RT info:eu-repo/semantics/article
T1 Studies of degradation of pectin derived compounds from onion skins in subcritical water
A1 Benito Román, Oscar
A1 Sanz Díez, Mª Teresa
A1 Beltrán Calvo, Sagrario
K1 Galacturonic acid
K1 Subcritical water
K1 Hydrolysis
K1 Kinetics
K1 Biomass
K1 Ingeniería química
K1 Chemical engineering
AB The degradation kinetics of Galacturonic Acid (GalA) in subcritical water (SubW) was studied in a batch reactor. GalA degradation was faster than other monosaccharides and could be described by the first order kinetic model. The initial concentration of GalA did not affect the degradation kinetics, but the heating rate and the reaction temperature played an important role in the degradation of GalA. The energy of activation was calculated according to the Arrhenius equation and resulted to be 97 ± 3 kJ/mol. Degradation products formation, mainly formic acid and furfural, was faster with temperature until a maximum concentration was reached (0.2 g C in formic acid/g C in initial GalA at 155°C and 45 min, severity factor 3.2), followed by a fast degradation whereas a plateau concentration was reached in the case of furfural (around 0.16 g C /g C in initial GalA at 185 °C after 45 min).
PB Elsevier
SN 0896-8446
YR 2024
FD 2024-04
LK http://hdl.handle.net/10259/9294
UL http://hdl.handle.net/10259/9294
LA eng
NO This work was supported by the Agencia Estatal de Investigación (AEI) though projects PID2020-116716RJ-I00/AEI/10.13039/501100011033, PID2019-104950RB-I00/AEI/10.13039/501100011033; by AEI, MICINN, UE Next GenerationEU (Plan de Recuperación, Transformación y Resiliencia) [grant number TED2021-129311B-I00] and by the Junta de Castilla y León (JCyL) and the European Regional Development Fund (ERDF) through project BU050P20. Benito-Román post-doctoral contract was funded by AEI through project PID2020-116716RJ-I00.
DS Repositorio Institucional de la Universidad de Burgos
RD 21-nov-2024