Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Evaluation of alternative sugar beet pulp refining strategies for efficient pectin extraction and poly(3-hydroxybutyrate) production
Δημιουργός/Συγγραφέας:	Sarafidou, Mirva Vittou, Olga Psaki, Olga Filippi, Katiana Tsouko, Erminta Vardaxi, Antiopi [EL] Πίσπας, Στέργιος[EN] Pispas, Stergios Koutinas, Apostolis Stylianou, Eleni
Ημερομηνία:	2024
Γλώσσα:	Αγγλικά
ISSN:	1369703X
DOI:	10.1016/j.bej.2024.109368
Περίληψη:	Alternative sugar beet pulp (SBP) refining strategies were evaluated to identify the most efficient process combining pectin extraction and poly(3-hydroxybutyrate) (PHB) production. The chosen process involved the consecutive aqueous separation of free sugars and extraction of a pectin-rich fraction before hydrothermal treatment and enzymatic hydrolysis of remaining solids. The optimal refining strategy resulted in the highest yield of pectin-rich extract (28% w/w) with 67% galacturonic acid content, 26% emulsifying stability and 0.15 m2/g activity index, with promising emulsifying application potential. Optimal enzymatic hydrolysis of remaining pectin-free solids led to 80.7% (w/w) overall glucan conversion yield, while the overall hemicellulose hydrolysis yield was 4.8% as most hemicellulose was contained in the pectin-rich extract. Bioreactor cultivation by Paraburkholderia sacchari with SBP derived sugars led to 62.2 g/L PHB with 53.1% (w/w) PHB content, 0.27 g/g yield and 1.7 g/(L·h) productivity, demonstrating a high efficiency in PHB production. In the integrated biorefinery scenario, 1 kg SBP could be converted into 252.9 g pectin-rich extract and 110.7 g PHB. The produced PHB could be employed for the formulation of bio-based and biodegradable food packaging, which when combined with pectin applications creates the opportunity to restructure the conventional sugar industry into a sustainable biorefinery.
Τίτλος πηγής δημοσίευσης:	Biochemical Engineering Journal
Τόμος/Κεφάλαιο:	208
Θεματική Κατηγορία:	[EL] Βιοτεχνολογία[EN] Biotechnology [EL] Βιοχημεία[EN] Biochemistry [EL] Χημική μηχανική[EN] Chemical engineering
Λέξεις-Κλειδιά:	biorefinery development Sugar Beet Pulp (SBP) pectin-rich extract poly(3-hydroxybutyrate) paraburkholderia sacchari
EU Grant:	Valorization of sugar-beet cultivation residues and by-products of sugar manufacturing process for the production of bio-based and biocomposite biodegradable packaging materials, Beet2Bioref
EU Grant identifier:	MIS 5069983
Κάτοχος πνευματικών δικαιωμάτων:	© 2024 Elsevier B.V.
Όροι και προϋποθέσεις δικαιωμάτων:	All rights are reserved, including those for text and data mining, AI training, and similar technologies
Ηλεκτρονική διεύθυνση στον εκδότη (link):	https://doi.org/10.1016/j.bej.2024.109368
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο