RT info:eu-repo/semantics/article
T1 Enhancement of industrial pectin production from sugar beet pulp by the integration of surfactants in ultrasound-assisted extraction followed by diafiltration/ultrafiltration
A1 Fernández Delgado, Marina
A1 Amo Mateos, Esther del
A1 Coca Sanz, Mónica
A1 López Linares, Juan Carlos
A1 García Cubero, María Teresa
A1 Lucas Yagüe, Susana
K1 Ultrasound-assisted extraction
K1 Sugar beet pulp
K1 Pectin
K1 Surfactant
K1 Ultrafiltration
K1 Diafiltration
K1 23 Química
K1 3308 Ingeniería y Tecnología del Medio Ambiente
AB To recover industrial pectin from sugar beet pulp (SBP), a combined surfactant and ultrasound-assisted extrac-tion, followed by a concentration with ultrafiltration/diafiltration membranes is proposed. First, the operationconditions of the extraction were optimized for synthetic (Tween80, PEG4000) and natural (Saponin) surfac-tants. Tween 80 and Saponin provided maximum galacturonic acid (GalA) concentrations (5.5 and 5.8 g/L,respectively) under the best extraction conditions (4 gsurfactant/L, pH = 1, amplitude = 90%, and time = 90 min).The extracted liquid was purified and concentrated through membranes. The final retentate maintained 73% ofthe initial GalA and eliminated a high percentage of oligosaccharides. Finally, the pectin was precipitated withethanol, and the precipitate solid contained 57 g GalA/100 g GalA of SBP with a high degree of esterification (DE= 81%) and MW (930 kDa). The pectin yield for the global process was 24.6%. The ultrasound-assisted extractionwith surfactants followed by diafiltration/ultrafiltration could become a promising process for the chemicalindustry, able to provide pectin-enriched products of commercial interest from sugar beet pulp.
PB Elsevier
SN 0926-6690
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/58518
UL https://uvadoc.uva.es/handle/10324/58518
LA eng
NO Industrial Crops and Products, 2023, vol. 194, p. 116304.
NO Producción Científica
DS UVaDOC
RD 07-ago-2024