Publications by authors named "Majdi Hammami"

Plants constitute a source of natural phytochemical components which are widely known for their potential biological activities. This work concerned a study of the antioxidant, anticancer and anti-inflammatory activities of squirting cucumber (Ecballium elaterium L.) parts (flowers, fruits, leaves and stems) using different solvent extracts (cyclohexane, dichloromethane, ethyl acetate, methanol and water).

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  • This study explores the use of cyclopentyl methyl ether (CPME) as a more efficient and environmentally friendly alternative to hexane for extracting fenugreek seed oil.
  • In simulations and experiments, CPME outperformed hexane, yielding 7.23% oil compared to hexane's 4.25% and preserving more beneficial fatty acids and bioactive compounds.
  • CPME also demonstrates better oxidative stability and lower volatile organic compound emissions, making it a sustainable option for oil extraction while offering improved antioxidant and antibacterial properties.
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  Our study aimed to optimize carob antioxidant extraction for use in the food, cosmetic, and pharmaceutical industries. Maceration investigated ethanol concentration, extraction temperature, and time, while ultrasound-assisted extraction examined ethanol concentration, ultrasound power, and time. A central composite design with 19 experimental points assessed the influence of variables on total yield, total phenolic content, and antioxidant activity.

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This study endeavoured to capitalize on prickly pear by-products for the optimization of molasses formulation, targeting elevated antioxidant capacities and superior sugar contents. Through robust statistical modelling, the optimal cooking parameters-temperature (70-80 °C) and duration (60-90 min)-were determined, guided by responses of antioxidant activity and Brix value. A D-Optimal mixture design further delineated the ideal proportions of molasses components (pulp, peel, and seeds).

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The main objective of this research was to understand the effect of different solvents (ethanol, ethyl acetate, and hexane) on the extraction of bioactive compounds in addition to the antioxidant activity of eight Tunisian and Algerian olive leaf ( L) cultivars. The different extracts were evaluated for their content of total phenols, flavonoids, and condensed tannins. The antioxidant capacity was determined by ABTS (2,2-azinobis (3 ethylbenzothiazoline-6-sulfonic acid) and DPPH (2,2-diphenyl-1 picrylhydrazyl) methods.

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This study delved into the incorporation of wild nettle ( L.) leaves powder with virgin olive oil, exploring its potential to enhance nutritional value and health benefits. The antioxidant, antibacterial, and mineral-enrichment attributes of the resultant nettle-infused olive oil were investigated.

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Formulating a nanoemulsion (NE) of essential oil (EO) could enhance its efficiency while requiring lower concentrations. F. Muell EO was rich in monoterpenes hydrocarbons.

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The amalgamation of garlic's antibacterial potency with olive oil's nutritional benefits provides a natural, effective way to boost health and counters microbial threats. This study explored the antioxidant and antibacterial traits of garlic-enriched virgin olive oil (VOO) samples, focusing on various garlic forms (fresh, oven-dried, freeze-dried). Comparative analysis revealed fresh garlic's highest total phenolic content, flavonoid content, and strongest DPPH scavenging activity.

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The quest for eco-friendly antifungal compounds from natural sources has surged, seeking alternatives to synthetic fungicides. In this study, we explored organic extracts antifungal potential against , a destructive fungus causing grey mold disease in crops. Extracts from various phenological stages were evaluated for their antifungal activities.

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L. is a halophytic medicinal shrub traditionally used in the treatment of liver disorders. Leaf and flower infusions are widely used for anti-diarrheic and anti-inflammatory preparations.

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The present study aimed to investigate the qualitative and quantitative performance of five green solvents, namely 2-methyltetrahydrofuran (MeTHF), cyclopentyl methyl ether (CPME), -cymene, -limonene and ethanol to substitute -hexane, for sesame seed oil extraction. In fact, both CPME and MeTHF gave higher crude yields than -hexane (58.82, 54.

