RT info:eu-repo/semantics/article
T1 Recovering rhamnogalacturonan-I pectin from sugar beet pulp using a sequential ultrasound and microwave-assisted extraction: Study on extraction optimization and membrane purification
A1 Amo Mateos, Esther Del
A1 Cáceres, Berta
A1 Coca, Mónica
A1 García-Cubero, Mª Teresa
A1 Lucas, Susana
K1 Pectooligosaccharides
K1 Box-Behnken design
K1 Green extraction
K1 ultrafiltration
K1 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.
PB Elsevier
YR 2024
FD 2024
LK https://uvadoc.uva.es/handle/10324/66708
UL https://uvadoc.uva.es/handle/10324/66708
LA eng
NO Bioresource Technology 394 (2024) 130263
NO Producción Científica
DS UVaDOC
RD 22-dic-2024