Abstract
Bisbul (Diospyros discolor Willd.) is a plant of the Ebenaceae family and red dragon (Hylocereus polyrhizus) is a plant of the Cactaceae family. Bisbul and red dragon have bioactive compounds are flavonoids that act as antioxidants. The purpose of this study was measure antioxidant activity from ethanol extract of bisbul pulp and ethanol extract of red dragon fruit stem by DPPH method (1,1-diphenyl-2-picrylhydrazin). Extraction by maseration method and using 96% ethanol as solution. Antioxidant activity assay using the immersion method of DPPH measured absorption at a wavelenght 517 nm and compared with vitamin C. The result showed that the ethanol extract of bisbul pulp (IC50 46.00 ìg/mL) more strong antioxidant activity compared the ethanol extract of red dragon fruit stem (IC50 1020.96 ìg/mL).
Highlights
PENDAHULUAN Antioksidan merupakan zat yang mampu memperlambat atau mencegah terjadinya proses oksidasi (Ravimannan dan Nisansala, 2017) dan mengeliminasi radikal bebas yang dapat menyebabkan kerusakan sel (Khan et al., 2016)
Bisbul and red dragon have bioactive compounds are flavonoids that act as antioxidants
Journal of Advanced Research in Fluid Mechanism and Thermal Sciences 61(2): 170-180
Summary
Desember 2020 Vol 21 No 4 : 596-603 buah naga merah, karena belum banyak diteliti. Penelitian yang dilakukan oleh Fidrianny et al (2017) menunjukkan bahwa semua bagian ekstrak etanol buah naga super merah (Hylocereus costaricensis) merupakan admnelnt.igoaknOsilndeiahlnaiykIaCanr5g0ebsnaaanggiiaatntukb, uaptaaetnr(IlgCuy5a0di
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