Ali Ali El Bachiri

• Mohamed I University

Investigation of supercritical CO2 extraction and CO2 mixture with "modified" co-solvent (10%) as an environmentally friendly technology for the extraction of bioactive compounds from fresh and dried leaves of Pistacia lentiscus. The different Pistacia lentiscus leaves extracts were obtained at 150 bar, 45 °C, the ethanol and water were utilized as...

This study comprehensively analyzes the mineral and heavy metal profiles of seven honey types, focusing on the contents of potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), zinc (Zn), manganese (Mn), copper (Cu), cadmium (Cd), and lead (Pb), with particular emphasis on honey produced in eastern Morocco. Multifloral honey was found to have the...

Traditional methods like high-performance liquid chromatography (HPLC) and gas chromatography-mass spectrometry (GC-MS) are widely used in food analysis but often face limitations in detecting trace contaminants at ultra-low levels or in complex matrices. This review highlights recent breakthroughs in food analysis technologies that deliver unprece...

Maximizing the value of agricultural by-products is critical for advancing sustainable development and minimizing waste. This study delves into the solid by-products of Rosmarinus tournefortii de Noé, focusing on their fractionation and purification to unveil valuable bioactive compounds. Using flash chromatography, nine distinct fractions (F1 to F...

Biofilm formation on food packaging surfaces is a major issue in the industry, as it leads to contamination, reduces shelf life, and poses risks to human health. To mitigate these effects, developing smart coatings that can actively sense and combat microbial growth has become a critical research focus. This study is motivated by the need for intel...

This study evaluates the physicochemical properties, phenolic and flavonoid content, antioxidant activity, and molecular docking interactions of honey from eastern Morocco. Analysis confirmed compliance with European Commission standards, with moisture content ranging from 15.39% to 19.74% and pH between 3.79 and 4.94. Carob honey exhibited the hig...

This study investigates the synergistic effects of alginate@montmorillonite (Alg@Mt) hybrid microcapsules for enhancing water purification, focusing on improving the encapsulation of hydrophobic contaminants. Alg@Mt microcapsules were prepared through ionotropic gelation. Characterisation was performed using SEM-EDX, FTIR, XRD, and TGA. Encapsulati...

Exploring secondary outputs, specifically leftover materials from steam distillation of Rosmarinus tournefortii de Noé, as agents for reducing metals introduces a novel approach to eco-friendly nanomaterial production. This concept aligns with the creation of environmentally conscious nanoparticles, showcasing potential across various fields, notab...

The aims of this study were to determine the polyphenolic profile, to estimate the total phenolic and flavonoid contents, and to evaluate the antioxidant and antidiabetic activities of the extract of Pistacia lentiscus leaves, and the hydroacetonic mixture was employed as an alternative for common solvents in the extraction process. In order to exp...

Water pollution, particularly the contamination of surface water due to industrial and hospital discharges, has emerged as a significant environmental concern. A variety of methods and techniques are employed to treat these polluted waters, with adsorption on activated carbon standing out as a promising approach for water decontamination. This stud...

Scientific advancements in the food industry have resulted in the discovery of natural substances that can serve various functions in food. Essential oils, in particular, can act as food preservatives or flavoring agents due to their abundance of natural antioxidants, which possess preservative properties. In this study, the composition of Thymus v...

The use of alginate@chitosan-based polyelectrolyte complexes (PEC) in encapsulation process is common due to the electrostatic interactions between the two oppositely charged biopolymers. However, the incorporation of montmorillonite (Mt) particles in the complex formation for improving the encapsulation efficiency as well as the physicochemical pr...

This study aims to investigate the mechanical behavior of alginate-based simple and alginate@clay-based hybrid capsules under uniaxial compression using a Brookfield force machine. The effect of clay type and content on Young's modulus and nominal rupture stress of the capsules was investigated and characterized using Scanning Electron Microscopy (...

