Open AccessProduction of Succinic Acid: Effects of C:N Ratio
Author(s) -
Tatiane Araujo Gonzales,
Lucielen Oliveira Santos,
Beatriz Torsani Úbeda,
Ranulfo Monte Alegre,
Rosana Goldbeck
Publication year - 2019
Publication title -
journal of applied biotechnology
Language(s) - English
Resource type - Journals
ISSN - 2327-0640
DOI - 10.5296/jab.v7i2.14867
Subject(s) - succinic acid , xylose , substrate (aquarium) , fermentation , sucrose , yield (engineering) , chemistry , nitrogen , carbon fibers , biomass (ecology) , nuclear chemistry , food science , organic chemistry , materials science , agronomy , biology , ecology , composite number , metallurgy , composite material
In this work, the effects of different carbon:nitrogen (C:N) ratios, carbon source and initial carbon concentration, in liquid medium used for submerged fermentation, on biomass growth, succinic acid production and yield of product in substrate (YP/S) were studied. It was used three carbon sources as substrate such as glucose, xylose and sucrose and the C:N ratios studied were in the range of 2.5-35. The succinic acid production was best at a C:N ratio of 12.5:1, as much for the succinic acid production as for the yield of product in relation to the substrate (YP/S). For the biomass growth the C:N ratios of 2.5:1, 5:1 and 10:1 had only presented significant difference with regards to the too much assays. The substrate that presents the best results was the glucose with succinic acid concentrations up to 7.5 g.L-1.