scholarly journals REMOVAL OF CUPRIC IONS IN AQUEOUS SOLUTION BY ADSORPTION ON BARKS OF DACRYODES EDULIS AND MANGIFERA INDICA.

2017 ◽  
Vol 5 (8) ◽  
pp. 1418-1425
Author(s):  
Martin Tchoumou ◽  
◽  
KimbassaMahoungouFréderic Guenol ◽  
Mouelet Cédric ◽  
◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Mangifera Indica ◽  
Dacryodes Edulis

APPLICATION OF Mangifera indica SEED SHELL FOR EFFECTIVE ADSORPTION OF Fe(II) AND Mn(II) FROM AQUEOUS SOLUTION

2015 ◽  
Vol 14 (4) ◽  
pp. 919-924 ◽  
Author(s):  
Tikaram D. Kose ◽  
Ashok Gharde ◽  
Namdeo Meshram ◽  
Bapurao Gharde ◽  
Suresh Gholse
Keyword(s):  
Aqueous Solution ◽  
Mangifera Indica

scholarly journals Ants Associated to Loranthaceae in an Agroecosystem Based on Cocoa Trees in Nkolbisson (Yaounde: Cameroon)

2019 ◽  
Vol 11 (8) ◽  
pp. 90
Author(s):  
Sandrine Jueya ◽  
Ruth Mony ◽  
Champlain Djieto-Lordon
Keyword(s):  
Theobroma Cacao ◽  
Potential Role ◽  
Forest Type ◽  
Mangifera Indica ◽  
Woody Species ◽  
Abundant Species ◽  
Agricultural System ◽  
Dacryodes Edulis ◽  
Cocoa Tree ◽  
Dominant Ant

The present study was carried out in order to identify the ant fauna and her potential role as auxiliary of an agricultural system based on cocoa trees leeched by Loranthaceae, in Nkolbisson neighborhood in Yaoundé (Cameroon). The work was conducted from May to September 2015. An inventory of all woody species and the associated ant fauna was carried out beforehand, followed by an inventory of the ant fauna associated couples Theobroma cacao/Loranthaceae during periods of non-flowering, flowering and fruiting Loranthaceae. We inventoried a total of 187 plants of which 44 (23.53%) were parasitized by flowering-shrub epiphytes (Loranthaceae). Theobroma cacao (cocoa) appeared to be the most abundant species (122 plants) followed by Dacryodes edulis (16 safou trees) and Mangifera indica (15 mango trees). Three species of Loranthaceae were identified: Tapinanthus preussii (Engler) Van Tieghem and Phragmanthera capitata (Sprengel) S. Balle which both attack Theobroma cacao (cocoa tree) and Tapinanthus bangwensis (Engl.et. Krause) Denser which attacks mainly forest type trees. Five sub-families of ants (Pseudomyrmicinae, Dolychoderinae, Ponerinae, Formicinae and Myrmicinae) divided into 16 genera and 35 species were recorded throughout the agrosystem. Tetramorium acculeatum has emerged as the most dominant ant species on both T. preussii and P. capitata. Monitoring of the ant foraging activity during flowering and fruiting Loranthaceae shows they participate in the flowers fall.

Chromium (VI) remediation in aqueous solution by waste products (peel and seed) of mango (Mangifera indica L.) cultivars

2019 ◽  
Vol 26 (6) ◽  
pp. 5588-5600 ◽  
Author(s):  
Caroline De Goes Sampaio ◽  
Juliana Gaspar Alan E Silva ◽  
Edy Sousa De Brito ◽  
Helena Becker ◽  
Maria Teresa Salles Trevisan ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Mangifera Indica ◽  
Waste Products ◽  
Chromium Vi

scholarly journals Removal of Dyes from Aqueous Solution by Adsorption on Biomass of Mango (Mangifera Indica) Leaves

2010 ◽  
Vol 7 (3) ◽  
pp. 669-676 ◽  
Author(s):  
T. Murugan ◽  
A. Ganapathi ◽  
R. Valliappan
Keyword(s):  
Aqueous Solution ◽  
Mangifera Indica ◽  
Experimental Conditions ◽  
Freundlich Model ◽  
Experimental Parameters ◽  
Initial Ph ◽  
Adsorption Processes ◽  
Leaf Powder ◽  
Rate Kinetics ◽  
Mango Leaves

The potential feasibility of mango leaves powder (MLP) (Mangifera indica) for removal of dye (Grey BL) from aqueous solution was investigated. The effects of various experimental parameters were examined and optimal experimental conditions were decided. Above the value of initial pH 7, the dye studied could be removed effectively. The isothermal data fitted the Langmuir model or Freundlich model. The adsorption processes followed the pseudo-first-order rate kinetics. The results in this study indicated that mango leaf powder (MLP) was an attractive candidate for removing dye from dye wastewater.

