Yesmanelly Potapovich, Yesmanelly (2018) Uji Aktivitas Antioksidan Ekstrak Umbi Bawang Dayak (Eleutherine bulbosa) Yang Berasal Dari Daerah Malinau Kabupaten Malinau kota Dengan Metode Spektrofotometri UV-Vis Menggunakan Pereaksi DPPH. Other thesis, Universitas Indonesia Timur.
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Abstract
The dayak bulbs (Eleutherine bulbosa) are known to contain tannin
compounds, alkaloids, saponins, phenols, flavonoids, and triterpenoids /
steroids. The content of compounds in Eleutherine bulbosa is believed to
have antioxidant activity or as an anti-free radical. This study aims to
determine the antioxidant activity of tuber extract of Eleutherine bulbosa.
Eleutherine bulbose bulb is extracted by maceration method with 96%
ethanol solvent. Antioxidant test using DPPH reagent using UV-Vis
spectrophotometric method at 515 nm wavelength with concentration 4, 8,
12, 16, 20 ppm and vitamin c as comparison with concentration 2, 4, 6, 8,
10 ppm as positive control. The results showed that Eleutherine bulbosa
bulb has a value of lC50 0.9021 with vitamin C has a value of lC50 0.9012.
Keywords: Eleutherine bulbosa, lC50, antioxidant
| Item Type: | Thesis (Other) |
|---|---|
| Subjects: | R Medicine > RS Pharmacy and materia medica |
| Divisions: | Fakultas Farmasi > Farmasi S1 |
| Depositing User: | Unnamed user with email [email protected] |
| Date Deposited: | 08 Jan 2024 06:06 |
| Last Modified: | 08 Jan 2024 06:06 |
| URI: | https://repository.uit.ac.id/id/eprint/248 |
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