Citation
Azura Amid, . and Jamal P., . and Jaswir I., . and Siti Fathimah Putery Jemain, . and Raha Ahmad Raus, . Effects of process conditions on the ultrasonic extraction of phenolics scavenger from Curcuma caesia rhizome. S422-S427.
Abstract
Medicinal properties of Malaysian Curcuma caesia have not been studied extensively even though it has been used as a traditional remedy. This study examined the effects of various extraction temperatures (30 40 50 60 70C) using a high frequency (40 kHz) ultrasonic extraction method time (30 60 90 and 120 minutes) pH (1 2 3 4 5 6 7 8 9 10) on the extraction yield of total phenolics and DPPH (2 2-diphenyl-1-picrylhydrazyl) scavenging activities from C. caesia rhizome. Extraction was most efficient at pH 6.0 while the extraction time of 30 minutes and temperature of 60C was the best in terms of total phenolics content and DPPH scavenging activity. This study is important due to its ability to improve extraction of total phenolics compound using ultrasonic extraction method while maintaining a relatively high DPPH scavenging activity of the extracts.
Download File
Full text available from:
Official URL: http://www.ifrj.upm.edu.my/24%20(07)%202017%20supp...
|
Abstract
Medicinal properties of Malaysian Curcuma caesia have not been studied extensively even though it has been used as a traditional remedy. This study examined the effects of various extraction temperatures (30 40 50 60 70C) using a high frequency (40 kHz) ultrasonic extraction method time (30 60 90 and 120 minutes) pH (1 2 3 4 5 6 7 8 9 10) on the extraction yield of total phenolics and DPPH (2 2-diphenyl-1-picrylhydrazyl) scavenging activities from C. caesia rhizome. Extraction was most efficient at pH 6.0 while the extraction time of 30 minutes and temperature of 60C was the best in terms of total phenolics content and DPPH scavenging activity. This study is important due to its ability to improve extraction of total phenolics compound using ultrasonic extraction method while maintaining a relatively high DPPH scavenging activity of the extracts.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Curcuma caesia |
| AGROVOC Term: | Zingiberaceae |
| AGROVOC Term: | Rhizomes |
| AGROVOC Term: | Extraction |
| AGROVOC Term: | Extracts |
| AGROVOC Term: | Ultrasound |
| AGROVOC Term: | Phenolic content |
| AGROVOC Term: | Free radicals |
| AGROVOC Term: | Analytical methods |
| AGROVOC Term: | Temperature |
| Geographical Term: | Malaysia |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 28 Apr 2025 05:34 |
| URI: | http://webagris.upm.edu.my/id/eprint/23961 |
Actions (login required)
 |
View Item |
