Nabil Kadri

Université de Béjaïa · Laboratory of Biochemistry, Biophysics, Biomathematics and Scientometry (L3BS), Bejaia University, Algeria

The study aims to optimize MAE of total phenolic compounds (TPC) and antioxidant capacity from Salvia officinalis L. leaves using a definitive screening design (DSD) and I-optimal design. UHPLC-HRMS analysis was used to identify and compare the composition of MAE and UAE optimal extracts. The results showed that DSD and I-optimal design were succes...

The development of new functional olive oils may help in prevention of chronic diseases and improving the quality of life for many consumers. This is focused on the enrichment of enrich virgin olive oil (VOO) with Pistachia lentiscus leaves powder using optimized ultrasound assisted maceration (UAM) to enhance antioxidant activity and its oxidative...

This research work aims to explore for the first time the effect of two drying processes on Algerian blood oranges (Citrus sinensis [L.] Osbeck): microwave(200, 400, 600, and 800 W) and convective(40°C, 60°C, 80°C, 100°C, and 120°C), on drying characteristics. The drying time was reduced from 90 min at 120°C (rate of 2.00 × 10⁻² kgH2O/kg dm.min) to...

A definitive screening design and an I-optimal design were carried out for the screening and optimization of ultrasound’s extraction conditions of total phenolic compounds (TPC) and antioxidant capacities (TEAC and TAC) from S. officinalis L. leaves. The optimal conditions for maximum TPC, TEAC, and TAC were 52% ethanol-water, 60 ◦C temperature, 30...

Jujube fruit is a considerable source of antioxidants that could be used as ingredients against several diseases. The optimization of microwave-assisted extraction (MAE) of bioactive compounds from Z. lotus pulp and peel (Zlp) was achieved using response surface methodology. The effect of the extraction parameters (microwave power “MW”, extraction...

The present study was undertaken with the main objective to investigate the influence of alkali extraction conditions; pH (8‐10), time (60‐120 min) and solvent‐to‐sample ratio (1:10‐1:30 g/ml) on the purity of Pinus pinea L. nuts protein isolates and their functionalities (solubility and emulsifying activity) using response surface methodology (RSM...

Aleppo pine seeds are a potential candidate for the production of nondairy milk due to their high protein (26%) and lipid (37%) content and their availability. For the first time, this study presents the implementation of a manufacturing scheme from seeds to final product, including pre-extraction, extraction, and post-extraction (physical and micr...

The recovery of food waste is a stimulating opportunity for and competitive development of agroindustries. In this context, the objective of this study was to report the antioxidant potential and phenolic compounds content of olive stones (OS) of six Algerian cultivars. Two extraction methods were used: microwave assisted extraction (MAE) and conve...

The present study was aimed to optimize the extraction conditions of total phenolic contents (TPC) from Zizyphus lotus seeds (Zls) samples by microwave procedure using response surface methodology in order to obtain maximum extraction yields. Central Composite Design was employed with three factors defined as solvent concentration (X1), irradiation...

The purpose of this review is to compile the literature published about different aspects of microwave-assisted extraction (MAE) use and ultrasound-assisted extraction (UAE) applied on jujube worldwide and to compare the results on the antioxidant activity obtained for each extraction method. As a result of the increased consumers demand for natura...

The study aims to optimize the microwave-assisted hydrodistillation (MAHD) of Foeniculum vulgare seed essential oil (FSEO), for the purposes of maximizing efficiency and reducing costs in terms of time and energy. Plackett–Burman design (PBD) was investigated to screen the six different variables affecting FSEO extraction and select the most signif...

In the present study, we have optimized by surface response methodology (BBD model) phenolic compounds recovery using microwave-assisted extraction (MAE) as an innovative technique. The extraction was carried out under different experimental conditions: ethanol/water (x1, 30–80 %), time (x2, 30–180 seconds), microwave power (x3, 500–900 W) and solv...

Grapevine leaves are used in the cuisines in the countries surrounding the Mediterranean and in folk medicine. They contain a huge amount of phenolic constituents. To optimize the extraction of bioactive compounds present in grapevine leaves, two methods of extraction were compared: conventional solvent extraction (CSE) and microwave-assisted extra...

