Optimization of factors to obtain cassava starch films with improved mechanical properties

6th International Conference on Manufacturing Engineering and Process

工业技术;物理学

Monteiro, Mayra^1 ; Oliveira, Victor^2 ; Santos, Francisco^2 ; Neto, Eduardo Barros^1 ; Silva, Karyn^1 ; Silva, Rayane^1 ; Henrique, Joao^1 ; Chibério, Abimaelle^3

Universidade Federal Do Rio Grande Do Norte, UFRN, Natal

RN, Brazil^1

Universidade Federal Rural Do Semi-arido, UFERSA, Mossoró

RN, Brazil^2

Universidade NOVA de Lisboa, Lisboa, Portugal^3

关键词: Cassava starch films;    Desirability function;    Factorial analysis;    Factorial design;    Individual factors;    Mechanical property improvement;    Regression model;    Statistical tools;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/885/1/012001/pdf
DOI  :  10.1088/1742-6596/885/1/012001

学科分类：工业工程学

来源: IOP

【 摘 要 】

In this study, was investigated the optimization of the factors that significantly influenced the mechanical property improvement of cassava starch films through complete factorial design 23. The factors to be analyzed were cassava starch, glycerol and modified clay contents. A regression model was proposed by the factorial analysis, aiming to estimate the condition of the individual factors investigated in the optimum state of the mechanical properties of the biofilm, using the following statistical tool: desirability function and response surface. The response variable that delimits the improvement of the mechanical property of the biofilm is the tensile strength, such improvement is obtained by maximizing the response variable. The factorial analysis showed that the best combination of factor configurations to reach the best response was found to be: with 5g of cassava starch, 10% of glycerol and 5% of modified clay, both percentages in relation to the dry mass of starch used. In addition, the starch biofilm showing the lowest response contained 2g of cassava starch, 0% of modified clay and 30% of glycerol, and was consequently considered the worst biofilm.