Analysis of Biodegradation of Bioplastics Made of Cassava Starch

Journal of Mechanical Engineering Science and Technology

Heru Suryanto¹  Nanang Eko Wahyuningtiyas¹ 

[1]Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Malang

关键词: Bioplastics;    Cassava starch;    Glycerol;    Degradation;    Microorganism;   

DOI  :  10.17977/um016v1i12017p024

学科分类：机械工程学

来源: Universitas Negeri Malang

【 摘 要 】

Environmental pollution due to plastic waste taking too long to decompose has become a global problem. There have been numerous solutions proposed, one of which is the use of bioplastics. The use of cassava starch as the main ingredient in the manufacture of bioplastics shows great potential, since Indonesia has a diverse range of starch-producing plants. The aim of the present study is to analyse the effect of glycerol on microbial degradation. This experimental research investigated the use of cassava flour mixed with glycerol plasticizer at various concentrations (0, 2, 2.5, 3%) in the synthesis of bioplastics. The aspects studied were biodegradability, moisture absorption (using ASTM D570), shelf life, and morphological properties (using a camera equipped with a macro lens) and SEM. This study revealed that complete degradation could be achieved on the 9th day. The addition of a large concentration of glycerol would accelerate the microbial degradation process, increase moisture, and extend the shelf life of bioplastics in a dry place.

【 授权许可】

CC BY-SA