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EUBCE 2024 - Esther DEL AMO MATEOS - Rhamnogalacturonan-I Pectin Recovery from Sugar Beet Pulp Through Greener Technologies

Rhamnogalacturonan-I Pectin Recovery from Sugar Beet Pulp Through Greener Technologies

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Processes for bio-based chemicals and materials

Biochemical production

Rhamnogalacturonan-I Pectin Recovery from Sugar Beet Pulp Through Greener Technologies

Short Introductive summary

Sugar beet pulp (SBP), an abundant lignocellulosic byproduct from the sugar industry, holds the potential for producing high-value bioproducts like pectin. Particularly, the rhamnogalacturonan-I (RG-I) region within pectin is of interest for pectooligosaccharides (POS) extraction. Traditional methods employing acidic hot solutions for pectin extraction led to RG-I degradation. This study explored POS extraction from SBP using innovative techniques such as microwave-assisted extraction (MAE) and ultrasound-assisted extraction (UAE), followed by purification through membrane processes. Hydrothermal MAE was the most effective technology, recovering 53.6% of POS. A cascade ultrafiltration (UF) process yielded 63.8% POS recovery in the retentate, reaching a concentration of 71.12 g POS/L. Alternatively, continuous diafiltration (DF) followed by UF (MWCO: 5 kDa and 100 kDa, respectively) concentrated the solution from 31.9 g POS/L to 77.8 g POS/L. This environmentally friendly process offers a POS-rich stream with potential prebiotic properties.

Presenter

Moderator portrait

Esther DEL AMO MATEOS

University of Valladolid, SPAIN

Presenter's biography

PhD student in Industrial Engineering at the University of Valladolid (Spain) focused on the production of pectin with potential prebiotic properties using emerging extraction and purification technologies.

Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited


Co-authors:

E. Del Amo Mateos, University of Valladolid, SPAIN
M. Coca, University of Valladolid, SPAIN
S. Lucas, University of Valladolid, SPAIN

Session reference: 6BO.5.4