Open AccessRenewable Sources and their Applications in Biotechnological Processes
Author(s) -
Maria do Socorro Mascarenhas Santos,
Margareth Batistote
Publication year - 2020
Publication title -
fronteiras : journal of social, technological and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.159
H-Index - 5
ISSN - 2238-8869
DOI - 10.21664/2238-8869.2020v9i2.p155-170
Subject(s) - fermentation , biofuel , biomass (ecology) , yeast , food science , ethanol fuel , yield (engineering) , sugar , chemistry , glycerol , sweet sorghum , pulp and paper industry , ethanol , lignocellulosic biomass , bioenergy , microbiology and biotechnology , biology , sorghum , agronomy , biochemistry , materials science , metallurgy , engineering
Brazil has edaphoclimatic conditions to produce a diversity of crops with energetic potential. Thus, the study aims to correlate the technological parameters of biomasses suitable for fermentation, quantify metabolites produced by yeast FT-858, as well as assess the yield and fermentative efficiency for bioethanol production. It was performed studies of technological qualities of the biomasses and fermentative capacity test. For metabolites production, the yeast FT-858 was pre-grown in liquid medium (YPD 2%), recovered and inoculated in the substrates, and aliquots were collected for analysis of ethanol concentration by gas chromatography and glycerol accumulation by enzymatic kit of triglycerides. The yield and fermentative efficiency were assessed by consumption of sugar using DNS method, and ethanol density using digital densimeter. According to the results, the yeast presented better performance in saccharine sorghum, which also presented more expressive values of fermentative efficiency and yield. Saccharine sorghum has great bioenergetic potential and can be used as complement to sugarcane to increase ethanol production.