Bachar Zebib

Dieback diseases are caused by Fomitiporia and Botryosphaeria two genus of fungi that colonize wood tissue in grapevine. After the prohibition of sodium arsenite in 2001, no chemical treatments are available to control these diseases. Curettage is a possible substitute solution. The results depend on many factors. The use of essential oils can be a...

Sour orange (Citrus aurantium L.), which belongs to the Rutaceae family, is used around the Mediterranean Sea for ornamental and agronomic purposes as a rootstock for the Citrus species. Peels and flowers, the most-used parts of Citrus aurantium L., have constituted a largely promising area of research for their many medicinal properties. However,...

Background: The effects of different fertilizer types and their application rates on leaf nutrient content and avocado yield are unclear. An evaluation of eucalyptus-wood-based compost applied at 0, 5, 10, and 15 t ha−1 year−1 on foliar nutrient content, yield, and fruit size distribution (%) was completed at Mooketsi and Politsi, Limpopo Province,...

Agriculture depends on fertilizers to provide nutrients for plants. Phosphorus (P) is one of these nutrients and is the second-most necessary for plant growth. Global production of P fertilizer is concentrated in Morocco, China and the United States. A large amounts of P resources are found in organic wastes that can be transformed through phosphat...

This study highlights, for the first time, the effect of Algerian nettle (Urtica dioïca L.) water extract against some phytopathogens bacteria. Results showed that water extract exhibited high level of total phenol content (261.7 ± 5.1 mg g−1 GAE) and a remarkable antioxidant activity (IC50 = 20.0 ± 0.6 µg mL−1) comparable to Trolox as reference (I...

The importance given to oleaginous crops is mainly due to the oils provided by their seeds. Currently, the oilseed sector is distinguished by cultivation of soybean, rapeseed and sunflower on large-scale compared to other species. Nevertheless, climatic conditions and genetic variability determine greatly the oil content and its physicochemical cha...

Essential oil is widely used in perfumery, cosmetic, pharmaceutic and food industries. The economics of essential oil production depend on both parameters; the cultivation of aromatic herbs and the extraction of oils from these herbs. This study investigated for the first time the variation in essential oil and composition of Cytisus triflorus L'He...

Labdelli et al.: Study of seed dormancy origins in three Atlas pistachio ecotypes (Pistacia atlantica Desf.)-13555-APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH 17(6):13555-13565. Abstract. The Atlas pistachio (Pistacia atlantica Desf.), a rustic tree distributed in different bioclimatic areas, is rapidly declining, particularly in Algeria. Among the...

The effect of salinity and water stresses on the essential oil components of Rosmarinus officinalis essential oil was investigated. Rosemary plants were submitted to different water treatments: tap water (TW), salt water (SW) and without irrigation (NIR). GC/MS analysis showed that ten and eleven volatile compounds were identified in essential oil...

This study aims to compare the yield and lipid composition of milk in dairy cows depending on the nature of distributed feed supply as concentrate. The Impact of feed supply was evaluated by introduction of maize and soya meal (C1), brewer’s spent grains (C2) and distiller’s dried grains with solubles (C3) into feed regime of Holstein and Montbelia...

This study investigated the effect of vermicompost tea (VCT) as a natural foliar fertilizer in faba bean. To determine the effect of VCT at different doses on the growth and reproduction of faba bean, VCT was produced and three different concentrations (0, 10, and 20% VCT) were applied as a foliar fertilizer to faba bean plants. Plant height, numbe...

This study aimed to evaluate the in vitro antifungal activity (AA) of the essential oil (EO) of lemon (Citrus limon L.) against three pathogenic fungi attacking grapevine wood. The composition of the EO was also studied. Ten volatile components were identified by gas chromatography-mass spectrometry. The results showed that the EO consists of volat...

Background: This study aimed to examine the composition of essential oil (EO) of A. millefolium aerial parts wild plant grown in France and evaluate its antioxidant, antibacterial, and antifungal activities. Methods: GC-MS was used to identify the chemical composition of EO. Antioxidant activity (AA) of EO was evaluated by Oxipres method. Antimicro...

Agricultural and industrial residues obtained after isolating essential oil very often constitute more than 99% of the raw material and represent a potential natural source for antioxidants and other valuable substances; however, nowadays they are poorly exploited. For the first time, this study investigated antioxidant properties and bioactive com...

Tussilago farfara (L.), an Asteraceae of interest for traditional medicine, is known as a source of valuable essential oil (EO). The chemical composition of hydrodistilled EO of T. farfara flowers and stems was determined by GC and GC/MS techniques. Comparatively, quantitative and qualitative differences were observed in EO composition from both se...

