title: The extraction of different proteins in selenium enriched peanuts and their antioxidant properties.
abstract: In this study, the selenium enriched peanuts and the different solubility proteins extracted from them were investigated. The dried defatted selenium enriched peanuts (SeP) powder (0.3147 μg/g) had a 2.5-fold higher mean total selenium concentration than general peanuts (GP) power (0.1233 μg/g). The SeP had higher concentration of selenium, manganese and zinc than that of GP, but less calcium. The rate of extraction of protein was 23.39% for peanuts and alkali soluble protein was the main component of protein in SeP, which accounted for 92.82% of total soluble protein and combined selenium was 77.33% of total selenium protein. In different forms of proteins from SeP, the WSePr due to higher concentration of selenium had higher DPPH free-radical scavenging activity, higher reducing activity and longer induction time than other proteins.
authors.affiliation: School of Life Science & Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
authors.forename: P
authors.initials: P
authors.lastname: Zhao
authors.affiliation: School of Life Science & Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Wang
authors.affiliation: School of Life Science & Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: School of Life Science & Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
authors.forename: T
authors.initials: T
authors.lastname: Guo
authors.affiliation: School of Life Science & Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
authors.forename: Z
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: School of Life Science & Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
authors.forename: W J
authors.initials: WJ
authors.lastname: Zhang
authors.affiliation: School of Life Science & Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
authors.forename: X G
authors.initials: XG
authors.lastname: Zhang
authors.affiliation: Faculty of Science and Natural Resources, Universiti Malaysia Sabah, 44800 Kota Kinabalu, Sabah, Malaysia.
authors.forename: Muhammad Aqeel
authors.initials: MA
authors.lastname: Ashraf
keywords: Antioxidant activity; Protein; Selenium; Selenium enriched peanuts