Title:
Rhamnogalacturonan-I Pectin Recovery from Sugar Beet Pulp through Greener Technologies
Author(s):
Del Amo-Mateos, E., Coca, M., Lucas, S.
Document(s):
Paper
Slide presentation
Abstract:
Sugar beet pulp (SBP) is a byproduct obtained in the sugar industry that can be a source of high-value-added bioproducts, such as pectin. The rhamnogalacturonan-I (RG-I) region of pectin has attracted research interest as a potential source of pectooligosaccharides (POS). Conventional pectin extraction is ineffective for RG-I recovery due to the degradation caused by the acidic hot solutions applied over several hours. This study focuses on extracting POS from SBP using emerging technologies, including microwave-assisted extraction (MAE), ultrasound-assisted extraction (UAE), sequential UAE and MAE, and purification through a membrane process. Results indicated that MAE was the most suitable technology, recovering 53.6% of POS. The ultrafiltration (UF) cascade configuration revealed that 63.8% of POS were recovered in the retentate using a 100 kDa molecular weight cut-off (MWCO) membrane. The results of the diafiltration (DF) followed by UF revealed that the global POS recovery yield increased from 52.6% to 88.6% when using 3 kDa MWCO membrane instead of 5 and 100 kDa. This study identified the potential of a greener process for obtaining a POS-rich stream with potential prebiotic properties.
Keywords:
pectin, microwave-assisted extraction, ultrasound-assisted extraction, diafiltration, ultrafiltration
Topic:
Biomass Conversion to Bio-based Products and Chemicals
Subtopic:
Processes for bio-based chemicals and materials
Event:
32nd European Biomass Conference and Exhibition
Session:
6BO.5.4
Pages:
793 - 795
ISBN:
978-88-89407-24-0
Paper DOI:
10.5071/32ndEUBCE2024-6BO.5.4
Price:
FREE
