Total phenolic content and antioxidant activity of Orthosiphon stamineus and Andrographis paniculata / Siti Latifah Abdullah
The total phenolic content and antioxidant activity of Orthosiphon stamineus and Andrographis paniculata leaves were investigated. The total phenolic content was evaluated using Folin-Ciocalteu reagent and antioxidant activity was evaluated by measuring free radical scavenging activity by 2,2-diphen...
| Main Author: | |
|---|---|
| Format: | Student Project |
| Language: | English |
| Published: |
Faculty of Applied Sciences
2010
|
| Subjects: | |
| Online Access: | http://ir.uitm.edu.my/id/eprint/23093/ http://ir.uitm.edu.my/id/eprint/23093/1/PPb_SITI%20LATIFAH%20ABDULLAH%20AS%2010_5.pdf |
| Summary: | The total phenolic content and antioxidant activity of Orthosiphon stamineus and Andrographis paniculata leaves were investigated. The total phenolic content was evaluated using Folin-Ciocalteu reagent and antioxidant activity was evaluated by measuring free radical scavenging activity by 2,2-diphenyl-l- picryhydrazyl (DPPH). The crude extracted from Andrographis paniculata leaves has higher amount of phenolic content (2.1708 mgGAE/g sample) than Orthosiphon stamineus crude extract (1.8884 mgGAE/g sample). The crude leaves extracted from Orthosiphon stamineus displayed the higher percentage of scavenging activities than Andrographis paniculata crude extract |
|---|