141 Works

Drying kinetics and mathematical modeling of Moroccan Peppermint tea (Mentha Piperita)

MACHHOUR Hasna, IDLIMAM Ali, MAHROUZ Mostapha Mostapha, KOUHILA Mohamed & SAMRI Salah Eddine
Peppermint leaves (Mentha x piperita L.) washed with water or citric acid solution () were dried under open sun. The drying kinetics on a thin layer of peppermint tea was studied at temperature of 80 °C and at drying air velocities of. An indirect forced convective solar dryer in continuous was used in the experiments. The drying time is almost identical for the pilot and treated peppermint tea. It is 80 min. Ten mathematical models...

Taxonomic and botanical retrospective review of Pistacia atlantica Desf. (Anacardiaceae)

El Zerey-Belaskri Asma
Pistacia atlantica, an Irano-Touranian member of the Anacardiaceae family, is known for its distinctive ecological plasticity. Both ecological plasticity and phenotypic plasticity are closely related. This latter concept is defined as the variability of phenotypic expression of one genotype exposed to different environmental conditions and producing a large phenotypic range. It is likely that phenotypic plasticity plays an important role in diversification. The morphological features are very important for species characterization. They have mono or...

Influence of ecological conditions on some secondary metabolites variations in Moroccan Juniperus thurifera stands

The aim of this work is to study the influence of ecological conditions on some secondary metabolites (phenols and flavonoïds) in 14 Juniperus thurifera stands collected from the High and the Middle Atlas Mountains of Morocco. Total phenol and flavonoïd contents were determined spectophotometrically using Folin-Ciocalteu and AlCl3 reagents, respectively. The antioxidant activity of the methanolic extracts was examined by DPPH method. The total phenol contents ranged from 137 mg GAE/g DW (in Bouiblan) to...

Antiproliferative activity of Origanum compactum extract on lung cancer and hepatoma cells

Wahid Chaouki, Bouchra Meddah & Mohamed Hmamouchi
Natural products have been shown to present interesting biological and pharmacological activities and are used as cancer preventive and therapeutic agents. Plants have historically been used in treating cancer and are recognized for their ability to produce secondary metabolites. Origanum compactum Benth. (Lamiaceae) is a well-known Moroccan plant with cancer-related ethnobotanical use. Previously, we demonstrated that ethyl acetate extract of O. compactum had antiproliferative potential on human breast tumor MCF-7 cells. The purpose of this...

Effect of flavonoïds from Arbutus unedo leaves on rat isolated thoracic aorta

S. Afkir, M. Markaoui, M. Aziz, M. Bnouham, H. Mekhfi, A. Legssyer & A. Ziyyat
Arbutus unedo (A. unedo) is a medicinal plant commonly used to treat hypertension and diabetes in Oriental Morocco. Our previous studies showed that A. unedo has a vascular, diuretic, natriuretic, antiagregant and antidiabetic properties. Our goal was to show the vascular action of two groups of flavonoids (free and heterosidic flavonoids) extracted from the leaves of A. unedo on the isolated aorta of rat. A. unedo leaves were collected from Tazekka Mountain (Morocco). Two flavonoïds-enriched...

Antimicrobial activity of fruits, leaves, seeds and stems extracts of Ziziphus spina -Christi

Aisha B. Ali, Aisha Z. Almagboul & Omer M. Mohammed
Petroleum ether , chloroform , methanol and aqueous extracts of the fruits, leaves, seeds and stems of Ziziphus spina -Christi belonging to the family Rhamnaceae were screened for their antimicrobial activity against six standard bacteria: two Gram positive (Bacillus subtilis ,Staphylococcus aureus),four Gram negative (Escherichia coli, Klebsiella pneumoniae, Proteus vulgaris and Pseudomonas aeruginosa) and two fungi (Aspergillus niger and Candida albicans) using the cup plate agar diffusion method. The methanol extracts of all parts showed...

