Kinetics of oxidation of an arabinogalactan from larch (Larix sibirica L.) in an aqueous medium in the presence of hydrogen peroxide

被引：8

作者：

Borisov, IM

Shirokova, EN

Mudarisova, RK

Muslukhov, RR

Zimin, YS

Medvedeva, SA

Tolstikov, GA

Monakova, YB

机构：

[1] Bashkir State Univ, Ufa 450074, Russia

[2] Russian Acad Sci, Ufa Res Ctr, Inst Organ Chem, Ufa 450054, Russia

来源：

RUSSIAN CHEMICAL BULLETIN | 2004年 / 53卷 / 02期

关键词：

polysaccharides; arabinogalactan; hydrogen peroxide; oxidation process; kinetics; radical mechanism; functionalization;

D O I：

10.1023/B:RUCB.0000030804.76265.60

中图分类号：

O6 [化学];

学科分类号：

0703 [化学];

摘要：

The oxidation of an arabinogalactan in an aqueous medium under the action of hydrogen peroxide and dioxygen is accompanied by accumulation of carbonyl and carboxy groups in the oxidized polysaccharide macromolecules and derived oligomers. The addition of iron sulfate accelerates the radical oxidation of the biopolymer, while the addition of phenol inhibits the oxidation. The influence of the temperature and the initial H2O2 and arabinogalactan concentrations on the kinetics of the initial oxidation stage of the natural polysaccharide was studied.

引用

页码：318 / 324

页数：7

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