Satureja myrtifolia (Boiss. & Hohen.) Greuter & Burdeta medicinal plant belonging to the Lamiaceae family was collected from south of Lebanon and hydro-distilled by Clevenger method. Essential oil composition from aerial parts was analyzed by GC-MS technique. The odor of essential oil is characteristic, and clear yellow liquid oil was obtained afte...

The invention relates to a method for the synthesis of acylglycerol oligomers, characterised in that it comprises reacting: at least one precursor selected from the group formed by cyclic carbonic esters of α/α'-acylglycerol having general formula (IV) (Formula); at least one metal catalyst selected from the group formed by metal cation salts, orga...

The microalgal structure has been investigated to evaluate the release of proteins in aqueous media from five microalgae after conducting different cell disruption techniques: manual grinding, ultrasonication, alkaline treatment, and high-pressure treatment. After conducting cell disruption, the protein concentration in water was determined for all...

Residues obtained after isolating essential oil very often constitute more than 99% of the total raw material. Such residues are poorly exploited although they may represent a potential sustainable source for valuable natural products. This study investigated antioxidant properties and the composition of bioactive compounds (total phenolics, flavon...

A novel mesoporous material, named LRS-2, was obtained by isomorphic Al substitution and delamination of a naturally occurring kenyaite silicate layer. Delamination procedure consisting of kenyaite layers exfoliation with cetyltrimethylammonium [C16H33(CH3)3N+] alkyl chain in the presence of tetrapropylammonium hydroxide, followed by sonication ste...

The chemical composition of essential oils of sweet cicely (Myrrhis odorata (L.) Scop.) leaves from two geographic areas (Lithuania and France) were determined by gas chromatography/mass spectrometry (GC/MS). Comparatively slight differences were observed in the chemical composition of essential oils from both selected origins. The yield of essenti...

BACKGROUND: Today, few known plant species provide both an essential oil (EO) and a vegetable oil (VO). Seed and husk of two Aframomum species were investigated and compared in terms of EO, fatty acids, tocopherols, and tocotrienols. RESULTS: EO yield reaches 15.3 g kg−1 in the seeds and 3.2 g kg−1 in the husks, while VO yield is 180.0 g kg−1 in th...

La présente invention concerne un néo-matériau hybride de séquestration de principe actif dans une émulsion fluide concentrée comprenant : -un coeur hydrophobe comprenant au moins un principe actif doté d'au moins un cycle aromatique, -une couche de tensioactif anionique de type sels d'acides carboxyliques lipophiles, -une phase lipidique monodispe...

The purpose of present study was to stabilize curcumin food pigment by its complexation with divalent ions like (Zn(2+), Cu(2+), Mg(2+), Se(2+)), in "green media" and evaluate its stability in vitro compared to curcumin alone. The curcumin complexes were prepared by mechanical mixture of curcumin and sulfate salts of each metal (metal : curcumin 1/...

The condensation of technical-grade oleic acid (OA) (65%, 85%, and 90% oleic acid) with glycidol (Gly) was carried out in an aqueous medium in the presence of a macroporous anion-exchange resin containing ammonium groups. The reaction was optimized by a unifactorial method and by a 2n−1 fractional factorial plan. The effects of the following main p...

La présente invention concerne un procédé de protection de principes actifs utilisés dans l'alimentation animale et humaine comprenant les étapes suivantes, réalisées à une température inférieure ou égale à 600C et sous atmosphère non contrôlée : mélanger un principe actif avec un cation métallique en présence d'eau et de glycérol au cours d'une ré...

Well-crystallized samples of the phyllosilicate magadiite have been synthesized in their sodic form, both purely silicic and with an Al/Si ratio of 30. They have been delaminated by a procedure consisting of CTMA+ swelling in the presence of TPAOH, sonication, and calcination at 700°C to remove the organics, and characterized by XRD, 27Al and 29Si...

Two routes for the preparation of high surface area silica-alumina materials with strong Brønsted acidity and open porosity are examined: one uses the organisation of β-zeolite seeds with surfactant micelles, and the other the delamination of Al-Magadiite, a naturally occurring sodium phyllosilicate. The textures, of these materials are characteris...

Well-crystallized samples of the phyllosilicate magadiite have been synthesized in their sodic form, both purely silicic and with an Al/Si ratio of 30. They have been delaminated by a procedure consisting of CTMA+ swelling in the presence of TPAOH, sonication, and calcination at 700 °C to remove the organics and characterized by XRD, 27Al, and 29Si...