Phytochemical screening and antioxidant activity of four Moroccan Thymus species: T. leptobotrys Murb. , T. pallidus Batt. , T. broussonetti Boiss. and T. maroccanus Ball

Ahlam Sayout, Fatima Bahi, Mohammed Ouknin, Youssef Arjouni, Lhou Majidi & Abderrahmane Romane
In this study, four species of Thymus (T. leptobotrys Murb. , T. pallidus Batt. , T. broussonetti Boiss. and T. maroccanus Ball.) were studied. The phytochemical screening revealed that leaves and steams of the four species, in general, contain tannins, flavonoids, coumarins, saponins, carotenoids, reducing sugars, quinones, terpenoids, steroids and triterpenoids. The antioxidant effects of methanolic extracts from Moroccan Thymus species were studied using two experiments having different mechanisms. The antioxidant activity was measured by...

A comparative analysis of ethnobotanical applications by the AbaWanga people in western Kenya

Ndondolo Owuor N
AbaWanga people of western Kenya are known to have a rich history of ethnobotanical knowledge, probably due to their long interactive history of migration from North Africa to West Africa and then to Central and finally to East Africa. Their collective and accumulative ethnobotanical knowledge during the long migration and settling at their current geographical location largely remains unknown and is likely to be just as rich and worth analyzing, hence the current study of...

ATR-FTIR Spectra Fingerprinting of Medicinal Herbs Extracts Prepared Using Microwave Extraction

Topalăa C.M. Tătarua L.D
The present study aims to fingerprint 4 extracts of medicinal herbs: horsetail. (Equisetum arvense L.), milfoil (Achillea millefolium L.), comfrey (Symphytum officinale L.) and purple loosestrife (Lythrum salicaria L.) by ATR-FTIR spectroscopy. Extracts of medicinal plants were performed by Microwave-assisted extraction (MAE). In order to determine the fingerprint of each extract plants sample the FTIR was used and permit to characterize the presence of functional groups and to identify the specific fingerprint region. A good...

Analysis of volatile compounds from Angelica seeds obtained by headspace method

Acimovica M. Cvetkovicb M.
The study was performed in order to determine the profile of volatile components of the garden angelica (Angelica archangelica L.) and wild angelica (A. sylvestris L.) seeds. The volatile ingredients were isolated by headspace techniques and analyzed by means of gas chromatography‒flame ionization detector (GC‒FID) and gas chromatography‒mass spectrometry (GC‒MS). It was found that A. archangelica seed consists of 29 components among which the dominant is b‒phellandrene (84.7%), followed by α‒phellandrene (3.4%), α‒pinene (2.5%), myrcene...

Secondary metabolites from Teucrium polium L. collected in Southern Iran

Alessandro Venditti
In this paper a comprehensive phytochemical analysis of the ethanolic extract obtained from a sample of Teucrum polium collected in Southern Iran is reported. Several phenolic components were identified such as flavonoids and phenylethanoid glycosides which together resulted to be the principal components of the extract. In particular, these compounds were cirsilineol (1), apigenin 7-O-rutinoside (isorhoifolin) (2), cirsimaritin (4), diosmetin (5), apigenin (6), cirsiliol (7) and, lastly, poliumoside (3). Their presence may justify, from the...

Contribution to the study of medicinal plants used in the treatment of diabetes, obesity and hypertension in Tafilalet region (Morocco)

Mohamed Eddouks
The aims of the current review were to give an overview of the contribution of our research team to the study of antidiabetic, antihypertensive and anti-obesity medicinal plants in the southeastern region of Morocco (Tafilalet). A systematic literature search using PubMed, Scopus, and ResearchGate was conducted in regard to studies (established by our research team and those carried out by other researchers) that evaluated pharmacological interventions aiming to ameliorate diabetes mellitus, hypertension and obesity using...

Influence of different levels of Ethephon on the growth and flowering of Euphorbia pulcherrima var. 'Freedom Red'.