Application of Mangifera indica (mango) seeds as a biosorbent for removal of Victazol Orange 3R dye from aqueous solution and study of the biosorption mechanism

2012 ◽  
Vol 209 ◽  
pp. 577-588 ◽  
Author(s):  
Wagner S. Alencar ◽  
Elie Acayanka ◽  
Eder C. Lima ◽  
Betina Royer ◽  
Felipe E. de Souza ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Mangifera Indica ◽  
Biosorption Mechanism

scholarly journals Valeurs d’usage des ligneux utilisés en agroforesterie : les cacaoyères du Centre-Cameroun

2014 ◽  
Vol 321 (321) ◽  
pp. 45 ◽  
Author(s):  
Patrick Jagoret ◽  
Jacques Kwesseu ◽  
Charly Anicet Messie ◽  
Isabelle Michel ◽  
Éric Malézieux
Keyword(s):  
Elaeis Guineensis ◽  
Mangifera Indica ◽  
Persea Americana ◽  
Zone Tropicale ◽  
Palmier À Huile ◽  
Terminalia Superba ◽  
Albizia Adianthifolia ◽  
Dacryodes Edulis

En zone tropicale humide, la valeur des systèmesagroforestierspour lesagriculteurs est souvent difficile à évaluer. À partir d’un inventaire floristique réalisé dans 14 cacao- yères agroforestières du Centre-Cameroun, l’article propose leur évaluation participative basée sur la méthode de distribution des cailloux mobilisée pour quantifier la valeur accordée par les agriculteurs à chaque espèce en fonction des usages attribués. Au total, 86 espèces ligneuses ont été inventoriées. Les cinq espèces les plus fré- quentes ont été le safoutier, Dacryodes edulis, avec 18 % des arbres inventoriés, l’avocatier, Persea americana,  avec  11 %, le fraké, Terminalia superba, avec 10 %, le figuier, Ficus mucoso, avec 5 %, et Albizia adianthifolia, avec 3 %. Vingt-deux espèces (26 %) n’ont eu aucun usage pour les agri- culteursqui ont défini sept usagesdifférents pour lesautresespècesinventoriées. Parmi cesespèces, la valeur d’usage la plusélevée a été attribuée au cacaoyer (20 %). Ensuite, par ordre décroissant, les cinq espèces qui ont eu les valeurs d’usage les plus élevées ont été l’ayous, Triplochyton scleroxylon, le sapelli, Entandrophragma cylindricum, le safoutier, Dacryodes edulis, le palmier à huile, Elaeis guineensis, et le manguier, Mangifera indica. Le profil d’usage des cacaoyères a montré qu’elles sont princi- palement pilotées par les agriculteurs pour la vente de produits ligneux et non ligneux, l’autoconsommation de produitsnon ligneux et de produits médicinaux. Les résultats indiquent que les innovations techniques visant à améliorer lessystèmesagroforestiers cacaoyersdoivent tenir compte de leur com- plexité et de leur plurifonctionnalité.

Structures Formed by Cryoprotective Agents Used in Freezc-Etching

1971 ◽  
Vol 29 ◽  
pp. 448-449
Author(s):  
G. G. Cocks ◽  
C. E. Cluthe
Keyword(s):  
Aqueous Solution ◽  
Polyethylene Oxide ◽  
Liquid Nitrogen Temperature ◽  
Ice Crystals ◽  
Etching Technique ◽  
Structural Constituent ◽  
Cryoprotective Agents ◽  
Quick Freezing ◽  
Freeze Etching ◽  
Fractured Surface

The freeze etching technique is potentially useful for examining dilute solutions or suspensions of macromolecular materials. Quick freezing of aqueous solutions in Freon or propane at or near liquid nitrogen temperature produces relatively large ice crystals and these crystals may damage the structures to be examined. Cryoprotective agents may reduce damage to the specimem, hut their use often results in the formation of a different set of specimem artifacts.In a study of the structure of polyethylene oxide gels glycerol and sucrose were used as cryoprotective agents. The experiments reported here show some of the structures which can appear when these cryoprotective agents are used.Figure 1 shows a fractured surface of a frozen 25% aqueous solution of sucrose. The branches of dendritic ice crystals surrounded hy ice-sucrose eutectic can be seen. When this fractured surface is etched the ice in the dendrites sublimes giving the type of structure shown in Figure 2. The ice-sucrose eutectic etches much more slowly. It is the smooth continuous structural constituent surrounding the branches of the dendrites.

Preparation and characterisation of vanadium pentoxide supported rhodium catalyst

1988 ◽  
Vol 46 ◽  
pp. 946-947
Author(s):  
A. Legrouri
Keyword(s):  
Aqueous Solution ◽  
Thermal Decomposition ◽  
Physicochemical Properties ◽  
Surface Area ◽  
Vanadium Pentoxide ◽  
High Purity ◽  
Gas Adsorption ◽  
Rhodium Catalyst ◽  
Optical Methods ◽  
Reducible Oxides

The industrial importance of metal catalysts supported on reducible oxides has stimulated considerable interest during the last few years. This presentation reports on the study of the physicochemical properties of metallic rhodium supported on vanadium pentoxide (Rh/V2O5). Electron optical methods, in conjunction with other techniques, were used to characterise the catalyst before its use in the hydrogenolysis of butane; a reaction for which Rh metal is known to be among the most active catalysts.V2O5 powder was prepared by thermal decomposition of high purity ammonium metavanadate in air at 400 °C for 2 hours. Previous studies of the microstructure of this compound, by HREM, SEM and gas adsorption, showed it to be non— porous with a very low surface area of 6m2/g3. The metal loading of the catalyst used was lwt%Rh on V2Q5. It was prepared by wet impregnating the support with an aqueous solution of RhCI3.3H2O.

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