Multi-scale structural and chemical analysis of sugarcane bagasse in the process of sequential acid–base pretreatment and ethanol production by Scheffersomyces shehatae and Saccharomyces cerevisiae

Table 2 Kinetic parameters for ethanol production from detoxified sulfuric acid hydrolysate after detoxification and enzymatic hydrolysates by Scheffersomyces shehatae UFMG HM 52.2 and Saccharomyces cerevisiae 174, respectively

^aFermentation of hemicellulose hydrolysate by S. shehatae showed maximum ethanol production (9.11 g/l) after 48 hours, thus ethanol productivity was calculated taking 48 hours into consideration. After 48 hours, sugar consumption was 100%. Biomass productivity was also calculated taking 48 hours into consideration. ^bFermentation of enzymatic hydrolysate by S. cerevisiae showed maximum ethanol production (8.13 g/l) after 72 hours, thus ethanol productivity was calculated taking 72 hours into consideration. After 48 hours, sugar consumption was 100%. Biomass productivity was also calculated taking 72 hours into consideration as it was continuously increasing until 72 hours of incubation.