eprintid: 45170
rev_number: 6
eprint_status: archive
userid: 1762
dir: disk0/00/04/51/70
datestamp: 2025-07-22 06:56:06
lastmod: 2025-07-22 06:56:06
status_changed: 2025-07-22 06:56:06
type: article
metadata_visibility: show
creators_name: Lestari, Pramulani Mulya
creators_name: Supandi Supandi, Supandi
creators_id: pramulani_mlestari@uhamka.ac.id
creators_id: supandi@uhamka.ac.id
contributors_type: http://www.loc.gov/loc.terms/relators/AUT
contributors_type: http://www.loc.gov/loc.terms/relators/AUT
contributors_name: Lestari, Pramulani
contributors_name: Supandi, Supandi
contributors_id: pramulani_mlestari@uhamka.ac.id
contributors_id: supandi@uhamka.ac.id
title: Ethanol Extract Emulgel 96% Brokatul Rice (Oryza Sativa L.) 
as Antioxidant
ispublished: pub
subjects: RS
divisions: 48201
abstract: Bioactive compounds such as tocopherols, tocotrienols, and gamma oryzanol are 
contained in rice bran, which is a byproduct of the rice milling process. Gamma oryzanol in bran 
has high antioxidant activity, hence it can ward off free radicals. Previous studies have shown 
this antioxidant activity with an  
value of 0.591. This study aims to determine the antioxidant 
activity of various concentrations of ethanol extract of 96% brown rice bran in an emulgel 
preparation. The brown rice bran was extracted by maceration method using 96% ethanol 
solvent. Furthermore, it was made in an emulgel preparation with 3 variations in concentration, 
namely 0.591 (F2); 1 (F3); 1.5 (F4). Determination of antioxidant activity was carried out by the 
DPPH method and compared with emulgel without extract (F1). The results obtained showed 
that the F4 extract 1.5% had better activity than the other preparations with an  
value of 
108.3224 µg/mL and AAI 1.4561. Therefore, it can be concluded that the 96% ethanol extract 
emulgel preparation of brown rice bran has moderate antioxidant activity and its AAI value range 
falls into the range of strong antioxidant activity.
date: 2021
date_type: published
publisher: Purpose-LED Publishing
official_url: https://iopscience.iop.org/article/10.1088/1755-1315/755/1/012017
full_text_status: public
publication: IOP Conference Series: Earth and Environmental Science
refereed: TRUE
issn: 1755-1315
citation:   Lestari, Pramulani Mulya dan Supandi Supandi, Supandi  (2021) Ethanol Extract Emulgel 96% Brokatul Rice (Oryza Sativa L.) as Antioxidant.  IOP Conference Series: Earth and Environmental Science.   ISSN 1755-1315     
document_url: http://repository.uhamka.ac.id/id/eprint/45170/1/2021_Ethanol%20Extract%20Emulgel%2096%25%20Brokatul%20Rice%20%28Oryza%20Sativa%20L.%29%20as%20Antioxidant.pdf