RT info:eu-repo/semantics/article
T1 Subcritical Water Treatment for Valorization of the Red Algae Residue after Agar Extraction: Scale-Up from Laboratory to Pilot Plant
A1 Trigueros Andrés, Ester
A1 Ramos Rodríguez, Cipriano
A1 Alonso Riaño, Patricia
A1 Beltrán Calvo, Sagrario
A1 Sanz Díez, Mª Teresa
K1 Alimentos
K1 Food
K1 Ingeniería química
K1 Chemical engineering
AB The feasibility of industrial subcritical water treatment on Gelidium sesquipedale residue through scaling up from the lab to pilot system in discontinuous mode (geometric scale-up factor = 50), at 130 and 175 °C (5% biomass), was investigated. The maximum volumes of the reactors were 500 mL at the lab-scale and 5 L at the pilot-scale system. At 175 °C, faster extraction/hydrolysis was observed for the pilot plant, but maximum yields were similar: 71.4 and 78.6% for galactans, 9.8 and 10.4% for glucans, and 92.7 and 86.1% for arabinans in pilot scale and lab scale, respectively, while the yields for proteins accounted nearly 40%. The highest yields for amino acids were observed for the smallest ones, while lower yields were determined for polar amino acids. The total phenolic content and color intensity progressively increased along time at lab scale, while a plateau was reached at the pilot level. Lower extraction yields but reproducible results were obtained at 130 °C. Finally, the pilot scale was essayed at a higher biomass loading (15%), and successful results were obtained, supporting the feasibility of the scaling-up process.
PB ACS Publications
SN 0888-5885
YR 2023
FD 2023-02
LK http://hdl.handle.net/10259/9066
UL http://hdl.handle.net/10259/9066
LA eng
NO This work was supported by the Agencia Estatal de Investigación (Spain) [grant numbers PID2019-104950RB-I00/AEI/10.13039/501100011033, TED2021-129311B-I00, and PDC2022-133443-I00], the Junta de Castilla y León (JCyL), and the European Regional Development Fund (ERDF) [grant number BU050P20]. The predoctoral contracts of E.T. and P.A.-R. were funded by the JCyL and ESF [ORDEN EDU/574/2018 and EDU/556/2019, respectively].
DS Repositorio Institucional de la Universidad de Burgos
RD 19-may-2024