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Biochemical evaluation, molecular characterization and identification of novel yeast strains isolated from Brazilian savannah fruits, chicken litter and a sugar and alcohol mill with biotechnological potential for biofuel and food industries

2018; Elsevier BV; Volume: 16; Linguagem: Inglês

10.1016/j.bcab.2018.09.006

1878-8181

Janina Zanoni Camargo, Valkirea Matos Nascimento, Isadora Stefanello, Cinthia Aparecida de Andrade Silva, Fabiano Avelino Gonçalves, Igor Chiarelli Perdomo, Danielle Marques Vilela, Simone Simionatto, Rodrigo Matheus Pereira, Marcelo Fossa da Paz, Rodrigo Simões Ribeiro Leite, Jane Mary Lafayette Neves Gelinski, Gustavo Graciano Fonseca,

Biofuel production and bioconversion

The aim of this work was to isolate and investigate different yeast strains obtained in the Brazilian Midwest Region. The alcohol fermenting industrial yeast Saccharomyces cerevisiae CAT-1 and another 3 strains previously isolated from a sugar and alcohol mill were also investigated. In this sense, 45 strains were isolated from fruits and chicken litter. They were evaluated through biochemical and molecular analyzes. Then, it was proceded the enzymatic evaluation and the molecular identification of 13 potential strains, selected due to the fermentation capacity of the substrates glucose, fructose and sucrose. One isolate was distinguished by its short time of fermentation (Candida glabrata Recol 43) and another 3 by their high activity of pyruvate dehydrogenase (Candida glabrata Recol 41, Candida parapsilosis Recol 29 and Meyerozyma guilliermondii Recol 9). The complete characterization performed here helped to identify novel yeasts with potential for biotechnological applications in biofuel and food industries.