Komlan Batawila - Academia.edu (original) (raw)

Papers by Komlan Batawila

International Journal of Avian & Wildlife Biology

The wildlife habitats of the Mono River Basin (MRB) in Togo are increasingly fragmented under the... more The wildlife habitats of the Mono River Basin (MRB) in Togo are increasingly fragmented under the effect of anthropogenic threats, making wildlife even more vulnerable. This study aims at determining the endogenous knowledge of the vulnerability of the fauna of the MRB in Togo. Data were collected based on semi-structured ethnozoological surveys by individual and focus group interviews of 185 respondents, mostly hunters neighbouring the protected areas of the study area. The fauna reported was 65 species divided into 58 genera and 40 families from which 15 ungulates, nine (9) carnivores, six (6) turtles, and six (6) primates. At the local scale, 16.43% and 20.16% of the fauna was reported respectively as less available and rare. There are two (2) reported rare species highlighted based on the consensus value (CV): the waterbuck, Kobus ellipsiprymnus (CV=0.72) and the antelope, Hippotragus equinus (CV= 0.7) and two (2) less available species: the boa, Python sabae (CV=0,75); the red buffalo, Syncerus caffer nanus (CV=0.80). Among the species listed, 14 are vulnerable according to the IUCN classification criteria. They are: six (6) critically endangered (Cercopithecus erythrogaster ssp. erythrogaster, Colobus vellerosus, Cyclanorbis elegans, Erythrocoebus patas spp. patas, Kynixys homeana, and Loxodonta africana), three (3) endangered (Centrochelys sulcata, Lycaon pictus, and Phataginus tricuspis) and five (5) vulnerable (Aquila rapax, Crocodylus suchus, Kinixys belliana, Kinixya homeana, and Panthera leo). The completeness studies will give better appreciation of the so-called vulnerable/threatened species, namely their spatial distributions, the size of their population and the level of fragmentation of their habitat.

PLOS Neglected Tropical Diseases

Hyperreactive onchocerciasis (HO) is characterized by a severe skin inflammation with elevated Th... more Hyperreactive onchocerciasis (HO) is characterized by a severe skin inflammation with elevated Th17-Th2 combined responses. We previously demonstrated the anthelminthic activity of Aframomum melegueta (AM), Xylopia aethiopica (XA) and Khaya senegalensis (KS) used by traditional healers to treat helminthiasis in the endemic area of Togo. However, their effect on severe onchocerciasis is poorly investigated. The present study aimed to investigate the anti-Th17 and anti-Th2 effects of hydro-ethanolic extracts of AM, XA and KS during HO. Onchocerca volvulus-infected individuals were recruited in the Central region of Togo in 2018. Isolated peripheral blood mononuclear cells (PBMCs) from both generalized onchocerciasis (GEO) and HO forms were activated with anti-CD3 and anti-CD28 monoclonal antibodies in the presence or absence of the hydro-ethanolic extracts of AM, XA and KS as well as their delipidated, deproteinized and deglycosylated fractions. After 72 hours, cytokines were assayed ...

Journal de la Recherche Scientifique de l'Universite de Lome, 2006

Ethnobotanic survey was carried in eleven localities (10 villages and Guerin-Kouka town) in Dankp... more Ethnobotanic survey was carried in eleven localities (10 villages and Guerin-Kouka town) in Dankpen district (Bassar) on minor food plants threatened of disappearance. 67 minor food plants identified were sharing up in 16 families. Dioscoreaceae (16 local varieties), Poaceae (16 local varieties) and Fabaceae (15 local varieties) are the most significant families with crop plants (83.58%) and spontaneous woody plants (16.42%). Unequal partition of plants are distinguish in Possao (68.65%), Kloukpon (62.68%), Nandouta (41.79%) and Kpabol (32.83) villages. Men and women are concerned on plants management and plants transformation or produce sale is the work of women. Ecological and economic factors explain low fuel consumption of minor food plants. Under consumption is related to the changes of food practices which become less authentic in rural and urban localities. Consciousness-raising campaign on minor food plants nutritional values and management is necessary in district of Dankpen or in Togo.

