Isothermal kinetic study of corn and its derivatives

被引:13
作者
Conceiçao, MM
Melo, AML
Narain, N
Santos, IMG
Souza, AG
机构
[1] Univ Fed Paraiba, CCEN, Dept Quim, BR-58059900 Joao Pessoa, Paraiba, Brazil
[2] Refinacoes Milho Brasil Ltda, Campina Grande, Paraiba, Brazil
[3] Univ Fed Paraiba, CT, Dept Tecnol Quim & Alimentos, BR-58059900 Joao Pessoa, Paraiba, Brazil
来源
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2002年 / 67卷 / 02期
关键词
corn; isotherms; kinetics;
D O I
10.1023/A:1013927216404
中图分类号
O414.1 [热力学];
学科分类号
摘要
The thermogravimetric procedures applied to quality control of foods attain the global analysis of quality of the product, through the determination of quality parameters and the thermal stability of products. The kinetic parameters such as order of reaction, apparent activation energy, pre-exponential factors and the thermal decomposition rate constant were determined for the samples of corn and its derivatives by applying isothermal thermogravimetry, utilizing the Arrhenius law. This method presented excellent results as verified with the coherence and data adjustment. The rate constant values showed the expected performance from the chemical point of view.
引用
收藏
页码:373 / 379
页数:7
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