食品工业科技2017，Vol.38Issue(15)：40-44,5.DOI:10.13386/j.issn1002-0306.2017.15.009
小麦淀粉加工废水中阿拉伯木聚糖的理化性质及抗氧化活性研究
Study on physicochemical properties and antioxidant activity of Arabinoxylan from wheat starch wastewater
摘要
Abstract
Arabinoxylan were prepared from wheat starch wastewater.The physicochemical properties and antioxidant activity of AX were analyzed by laser light scattering method,IC and in vitro experiments.The results showed that the AX from wheat starch wastewater had a strong reducing ability and a scavenging capacity of DPPH free radicals,while the ability of scavenging hydroxyl radical of AX was relatively weak.Ethyl alcohol fractionation precipitation can effectively separate the AX with different degree of branching,monosaccharide ratio and molecular weight.The AXE(60％ ethyl alcohol precipitates)had higher purity(86.81％).The galactose (Gal)content and ratio of Ara/Xyl of AX increased with the increasing concentrations of ethanol,while the molecular weight decreased.The molecular weight,branched structure and monosaccharide ratio of AX played an important role in antioxidant activity.The AX with low molecular weight and a higher degree of branching showed a greater capability to provide hydrogen atoms,while the ability to complex free metal ions was relatively weak.关键词
小麦淀粉废水/阿拉伯木聚糖/相对分子质量/抗氧化性Key words
wheat starch wastewater/arabinoxylan/Mw/antioxidant activity分类
轻工纺织引用本文复制引用
田贝贝,陈洁,王远辉..小麦淀粉加工废水中阿拉伯木聚糖的理化性质及抗氧化活性研究[J].食品工业科技,2017,38(15):40-44,5.基金项目
以小麦副产物生产阿拉伯木聚糖的优化合作研究项目(2015DFA30380). （2015DFA30380）