AGROBIOLOGIA, Dec 30, 2018

OALib, 2021

The preservation of suburban agricultural land in the face of rapid urbanization in the West Afri... more The preservation of suburban agricultural land in the face of rapid urbanization in the West African region has been a major problem in recent decades. This paper examines the land tenure strategies used by farmers in relation to their assessments of the impact of urban growth. It is based on individual surveys conducted among farmers and landowners on the outskirts of the city of Lomé in Togo. This study reveals that perceptions differ according to gender and that women-although marginalized by customary land tenure-play an important role in maintaining suburban agricultural land. These women perceive the urbanization process as an opportunity for suburban agriculture, unlike men, and develop two local land tenure strategies that are favorable to the maintenance of suburban agriculture land.

BASE, 2020

Description du sujet. La baisse et l’irrégularité des pluies modifient considérablement les saiso... more Description du sujet. La baisse et l’irrégularité des pluies modifient considérablement les saisons culturales, ce qui oblige les paysans à une restructuration du calendrier agricole en s’appuyant sur les savoirs locaux. Objectifs. L’objectif de cette étude est de valoriser les savoirs locaux utilisés par les paysans dans la gestion du calendrier agricole. Les objectifs spécifiques sont, d’une part, d’inventorier les indicateurs biophysiques utilisés dans la définition des calendriers culturaux et, d’autre part, de déterminer les espèces végétales repères communes aux trois zones écologiques étudiées. Méthode. Ce but fut atteint grâce à des interviews semi-directes individuelles et via des focus groups auprès d’un échantillon de 689 agriculteurs répartis dans 65 localités. Résultats. Il ressort que la totalité des paysans enquêtés utilisent des marqueurs temporels dans la définition des calendriers culturaux, surtout dans la reconnaissance des débuts de saison pluvieuse (période de ...

Bois Et Forets Des Tropiques, 2009

La presente etude menee dans la foret communautaire d’Edouwossi-cope creee depuis 1993 est une co... more La presente etude menee dans la foret communautaire d’Edouwossi-cope creee depuis 1993 est une contribution a la gestion durable des forets communautaires au Togo. Elle a evalue l’evolution des paysages dans la foret communautaire d’Edouwossi-cope en relation avec le changement d’occupation des sols. La demarche methodologie a consiste en une cartographie evolutive de l’occupation du sol a partir des images satellitaires (1987 et 2000) et de l’image Google Earth (2014) de resolution spatiale respective de 30 m et 1,5 m. L’analyse des differentes classes montre que la zone est confrontee a un processus de degradation alarmant surtout au cours des dernieres annees. Ce processus se caracterise par la transformation des forets denses et des forets claires en savanes arborees et arbustives et en parcs agroforestiers. Les causes de cette dynamique sont surtout d’origine anthropique notamment la surexploitation des ressources naturelles, l’agriculture itinerante sur brulis et les feux de b...

Biotechnologie, Agronomie, Société et Environnement, 2015

Description du sujet. Une etude ethnobotanique a ete realisee en 2010 et 2011 a travers tout le t... more Description du sujet. Une etude ethnobotanique a ete realisee en 2010 et 2011 a travers tout le territoire togolais sur les connaissances ethnobotaniques du baobab (Adansonia digitata L.).Objectifs. L’objectif de cette etude est de contribuer a la conservation de l’espece et a la valorisation de ses produits. Specifiquement, il s’agit de (i) evaluer la variation des connaissances endogenes des usages du baobab suivant les ethnies, le sexe, l’âge, la religion et la profession et (ii) determiner la convergence d’usage interethnique de differentes parties de l’espece.Methode. La collecte des donnees est basee sur des enquetes ethnobotaniques semi-structurees par interviews individuelles et par focus group de 205 series d’enquetes pour 712 personnes appartenant a 16 ethnies. L’evaluation de la connaissance s’est basee sur quatre indices d’utilisation : le nombre d’usages rapportes par partie de la plante, la valeur d’usage de la partie de la plante, l’usage specifique et la valeur d’usa...

