Citation
Chin N I., . and So`bah A., . and Yus Aniza Y., . (2009) Compression characteristics Orthosiphon stamineus extract. [Proceedings Paper]
Abstract
This study presents compression characteristics of a Malaysian herb extract from Orthosiphon stamineus or also known as misai kucing. This herb has been used due to its medical and nutritional advantages. The main purpose of this project is to investigate the compression characteristics of the extract which is important for downstream processing in herbal industries. A commercial universal testing machine with a 13-mm diameter cylindrical stainless steel uniaxial die was used to compress the extract. A range of pressure from 7.5 to 74 MPa was applied with a compression speed of 5 mm min·l. The results were presented through tensile strength and pressure-volume relationships in order to study the effect of the quantity of feed powder. Four classical compression models were used to validate the data using the Kawakita and Ludde equation. Based on the model used it was found that at similar compression force 0.5 g amount of feed powder compressed more easily compared to 1.0 g of feed powder. The tensile strength of compressed 0.5 g of feed powder was stronger. Based on this simple approach; a better understanding of the compression characteristics of this herb is obtained and it is essential for further development of herbal processing industry in Malaysia.
Download File
Full text available from:
|
Abstract
This study presents compression characteristics of a Malaysian herb extract from Orthosiphon stamineus or also known as misai kucing. This herb has been used due to its medical and nutritional advantages. The main purpose of this project is to investigate the compression characteristics of the extract which is important for downstream processing in herbal industries. A commercial universal testing machine with a 13-mm diameter cylindrical stainless steel uniaxial die was used to compress the extract. A range of pressure from 7.5 to 74 MPa was applied with a compression speed of 5 mm min·l. The results were presented through tensile strength and pressure-volume relationships in order to study the effect of the quantity of feed powder. Four classical compression models were used to validate the data using the Kawakita and Ludde equation. Based on the model used it was found that at similar compression force 0.5 g amount of feed powder compressed more easily compared to 1.0 g of feed powder. The tensile strength of compressed 0.5 g of feed powder was stronger. Based on this simple approach; a better understanding of the compression characteristics of this herb is obtained and it is essential for further development of herbal processing industry in Malaysia.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| Additional Information: | Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. mal QK99 M3S471 2008 Call Number |
| AGROVOC Term: | HERBACEOUS PLANTS |
| AGROVOC Term: | MOULDING |
| AGROVOC Term: | STRENGTH |
| AGROVOC Term: | TRADITIONAL MEDICINES |
| AGROVOC Term: | MALAYSIA |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 05:14 |
| URI: | http://webagris.upm.edu.my/id/eprint/11349 |
Actions (login required)
 |
View Item |
