UJI AKTIVITAS ANTIOKSIDAN DAN PENETAPAN KADAR FENOLAT TOTAL FRAKSI AIR DAUN KETAPANG (Terminalia catappa L.) DENGAN METODE DPPH (2,2-diphenyl-1-picrylhydrazyl) DAN METODE FOLIN-CIOCALTEU
| Main Authors: | Sahala, Aldo, Soegihardjo, C.J. |
|---|---|
| Format: | Article info application/pdf |
| Bahasa: | eng |
| Terbitan: |
Sanata Dharma University
, 2012
|
| Online Access: |
http://e-journal.usd.ac.id/index.php/JFSK/article/view/76 http://e-journal.usd.ac.id/index.php/JFSK/article/view/76/64 |
Daftar Isi:
- Abstract: The aqueous fraction of methanolic extract of Ketapang (Terminalia catappa L.). was investigated for its DPPH (2,2-diphenyl-1-picrylhydrazyl) free radical scavenger activity and the total amount of phenolic using Folin-Ciocalteu method. It was found that the aqueous fraction of methanolic extract of Ketapang tested showed significant DPPH free radicalscavenging with IC50 value 34,071 ± 0,424 μg/mL. The total phenolic amount was 5.429 ± 0.110 mg equivalent mass value of gallic acid per gram aqueous fraction of the methanolic extract of ketapang leaves.Keywords: aqueous fraction, methanolic extract, Terminalia catappa, DPPH, total phenolic.