Revue Marocaine des Sciences Agronomiques et Vétérinaires, 2017

Sterculia setigera Del. is well-known in Sub-Saharan Africa as a multipurpose tree species, espec... more Sterculia setigera Del. is well-known in Sub-Saharan Africa as a multipurpose tree species, especially due to the economic value of its gum. The present study carried out in the Kantindi experimental station was a contribution to the valorisation of S. setigera in Togo. It sought to appraise the gum yield capacity of S. setigera according to stem girth and target trees’ status. Trees tapping were realized on forty bearings non-burnt and twelve burnt trees with a girth equal or greater than 90 cm. Trees were tapped from 1 to 5 April 2014 and the harvest-time occurred three weeks later, 30 th April 2014. The m ean value of gum exudate from trees early burnt is higher than those obtained from non-burnt trees, respectively 103.25 ± 68.54 g and 64.44 ± 35.32 g. It increases with an increase in diameter. Even thought, the mean gum yield seems greater on burnt trees than non-burnt trees; the statistic tests showed no significant difference (p = 0.095). In contrast there is a significant di...

Candida albicans est a l'origine de frequentes infections, en particulier chez les enfants et... more Candida albicans est a l'origine de frequentes infections, en particulier chez les enfants et les personnes âgees. Des etudes ont montre au Togo que beaucoup d’infections de nourrissons par cette levure se declaraient a domicile avec une forte proportion de deces. Il existerait a la maison des reservoirs, gites de C. albicans pourvoyeurs de souches a l’origine des cycles de diarrhee et autres affections a C. albicans . Nos investigations sur 669 animaux montrent que la plupart des animaux examines [chiens (39,47%), lapins (36,17%), moutons (31,42%), canards (23,21%), chevres (13,17%), poulets (6,35%)] ont une frequence de portage proche ou superieure a celui de l'Homme (15 a 30%). Ces resultats renforcent les suppositions tendant a considerer les animaux domestiques comme reservoirs a C. albicans, sources de contamination et surtout de renouvellement des souches. Mots cles : Animaux domestiques, Candida albicans, Portage, Togo. English Abstract Candida albicans causes freque...

BMC Complementary Medicine and Therapies, 2020

BackgroundTraditional medicines are the main source of treatment of helminthiasis in endemic area... more BackgroundTraditional medicines are the main source of treatment of helminthiasis in endemic areas of Togo. The present study aimed to investigate the plants used by Traditional healers (THs) to treat helminth infections in endemic communities within the Central and Kara regions of Togo and to evaluate the anthelmintic activity of the three most cited plants.MethodsAn ethnobotanical survey was conducted from 19 to 24 June 2017 among traditional healers in the Central and Kara regions of Togo. The anthelmintic activity of the most cited plants namelyAframomum meleguetaK. Schum,Khaya senegalensisA. Juss andXylopia aethiopicaA. Rich, was evaluated using microfilariae (Mf) ofLitomosoides sigmodontis. The plants were evaluated for cytotoxicity according to the recommendation of NF EN ISO 10993-5 standard using the propidium iodide (PI) dye by flow cytometry on human peripheral blood mononuclear cells.ResultsA total of 197 THs were interviewed and 41 plant species were recorded. Leguminos...

European Journal of Medicinal Plants, 2019

Aim: Plants are a great source of active substances and are used to cure a lot of diseases. In or... more Aim: Plants are a great source of active substances and are used to cure a lot of diseases. In order to know and list medicinal plants used by traditional therapists and herbalists from the town of Atakpamé, an ethnobotanical investigation has been conducted. Methodology: It is a transversal and descriprtive study that has been carried out from 22th December 2018 to 16th March 2019. Results: It has been conducted nearby 10 traditional therapists and 20 herbalists by direct interviews using a structured questionnaire. The traditional therapists were all men and the herbalists all women. This study has enabled to list 61 species belonging to 30 families grouped into 56 genera, used in the treatment of 30 affections and symptoms. The botanical families more represented were Euphorbiaceae with 8 species, Caesalpiniaceae and Apocynaceae with 5 species each. The most used organs in the recipes are leaves (44,26%). The decoction (47,54%) is the most used mode of preparation. The oral route...

