Beneficiation of cactus fruit waste seeds for the production of cellulose nanostructures: Extraction and properties.

Autor: Ait Benhamou A; Materials Science, Energy and Nanoengineering (MSN) Department, Mohammed VI Polytechnic University, Lot 660 - Hay Moulay Rachid, 43150 Ben Guerir, Morocco; Materials Science and Process Optimization Laboratory, Faculty of Science Semlalia, Cadi Ayyad University, 40000 Marrakech, Morocco; Chemical Processes and Applied Materials Laboratory, Polydisciplinary Faculty, Sultan Moulay Slimane University, 23000 Beni-Mellal, Morocco. Electronic address: anass.aitbenhamou@um6p.ma., Kassab Z; Materials Science, Energy and Nanoengineering (MSN) Department, Mohammed VI Polytechnic University, Lot 660 - Hay Moulay Rachid, 43150 Ben Guerir, Morocco. Electronic address: zineb.kassab@um6p.ma., Boussetta A; Chemical Processes and Applied Materials Laboratory, Polydisciplinary Faculty, Sultan Moulay Slimane University, 23000 Beni-Mellal, Morocco., Salim MH; Materials Science, Energy and Nanoengineering (MSN) Department, Mohammed VI Polytechnic University, Lot 660 - Hay Moulay Rachid, 43150 Ben Guerir, Morocco., Ablouh EH; Materials Science, Energy and Nanoengineering (MSN) Department, Mohammed VI Polytechnic University, Lot 660 - Hay Moulay Rachid, 43150 Ben Guerir, Morocco., Nadifiyine M; Materials Science and Process Optimization Laboratory, Faculty of Science Semlalia, Cadi Ayyad University, 40000 Marrakech, Morocco., Qaiss AEK; Composites and Nanocomposites Center (CNC), Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Rue Mohamed El Jazouli, Madinat El Irfane, 10100 Rabat, Morocco., Moubarik A; Chemical Processes and Applied Materials Laboratory, Polydisciplinary Faculty, Sultan Moulay Slimane University, 23000 Beni-Mellal, Morocco., El Achaby M; Materials Science, Energy and Nanoengineering (MSN) Department, Mohammed VI Polytechnic University, Lot 660 - Hay Moulay Rachid, 43150 Ben Guerir, Morocco. Electronic address: mounir.elachaby@um6p.ma.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2022 Apr 01; Vol. 203, pp. 302-311. Date of Electronic Publication: 2022 Jan 30.
DOI: 10.1016/j.ijbiomac.2022.01.163
Abstrakt: Cactus fruit waste seeds (CWS) are a by-product of the cactus fruit processing industry. Until now, CWS are not recoverable in any sector. The valorization of these residues may reduce their volume in the environment and transform them into valuable products. In this work, CWS have been identified for the first time as a sustainable lignocellulosic source. Cellulose microfibers (CMFs) and nanocrystals (CNCs) were successfully produced via alkali and bleaching treatments followed by sulfuric acid hydrolysis. It was found that the extracted CMFs showed an average diameter of 11 μm, crystallinity of 72%, and a yield of 25%. The as-produced CNCs exhibited a needle-like shape with a diameter of 13 ± 3 nm and length of 419 ± 48 nm, giving rise to an aspect ratio of 30.7, with a zeta potential value of - 30 mV and a charge content of sulfate groups of 287.8 mmol·kg -1 . Herein, the obtained cellulosic derivatives with excellent properties from this underutilized waste can draw the attention of researchers towards CWS as a new type of biomass with virtually no hemicellulose, which could be of great interest to isolate and study the effects of how lignin interacts with cellulose.
(Copyright © 2022 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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