Nabil Toaima Salah Mahmoud & Mohamed Hamza Mahmoud Nour El Deen
This study was carried out at the experimental farm of Horticultural Department, Faculty of Agriculture., Al-Azhar University, Nasr City, Cairo, Egypt, during the two successive seasons of 2014/2015 and 2015/2016. The effect of ethephon at different the rate on Euphorbia pulcherrima var. 'Freedom Red' plants was studied to dwarf their height aiming to produce more compact potted plants. The maximum dwarfing was obtained with ethephon at 1000 ppm, which recorded average height of 22.95 and...

Characterization and Antifungal Activity of Andrographisp aniculata Herbal Gel

Tuan Noorkorinaab T.K, Harunab A & Roziawatiab Y
Andrographisp aniculata (AP), a herbal plant, is claimed to possess various pharmacological activities such as antifungal agents. The aim of the present study is to formulate and evaluate the gel containing ethanol extract from AP for its characterization and topical antifungal activity against superficial mycoses. Gelling agent used was 100% petroleum jelly. In the present study, the different concentration of the AP ethanol extracts were homogenized with petroleum jelly for the formulation of gel. The...

Antimicrobial activities, phytochemical and antioxidant analyses of Phyllanthus mullerianus (KUNTZ) Exell methanol and aqueous leaf extracts

AKHARAIYI Fred Coolborn, DINA Abayomi Olabanjo & OKAFOR Arthur Chinedu
The development of resistance in many microorganisms to synthetic drugs, inability of these synthetic drugs to provide cure for some diseases and infections calls for serious attention. Due to this development, the antimicrobial activity, preliminary phytochemical analysis and antioxidant properties of aqueous and methanol leaf extracts ofPhyllanthusmuellerianus was studied. Well in agar diffusion method was used for the antimicrobial test. Chemical methods wasused to preliminarily screen for phytochemical constituents and in vitro antioxidant quality. The...

Determination of some biochemical parameters from leaves of Quercus ilex L.(Fagaceae), collected in Djabel Zagouan (Tunisia)

Sana Dallali, Refka Zouaouia, Dhouha Dallalic, Sabeur Jdidia & Lamjed Toumia
Biochemical characterization, such as, fatty acids, essential oils composition, polyphenols content and antioxidant activities, were investigated from leaves, of Quercus ilex L.(Fagaceae), collected in DjabelZagouan (Tunisia). Only the fatty acid composition was determined by gas chromatography after transformation of the fatty acids into methyl ester derivatives compatible for injection in a Gas Chromatograph,and determined by gas chromatography (GC-FID). Essential oils were extracted by hydrodistillation and, analyzed by gas chromatography (GC-FID). Total phenolic content, concentration of...

Plants Mixture Approach: Effect of extraction methods on Polyphenolic Content of Some Medicinal Plants Used against Oral Disorder

On the basis of an ethnobotanical survey with herbalists, who cites plants in a mixed way against dental disorders, comes the idea of this article, for tests of total phenolic compounds the colorimetric method Folin-Ciocalteu, for flavonoids content the standard catechin and for condensed tannins the acidified vanillin was used. Three methods were also used for crude extractions; namely: infusion, decoction and Soxhlet techniques, the results were statistically analyzed and different correlations between samples and...

The use of Ulva lactuca seaweed for post harvesting control of Penicillium digitatum in citrus fruits

Josephine AL ALAM, Douaa Salim, Ziad Fajloun, Maurice Millet & Asma Chbani
Seaweed liquid extracts (SLE) were assessed as natural antifungal products for the control of the post-harvest citrus green mold Penicillium digitatum. The SLE of a green alga, Ulva lactuca, at different concentration (25, 50, 100 and 200 g L-1) were evaluated for their inhibitory potential of the in vivo development of P. digitatum on fresh oranges and of the in vitro conidia germination and tube elongation of the mold on potato dextrose broth (PDB). The...

Effect of phenological stages on yield, chemical composition and biological properties of essential oil from Thymus maroccanus Ball.

