Citation
Hee Y.Y., . and Chong G.H., . Drying behaviour of Andrographis paniculata in vacuum drying. pp. 393-397. ISSN 22317546
Abstract
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 60oC 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 (p0.05) 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.
Download File
Full text available from:
Official URL: http://ifrj.upm.edu.my/22%20(01)%202015/(57).pdf
|
Abstract
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 60oC 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 (p0.05) 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.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Medicinal herbs |
| AGROVOC Term: | Acanthaceae |
| AGROVOC Term: | Vacuum drying |
| AGROVOC Term: | High temperature |
| AGROVOC Term: | Pressure |
| AGROVOC Term: | Moisture content |
| AGROVOC Term: | Herbs (herbaceous plants) |
| Geographical Term: | Malaysia |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 26 Apr 2025 16:10 |
| URI: | http://webagris.upm.edu.my/id/eprint/22028 |
Actions (login required)
 |
View Item |
