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Mapping surface water erosion potential in the Soummam watershed in Northeast Algeria with RUSLE model

Journal of Mountain Science 2019年第7期16卷 1606-1615页

作者： Youcef SAHLI Elhadj MOKHTARI Belkacem MERZOUK Benoit LAIGNEL Christophe VIAL khodir madani Laboratory of Biomathematics BiophysicsBiochemistryand Scientometry(L3BS)Faculty of TechnologyUniversity ofBejaia06000 BejaiaAlgeria Department of Hydraulics Faculty of TechnologyUniversity of M'silaAlgeria UMR CNRS 6143 Continental and Coastal Morphodynamics Laboratory(M2C) University of RouenCedex 76821 Mont-Saint-AignanFrance University Clermont Auvergne CNRSSIGMA ClermontPascal InstituteF-63000 Clermont-FerrandFrance

The present study aims to estimate the annual soil loss in the Soummam watershed in the northeast of Algeria,using the Revised Universal Soil Loss Equation(RUSLE),geographic information system(GIS),and remote sensing(RS).RUSLE model has been used for modelling the main factors involved in erosive *** Soummam watershed covers a surface area of 9108.45 km^2 of irregular shape,northeast–southwest towards *** is characterized by an altitude varying between 2 m in the northeast and 2308 m in the *** showed that the average erosivity factor(R)is 70.64(MJ·mm)/(ha·h·year)and the maximum value reaches 140(MJ·mm)/(ha·h·year),the average soil erodibility factor(K)is 0.016(t·h·ha)/(MJ·ha·mm)and maximum values reach 0.0204(t·h·ha)/(MJ·ha·mm)in the southeast regions of the watershed,the average slope length and steepness factor(LS)is 9.79 and the mean C factor is estimated to be *** maps integration of different factors of RUSLE in GIS with their database,allowed with a rapid and efficient manner to highlight complexity and factors interdependence in the erosion risk *** resulting map for soils losses,with an average erosion rate of 6.81 t/(ha·year)shows a low erosion(<7.41 t/(ha·year))which covers 73.46%of the total area of the basin,and a medium erosion(7.42 to 19.77 t/(ha·year)),which represents 17.66%of the *** with extreme erosion risk exceeding 32.18 t/(ha·year)cover more than 3.54%of the basin *** results can certainly aid in implementation of soil management and conservation practices to reduce the soil erosion in the Soummam watershed.

关键词： Soummam watershed Soil erosion Revised Universal Soil Loss Equation Remote sensing Normalized Difference Vegetation Index

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Evaluation of In-vitro Antidiabetic and Hypolipidaemic Activities of Extracts Citrus Lemon Fruit

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Journal of Environmental Science and Engineering(A) 2016年第12期5卷 612-618页

作者： Abdelkader Basli Saida Younici Zahra Benkerrou Bachra Khettal khodir madani Research Laboratory of Biochemistry Biophysics Biomathematics and Scientometrics "L3BS" Faculty of Natural Sciences andLife University of Bejaia Bejaia 06000 Algeria Plant Biotechnology Laboratory and Ethnobotany Faculty of Natural Sciences and Life University of Bejaia Bejaia 06000Algeria

Citrus genus is the most important fruit tree crop in the world and lemon is the third most important Citrus species. The evaluation of the potential inhibitory activity on a-amylase and pancreatic lipase by Citrus lemon fruits of Algerian origin aiming for new applications of the fruits in nutrition and health was carried out. Lemon fruit EtOAc （ethyl acetate） extract showed higher contents of phytochemicals such as total phenolics and flavonoids. Furthermore, lemon fruit showed higher potential for inhibitory effects on a-amylase and pancreatic lipase. It could be concluded that lemon fruits are of great value for nutrition and treatment of diet-related diseases such as obesity and diabetes.

关键词： Diabetes flavonoids obesity polyphenols

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Algerian mint species:high performance thin layer chromatography quantitative determination of rosmarinic acid and in vitro inhibitory effects on linoleic acid peroxidation

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Journal of Coastal Life Medicine 2014年第12期 986-992页

作者： Brahmi Fatiha madani khodir Stévigny Caroline Chibane Mohamed Duez Pierre 13BS Laboratory Faculty of Natural Sciences and LifeUniversity of BejaiaBejaia 06000Algeria Laboratory of Pharmacognosy Bromatology and Human NutritionFaculty of PharmacyFree University of BelgiumCP 205-9B-1050 BrusselsBelgium Faculty of Natural Sciences and Life and Earth Sciences Akli Mohand Oulhadj UniversityBouira 10000Algeria Laboratory of Molecular Biology Institute of Health Sciences and TechnologyUniversity of Mons(UMONS)7000 MonsBelgium

Objective:To determine the quantitative paremeters of rosmarinic acid in Algerian mints,Mentha spicata L.(***),Mentha pulegium *** Mentha rotundifolia(L.)Huds by high performance thin layer chromatography(HPTLC)-densitometric method and screen the effects of these plant extracts on linoleic acid ***:The analyses were performed on HPTLC silica gel 60 F254 plates with chloroform:acetone:formic acid(75:16.5:8.5,v/v)as the mobile *** acid was determined in UV at 365 nm and fluorescence at λ_(exc)325 nm with a 550 nm filter,*** effects of plants extracts on linoleic acid peroxidation were measured by an indirect in vitro colorimetric ***:Chromatographic resolution permitted reliable quantification in both measurement modes and calibration curves were linear in a range of 150-1000 ng/*** was found to contain significantly higher concentrations of rosmarinic *** densitometric quantification allowed the analysis of many samples in a short time with reasonable precision(total precision for Mentha spp extracts,5.1%and 5.8%for UV and fluorescence detection,respectively).The HPTLC data,allied to assays of linoleic acid peroxidation prevention,suggested the potential of ***(52%Trolox®equivalents)as a natural source for inhibitors of lipid ***:Densitometry can be used for routine determination and quality control of rosmarinic acid in herbal and formulations containing Mentha species.

