Pengaruh perbandingan Etanol-Air Sebagai Pelarut ekstraksi terhadap perolehan ekstraktif, kadar senyawa fenolat dan aktivitas antioksidan dari daun jambu biji (Psidium guajava Linn)
| Main Authors: | Harrizul, Rivai, Hazli, Nurdin, Hamzar, Suyani, Amri, Bakhtiar |
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| Format: | Article PeerReviewed Book Lainnya |
| Bahasa: | eng |
| Terbitan: |
Jurusan Farmasi Fakultas MIPA Universitas Andalas
, 2008
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| Subjects: | |
| Online Access: |
http://repo.unand.ac.id/2660/1/Jurnal_06.pdf http://repo.unand.ac.id/2660/2/Jurnal_05.ps http://repo.unand.ac.id/2660/ |
Daftar Isi:
- An effect of ethanol-water ratio as extraction solvent in gaining an extract, phenolic content and antioxidant activity of Psidium guajava Linn. Leaves have been investigated. The ethanol water ratio tested were 100:0, 80:20, 70:30, 60:40, 50:50, and 40:60 respectively, result revealed that the ethanol water ratio had significant effect on extractive obtainability, phenolic concent and antioxidant activity (P<0,05). Among the ethanol-water ratio tested, the best result was obtained by ethanol water ratio 50:50 as extraction solvent for Psidium guajava Linn, leaves. Keyword: Antioxidant, Psidium guajava Linn, extraction solvent, phenolic compounds.