A. Aljaiyash, H. Labiad, C Alaoui, M. Ghanmie & B. Satranie
The effects of phenological stages on the composition, antioxidant, insecticidal and allelopathic properties of essential oils (EOs) obtained from the aerial parts of Thymus maroccanus Ball. were evaluated. The GC-MS analysis identified that analyzed EOs were dominated by carvacrol (63.70 - 68.19 %) followed by p-cymene (6.09 - 9.67 %) and γ-terpinene (3.67 - 8.49 %). When carvacrol and p-cymene gradually increased from the lowest values (63.70% and 6.09%) at the pre-flowering stage to reach...

Phytochemical screening and Antioxidant activity of Opuntia ficus-indica seeds from Algeria

Dib Hananea, Meryema Seladji, Abdelhamid Imada El-Haci, Chahida Benammar & Belarbi Meriema Belarbi Meriema
Opuntia ficus-indica (L.) Mill. is the Cactaceae plant with the greatest economic relevance in the world. The biologically active compounds isolated from plants are known to be efficient as antibacterial and antioxidants. The aim of this study was to determine the polyphenolic, profile and characterize the antioxidant capacity of seeds of Algerian prickly pear cultivar. The determination of total phenolic, flavonoid and tannin contents of Opuntia ficus-indica seeds were carried out by the Folin-Ciocalteu, the...

Phytochemical, antioxidant and antibacterial study of essential oils of the leaves and fruits of Juniperus Phoenicea

Extracts from aromatic and medicinal plants contain a variety of phenolic compounds as well as essential oils (EOs) which are believed to have antioxidant and microorganism inhibiting activities. Essential oils of leaves and fruits of Juniperus Phoenicea collected in the region of Midelt (Morocco) were obtained by the technique of hydrodistillation and analyzed by Gas Chromatography coupled to Mass Spectrometer (GC-MS). The yield of essential oil is variable depending on the part of the plant...

An insight on the corrosion inhibition of mild steel in aggressive medium by Solanum Tuberosum extract

Jihane SERBOUT, A. Bitari, Rachid Touzani, M Bouklah & Belkheir HAMMOUTI
This review investigates, the corrosion inhibitive action Acid extract of Solanum tuberosum was on mild steel in 1M hydrochloric acid (HCl) and H2SO4 media by weight loss measurements (WL) as chemical measurements and potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) as electrochemicals ones. The study indicates that as acid concentration increases corrosion rate increases. The corrosion inhibition efficiency increases with increase in concentration of extract. The obtained results reveal that acid extract of Solanum...

Essential oils value chain in Tunisian forests: Conflicts between inclusiveness and marketing performance

Ibtissem Taghoutia & Hamed Daly-Hassena
A Tunisian domestic market is emerging due to the opportunities created by the high value international markets for various essential oils (EO). However, many constraints have limited Tunisian exports, largely related to the weakness of the value chain and supply. The main objective of this study is to present the relationship between marketing mix strategies and the export marketing performance of exporting firms for different types of firms. Specifically, we pay attention to the importance...

Morphogenetic Variation for Essential Oil Content and Composition of Sage (Salvia officinalis L.) In Çukurova Condition

Tuncay ÇALIŞKAN, Hasan MARAL, Cemre PALA, Ebru KAFKAS & Saliha Saliha KIRICI
This study was carried out in 2016 in the Research Area of the Cukurova University Faculty of Agriculture Field Crops Research to determine the morphogenetic variation in yield and essential oil content and composition in Salvia officinalis L... Field trial was arranged randomized complete block design, with three replications. Seed of sage was sowing at December 17, 2015 in the greenhouse. Seedling was transferred to field at March 31, 2016. The plants were harvested on...

Determination of Sennosides A and B in Sudanese Medicinal Plant Senna alexandrina Pods and Leaves using Reverse-Phase High Performance Liquid Chromatography

Mohammed B Suliman & Awatif A Mohammed
Senna alexandrina pods and leaves have been used in herbal medicine since ancient times. The extracts of this plant contain mainly anthraquinone glycosides that have a significant laxative effect. In this study, the sennosides A and B, the major constituents of Senna alexandrina were calculated via a simple and accurate HPLC method. The yield of sennoside A was found 1.22 and 1.83% in the pods and leaves, respectively. Whereas the yield of sennoside B was...

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