RT dataset
T1 Recovering rhamnogalacturonan-I pectin from sugar beet pulp using a sequential ultrasound and microwave-assisted extraction: Study on extraction optimization and membrane purification (dataset)
A1 Amo Mateos, Esther Del
A1 Cáceres, Berta
A1 Coca Sanz, Mónica
A1 García Cubero, María Teresa
A1 Lucas Yagüe, Susana
A2 Universidad de ValladolidInstituto de Procesos Sostenibles
K1 Pectooligosaccharides;  Box-Behnken design;  Green extraction;  ultrafiltration; diafiltration
AB This research focuses on the integrated recovery of rhamnogalacturonan-I (RG-I) pectin from sugar beet pulp (SBP). First, the extraction of RG-I pectin through sequential ultrasound-assisted extraction (UAE) and microwave-assisted extraction (MAE) was assessed. Optimization using a response surface methodology identified the optimal conditions as initial pH 4, 10 minutes of UAE, and 157 °C for MAE, achieving a 66.0 % recovery of pectooligosaccharides (POS). Additionally, purification through continuous diafiltration and concentration via ultrafiltration of the POS using membranes with different molecular weight cut-offs (MWCO) was explored. In contrast to previous research using discontinuous diafiltration, the use of continuous diafiltration allowed a decrease in the extract viscosity and obtained higher yields using a higher MWCO membrane. The refined RG-I pectin solids exhibited a high global yield (39 – 40 g pectin/100 g SBP), and high-methoxyl characteristics, as well as purity levels (70 – 80 %) similar to commercial prebiotics.
YR 2024
FD 2024
LK https://uvadoc.uva.es/handle/10324/70814
UL https://uvadoc.uva.es/handle/10324/70814
LA eng
NO Bioresource Technology, 2024, 394, 130263.
NO Instituto de Procesos Sostenibles
DS UVaDOC
RD 03-abr-2025