Desenvolvimento de embalagem biodegradável a partir de resíduos da indústria de batata e cerveja

Abstract

There has been an increase in the consumption of industrialized products due to the growth of world population, and, therefore, an increase in urban solid waste. According to data from the Ministry of Environment (2012), approximately 1/5 of urban solid waste consists of packaging. In addition, the decomposition time of the plastic in nature is over 400 years. Thus, this work proposes the development of a biodegradable packaging from residues of potato and beer industry. The method chosen has been foam-mat, a quick and inexpensive process. The added residues were trub and bagasse, rich in proteins and fibers, respectively. However, the packaging presented a crumpled appearance. Therefore, the addition of additives such as pectin and glycerol has been necessary. Pectin has the function of maintaining the structure of the packaging, and the glycerol has the function of leaving the packaging a little malleable to not breaking easily. Obtaining a package consisting of these components offers a lower cost, low toxicity, and a biodegradability time of approximately 14 days. Key words: packaging, biodegradable, beer residue, potato residue, foam - mat.