Phytochemistry Letters, 2019

The popular use of Pterocarpus erinaceus as antimicrobial prompted us to study the antifungal pro... more The popular use of Pterocarpus erinaceus as antimicrobial prompted us to study the antifungal properties of its bark, leaves and roots against Candida albicans, Aspergillus fumigatus, and Aspergillus niger. Thus, the broth microdilution method was used to perform the test and only the root extract showed significant antifungal activity against A. fumigatus with value at MIC 16 μg/mL. This root extract was further partitioned by immiscible liquidliquid extraction into five fractions. Successive chromatographic columns were used for the purification of the organic fractions which led to the isolation and the identification of five compounds including two new (3 and 5) and three known (1, 2, and 4). Their structures were established as muningin 1, the mixture of formononetin and pseudobaptigenin 2, boutotone 3, isoliquiritigenin 4, and boutomycone 5, by the mean of spectroscopic data compared to those reported in the literature. Compounds 1-5 were also tested on A. fumigatus against which 1, 2, and 5 showed antifungal effects with MIC values at 853.3, 28.7, and 452.3 μM, respectively. The obtained results indicated that the traditional use of this plant as antimicrobial could be related to its roots.

$Research paper thumbnail of Antibacterial activity and cytotoxicity of Pterocarpus erinaceus Poir extracts, fractions and isolated compounds$

Journal of ethnopharmacology, Jan 15, 2018

Pterocarpus erinaceus has been chosen based on ethnobotanical surveys carried out in the Tchamba ... more Pterocarpus erinaceus has been chosen based on ethnobotanical surveys carried out in the Tchamba district of the Republic of Togo. Investigation of the antibacterial as well as cytotoxic activities of whole extracts, fractions and compounds isolated from the leaves, trunk bark and roots of Pterocarpus erinaceus. Bio-guided fractionation of the raw extracts of plant parts and subsequent isolation of compounds from active fractions using normal phase open column chromatography. The broth microdilution method was used to evaluate the antibacterial activity, based on the determination of Minimal Inhibitory Concentrations (MICs) against several bacterial species representative of the most commonly encountered infectious diseases worldwide. The cytotoxicity of the raw extract and the most active fractions on a human non-cancerous cell (namely MRC-5) was estimated with a MTT assay. The chemical structure of the compounds isolated was elucidated using a combination of advanced Nuclear Magne...

African Journal of Environmental Science and Technology, 2012

All intensive agriculture, like periurban agriculture, uses massive inputs such as agrochemicals.... more All intensive agriculture, like periurban agriculture, uses massive inputs such as agrochemicals. This study aims to assess the environmental impacts of agrochemical use in periurban agriculture in Togo. It was based on the chemical analyses of soil, water and vegetable samples. These analyses were carried out by gas chromatography on extracts from soil, water and vegetable samples. In soil samples, the concentrations of pesticide residues are lower than 20 µg/kg of dry material. For water samples, contamination levels vary from 0.02 to 1.1 µg/L of dry material with the highest levels for metalaxyl M (1.1 µg/L) and for dimethoate (1 µg/L). In vegetables, the concentrations measured are between 0.01 and 0.1 mg/kg of dry material. All these concentrations are affected by a positive factor of the maximum limits of residues. These agrochemicals, coupled with periurban environmental management led to the high concentrations of trace elements. Lead and cadmium concentrations in water are 10 and 21 times respectively higher than the maximum concentration allowable for drinking water by the WHO. The study showed that inappropriate use of agrochemicals in Togolese periurban agriculture creates ecological disturbances that could affect produce quality.

