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All Journal Jurnal Farmasi Higea
Hasnah Hasnah
Sekolah Tinggi Ilmu Farmasi (STIFARM) Padang
Medicine & Pharmacology

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Pengaruh Cara Pengeringan terhadap Perolehan Kadar Senyawa Fenolat dan Aktivitas Antioksidan dari Daun Jambu Biji (Psidium guajava Linn.) Harrizul Rivai; Hasnah Hasnah; Mardius Syarif
Jurnal Farmasi Higea Vol 1, No 1 (2009)
Publisher : STIFARM Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (183.518 KB) | DOI: 10.52689/higea.v1i1.9

Abstract

A determination of phenolic compounds and antioxidant activity from Psidium guajava leaf by UV–Visible spectrophotometry has been done. The determination of phenolic compounds was carried out according to Folin-Ciocalteau method and antioxidant activity was evaluated by DPPH method, calculated as gallic acid equivalent (GAE). The determination of phenolic compound showed that the fresh sample , air drying, oven drying 40C and oven drying 60C contained 11.207; 4.129; 4.525 and 8.357 mg GAE/g Sample, IC50 of these sample were 0.218; 0.515; 0.50 and 0.315 mg/g, respectively.
Co-Authors Harrizul Rivai Mardius Syarif