Made available in DSpace on 2019-10-06T16:52:25Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-12-01; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); The fermentation process is widely used in the industry for bioethanol production. Even though it is widely used, microbial contamination is unpredictable and difficult to control. The problem of reduced productivity is directly linke...