African Journal of Agricultural Research, Jun 18, 2011

ABSTRACT The surrender and no juridical statute areas of Northern Togo protected areas were subje... more ABSTRACT The surrender and no juridical statute areas of Northern Togo protected areas were subjected to forest inventory. The data obtained was analyzed after ethnobotanical investigation. The research was conducted in order to determine available forest agroforestry species. It is also aimed to assess and to determine their roles and functions; and to characterize the potential parkland of these areas. The 118 forest samples were processed floristically .Then, Ward method was used through the hierarchical clustering to cluster them into the main group. The agroforestry species sorted after ethnobotanic survey, were analyzed base on the information collected. The results showed that fifty plant species were recorded, among which twenty nine are agroforestry species. The Combretaceae and Leguminous are both the most frequent and the abundant families in the areas. The common agroforestry species still are Vitellaria paradoxa, Parkia biglobosa, Lannea kerstingii, Vitex doniana, Ficus gnaphalocarpa, Sterculia setigera, Tamarindus indica and Adansonia digitata. Four potential agroforestry parklands were found. Parks 2 and 3 present the aspect of regular parkland while the two others include some old fallows and shrubby savanna. The results of this study also show that apart from the frequently quoted agroforestry species, there are also many species which are important for the farmers.

Science De La Vie De La Terre Et Agronomie, Jul 4, 2014

Moringa oleifera Lam., arbre tropical, courant en Afrique est passe en une decennie du statut de ... more Moringa oleifera Lam., arbre tropical, courant en Afrique est passe en une decennie du statut de plante marginale a celui de nouvelle ressource alimentaire et economique. Differentes proprietes sont conferees aux organes de la plante. La presente etude qui s’est deroulee dans la ville de Lome (Region maritime, Togo) a pour objectif de contribuer a la meilleure connaissance des differentes vertus de M. oleifera dans la ville de Lome dans une optique de valorisation de la ressource. La methode utilisee est basee sur des enquetes ethnobotaniques sous forme d’interviews individuelles semi-structurees de 113 personnes dont 41 menagers, 35 fonctionnaires d’officines, 26 commercants, et 11 traditherapeutes utilisant M. oleifera ou des produits a base de M. oleifera . Les resultats montrent que M. oleifera est une plante a usage multiple reconnue et utilisee par la population de Lome. Les feuilles, les graines, les racines, l’ecorce lui conferent de nombreuses proprietes therapeutiques. La plante est plus utilisee dans le traitement de l’hypertension arterielle, le diabete, et les maladies infectieuses. Les feuilles ont une grande valeur nutritionnelle exceptionnelle et interviennent dans la lutte contre la malnutrition. Mis a part ces vertus, les tourteaux des graines ont des proprietes purificatrices de l’eau. La plupart des resultats rapportes ont ete confirmes par les donnees scientifiques justifiant ainsi son utilisation en medecine traditionnelle mais d’autres usages, en particulier les usages medicinaux ne sont pas encore valides scientifiquement. Ainsi la presente etude devrait se completer par d’autres etudes phytochimique et pharmacologiques.

Pharmaceutics, 2016

Numerous plants are known to exhibit considerable biological activities in the fields of medicine... more Numerous plants are known to exhibit considerable biological activities in the fields of medicine and agriculture, yet access to their active ingredients is often complicated, cumbersome and expensive. As a consequence, many plants harbouring potential drugs or green phyto-protectants go largely unnoticed, especially in poorer countries which, at the same time, are in desperate need of antimicrobial agents. As in the case of plants such as the Jericho tomato, Solanum incanum, and the common African tree Pterocarpus erinaceus, nanosizing of original plant materials may provide an interesting alternative to extensive extraction and isolation procedures. Indeed, it is straightforward to obtain considerable amounts of such common, often weed-like plants, and to mill the dried material to more or less uniform particles of microscopic and nanoscopic size. These particles exhibit activity against Steinernema feltiae or Escherichia coli, which is comparable to the ones seen for processed extracts of the same, respective plants. As S. feltiae is used as a model nematode indicative of possible phyto-protective uses in the agricultural arena, these findings also showcase the potential of nanosizing of crude "waste" plant materials for specific practical applications, especially-but not exclusively-in developing countries lacking a more sophisticated industrial infrastructure.