP at temperatures of 40, 50, and 60°C with vacuum pressures of 10 and 30 kPa was investigated in this study. The data were then fitted with semi-theoretical and theoretical thin-layer drying models. The results reveal that the drying time is significantly (p<0.05) affected by temperature and pressure. A two-term, thin-layer model was determined as the most suitable model to fit the drying behaviour of AP. The effective diffusivity and active energy for moisture diffusion were 10-13 m2/s and 33.4 kJ/mol, respectively. Faculty of Food Science and Technology, Universiti Putra Malaysia 2015 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/36090/1/%2857%29.pdf Hee, Yen Yi and Chong, Gun Hean (2015) Drying behaviour of Andrographis paniculata in vacuum drying. International Food Research Journal, 22 (1). pp. 393-397. ISSN 1985-4668; ESSN: 2231-7546 http://www.ifrj.upm.edu.my/22%20%2801%29%202015/%2857%29.pdf |
| spellingShingle | Hee, Yen Yi Chong, Gun Hean Drying behaviour of Andrographis paniculata in vacuum drying |
| title | Drying behaviour of Andrographis paniculata in vacuum drying |
| title_full | Drying behaviour of Andrographis paniculata in vacuum drying |
| title_fullStr | Drying behaviour of Andrographis paniculata in vacuum drying |
| title_full_unstemmed | Drying behaviour of Andrographis paniculata in vacuum drying |
| title_short | Drying behaviour of Andrographis paniculata in vacuum drying |
| title_sort | drying behaviour of andrographis paniculata in vacuum drying |
| url | http://psasir.upm.edu.my/id/eprint/36090/ http://psasir.upm.edu.my/id/eprint/36090/ http://psasir.upm.edu.my/id/eprint/36090/1/%2857%29.pdf |