KOVALEN: Jurnal Riset Kimia
Vol. 9 No. 3 (2023): December Edition

Total Metabolit Sekunder dan Uji Aktivitas Antioksidan Daun Juwet (Syzygium cumini L.) dengan Spektrofotometer Uv-Vis: Total Secondary Metabolites and Test of Antioxidant Activity of Juwet Leaves (Syzygium cumini L.) with Uv-Vis Spectrophotometer

Tien Wahyu Handayani Tien (Unknown)
Ni Kadek Evy Rasmiyanti (Program Studi S1 Farmasi, STIFA Pelita Mas Palu)
Joni Tandi (Program Studi S1 Farmasi, STIFA Pelita Mas Palu)
Magfirah (Program Studi S1 Farmasi, STIFA Pelita Mas Palu)

Article Info

Publish Date
31 Dec 2023

Abstract

The aim of this research is to determine the total amount of secondary metabolites (alkaloids, flavonoids, saponins and tannins) contained in the ethanol juice of juwet leaves (Syzygium cumini L.) using the UV-Vis spectrophotometry method and to determine the antioxidant activity of the ethanol juice of juwet leaves based on IC50 value. Determination of total levels of secondary metabolites using UV-Vis spectrophotometry and antioxidant testing using the DPPH method. The results of qualitative analysis of the ethanol juice of juwet leaves contained secondary metabolite compounds, namely flavonoids, saponins, tannins and alkaloids. The average value obtained for the level of total secondary metabolites for flavonoid compounds was 0.417% w/w., saponins 0.766 w/w., tannins 0.282 w/w and alkaloids 0.384% w/w. The results of testing the antioxidant activity of juwet leaf ethanol extract and quercetin as a comparison had antioxidant activity, the average IC50 results were 14.289 ± 0.255 ppm and 102.45 ppm, therefore they were classified as moderate antioxidants.

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Journal Info
KOVALEN: Jurnal Riset Kimia
Website

Abbrev

kovalen

Publisher

Universitas Tadulako

Subject

Chemical Engineering, Chemistry & Bioengineering Chemistry

Description

KOVALEN: Jurnal Riset Kimia is a peer-reviewed journal of chemistry published by the Tadulako University, Indonesia. This journal concern with publishing the original research articles, review articles, and the current issues related to chemistry. Publishing frequency 3 issues per year, in April, ...