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8168652 
Journal Article 
Antioxidant activity from ethanol extract and fractions of red flame ivy (Hemigraphis colorata Hall. F.) leaf using 1,1-diphenyl-2-picrylhydrazyl 
Herawati, IE; Hanifah, HN 
2018 
JPR Solutions 
10 
Special Issue 5 
3791-3793 
English 
Context: Antioxidants can prevent free radical formation. Natural antioxidants found in many plants, such as red flame ivy (Hemigraphis colorata Hall.F.) Aims: The aim of the study was to determine the antioxidant activity extract and fractions of red flame ivy (Hemigraphis colorata Hall. F.) leaf. Methods: The sample was extracted with ethanol 70% in reflux. The antioxidant activity red flame ivy was determined by 1,1-diphenyl-2-picrylhydrazyl method. Results: The IC50 value was 98.52 ppm for ethyl acetate fraction, 140.41 ppm for n-hexane fraction, 218.4 ppm for water fraction, and 374.3 ppm for extract. Conclusions: Ethyl acetate fraction of H. colorata leaf is a strong category for antioxidant activity. © 2018 JPR Solutions. All rights reserved. 
1; 1-diphenyl-2-picrylhydrazyl; Antioxidant; Hemigraphis colorata Hall. F. leaf