Comparison of citrus peels as a source of valuable components - Polyphenols and antioxidants
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2013-11-05
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Abstract
The aim of this study is to compare some citrus fruits' peels: mandarins and grapefruits, as sources of polyphenolic compounds, to determine the antioxidant activity of the extracts and to find the effect of the operational conditions on the final extract properties. It was found that the both materials are rich of polyphenols and exhibit high antioxidant activity; better results are obtained for the grapefruit peels. The flavonoids' content in both materials studied is quite close. The solid-to-liquid ratio plays an important role in the extraction process. The better results are obtained for the ratio of 1:10. The results of this study confirm that the citrus peels are promising source of natural antioxidants and polyphenols.