Rosemary is one of the well-known aromatic and therapeutic plants recognized for the interesting pharmacological properties of its essential oil. After hydrodistillation, a huge amount of solid residue-remains, which still contains non-volatile bioactive compounds. Our work aims to study in depth the effect of ethanol/water concentration on the ext...

In the sector of industry, there are quite a few energy production processes but pyrolysis remains the simplest one owing to its proprieties in reducing gases that contribute to atmospheric pollution. The pyrolysis of Pistacia Lentiscus L seeds was studied in pyrolysis reactors operating between 300 and 550 °C, the speed rates ranging from 5 to 30...

The Ceratonia siliqua L seed extract was extracted using different extraction methods. The characterization and identification of bioactive compounds were carried out using the HPLC-DAD. The quantification of the polyphenol and flavonoid in the cold maceration and Soxhlet extract shows a high content of both phenolic compounds in the carob seed ext...

In the present study, different organic and hybrid systems for quercetin (Qr) encapsulation were developed, namely Ca-Alginate (Qr-Alg), Ca-Alginate@Na-montmorillonite (Qr-Alg@Na-Mnt), and Ca-Alginate@CPC-montmorillonite (Qr-Alg@CPC-Mnt). Attenuated total reflecting-Fourier-transform infrared (ATR-FTIR) analysis was used to characterize and prove q...

The present study is in the aim to evaluate the antioxidative activity of Pistacia lentiscus leaf (PL) extract main components, the activity was examined using the free radical (DPPH•) assay. The HPLC analysis of Pistacia lentiscus leaf extract led to the separation of 27 compounds of which the gallic acid (GA), quercetin (QT), and catechin (CT) we...

Rosemary is a medicinal plant widely used in the food and pharmaceutical industry. In Morocco, rosemary harvesting generates significant benefits for the local economy. Even though, decision makers are short of accurate information about its geographical distribution area. The aim of this study is to delineate the rosemary shrubs in the Oriental re...

In the current study, a green method that can be easily used in different industrial applications, based on the modification of sodium exchanged montmorillonite (Na ⁺ -Mt) with essential oils (EO) such as thyme oil, thymol and carvacrol was presented. The obtained results show the prepared clays-essential oils hybrids were promising nanomaterials t...

The aim of this study was the optimization of the gallic acid (GA) encapsulation efficiency within calcium alginate microparticles by the ionotropic gelation technique, using Box-Behnken design for the surface methodology response. For this purpose, three independent variables were selected: sodium alginate concentration (X1), calcium chloride conc...

To understand the abilities of Ca-alginate microcapsules and their specific applications in different fields, it is necessary to determine the physicochemical and structural properties of those formulated microcapsules. In this work, we aimed to study the effect of alginate concentration in the improvement of the encapsulation efficiency (EE) and o...

The interactions between polymers such polysaccharides and clay can be controlled by different factors, such as the functional groups of the polymers, pH and salinity of the suspension. This study was conducted to understand the various kinds of interactions between sodium Alginate (NaAlg) a polyanion negatively charged and sodium montmorillonite (...

The interactions between polymers such polysaccharides and clay can be controlled by different factors, such as the functional groups of the polymers, pH and salinity of the suspension. This study was conducted to understand the various kinds of interactions between sodium Alginate (NaAlg) a polyanion negatively charged and sodium montmorillonite (...

Recent research and application of phenolic compounds such as gallic acid (GA), have attracted great interest in the functional foods, nutraceutical and pharmaceutical industries in the last few years, due to their several biochemical and physiological properties and potential health benefits to humans. However, the effectiveness of phenolic compou...

Research and the application of phenolic compounds, have recently attracted great interest in the functional foods, nutraceutical and pharmaceutical industries, due to their several biochemical and physiological properties and potential health benefits to humans. However, the effectiveness of phenolic compounds depends on preserving the stability,...

The modification of the clays (montmorillonite) by surfactants finds several applications in various fields, such as cosmetics, drugs, nanomaterials, etc. The experimental and the simulation of the adsorption of the cetylpyridinium surfactant on a Moroccan Na-Montmorillonite-type clay surface have been investigated. The adsorption rate of cetylpyri...

