Rheological and thermal characteristics of wheat gluten biopolymers plasticized with glycerol

Quimica nova

Ruiz, Walter Augusto¹  Ferreira, Shana Pires¹  Gaspar-Cunha, António² 

[1] Universidade Federal do Rio Grande, Rio Grande, Brasil;Universidade do Minho, Guimarães, Portugal

关键词: wheat gluten;    glycerol;    bioplastics.;   

DOI  :  10.1590/S0100-40422012000400012

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The objective this work was to obtain bioplastics from mixtures of wheat gluten and glycerol by two different processes and evaluate their respective rheological properties. The mixtures and their respective bioplastics were obtained through direct batch mixing under approximately adiabatic and isothermal conditions. The bioplastics showed high values for the storage (G') and loss (G") moduli, suggesting a stronger protein network formed in both processes. The temperature onset and the percentage of weight loss to be estimated were found to be near in both bioplastics. The bioplastics have demonstrated to be materials of interesting potential of use as biodegradable barrier materials.

【 授权许可】

CC BY