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  • Growing awareness of healthy diets has led to a demand for increased dietary fiber, prompting the formulation of spaghetti enriched with lupin flour and wheat bran for improved nutrition.
  • The optimal pasta recipe was created using software that analyzed the mixture, resulting in a blend of 19.60% bran, 27.83% lupin flour, and 52.75% durum wheat semolina, which enhanced the pasta's nutritional profile.
  • The enriched spaghetti showed higher protein, ash, lipids, polyphenols, and pigments, while having lower sugars, making it a better dietary choice for athletes and those on specific nutritional plans.
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Tomato pomace, composed of peels and seeds, is often discarded or used as animal feed. However, it contains valuable phytochemicals, including lycopene. Lycopene, a natural pigment, is an antioxidant known for reducing the risk of chronic diseases like cardiovascular ailments and cancer.

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  • * Pretreatment with TAEO emulsion increases the activity of antioxidant enzymes (SOD, CAT, APX, GPX) and boosts total polyphenol content, improving the antioxidant status in infected tomato plants.
  • * Key defense genes (like SlChi, SlWRKY, and SlLOX) are significantly up-regulated within 12 hours of infection, indicating that TAEO emulsion can stimulate both antioxidant responses and gene activation in tomato plants.
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This study examined the antioxidant, anticancer and antiviral properties of the methanolic extracts from bigarade ( L.) leaves at two development stages. Ferulic acid, naringin and naringenin were the principal phenolic components of young and old leaves.

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Purpose: Leishmaniasis is a parasitic disease found in tropical areas, and it affects up to 12 million individuals globally. Chemotherapies now available include drawbacks such as toxicity, high cost, and parasite resistance. This work aimed to evaluate the antileishmanial properties of essential oils (EOs) extracted from aerial parts of Cupressus sempervirens (C.

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This manuscript aimed to optimise the encapsulation of essential oil into nanoemulsion. Response Surface Methodology results were best fitted into polynomial models with regression coefficient values of more than 0.95.

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The methanolic extracts of cypress ( L.) collected at three phenological stages were evaluated for their cytotoxicity on Vero cells by MTT test as well as on (HSV-2) and coxsackie (CVB-3) viruses by plaque reduction assay. The methanolic extract exhibited the highest cytotoxicity against HSV-2 (IC = 20.

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is used as a medicinal herb in many countries. In this study, cyclohexane, dichloromethane, ethyl acetate, methanol and water were used as solvents in the extraction of fruits. The contents of total phenolics, total flavonoids, total tannins and condensed tannins as well as the biological activities of these extracts were investigated using various and assays.

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The phytochemical composition of essential oil and their anticholinesterase, antioxidant, and insecticidal potential were studied. Also, the oil volatile fraction was compared in semolina at the beginning and after storage periods. For that, a headspace solid-phase-microextraction analysis (HS-SPME) coupled with gas chromatography and mass spectrometry was undertaken.

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  • The study investigated the antifungal effects of laurel, myrtle, and peppermint essential oils on the mycelial growth of Alternaria alternata and on Citrus leaf disease.
  • Myrtle oil contained α-pinene and 1,8-cineole, while peppermint oil was rich in menthol and menthone, with laurel oil primarily composed of 1,8-cineole.
  • The essential oils effectively inhibited fungal growth at a concentration of 3 mg/mL, with a notable synergistic effect observed when peppermint and laurel oils were combined, significantly reducing mycelial growth on infected leaves at concentrations above 1.5 mg/mL.
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This research aimed to study the chemical composition of   methanolic extract and its biological activities as an antioxidant, and its antibacterial, antifungal and anti-inflammatory activities based on four bioclimatic collection stages. The contents of total phenols, total flavonoids and total tannins were determined. Nine phenolic compounds were identified by LC-DAD-ESI-MS/MS.

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A comparative study of bioactive lipids extraction from black cumin ( L.) and basil ( L.) seeds using conventional petroleum-based solvent and green solvent 2-methyltetrahydrofuran (MeTHF) was performed.

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Introduction: Synthetic colourants are subject to various allergies. As a result, the use of plant-based additives has proved promising.

Objective: It is in this perspective that our objective was undertaken to investigate natural colourants from edible cactus.

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The aim of this study was to optimize the mechanical and texture properties of edible film improving its antibacterial property after adding rosemary essential oil (REO) using a Doehlert matrix. Films with the highest mechanical properties were acquired using a polymer composition of 65.2% glycerol, 24.

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