TY - JOUR
T1 - Cellulosic materials from pea (Pisum Sativum) and broad beans (Vicia Faba) pods agro-industrial residues
AU - Kassab, Zineb
AU - Abdellaoui, Youness
AU - Salim, Mohamed Hamid
AU - El Achaby, Mounir
N1 - Funding Information:
The authors acknowledge the financial assistance of the Materials Science and Nanoengineering Department at Mohammed VI Polytechnic University.
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/12/1
Y1 - 2020/12/1
N2 - 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.
AB - 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.
KW - Agro-industrial residue
KW - Broad beans pods
KW - Cellulose microfibers
KW - Cellulose nanocrystals
KW - Pea pods
UR - http://www.scopus.com/inward/record.url?scp=85089906272&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2020.128539
DO - 10.1016/j.matlet.2020.128539
M3 - Article
AN - SCOPUS:85089906272
SN - 0167-577X
VL - 280
JO - Materials Letters
JF - Materials Letters
M1 - 128539
ER -