In Vitro Antioxidant Activity of Feruloyl Arabinose from Maize Bran
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Abstract:
In this study feruloylated oligosaccharides (FOs) was released from maize bran by hydrochloric acid hydrolysis, and feruloyl arabinose (F-Ara) was obtained by D301 macroporous resin chromatography followed by polyamide resin purification from FOs. After structural identification, the antioxidant activity of F-Ara was evaluated in vitro by DPPH and superoxide radical scavenging activity assay and reducing power assay. F-Ara exhibited a good radical-scavenging activity in vitro when compared to standard antioxidants such as ferulic acid (FA), BHA and L-ascorbic acid (VC). The radical-scavenging activity depended on the concentration and increases with increasing dose of sample. The highest reducing value of F-Ara compared with FA and VC at a dosage of 0.6 mmol/L indicated that F-Ara had a considerable reducing power. The present study suggested that F-Ara can be a natural and efficient antioxidant used in food, medicine and cosmetic.
