Title of article
Effect of different extraction techniques on total phenolic content and antioxidant activity of Quercus infectoria galls
Author/Authors
Hasmida, M. N. Universiti Teknologi Malaysia - Centre of Lipid Engineering and Applied Research, Faculty of Chemical Engineering, Malaysia , Nur Syukriah, A. R. Universiti Teknologi Malaysia - Faculty of Chemical Engineering - Department of Bioprocess Engineering, Malaysia , Liza, M. S. Universiti Teknologi Malaysia - Centre of Lipid Engineering and Applied Research, Faculty of Chemical Engineering - Department of Bioprocess Engineering, Malaysia , Mohd Azizi, C. Y. Universiti Teknologi Malaysia - Centre of Lipid Engineering and Applied Research, Faculty of Chemical Engineering, Malaysia
From page
1075
To page
1079
Abstract
In this work, the bioactive compounds which was obtained by extracting Quercus infectoria via two extraction methods; Soxhlet and supercritical carbon dioxide (SC-CO2) extraction, were analyzed using total phenolic content and DPPH (2,2-diphenyl-1-picryl hydrazyl) free radical scavenging activity analysis. The aim of this study is to compare the total phenolic content and antioxidant activity of Quercus infectoria extract acquired from SC-CO2 extraction with those from Soxhlet extraction method. The results showed the used of SC-CO2 extraction give the lowest extraction yield as compared to Soxhlet extraction. The selectivity of Q. infectoria extracts using SC-CO2 extraction was better which in contrast with Soxhlet extraction method since it shows higher total phenolic content (143.75 ± 1.06 mg GAE/g sample). This study also revealed that the extracts from both extraction methods can posses’ antioxidant activity and comparable to those obtained from commercial antioxidant.
Keywords
Q. infectoria , SC , CO2 , Soxhlet , Total phenolic content , Antioxidant activity , Extraction method
Journal title
International Food Research Journal
Journal title
International Food Research Journal
Record number
2560905
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