RT Journal Article
T1 Modelling of the acid hydrolysis of potato (Solanum tuberosum) for fermentative purposes
A1 Vázquez Vázquez, Manuel
A1 Guerra Rodríguez, Esther
A1 Portilla Rivera, Óscar M.
A1 Ramírez de León, José, Alberto
A1 Vázquez Vázquez, Manuel
K1 Potato
K1 Acid hydrolysis
K1 Furfural
K1 5-(hydroxymethyl)-2-furaldehyde
K1 Box-Behnken
AB The hydrolysis of non-commercial potatoes to obtain glucose solutions has a double consequence, the elimination of a waste and the generation of a value-added product. Potato hydrolysates can be used to prepare growth media for fermentative processes. This work deals with the modelling of the acid hydrolysis of potato using sulphuric acid. The effect of temperature, time, acid concentration and liquid/solid ratio were evaluated. Considering the important effect and interactions of the variable involved, a statistical Box-Behnken design was conducted including the cited variables as operational variables and concentrations of glucose, fructose, arabinose, acetic acid, furfural and 5-(hydroxymethyl)-2-furaldehyde (HMF) released as dependent variables. Significant models were obtained. The maximum glucose concentration predicted was 85 kg m−3. The conditions selected as optimal were: Temperature, 120 °C; time, 60 min; acid concentration, 2.4 kg m−3 and liquid/solid ratio, 9.8 g g−1. The acid hydrolysis of dried potatoes gave solutions with 58 kg m−3 of glucose and only 0.47 kg m−3 of HMF. These solutions are adequate for further fermentation process
PB Elsevier
YR 2012
FD 2012-04-21
LK https://hdl.handle.net/10347/43986
UL https://hdl.handle.net/10347/43986
LA eng
NO Esther Guerra-Rodríguez, Oscar M. Portilla-Rivera, José A. Ramírez, Manuel Vázquez, Modelling of the acid hydrolysis of potato (Solanum tuberosum) for fermentative purposes, Biomass and Bioenergy, Volume 42, 2012, Pages 59-68, ISSN 0961-9534, https://doi.org/10.1016/j.biombioe.2012.03.019
NO The authors are grateful to MICINN (Spain) for the financial support of this work (project AGL2006-08250/ALI) and the FEDER founds of the European Union
DS Minerva
RD 28 abr 2026