关键词： Densitometry High performance thin layer chromatography Lipid peroxidation Mentha sp Rosmarinic acid

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Recent advances in the identification and the study of composition and activities of medicinal plants

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Journal of Coastal Life Medicine 2016年第12期4卷 983-999页

作者： Fatiha Brahmi Sabiha Achat Naima Guendouze-Bouchefa Leila Benazzouz-Smail Mahmoud Fahmi Elsebai khodir madani 3BS Laboratory Faculty of Natural Sciences and LifeUniversity of BejaiaBejaia 06000Algeria Department of Pharmacognosy Faculty of PharmacyMansoura UniversityMansouraEgypt

Medicinal and aromatic plants are the foremost source of life economy drugs for the majority of the world’s *** plant metabolites are essential for life as drugs,fragrances,pigments and food *** study of plants is an inevitable step in the ethnopharmacological approach and it is the reference system since it allows sitting scientifically research that follows from of these new ***,the purpose of many scientists is to advance a new approach useful for identifying plants within a folk pharmacopoeia which deserve the increased research attention of phytochemists and *** the objective to study medicinal plants,usually we start by extraction of the bioactive compounds,which is an essential ***,new important extraction processes were elaborated to recover bioactive constituants from herbal plants by augmenting the yield at inferior *** approachs and methods used in isolation and characterization of active compounds from herbal preparations are also given according to their important ***,in the present work,an update on some biological activities properties of medicinal plants is reviewed.

关键词： Medicinal plants Botanical identification Extraction Analysis methods Biological activities

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POLYPHENOLS, CYTOTOXICITY AND ENZYMATIC ACTIVITIES OF THREE ERIACEAE SPECIES FROM ALGERIA

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World Journal of Traditional Chinese Medicine 2015年第4期1卷 90-90页

作者： Guendouze-Bouchefa Nama Brahmi Fatiha madani khodir Chibane Mohamed Kiendrebeogo Martin Stévigny Caroline Duez Pierre Laboratoire de Biomathématique Biochimie Biophysique et Scientometrie Faculté des Sciences de la Nature et de la Vie Université de Bejaia Laboratoire de Biochimie et Chimie Appliquées(LABIOCA) Université de Ouagadougou Laboratoire de Pharmacognosie Bromatologie et Nutrition Humaine Faculte de Pharmacie Université Libre de Bruxelles (ULB) Laboratoire de Chimie Thérapeutique et de Pharmacognosie Faculté de Médecine et de PharmacieUniversité de Mons (UMONS)

In Algerian traditional medicine,Erica arborea(EA),Erica multiflora(EM)and Arbutus unedo(AU)are reported as antiseptic,diuretic,astringent,depurative,and to treat scalds and *** methanolic extracts of their leaves and aerial parts were screened for enzyme inhibitory and cytotoxic *** and HPLC chromatographic profiles based on flavonoids allowed to easily distinguish between the three investigated ***

关键词： CYTOTOXICITY AND ENZYMATIC ACTIVITIES OF THREE ERIACEAE SPECIES FROM ALGERIA POLYPHENOLS EM

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PHENOLIC PROFILE, ANTIBACTERIAL,NEUROPROTECTIVE AND CYTOTOXIC PROPERTIES OF THREE ALGERIAN MENTHA SPECIES

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World Journal of Traditional Chinese Medicine 2015年第4期1卷 87-87页

作者： Brahmi Fatiha Guendouze Naima madani khodir PhillipeN.Okusa Martin Kiendrebeogo Kamagaju Léocadie Stévigny Caroline Chibane Mohamed Duez Pierre Laboratoire de Biomathématique Biochimie Biophysique et Scientom6trie Université de Bejaia Laboratoire de Pharmacognosie Bromatologie et Nutrition Humaine Université Libre de Bruxelles (ULB) Laboratoire de Biochimie et Chimie Appliquées (LABIOCA) UFR/SVT Université de Ouagadougou Faculté des Sciences de la Nature et de la Vie et Sciences de la Terre Université Akli Mohand Oulhadj Service de Chimie Thérapeutique et de Pharmacognosie Faculté de Medecine et de Pharmacie Université de Mons(UMONS)

This study was designed to evaluate the antibacterial(direct effect and reversal of antibiotics-resistance),neuroprotective(acetylcholinesterase and carboxylesterase inhibition)and cytotoxic(MTT assay on 2 human cancer cell lines)properties of three Mentha species[*** L.(MP),***(L.)Huds(MR),and *** L.(MS)]harvested in Bejaia(Algeria).The phenolic

关键词： MR MS PHENOLIC PROFILE ANTIBACTERIAL,NEUROPROTECTIVE AND CYTOTOXIC PROPERTIES OF THREE ALGERIAN MENTHA SPECIES

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