Essential oil industry produces a considerable amount of solid residues during the distillation process. These wastes are very rich in high added-value compounds like polyphenols. In this work, we have tentatively identified the polyphenols present in solid residues from the steam distillation and non-distilled extract of Lavandula dentata, and ass...

L'argile est l'un des matériaux les plus anciens utilisé par l'être humain. Dès trente-cinq mille ans avant notre ère, l’argile était utilisée par la main de l’homme, en tant que matériau pour produire des dessins dans les grottes, des histoires, traces du passé, du fait de leur grande malléabilité, avant l'apparition du papier, y a des écritures s...

The aim of this work is the valorization of Lavandula Angustifolia. by chemical characterization, and study of the formulation created by the adsorption of active components of Lavandula angustifolia essential oil on sodium modified bentonite. Essential oils were obtained from dried leaves of Lavandula angustifolia; they were extracted by hydro dis...

The analysis of essential oil has basically one technical goal: to achieve the best possible separation performance by using the most effective, available and current technology of chromatography. The present work aimed to study the formulation created by the adsorption of active components of Lavandula angustifolia essential oil on sodium modified...

The analysis of essential oil has basically one technical goal: to achieve the best possible separation performance by using the most effective, available and current technology of chromatography. The present work aimed to study the formulation created by the adsorption of active components of Lavandula angustifolia essential oil on sodium modified...

Pillared clay (PILC) was prepared from Moroccan clay and characterized, and its aqueous thymol adsorption capacities were studied using a batch equilibrium technique. So, we tested the encapsulation of thymol by aluminum pillared clay (PILC). The PILCs displayed a total surface area of 270 m2/g, a total pore volume of 0.246 cm3/g and an average por...

The aim of this work is the valorization of Pistacia lentiscus L. by chemical characterization, mineral composition, and study of the antioxidant activity of essential oil. The hydrodistillation of the fruits of this tree provides essential oil (0.56 %). 3-carene (54.10 %) and a- pinene (7.64 %) were found to be the major components. The essential...

Chemical composition of the essential oils of Cistus libanotis from eastern Morocco (Tafoughalt and Jerrada) extracted from different season was analyzed by GC-MS and GC-FID. The hydro-distilled essential oil content ranged from 0, 27% to 0, 46%, the maximum amounts were observed in summer while minimum in winter for Tafoughalt, whereas the oil obt...

This present work is part of a contribution to the recovery of natural substances. We were interested in valorising two Moroccan species of rosemary, Rosmarinus tournefortii de Noé and R. officinalis L., as possible medicinal and aromatic plants. This study gives a new perspective about the presence of some major compounds in R. tournefortii and R....

Keywords: This paper presents the study of adsorption of thymol on a clay support (bentonite). The clay used was collected from the province of Nador (North-East of Morocco). The clay was purified and doped with sodium prior to use. The obtained adsorption isotherm presents a Langmuir type for low values of equilibrium concentration with a rise of...

Notre contribution dans la valorisation de la richesse du rif en plantes aromatiques passe d’abord par une analyse des propriétés physicochimiques des plantes de ‘Cistus ladaniferus, de l’Armoise et de Lavandula angustifolia’ ainsi que par la détermination de leur composition chimique et leur pouvoir thérapeutique. Ces études sont effectuées avec...

The essential oil from flowering Thyme (Thymis vulgaris L.) an aromatic member of the Lamiaceae family, from Morocco, obtained by hydrodistillation, was analysed by GC/FID and GC/MS. The constituents were identified by their mass spectra and Kovats' indices. Forty three compounds consisting 97.85% of the total components were identified from the oi...

Volatile components of Artemisia herba-alba Asso essential oil obtained by hydrodistillation growing in eastern Morocco (Taforalt) were investigated by GC/FID and GC-MS. The major components were found to be camphor (43.07%), camphene (7.2%), 1,8-cineole (7.08%), filifolone (7.04%), borneol (4.88%), and bornyl acetate (3,79%).The essential oil has...