Jujube plant is a potential source of polyphenols with biological propreties. The purpose of this study was to investigate the application of ultrasound technique for extracting phenolic compounds (TPC) from seeds of Zizyphus lotus under optimization conditions based on response surface methodology. A maximum TPC, total flavonoids content (TFC), an...

PurposeThe active ingredient recovery from the vegetable is a very attractive research field for the development of a sustainable economy; to revalue the jujube fruit (Zizyphus lotus) polysaccharide (ZLPS), an optimized green microwave-assisted method was used for the recovery and enrichment of the antioxidants present in a distilled water extract....

Vegetable proteins are widely used in many food formulations due to their physico-chemical properties, low cost and availability. The main objective of this work is to study the chemical composition and properties of a protein concentrate of Pinus halepensis. Mill seeds (PHPC) and mainly to optimize the effect of pH, NaCl concentration and phosphat...

Abstract Common fig is very appreciated fruit with several applications and medicinal and pharmacological properties. The aim of this work was to determinate the phenolic contents and to assess the biological activities of Ficus carica leaves dried using two methods; in the shade and in the oven. The phenolic compounds (total phenolics, flavonoids...

Abstract Background Plant and medicinal herbs are important sources of bioactive compounds and minerals that can play a role in preventing various diseases and they are considered a factor indispensable for the proper functioning of the human body. Methods We investigated the content of carotenoids and chlorophylls of leaves from Pallenis spinosa...

This study was designed to evaluate, for the first time, the effect of the precipitation solvent (Acetone, Ethanol, and Propanol) on the antioxidant, anti-inflammatory and anticoagulant activities of the polysaccharides extract from Aleppo pine seeds. The antioxidant activity was evaluated with different tests (ABTS, DPPH, metal chelation, ferric r...

Les zones rurales notamment les zones de montagne sont les lieux symboliques d'une diversitéde produits agroalimentaires de grande qualité.La valorisation de ces produits du terroir à l’international (exportation) est hautement rémunérateur pour les producteurs. Au-delà de la reconnaissance de la qualité (Appellation d’Origine, Labelbiologique...),...

The pine is one of the traditional medicinal plants that has many biological properties, which are attributed to its richness in phenolic compounds. In thisstudy,theethanolic and aqueous extract of Pinus halepensis Mill seeds were evaluated evaluated on in vitro antioxidant activity and anti-inflammatory, antispasmodic and in vivo cholesterol- lowe...

Le présent travail consiste à comparer de deux techniques de séchage, conventionnel (étuve) et micro-onde de l’orange sanguine (Citrus sinensis) variété Moro. Des cinétiques de séchage ont été réalisées en fonction de la perte de masse de l’orange, ainsi que l’évaluation de la composition phyto-chimique et l’activité antioxydante de la poudre obten...

L-Asparaginase is an enzyme that hydrolyses the amino acid L-Asparagine into aspartic acid and ammonia. As a medication, L-Asparaginase is used in chemotherapy to treat acute lymphoblastic leukaemia by depleting circulating Asparagine and depriving tumor cells. Interest in Actinomycetes as potential producers of antibiotics and enzymes encouraged u...

L-Asparaginase is an enzyme that hydrolyses the amino acid L-Asparagine into aspartic acid and ammonia. As a medication, L-Asparaginase is used in chemotherapy to treat acute lymphoblastic leukaemia by depleting circulating Asparagine and depriving tumor cells. Interest in Actinomycetes as potential producers of antibiotics and enzymes encouraged u...

Two different extraction methods, microwave-assisted extraction (MAE) and conventional extraction (CE) were used for a comparative study of Algerian Myrtle leaf, stems, pericarp, and seeds. MAE of phenolic compounds from the aerial parts of M. communis was studied and the results were compared with those of the conventional maceration in terms of e...

Two different extraction methods, microwave-assisted extraction (MAE) and conventional extraction (CE) were used for a comparative study of Algerian Myrtle leaf, stems, pericarp, and seeds. MAE of phenolic compounds from the aerial parts of M. communis was studied and the results were compared with those of the conventional maceration in terms of e...

BACKGROUD: Coffee is the most popular beverages consumed worldwide. It is an important source of antioxidants that can inhibit harmful effects of free radicals. OBJECTIVE: Comparative analysis of imported, roasted and consumed coffee in Algeria. METHODS: Investigation of the hydroxycinnamic acids profile of dark roasted coffee beans UHPLC-DAD-ESI-M...

