| Institution: | 1. Hebei Normal University of Science and Technology, Qinhuangdao 066600, China;2. School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China;3. Food Science and Technology Program, Beijing Normal University–Hong Kong Baptist University United International College, Zhuhai 519085, China;1. Hebei Normal University of Science and Technology, Qinhuangdao, Hebei 066600, China;2. School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China;3. Food Science and Technology Program, Beijing Normal University – Hong Kong Baptist University United International College, Zhuhai, Guangdong 519085, China;1. State Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, PR China;2. School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, PR China;3. Wheat Marketing Center, Inc., 1200 N.W. Naito Parkway, Suite 230, Portland, OR 97209, USA;1. Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya''an 625014, Sichuan, China;2. Tibetan Gan-Yu-Cang Agricultural Products Development Co., Ltd, Changdu 855700, Tibet, China;1. Hebei Normal University of Science and Technology, Qinhuangdao 066600, Hebei, China;2. School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China;3. Food Science and Technology Program, Beijing Normal University—Hong Kong Baptist University United International College, Zhuhai 519085, Guangdong, China |
| Abstract: | The effect of particle size of hull-less barley (HLB) bran DF on antioxidant and physicochemical properties was investigated. HLB bran and extracted DF was ground by regular and superfine grinding, their particle sizes were determined using laser diffraction method. The results showed that superfine grinding could significantly pulverize DF particles to micro-scale; the particle size distribution was close to a Gaussian distribution. The soluble DF in HLB bran was increased effectively with superfine grinding. Insoluble DF with submicron scale showed increased total phenolic content (TPC), DPPH radical scavenging activity and ferric reducing antioxidant power (FRAP). With particle size reduction, the water retention capacity (WRC), swelling capacity (SC), oil binding capacity (OBC), and nitrite ion absorption capacity (NIAC) were significantly (p < 0.05) increased and the water holding capacity (WHC) had no significant change. A kind of health beneficial DF with higher soluble DF content, WRC, SC, OBC, NIAC and antioxidant activity was obtained using superfine grinding. |
