Estudo do teor de amido em colmos de bambu submetidos a tratamentos naturais

Abstract

The use of natural resources has been increasing in recent decades, resulting in significant environmental impacts. As a result, society is seeking alternative materials for the construction industry, and one promising possibility is bamboo, which possesses physical characteristics and stands out as a sustainable and renewable material. However, there is still a lack of normative documents regarding bamboo treatments, which diminishes its credibility in some countries. Nevertheless, these treatments are crucial for increasing its durability and strength. With the purpose of analyzing the use of this material, this study aimed to investigate and analyze natural treatments on bamboo culms through laboratory tests to analyze the existing starch using two methodologies: the extraction method and the application of Lugol's solution. Thus, after conducting treatments involving fire, steam, and immersion, the efficiency of starch extraction was assessed based on the performed analyses. Consequently, it was concluded that the immersion treatment was the most effective, and the Lugol's solution analysis method proved to be the quickest and most practical, yielding more significant results for the study. The starch extraction method resulted in a weight reduction of 21% for the immersion treatment, 20% for the steam treatment, 22% for the fire treatment, while the untreated sample exhibited a weight reduction of 30%.