Isolation and characterization of cellulose from date palm tree spathe sheath

Tedjani, Chouaib Fethiza; Mya, Omar Ben; Rebiai, Abdelkrim

doi:10.1016/j.scp.2020.100307

Cited by 16 publications

(5 citation statements)

References 27 publications

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“…They were also observed in the degradation events in the thermogravimetric analysis, since, for the sample for cellulose, the presence of lignin was not identified. When comparing them with data from similar studies, we observed a similar behavior for cellulose extracted from the curacao fiber, pineapple leaf and date seeds ( Corrêa, Teixeira, Marconcini, Pessan, & Mattoso, 2009;Ana Carolina Corrêa, de Teixeira, Pessan, & Mattoso, 2010;Fethiza Tedjani, Ben Mya, & Rebiai, 2020;R. M. dos Santos et al, 2013).…”

Section: X-ray Diffraction (Xrd)supporting

confidence: 71%

Sementes de açaí (Euterpe precatoria Mart.) como uma nova fonte alternativa de celulose: Extração e caracterização

Barros¹,

Oliveira²,

Pessoa³

et al. 2021

RSD

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O açaí (Euterpe precatoria Mart.) é uma planta amplamente cultivada na região norte do Brasil. Seus frutos vêm ganhando destaque mundial devido aos inúmeros benefícios para a saúde humana. Consequentemente, a produção de celulose aumentou consideravelmente nos últimos anos, gerando uma quantidade significativa de resíduos (principalmente sementes). Como esses resíduos não têm uma destinação adequada, eles são descartados no meio ambiente ou incinerados, causando inúmeros impactos ambientais. Com o objetivo de apresentar alternativas de aplicação desses resíduos, este trabalho teve como objetivo avaliar o conteúdo lignocelulósico das sementes de açaí - extratos, cinzas, lignina, celulose (α-celulose e hemicelulose) - além de extrair e caracterizar a celulose obtida desse abundante resíduo. As sementes e a celulose extraída foram caracterizadas por diversas técnicas: fluorescência de raios X (XRF), difração de raios X (XRD), refletância total atenuada com espectroscopia de infravermelho por transformada de Fourier (ATR / FTIR) e termogravimetria (TGA). Neste estudo, foi confirmado o alto potencial do uso da semente de açaí como fonte alternativa de celulose, uma vez que apresenta 45,5% desse polímero e todas as técnicas de caracterização mostram a pureza da celulose extraída (tipo I).

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Section: X-ray Diffraction (Xrd)supporting

confidence: 71%

Sementes de açaí (Euterpe precatoria Mart.) como uma nova fonte alternativa de celulose: Extração e caracterização

Barros¹,

Oliveira²,

Pessoa³

et al. 2021

RSD

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“…Figure 5 a presents the XRD patterns of the cotton fibers before and after functionalization. Amorphous cellulose phase and two monoclinic crystals from the cellulose polymorphism are identified [ 59 – 62 ]: cellulose I β (x-ray diffraction signals at 2θ = 14.7° (1 0), 16.5° (110), 22.5° (200), and 34.5° (004)) and cellulose II (x-ray diffraction signals at 2θ = 12.4° (1 0), 20.2° (110), and 38.3° (301)). Other polymorphic forms of cellulose can be found in the cotton fibers, such as cellulose Iα, III I , III II , IV I , and IV II that can be interconverted by chemical routes [ 63 ].…”

Section: Resultsmentioning

confidence: 99%

Bactericidal Properties of Natural Fibers Hybrid Functionalized with ZnO/Cu2+ and ZnO/Cu0

et al. 2023

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Multifunctional natural fibers with antimicrobial properties have been applied as a viable strategy to prevent microorganism contamination and proliferation on the surface of clothes and personal protection equipment marketed and used by health professionals, patients, and the general population. They present intrinsic antimicrobial capacity, providing effective protection preventing the transmission and contagion of diseases caused by pathogenic microorganisms. Herein, we successfully functionalized cotton fibers with ZnO/Cu 2+ and ZnO/Cu 0 hybrid systems via a hydrothermal routine. Rietveld refinement from X-ray Diffractometry (XRD) data and Fourier-Transform Raman Spectroscopy (FT-Raman) indicate alterations on the cellulose crystallinity index in the cotton fibers after functionalization, mainly on the proportion of cellulose I β polymorph crystal. Scanning Electron Microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) indicate adequate ZnO nanoparticles fixation and in-situ reduction of copper ions. Antimicrobial tests confirm that the multifunctional fibers present bactericidal activity against Gram-negative and Gram-positive bacteria under electromagnetic irradiation (440–480 nm). Self-disinfection capability and UV blocking properties of wipes with fibers after ZnO/Cu 2+ and ZnO/Cu 0 functionalization were improved. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s12221-023-00030-0.

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“…There were a few studies reported on the extraction of cellulose from date tree, especially from date palm tree spathe sheath and date palm seeds. There were also a few works reported on the preparation of cellulose from the leaflets of cellulose, however, with repeated chemical treatment . Alhamza et al also reported on the preparation of cellulose nanofibers from date palm tree leaflets by the ball milling technique.…”

Section: Introductionmentioning

confidence: 99%

“…There were also a few works reported on the preparation of cellulose from the leaflets of cellulose, however, with repeated chemical treatment. 43 Alhamza et al 44 also reported on the preparation of cellulose nanofibers from date palm tree leaflets by the ball milling technique. Despite the fact that the ball milling technique is a cost-effective technology with vast potential and is applicable for preparing cellulose nanofibers or nanocrystals, it has got some drawbacks.…”

Section: Introductionmentioning

confidence: 99%

Effect of Leaf Powdering Technique on the Characteristics of Date Palm-Derived Cellulose

Al-Awa,

Sangor,

Babili

et al. 2023

ACS Omega

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The date palm tree (Phoenix dactylifera L.) is the oldest cultivated tree and is very commonly seen in the Arab countries. In recent times, researchers are working on the conversion of the plant-based biowaste into value-added products.Cellulose is identified as one of the best options to be synthesized from plant-based materials due to its immense application possibilities. It is a natural hydrophilic polymer consisting of linear chains of 1,4-β-D-anhydroglucose units, and the most used method for cellulose extraction is acidic hydrolysis. However, in this study, a very sustainable, ecofriendly, and simple process of isolating cellulose from date palm leaves is discussed. In this study, the best mechanical approach (ball milling, grinding, or its combination) for changing the leaves into powder form, as well as the sustainable and simple chemical extraction of cellulose from those date palm leaves, is analyzed. SEM analyses confirmed that the mechanical treatment process affected the appearance of the cellulose formed. Raman spectrum confirmed the difference in stretching vibrations among the cellulose obtained. From the results obtained, it was noted that cellulose derived utilizing the grinding technique and subsequent chemical treatment was considered as the finest cellulose prepared with respect to its properties and structure, and the greatest yield obtained for Cellulose 2 was 42%. As a future scope, this cellulose developed can be used to produce advanced materials like nanocellulose.

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Isolation and characterization of cellulose from date palm tree spathe sheath

Cited by 16 publications

References 27 publications

Sementes de açaí (Euterpe precatoria Mart.) como uma nova fonte alternativa de celulose: Extração e caracterização

Sementes de açaí (Euterpe precatoria Mart.) como uma nova fonte alternativa de celulose: Extração e caracterização

Bactericidal Properties of Natural Fibers Hybrid Functionalized with ZnO/Cu2+ and ZnO/Cu0

Effect of Leaf Powdering Technique on the Characteristics of Date Palm-Derived Cellulose

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