01651nam a2200217Ia 4500 IA_The main objective of this work was the isolation of an amylolytic strain Bacillus subtilis to hydrolyze starch chains and the subsequent production of bioethanol, by employing two-stage splitting: liquefaction and saccharification. The conversión starch to glucose is studied through the a-amylase and amyloglucosidase enzyme (AMG) produced by isolates (C1 and C3) of the microorganism of interest: Bacillus subtilis, grown in different carbon sources (soluble starch, cornstarch commercial and GPF) and subsequent fermentation to ethanol by the yeast Saccharomyces cerevisiae. The differences among tratments were evaluated by an ANOVA. The most significant results are after the sacchirifation stage. The enzyme with better characteristics spliting was produced in soluble starch (A3) with the C3 strain and this is definitely the strain with most due results, get an average of 315 ug splitting glucose /mL substrate, well above other treatments. OBTENCION DE UNA CEPA AMILOLiTICA DE BACILLUS SUBT 220117s xx 000 0 und d 185861 Disponible en PDF Bacillus subtilis 9297 Bioetanol 156231 Bioethanol 156232 Musa paradisiaca Cepas 160448 Musa paradisiaca Strains 160449 Esparza Torres, Félix, asesor 163757 Gómez Cruz, Adalberto, dir. 148224 Verduzco Ríos, Carlos, asesor 163758 TESIS V35 2015 185861 185861