Assessment of phenotypic diversity of local Algerian date palm (Phoenix dactylifera L.) cultivars

Bedjaoui, Hanane; Benbouza, Halima

doi:10.1016/j.jssas.2018.06.002

Cited by 18 publications

(16 citation statements)

References 18 publications

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“…However, the old and dead palms could generate agricultural waste, which may pose risks to environmental conservation. It is estimated that about 100,000 tons of date palm waste is generated every year in Algeria [4][5][6]. The Algerian government has an interest in supporting the using of waste as a source to develop new biomaterial to protect the environment.…”

Section: Introductionmentioning

confidence: 99%

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Nanocrystalline Cellulose from Microcrystalline Cellulose of Date Palm Fibers as a Promising Candidate for Bio-Nanocomposites: Isolation and Characterization

et al. 2021

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Date palm fiber (Phoenix dactylifera L.) is a natural biopolymer rich in lignocellulosic components. Its high cellulose content lends them to the extraction of tiny particles like microcrystalline cellulose (MCC) and nanocrystalline cellulose (NCC). These cellulose-derived small size particles can be used as an alternative biomaterial in wide fields of application due to their renewability and sustainability. In the present work, NCC (A) and NCC (B) were isolated from date palm MCC at 60 min and 90 min hydrolysis times, respectively. The isolated NCC product was subjected to characterization to study their properties differences. With the hydrolysis treatment, the yields of produced NCC could be attained at between 22% and 25%. The infrared-ray functional analysis also revealed the isolated NCC possessed a highly exposed cellulose compartment with minimized lignoresidues of lignin and hemicellulose. From morphology evaluation, the nanoparticles’ size was decreased gradually from NCC (A) (7.51 nm width, 139.91 nm length) to NCC (B) (4.34 nm width, 111.51 nm length) as a result of fragmentation into cellulose fibrils. The crystallinity index was found increasing from NCC (A) to NCC (B). With 90 min hydrolysis time, NCC (B) showed the highest crystallinity index of 71% due to its great cellulose rigidity. For thermal analysis, NCC (B) also exhibited stable heat resistance, in associating with its highly crystalline cellulose structure. In conclusion, the NCC isolated from date palm MCC would be a promising biomaterial for various applications such as biomedical and food packaging applications.

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Section: Introductionmentioning

confidence: 99%

“…The Algerian government has an interest in supporting the using of waste as a source to develop new biomaterial to protect the environment. Therefore, the fruit bunch branches of Algerian date palm trees have become a potential raw material to be used to obtain cellulose fibers [4,5].…”

Section: Introductionmentioning

confidence: 99%

Nanocrystalline Cellulose from Microcrystalline Cellulose of Date Palm Fibers as a Promising Candidate for Bio-Nanocomposites: Isolation and Characterization

et al. 2021

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“…Statistical analyses were performed using analysis of variance (ANOVA) to detect significant variation among the cultivars for each trait, and differences between the means were determined using Tukey's HSD test at p < 0.01. Traits means values were used to perform principal component analysis (PCA) and the correlation analyses (CA) to test whether the variables are correlated in the population (12) . Cluster analysis was carried out using IBM SPSS (Ver.…”

Section: Discussionmentioning

confidence: 99%

“…Hence, cultivars characterization should be the first step because it is an essential prerequisite for evaluation of date palm varieties. Several studies have adopted morphological characteristics to identify date palm varieties (9)(10)(11)(12)(13) .…”

Section: Introductionmentioning

confidence: 99%

Phenotypic Characterization of Local Date Palm Cultivars at Jericho in Palestinian Jordan Valley District

Khalilia¹,

Abuamsha²,

Alqaddi³

et al. 2022

IJST

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“…Algeria is the third largest producer of dates in the world with 934,377 T ( FAOSTAT, 2014 ) and about 940 cultivars ( Bedjaoui and Benbouza, 2020 ). Being a large country, Algeria cultivates several varieties of dates, including the DEGLA BEIDA, TALMINE, HAMRAY, HMIRA, MECH DEGLA, DELGET NOUR, GHARS, and so forth ( Bouguedoura et al, 2015 ).…”

Section: Introductionmentioning

confidence: 99%

Optimization of citric acid production by Aspergillus niger using two downgraded Algerian date varieties

Chergui

Akretche-Kelfat

Lamoudi

et al. 2021

Saudi Journal of Biological Sciences

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In the present work, the GHARS and the MECH DEGLA downgraded date varieties were used in a fermentation medium in order to produce citric acid by the Aspergillus niger . The biochemical characteristics of the dates were investigated, along with the chemical and physical characteristics of the solutions of both samples. The analyzed parameters included the moisture and sugar content, the ash residual, the pH values, and the electrical conductivity. The effect of the following fermentation parameters was studied: initial pH, temperature, incubation period, and methanol. For the GHARS and MECH DEGLA date varieties respectively, the ash residual measured at 1.90% and 2.47%. For each date variety, the moisture and total sugars were measured at 11.59% and 85%, for the GHARS, and 12.82% and 80.47% for the MECH DEGLA. Citric acid production using either of the two varieties of dates showed a high yield in a short time. The obtained results showed that the highest production of citric acid by both medium of dates was achieved at the initial pH value of 3.0, temperature 30 °C, and an incubation period of 8 days. Also, the maximum amount of citric acid was produced when both mediums contained 4% of methanol. Both varieties of dates showed a good yield for the citric acid and can be used as a culture medium since they are economic and ensure good growth for the Aspergillus niger.

show abstract

Assessment of phenotypic diversity of local Algerian date palm (Phoenix dactylifera L.) cultivars

Cited by 18 publications

References 18 publications

Nanocrystalline Cellulose from Microcrystalline Cellulose of Date Palm Fibers as a Promising Candidate for Bio-Nanocomposites: Isolation and Characterization

Nanocrystalline Cellulose from Microcrystalline Cellulose of Date Palm Fibers as a Promising Candidate for Bio-Nanocomposites: Isolation and Characterization

Phenotypic Characterization of Local Date Palm Cultivars at Jericho in Palestinian Jordan Valley District

Optimization of citric acid production by Aspergillus niger using two downgraded Algerian date varieties

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