A obtenção da levedura seca através do método Spray-Dryer

Abstract

The search for the production of a fuel that is less aggressive to the environment has pointed to ethanol as the most favorable product, as it is a source of renewable energy. The high production of this biofuel demands a high efficiency of the fermentation processes of the sugar-energy industries, which consequently tend to increase the propagation of yeast cells in fermentation. However, for a long time, the residue of dead yeast and even the surplus of living cells were not reused because they did not know of any viable and cost-effective purpose. Through a long period of studies, the high protein content present in the cells was proven and, with that, the interest in drying yeast for commercialization as a source of protein took on great proportions, as the industry recognized the potential of leveraging its recipe by reusing yeasts. thus creating a new product. Thus, this work sought to report through a bibliographical study the history of yeast as well as the products derived from its use. In addition, through field research, we sought to learn about the application of the Spray-Dryer method in the production of dry yeast and also to carry out physical-chemical analyzes that are essential to guarantee the excellent quality of the product.