Optimization of reaction conditions for potato starch sulphate and its chemical and structural characterization

被引：13

作者：

Cui, Dapeng ^{[1
]}

Liu, Mingzhu ^{[1
]}

Zhang, Bing ^{[1
,2
]}

Gong, Honghong ^{[1
]}

Bi, Yinghui ^{[1
]}

机构：

[1] Lanzhou Univ, Dept Chem, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China

[2] Longdong Univ, Coll Chem & Chem Engn, Qingyang, Peoples R China

来源：

STARCH-STARKE | 2011年 / 63卷 / 06期

关键词：

Degree of substitution; Optimal conditions; Physical and chemical properties; Potato starch sulphate; Sulphation; IN-VITRO; LACQUER POLYSACCHARIDE; ANTIOXIDANT ACTIVITY; SUPERABSORBENT;

D O I：

10.1002/star.201000033

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Potato starch sulphate (PSS) was synthesized by the reaction between potato starch and sulphuric acid in ethanol. In order to obtain the products with high degree of substitution (DS), the reaction conditions which could influence the DS were optimized, including m(St)/VH2SO4, V-EtOH/VH2SO4, water content in the reaction medium, the reaction temperature and reaction time in sulphation. In this process, the DS of each PSS sample was determined by barium sulphate-glutin nephelometery method. By investigating the relationship between these conditions and DS, the optimal conditions could be obtained with the maximum DS. Besides, the physical properties and chemical structure of PSS were studied, containing solubility, swelling power, FTIR spectra, XRD patterns, gelatinization temperatures and enthalpy measurements.

引用

页码：354 / 363

页数：10

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