BACKGROUND/AIM: The hypolipidemic potential of both leaf and twig extracts of Ficus carica on experimental hyperlipidaemia induced by Triton WR-1339, in Swiss albino mice was investigated. In addition, the phenolic, flavonoid and anthocyanin contents of these extracts and their antioxidant activities were determined. These properties may have a syn...

Background: Recently, a great deal of interest has been developed to isolate novel bioactive compounds from terrestrial and marine resources because of their numerous health beneficial effects. Among the sources studied, we cite brown seaweeds (Cystoseira barbata) as marine sources where we have investigated their polysaccharides (CBPPs) for antiox...

Medicinal plants and culinary herbs with thérapeutique and little toxicity properties have gained importance. No toxic and antiangiogenic phytochemicals are useful in combating cancer by preventing theformation of new blood vessels to support the tumor growth. Lipid fractions from Pinus halepensis Mill seeds were separated by column chromatography...

It has been known for many centuries that a clear relationship exists between the food we eat and our health. As early as 1564, citrus fruit were used empirically for the prevention and treatment of diseases. However, it was not until the middle of the 18th century that the role of citrus fruit in fighting scurvy was scientifically demonstrated. In...

L’objectif du présent travail est d’étudier la capacité de l’Eco-extraction et de l’Eco-séchage par microondes et ultrasons dans l'amélioration du rendement d’extraction des composés phénoliques et l’activité antioxydante. L'extraction assistée par micro-ondes (EAM) des composés phénoliques totaux (CPT) du péricarpe de myrte montre une réduction du...

L'extraction est la première étape pour la séparation et la purification des composés des matrices diverses. Un nombre de procédés traditionnels (ex. Soxhlet, Macération etc.) ont été utilisés dans le passé au cours des années 1800-1950 à des fins analytiques. Ces procédés ils consomment beaucoup de solvant, longs, risque d’oxydation des substances...

Recently, a great deal of interest has been developed to isolate novel bioactive compounds from terrestrial and marine resources because of their numerous health beneficial effects. Among the sources studied, we cite brown seaweeds (Cystoseira barbata) as marie sources where we have investigated their polysaccharides for DNA Damage, and Pinus halep...

Lipids oxidation is one of the main ways that affect the nutritional quality of extra virgin olive oil (EVOO) by losing its phenolic substances and especially during heating treatments. This study was focused on the evaluation of the effect of Myrtus communis phenolic compounds-enriched extra virgin olive oil (McPC- EEVOO) on phenolic compounds com...

Between January 2011 and January 2013, parasitofauna of 1643 specimens, obtained both from wild sources (n=1545) and aquaculture (n=98) were studied. From 14 fish species, 17 parasitic species were isolated, of which three species represent a new geographical record. Despite their low infestation rate, some isolated parasite species induce serious...

Background It is important to consider the optimum conditions and processing factors (like solvent type) influencing activity of plant antioxidants for utilization in food and biological systems. Methods The antioxidant capacity and phenolic content of two Results The efficiency of the used solvents to extract phenols from the two species varied...

Background Myrtle ( Methods Extraction yield/efficiency and antioxidant activity were measured using radical scavenging assay (DPPH Results The results show that the MAE was higher in terms of saving energy, extraction time (62 s) and extraction efficiency of bioactive compound compared to CME (2 h). Leaf presented the optimum content of total ph...

Background Phenolic compounds from Methods Methanolic and aqueous extracts were isolated from Results The results showed that aqueous extracts of all species are rich in total phenolic compounds and flavonoids (from 68.23 to 125.28 mg GAE/g DM) and (from 11.99 to 46.25 mg QE/g DM) respectively. The methanolic and aqueous extracts were examined fo...

The use of bioindicator is very important for assessing the pollution intensity by accumulation of pollutants and lead in particular. The measurement of this accumulation in some organisms such as lichens and its effects on the physiological and morphological characteristics was found very effective to answer this problem. It is in this context tha...

Design of experiments (DOE) based on central composite design (CCD) and artificial neural networks (ANNs) were efficaciously applied for the study of the operating parameters of ultrasound assisted extraction (UAE) in the recovery of phenolic compounds from P. lentiscus leaves. These models were used to evaluate the effects of process variables and...