Article Per Year (5 Year)
p-Index From 2019 - 2024
0
P-Index
This Author published in this journals
All Journal Indonesian Journal of Chemistry
Agnes Nora Iska Harnita
Faculty of Pharmacy, Sanata Dharma University, Yogyakarta
Chemical Engineering, Chemistry & Bioengineering Chemistry

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
Inhibition of Lipid Peroxidation Induced by Ultraviolet Radiation by Crude Phlorotannis Isolated from Brown Algae Sargassum hystrix v. buxifolium C. Agardh Agnes Nora Iska Harnita; Ign. Edi Santosa; Sudibyo Martono; Sudarsono Sudarsono; Sitarina Widyarini; Frans J.M. Harren
Indonesian Journal of Chemistry Vol 13, No 1 (2013)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2295.873 KB) | DOI: 10.22146/ijc.21320

Abstract

This study examines the antioxidant activity of crude phlorotannins from the brown algae Sargassum hystrix v. buxifolium (Chauvin) J. Agardh, through the inhibition of a lipid peroxidation reaction that is induced by the UV radiation. The antioxidant activity during the UV exposure was investigated using the laser-based photoacoustic method for the detection of the ethylene as indicator for lipid peroxidation. This involves an experiment that isolated crude phlorotannins from the ethyl acetate fraction of the Sargassum hystrix methanol extract, hereafter referred to as PFSH. It results in the antioxidant activity as a potent lipid peroxidation inhibitor. Statistically, such antioxidant activity is not significantly different than the commercial antioxidant, which is vitamin C (p > 0.05). The amount of the total phlorotannins, using the Folin-Ciocalteu method, was measured to be approximately 0.13% w/w. In addition, it is found that PFSH contains phlorotannins with low molecular weight (MW) (
Co-Authors Frans J.M. Harren Ign Edi Santosa Sitarina Widyarini Sudarsono Sudarsono Sudibyo Martono