Effects of Extraction Solvent on Polyphenolic Contents and Antioxidant Activities of Osmanthus fragrans' Seed

Effects of extraction solvent on the extraction yields of polyphenolic contents (total phenolic, flavonoid, anthocyanins and tannins contents) and antioxidant activitity of the Osmanthus fragrans' seed were examined for the first time. The extraction solvent included water and methanol, ethanol...

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Bibliographic Details
Published in2012 International Conference on Biomedical Engineering and Biotechnology pp. 217 - 220
Main Authors Yan Xiong, Liqun Rao, Li Xiong, Qiuhong Ai, Xuewen Wu
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2012
Subjects
ABTS
Antioxidant activity
Compounds
Correlation
DPPH
Educational institutions
Ethanol
Extraction solvent
FRAP
HPSA
Hydrogen
Methanol
Osmanthus fragrans' seed
Polyphenolics
Solvents
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Summary:Effects of extraction solvent on the extraction yields of polyphenolic contents (total phenolic, flavonoid, anthocyanins and tannins contents) and antioxidant activitity of the Osmanthus fragrans' seed were examined for the first time. The extraction solvent included water and methanol, ethanol, acetone (30%, 70% and 100% v/v, respectively). The antioxidant activities of different solvent extractions from the O. fragrans' seed were evaluated using different evaluation methods (DPPH, ABTS, FRAP and HPSA). Results demonstrated that the extraction solvent influenced significantly the antioxidant activity and polyphenolic contents of the O. fragrans' seed. Mixed solvent extracts showed the higher polyphenolic contents and antioxidant capacity than absolute solvent extracts and water extracts. 30% methanol, 70% ethanol and 70% acetone were recommended solvents for extracting the phenolic antioxidants from the O. fragrans' seed. Correlation analysis suggested that phenolics and flavonoids might be the material base to antioxidant activity of the O. fragrans' seed. DPPH and ABTS might be the appropriate method to measure the antioxidant activities of the O. fragrans' seed.
ISBN:1457719878
9781457719875
DOI:10.1109/iCBEB.2012.179