Mahyuddin Mahyuddin
Sekolah Tinggi Ilmu Farmasi (STIFARM) Padang

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : Jurnal Farmasi Higea

Pengaruh Perebusan Terhadap Kadar Senyawa Fenolat Total dan Daya Antioksidan Dari Daun Kol (Brassica oleracea L. Var. capitata L.) Mardius Syarif; Mutiara Vani; Mahyuddin Mahyuddin
Jurnal Farmasi Higea Vol 1, No 1 (2009)
Publisher : STIFARM Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (175.159 KB) | DOI: 10.52689/higea.v1i1.7

Abstract

A determination of total phenolic compounds and antioxidant activity from cabbage leaves (Brassica olerace L var capitata L,) using spectrophotometry has been done. The determinan of total phenolic compounds was carried out according to Folin-Ciocalteu method and antioxidant activity was evaluated by DPPH method. Result of total phenolic compounds determinant showed that a fresh sample, sample boiled for 10 minutes, sample boiled for 20 minutes, sample boiled for 30 minutes were 363.395 μg/g, 44.198 μg/g, 39.510 μg/g, 33.156 μg/g while antioxidant activity at fresh sample were 60.55% in 0,1 g/mL fresh extract and for 10 minutes, sample boiled for 20 minutes, sample boiled for 30 minutes were 75.16%; 45.65%; 44.40%. Based on result of this research, concluded that treatment of boiling can reduce total phenolic compounds and antioxidant activity from cabbage leaves (Brassica olerace L. var capitata L,).
Penentuan Kadar Senyawa Fenolat Dan Uji Aktivitas Antioksidan Pada Buah Terung Belanda (Cyphomandra betacea (Cav.) Sendtn) Secara Spektrofotometri Visibel Fithriani Armin; Yuli Yani Dewi; Mahyuddin Mahyuddin
Jurnal Farmasi Higea Vol 3, No 1 (2011)
Publisher : STIFARM Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (751.606 KB) | DOI: 10.52689/higea.v3i1.39

Abstract

Levels Determination of phenolic compounds and antioxidant activity assay of eggplant belanda fruit (Cyphomandra betacea (Cav.) Sendtn) with  visible spektofotometri has  been done. Determination of phenolic compounds performed by the method of Folin ciocalteu, while DPPH is used as an antioxidant. The antioxidant activity is determined by its IC50 value. In this treatment gallic acid used as a comparison. The results showed that the levels of phenolic compounds from the sample extract solution is 0.288845 mg / g; 0.29678 mg / g and 0.28964 mg / g respectively. The antioxidant activity determined by IC50 values, where the value of its IC50 was 240.0811 µg / mL; 204.5010 µg / mL; 196.8531 µg / mL.