A comparison of the reduction of alginic acid by different methods

Polysaccharides;Alginic acid;Reduction;Laminaria hyperborea;Acid groups;Lewis acids;Lewis bases;Functional groups;Reaction mechanisms

Manning, James Harvey ; Institute of Paper Science and Technology

University:Georgia Institute of Technology

Department:Institute of Paper Science and Technology

关键词: Polysaccharides;    Alginic acid;    Reduction;    Laminaria hyperborea;    Acid groups;    Lewis acids;    Lewis bases;    Functional groups;    Reaction mechanisms;   

Others  :  https://smartech.gatech.edu/bitstream/1853/5667/1/manning_jh.pdf

美国|英语

来源: SMARTech Repository

【 摘 要 】

Several workers have reduced acidic polysaccharides for structural studies,for sorption studies, and for studies on chemical reactivity. All these investigatorshave used reduction procedures which have not been extensively studied and do not completely reduce the acidic groups. In addition, it is not known to what extent the other functional groups such as esters and hemiacetal are reduced. The goal of the present study is to obtain a further understanding of the reduction with both a Lewis acid, diborane, and a Lewis base, lithiumborohydride, by comparison of the percent reduction of the functional groupson an acidic polysaccharide. Alginic acid from the stipes of the brown algae Laminaria hyperborea was selected as the acidic polysaccharide for study.