文章摘要
Effect of hydrogen peroxide treatment on color andactivity of dried-litchi fruit polysaccharide
  
DOI:10.16768/j.issn.1004-874X.2016.12.013
Author NameAffiliation
彭 刚,张晓辉,陈梓欣,黄略略,张树飞,乔 方 (深圳职业技术学院应用化学与生物技术学院广东 深圳 518055) 
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Abstract:
      The crude polysaccharide of dried-litchi fruit often has a large amount of pigments,which can be cleaned up by hydrogen peroxide in the further step. In order to study the effect of hydrogen peroxide concentration on dried-litchi fruit polysaccharide,this paper evaluated the changes of solution color,content and activity of polysaccharide after hydrogen peroxide treatment,and selected the best concentration. The results showed that when the hydrogen peroxide concentration was 3%,the polysaccharide solution color would turn white,and polysaccharide loss was limited in 20%,and the free radical scavenging activity of DPPH and ATBS had not obvious reduction. 3% was better than other concentrations.
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