TY - JOUR
T1 - H2O2 oxidative preparation, characterization and antiradical activity of a novel oligosaccharide derived from flaxseed gum
AU - Liang, Shan
AU - Liao, Wenzhen
AU - Ma, Xiang
AU - Li, Xiaofeng
AU - Wang, Yong
N1 - Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2017/9/1
Y1 - 2017/9/1
N2 - In this present study, a novel flaxseed gum oligosaccharide (FGOS) was prepared by H2O2 oxidative degradation method followed by physicochemical properties characterization and antiradical activity evaluation. Results indicated that the degradation rate of flaxseed gum is 37.81% under the optimum conditions (i.e., reaction temperature of 120 °C, H2O2 concentration of 0.2 M and reaction time of 2.0 h) and FGOS as a reddish brown semisolid was obtained. Physicochemical properties identification showed that FGOS has a molecular weight of 1047 Da and is a typical oligosaccharide which contains uronic acid. Characterizations showed FGOS is acid glycopyranose that consists of rhamnose, fucose, xylose, mannose, arabinose, glucose and galactose with mole percentages of 8.26%, 7.54%, 12.85%, 7.93%, 29.31%, 14.28% and 19.82% respectively. FGOS exhibited good free radical scavenging ability (OH[rad] 82.58%, DPPH[rad] 52.74% and ABTS[rad] 91.29% at most, respectively), suggesting its potent antiradical activity.
AB - In this present study, a novel flaxseed gum oligosaccharide (FGOS) was prepared by H2O2 oxidative degradation method followed by physicochemical properties characterization and antiradical activity evaluation. Results indicated that the degradation rate of flaxseed gum is 37.81% under the optimum conditions (i.e., reaction temperature of 120 °C, H2O2 concentration of 0.2 M and reaction time of 2.0 h) and FGOS as a reddish brown semisolid was obtained. Physicochemical properties identification showed that FGOS has a molecular weight of 1047 Da and is a typical oligosaccharide which contains uronic acid. Characterizations showed FGOS is acid glycopyranose that consists of rhamnose, fucose, xylose, mannose, arabinose, glucose and galactose with mole percentages of 8.26%, 7.54%, 12.85%, 7.93%, 29.31%, 14.28% and 19.82% respectively. FGOS exhibited good free radical scavenging ability (OH[rad] 82.58%, DPPH[rad] 52.74% and ABTS[rad] 91.29% at most, respectively), suggesting its potent antiradical activity.
KW - Antiradical activity
KW - Flaxseed gum
KW - Oligosaccharide
KW - Oxidative degradation
KW - Physicochemical properties
KW - Preparation
KW - Structural composition
UR - http://www.scopus.com/inward/record.url?scp=85015067508&partnerID=8YFLogxK
U2 - 10.1016/j.foodchem.2017.03.029
DO - 10.1016/j.foodchem.2017.03.029
M3 - Article
SN - 0308-8146
VL - 230
SP - 135
EP - 144
JO - Food Chemistry
JF - Food Chemistry
ER -