Biological activities and phenolic contents of &lt;i&gt;Argania spinosa&lt;/i&gt; L (Sapotaceae) leaf extract

Dakiche, Hadjira; Khali, Mustapha; Abu-el-Haija, Ahmed Khaled; Almaaytah, Ammar; Al-Balas, Qosay

doi:10.4314/tjpr.v15i12.5

Cited by 12 publications

(5 citation statements)

References 14 publications

(15 reference statements)

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“…The high antioxidant activity of ALE is most likely due to its high total phenol content (198.61 mg TYE/g DM), especially its total flavonoids content (128.41 mg CAE/g DM) represented by flavanols (59.59 mg CAE/g DM) and proanthocyanins (6.85 mg CYE/g DM). The obtained values are within the range of values reported elsewhere [ 22 , 23 , 24 , 25 , 26 , 27 , 28 ]. The total polyphenol content of argan leaves was reported to vary from 29.9 to 240 mg gallic acid equivalent (GAE)/g DM [ 22 , 23 , 24 , 25 , 26 , 27 , 28 ].…”

Section: Discussionsupporting

confidence: 89%

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Melanogenesis Promoting Effect, Antioxidant Activity, and UPLC-ESI-HRMS Characterization of Phenolic Compounds of Argan Leaves Extract

et al. 2021

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The use of natural products for the regulation of skin pigmentation is gaining popularity. In the present study, we evaluated the effect of argan leaves extract (ALE) on melanogenesis in B16 melanoma cells, determined its antioxidant activity, then quantified and identified its phenolic components. B16 cells were treated with various concentrations of ALE, then the cell viability and proliferation were assessed using MTT assay while the melanin content was determined using spectrophotometric methods. The expression level of tyrosinase (TYR), tyrosinase related protein-1 (TRP-1) and dopachrome tautomerase (DCT) was evaluated by Western blotting. The antioxidant activity of ALE was investigated using four different assays while UPLC-ESI-HRMS analysis was used to characterize the ALE phenolic profile. Fourteen phenolic compounds were identified, of which six are reported for the first time to be present in ALE. ALE treatment increases the melanin content of B16 cells in a dose-dependent manner without cytotoxicity. This was revealed by the observed ALE-increased expression level of TYR, DCT, and TRP-1. These bioactivities may be mainly attributed to its high flavonoids content. Argan leaves have the potential for use as a treatment for hypopigmentation disorders and as a bioactive component of cosmetic products that aim to increase pigmentation.

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Section: Discussionsupporting

confidence: 89%

“…The obtained values are within the range of values reported elsewhere [22][23][24][25][26][27][28]. The total polyphenol content of argan leaves was reported to vary from 29.9 to 240 mg gallic acid equivalent (GAE)/g DM [22][23][24][25][26][27][28].…”

Section: Discussionsupporting

confidence: 79%

Melanogenesis Promoting Effect, Antioxidant Activity, and UPLC-ESI-HRMS Characterization of Phenolic Compounds of Argan Leaves Extract

et al. 2021

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“…The different antibacterial activities of the two types of oils can be explained by the different amounts of the compounds responsible for the antimicrobial activity in the two oils (primarily phenolic compounds [ 48 , 49 , 50 ]). Eugenol, which increases antimicrobial and antifungal activity, is the main component (~80%) of clove oil.…”

Section: Resultsmentioning

confidence: 99%

Antioxidant/Antibacterial Electrospun Nanocoatings Applied onto PLA Films

et al. 2018

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Polylactic acid (PLA) films were coated by coaxial electrospinning with essential and vegetable oils (clove and argan oils) and encapsulated into chitosan, in order to combine the biodegradability and mechanical properties of PLA substrates with the antimicrobial and antioxidant properties of the chitosan–oil nanocoatings. It has been established that the morphology of the electrospun nanocoatings mainly depend on the average molecular weight (MW) of chitosan. Oil beads, encapsulated into the main chitosan nanofibers, were obtained using high-MW chitosan (Chit-H). Oil encapsulated in chitosan naoparticles resulted when low-MW chitosan (Chit-L) was used. The coating layer, with a thickness of 100 ± 20 nm, had greater roughness for the samples containing Chit-H compared with the samples containing Chit-L. The coated PLA films had higher antibacterial activity when the nanocoating contained clove oil rather than when argan oil was used, for both types of chitosan. Nanocoatings containing Chit-H had higher antibacterial activity compared with those containing Chit-L, for both types of oil tested, due to the larger surface area of the rougher nanoscaled morphology of the coating layer that contained Chit-L. The chitosan–clove oil combination had higher antioxidant activity compared to the simple chitosan nanocoating, which confirmed their synergistic activities. The low activity of systems containing argan oil was explained by big differences between their chemical composition and viscosity.

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“…According to Benabdesslem et al (2022), essential oils derived from argan leaves are rich in terpenic compounds (36 terpenic compounds have been identified), especially of cubenol (31.02%) and 1,10-di-epi-cubenol (22.50%), camphor (8.22%), viridiflorol (7.10%), linalool (5.60%), and eucalyptol (5.40%). Main properties of argan leaves essential oil and extract include antibacterial (Kabouss et al 2002;Dakiche et al 2016;Bonvicini et al 2017), antioxidant (El Idrissi et al 2021, and antihyperglycemic activity (Hebi and Eddouks 2019). In addition, argan leaves extract can potentially also be used for treatments of hypopigmentation disorders or as bioactive components of cosmetic products that aim to increase pigmentation (Bourhim et al 2021).…”

Section: Use Of Argan Leaves Extractsmentioning

confidence: 99%

Innovation of argan (Argania spinosa (L.) Skeels) products and byproducts for sustainable development of rural communities in Morocco. A systematic literature review

Santoro,

Ongoma,

Ait el Kadi

et al. 2023

Biodivers Conserv

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Argan tree is endemic of Moroccan arid regions, providing socioeconomic and cultural benefits since ancient times. This study identifies the emerging threats for the argan forest, and the opportunities related to the innovative uses of argan products and byproducts. Argan forest is facing pressure from overgrazing, demand for argan oil and nuts, and land degradation, despite its recognition as a UNESCO Biosphere Reserve and the inclusion in the FAO Globally Important Agricultural Heritage Systems (GIAHS) Programme. Innovative use and recycling of the waste deriving from argan nuts processing, offer promising opportunities to support a local bio-economy. Argan press cake can be used to integrate livestock feeding, to extract sudan dyes or to produce bioplastics. Argan nut shells can be used to produce environment-friendly and low-cost purifying materials and biochar, or as a source of bioenergy. Argan pulp can be used for bioethanol production or to obtain natural insect repellent. Despite these promising opportunities, the socio-economic impact of innovative uses is still limited. Local population is not sufficiently involved in management and development strategies. To support the sustainable development of local communities, it is necessary to promote a participative approach as well as training and product differentiation among argan women cooperatives.

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Biological activities and phenolic contents of <i>Argania spinosa</i> L (Sapotaceae) leaf extract

Cited by 12 publications

References 14 publications

Melanogenesis Promoting Effect, Antioxidant Activity, and UPLC-ESI-HRMS Characterization of Phenolic Compounds of Argan Leaves Extract

Melanogenesis Promoting Effect, Antioxidant Activity, and UPLC-ESI-HRMS Characterization of Phenolic Compounds of Argan Leaves Extract

Antioxidant/Antibacterial Electrospun Nanocoatings Applied onto PLA Films

Innovation of argan (Argania spinosa (L.) Skeels) products and byproducts for sustainable development of rural communities in Morocco. A systematic literature review

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