Cellulosic materials from pea (Pisum Sativum) and broad beans (Vicia Faba) pods agro-industrial residues

Zineb Kassab, Youness Abdellaoui, Mohamed Hamid Salim, Mounir El Achaby

    Research output: Contribution to journalArticlepeer-review

    46 Scopus citations

    Abstract

    Agro-industrial activities generate large quantities of lignocellulosic waste; however, their reuse is still rarely practiced. The use of these unexploited residues to develop high added value cellulosic materials is a crucial step towards sustainable development. This work evaluated pea and broad beans pods agro-industrial residue, for the first time, as promising sources of cellulose derivatives. Cellulose microfibers (CMF) and nanocrystals (CNC) were successfully extracted from pea pods (CMFP and CNCP) and broad beans pods (CMFB and CNCB) using chemical treatments (alkaline-extraction, bleaching, and acid hydrolysis). Pure CMFP and CMFB exhibited a diameter of 10.68 ± 1.28 µm and 14.67 ± 2.29 µm, and a crystallinity of 79% and 70%, respectively. While CNCP and CNCB showed a needle shape, a diameter of 5.4 ± 2.3 nm and 6.3 ± 1.8 nm, and a length of 483 ± 74 nm and 529 ± 68 nm, giving rise to an aspect ratio of 89 and 84, respectively. Besides, CNCP and CNCB showed high crystallinity and thermal stability. The extraction of CMF and CNC from pea and broad beans pods has the potential to recover these underused residues and reduce the accumulated waste volume in the environment.

    Original languageBritish English
    Article number128539
    JournalMaterials Letters
    Volume280
    DOIs
    StatePublished - 1 Dec 2020

    Keywords

    • Agro-industrial residue
    • Broad beans pods
    • Cellulose microfibers
    • Cellulose nanocrystals
    • Pea pods

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