Title: Extraction of Polyphenols fromAmygdalus pedunculata Seed and the Antioxidant Capacity
Abstract: Single factor and orthogonal experiments were adopted to examine the optimal procedure of ultrasound aided extraction of phenols from the kernel of Amygdalus pedunculata.The antioxidant activity of the extracts was measured by DPPH free radical method,ABTS and FRAP methods.The optimal conditions were obtained as solvent:20% ethanol,the ratio of material being extracted to solvent:1∶20,temperature:40℃,time of extraction aided by ultrasound:60min,under these conditions,the yield of extract was 2.08mg/g.The impacts of the factors influencing the extraction were ethanol concentration timeratio of material to solventtemperature.The antioxidant activities of the extracts from the materials collected from northern Shaanxi were higher than those from other locations,indicating that suitable growing conditions were favorable for the accumulation of phenols.
Publication Year: 2015
Publication Date: 2015-01-01
Language: en
Type: article
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