Kinetic studies on acid catalysed hydrolysis of starch

被引：0
作者：
Bej, Barnali [1 ]
Basu, R. K. [1 ]
Ash, S. N. [1 ]
机构：
[1] Univ Calcutta, Dept Chem Engn, Kolkata 700009, W Bengal, India
来源：
JOURNAL OF SCIENTIFIC & INDUSTRIAL RESEARCH | 2008年 / 67卷 / 04期
关键词：
acid hydrolysis; batch reactor; kinetic studies; starch; wheat flour;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Acid hydrolysis of wheat flour (particle size, 4 mu m) was carried out in a batch reactor between 75-95 degrees C at varying acid concentrations (pH 2-5). Maximum (42%) conversion of starch to reducing sugar was obtained at 95 degrees C and pH 3. Reaction follows First-order rate equation with respect to starch concentration and dependence of reaction rate constant k on pH is incorporated. Activation energy (Delta E) and frequency factor (A) of reaction were 7806 R and 6.583 x 10(6) [1/f(pH)] respectively. Time dependent conversion was observed with variation of temperature, pH and initial starch concentration within relative error of 19%.
引用
收藏
页码：295 / 298
页数：4
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