title: In vitro antioxidant activity of feruloyl arabinose isolated from maize bran by acid hydrolysis.
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, reducing power assay and chelating activity assay. The results show that F-Ara exhibited antioxidant activity in vitro when compared to standard antioxidants such as butylated hydroxyanisole, ferulic acid and L-ascorbic acid. The antioxidant activity depends on the concentration and increases with increasing dose of sample. The present study suggests that F-Ara possesses promising future for its strong reducing power, chelating activity and free radical-scavenging activity. Therefore, it can be a natural and efficient antioxidant used in food, medicine and cosmetic.
authors: College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, 510641 People's Republic of China.
authors: Qiling
authors: Q
authors: Lin
authors: Department of Food Science and Technology, Jinan University, Guangzhou, 510632 People's Republic of China.
authors: Shiyi
authors: S
authors: Ou
authors: College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, 510641 People's Republic of China.
authors: Qibiao
authors: Q
authors: Wen
keywords: Antioxidant activity; Feruloyl arabinose; Free radical; Maize bran