Extraction and characterization of vascular bundle and fiber strand from date palm rachis as potential bio-reinforcement in composite

Boumediri, Haithem; Bezazi, Abderrezak; Pino, Gilberto García del; Haddad, A.; Scarpa, Fabrizio; Dufresne, Alain

doi:10.1016/j.carbpol.2019.114997

Cited by 95 publications

(42 citation statements)

References 38 publications

(8 reference statements)

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“…The absorption bands at 1,373 and 1,246 cm −1 are attributed to the flexural vibration of the aromatic ring group C-H (Bezazi et al, 2014) in hemicellulose and cellulose, respectively, and to the C-O elongation of the acetyl group in lignin (Boumediri et al, 2019;Maache et al, 2017). The strong absorption peak at 1,033 cm −1 is related to the vibrations of C-O elongation associated with the cellulose polysaccharide (Liu et al, 2009), while a small band at 897 cm −1 is related to the β-glycosidic bonds between the monosaccharides (Mwaikambo & Ansell, 2002).…”

Section: Ta B L E 6 Physicochemical Composition and Technologicalmentioning

confidence: 99%

Obtaining fermentable sugars and fiber concentrate from asparagus by‐product

Laidens

Iwassa

Stevanato

et al. 2021

J. Food Process. Preserv.

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In this study, different solid-liquid extraction conditions to obtain fermentable sugars from an asparagus by-product were investigated to produce a fiber concentrate.To evaluate the effects of agitation, solvent:sample ratio and temperature, an experimental design was used and the maximum extraction conditions of reducing sugars (RS) were determined. The diffusion coefficient of sugars in water at different temperatures was obtained, as well as the thermodynamic parameters of the process. The materials obtained before and after the extraction were characterized as composition, technological properties, and functional groups. The results showed that, under the conditions evaluated, agitation had the highest influence on the RS extraction, followed by the solvent:sample ratio and temperature. The maximum RS content (~30 g 100 g −1 dry asparagus by-product) was obtained at 125 rpm, 60°C,

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Section: Ta B L E 6 Physicochemical Composition and Technologicalmentioning

confidence: 99%

Obtaining fermentable sugars and fiber concentrate from asparagus by‐product

Laidens

Iwassa

Stevanato

et al. 2021

J. Food Process. Preserv.

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“…1). The Ghars date palm used in this study represents more than 10% of the total date trees in Algeria, producing more than 20,000 tons of fronds waste (Boumediri et al 2019). Therefore, in this socioeconomic context, the present work intends to optimize the tensile properties of Algerian date palm rachis fibers in order to be used as bio-reinforcement for composite materials.…”

Section: Figurementioning

confidence: 99%

“…Date palm belongs to the Phoenix dactylifera L. family, and it is considered as an important fruit tree in Algeria with more than 20 million palm trees (Boumediri et al 2019). This large number of trees makes Algeria the largest country in Africa and the world's fourth largest producer of dates, with approximately 1.1 million tons and an increase of over 98% between 2008 and 2018 (Food and Agriculture Organization 2018) (Anon n.d.).…”

Section: Introductionmentioning

confidence: 99%

Alkali Treatment Effect on Physicochemical and Tensile Properties of Date Palm Rachis Fibers

Bezazi

Boumediri

Pino

et al. 2020

Journal of Natural Fibers

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Alkali treatment effect on physicochemical and tensile properties of date palm rachis fibersABSTRACT: This work aims to optimize the physico-chemical and tensile properties of vascular fibers extracted from a local date palm rachis in Algeria. This fiber has a very specific composition and architecture and is different from the remaining fibers obtained from the six possible parts of the tree. For this purpose, a Taguchi orthogonal array design L16 was applied to reduce the number of experiments. The fibers were extracted from the rachis with two different methods (boiling and retting in water) and treated by NaOH with various concentrations (1%, 2%, 3%, and 5%) and for different durations (1, 4, 8 and 12 hours). They were characterized using SEM-EDX, ATR-FTIR, XRD and TGA to understand the effects of the extraction method and alkali treatment. A statistical treatment of the data was carried out based on the S/N ratio and ANOVA was performed to identify the most significant parameters affecting the tensile strength and the Young's modulus of the fibers. A desirability function was developed to identify the optimal factors leading to the maximization of the tensile properties.

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“…The most studied natural resources are lignocellulosic fibres. They are biodegradable, abundant and with high technical qualities, such as moderate mechanical properties, low density and low cost, making them suitable candidates for replacing synthetic fibres 6 . Vegetable fibres cover a wide range of applications, from the most traditional to the most complex.…”

Section: Introductionmentioning

confidence: 99%

Optimal Tensile Properties of Biocomposites Made of Treated Amazonian Curauá Fibres Using Taguchi Method

et al. 2021

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Natural fibres have many advantages over synthetic ones, making them attractive for reinforcing polymer materials. This work evaluates the use of an Amazonian plant, namely Curauá (Ananas erectifolius), as a reinforcement phase of biocomposites fabricated by cold pressing. Curauá fibres have been shown to be a promising fibre for composite materials, especially due to their higher elastic modulus than other plant species. An L9 Taguchi design is used to investigate the effect of fibre fraction, NaOH concentration and immersion time on the tensile properties of biocomposites. Statistical models are able of predicting and revealing the optimal composition of the biocomposites. The tensile strength of Curauá biocomposites is significantly affected by the fibre fraction, followed by the factors of immersion time and NaOH concentration. High tensile strength is obtained by adding 25 wt.% of Curauá fibres treated under different conditions. There is an interaction between NaOH concentration and the immersion time; a higher concentration requires less time or vice versa to achieve ideal roughness, promoting strong fibre/matrix adhesion.

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Extraction and characterization of vascular bundle and fiber strand from date palm rachis as potential bio-reinforcement in composite

Cited by 95 publications

References 38 publications

Obtaining fermentable sugars and fiber concentrate from asparagus by‐product

Obtaining fermentable sugars and fiber concentrate from asparagus by‐product

Alkali Treatment Effect on Physicochemical and Tensile Properties of Date Palm Rachis Fibers

Optimal Tensile Properties of Biocomposites Made of Treated Amazonian Curauá Fibres Using Taguchi Method

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