ProGRES

ARTICLE

Evaluation of the Effect of Germination on Phenolic Compounds and Antioxidant Activities in Sorghum Varieties

DICKO, Mamoudou. H., GRUPPEN, H., TRAORE, A. S.; van BERKEL, W. J. H. and VORAGEN, A. G. J.

The screening of 50 sorghum varieties showed that, on average, germination did not affect the content in total phenolic compounds but decreased the content of proanthocyanidins, 3-deoxyanthocyanidins, and flavan-4-ols. Independent of germination, there are intervarietal differences in antioxidant activities among sorghum varieties. Phenolic co(...)

Sorghum, , germination, ,antioxidan, ,proanthocyanidin, ,3-deoxyanthocyanidins, ,apigeninidins

ARTICLE

Photoacoustic Approach to Direct Determination of the Total Phenolic Content in Red Sorghum Flours

DOKA, O.; BICANIC, D. D.; Mamoudou H. DICKO and Slingerland, M. A.

Photoacoustic (PA) spectroscopy in the ultraviolet and visible was demonstrated to be a suitable tool for direct determination of total phenolic content in red sorghum flours. The PA spectra obtained feature two characteristic peaks: the first centered at 285 nm is due to the aromatic amino acids, while the second one at 335 nm is associated w(...)

Total phenolic content, ,sorghum

ARTICLE

Les Combretaceae du Burkina Faso: taxonomie, écologie, dynamique et régénération des espèces

A. THIOMBIANO

Les Combretaceae du Burkina Faso: taxonomie, écologie, dynamique et régénération des espèces

ARTICLE

Utilisations, état des peuplements et régénération de cinq espèces ligneuses utilitaires dans l’est du Burkina Faso

Amadé Ouédraogo, Adjima Thiombiano, Sita Guinko

La raréfaction des espèces à importance économique et les besoins croissants en produits végétaux constituent de nos jours des facteurs d'aggravation de la pression sur les espèces utilitaires. L'exploitation abusive est la cause majeure de la destruction de nombreuses espèces végétales (Ozenda 1982). Dans les conditions climatiques précaires(...)

Espèce menacée, Gradient climatique, Structure démographique

ARTICLE

Chemical composition and antibacterial activities of the essential oils of Lippia chevalieri and Lippia multiﬂora from Burkina Faso

I.H.N. Bassole , A.S. Ouattara , R. Nebie , C.A.T. Ouattara , Z.I. Kabore , S.A. Traore

The chemical composition of the essential oils of Lippia chevalieri and Lippia multiﬂora obtained from the air-dried leaves by hydrodistillation were analysed using GC and GC–MS. L. chevalieri and L. multiﬂora belonged to thymol/p-cymene/2-phenyl ethylpropionate and thymol/p-cymene/thymyl acetate chemotypes, respectively. The essential oils we(...)

Lippia chevalieri; Lippia multiﬂora; Verbenaceae; Essential oils; Antibacterial

ARTICLE

Antimalarial activity of Sida acuta Burm. f. (Malvaceae) and Pterocarpus erinaceus Poir. (Fabaceae)

KAROU, D., Mamoudou H. DICKO, Sanon, S., Jacques, SIMPORE, Traoré, A. S

Among strategies to combat malaria, the search for new antimalarial drugs appears to be a priority. Sheering for new antimalarial activities, four plants of the traditional medicine of Burkina Faso: Combretum micranthum, Khaya senegalensis, Pterocarpus erinaceus and Sida acuta, were tested in vitro on fresh clinical isolates of Plasmodium falc(...)

Malaria, ,Plasmodium falciparum, ,Sida acuta, , Pterocarpus erinaceus

ARTICLE

Pregnancy-associated glycoprotein concentrations during pregnancy and the postpartum period in Azawak Zebu cattle

Moussa Zongo, Were Pitala, Hamidou Boly, Laya Sawadogo, Jean-FrancËois Beckers , Noelita Melo de Sousa, Jose Ricardo de Figueiredo, Paulo Bayard Dias GoncËalves, Bouchra El Amiri, Zsolt PereÁnyi, Jean-FrancËois Beckers

RIA systems were developed and used to measure pregnancy-associated Glycoprotein (PAG) concentrations during gestation and the postpartum period in Azawak Zebu cows. Twelve females were palpated per rectum and diagnosed as pregnant. Blood samples were taken at 5±10-day intervals from approximately Week 8 of gestation until Week 10 postpartum ((...)

Azawak Zebu; PAG; RIA; Gestation; Postpartum

ARTICLE

Bosea minatitlanensis sp. nov., a strictly aerobic bacterium isolated from an anaerobic digester

Aboubakar S. Ouattara, Essokazi A. Assih, Sebastien Thierry, Jean-Luc Cayol, Marc Labat, Oscar Monroy and Herve´ Macarie

A strictly aerobic, mesophilic bacterium, strain AMX 51T, was isolated from anaerobic digester sludge. Cells were Gram-negative, motile, non-sporulating, straight to curved rods with one polar flagellum. The isolate had phenotypic traits of the genus Bosea, including cellular fatty acid and substrate utilization profiles. Physiological charact(...)

Bosea minatitlanensis sp. nov., strictly aerobic bacterium, anaerobic digester, cellular fatty acids, Mexico

ARTICLE

Caracteristiques morphologiques des roniers (Borassus L.) du Burkina Faso

Amade OUEDRAOGO Joseph BOUSSIM Jean-Didier ZONGO, Sita GUlNKO

Les travaux de ces dix demieres annees revelent l'existence d'au mains deux taxons specifiques ou subspecifiques de Borassus L. en Afrique de l'Ouest Toutefois Wat actuel des connaissances de leur diversire biologique reste precaire et confus. Desprospections et des collectes de mareriel biologique effectuees dans les peuplements de l'est et d(...)

Borassus, Burkina Faso, diversité, morphologie.

ARTICLE

Comparison of content in Phenolic compounds, polyphenol oxidases and peroxidases in grains of fifty sorghum varieties from Burkina Faso.

DICKO Mamoudou. H., HILHORST, R., GRUPPEN, H., TRAORE, A. S., LAANE, C., van BERKEL, W. J. H. and VORAGEN, A. G. J.

Analysis of fifty sorghum [Sorghum bicolor (L.) Moench] varieties used in Burkina Faso showed that they have different contents of phenolic compounds, peroxidase (POX), and polyphenol oxidase (PPO). Most of the varieties (82%) had a tannin content less than 0.25% (w/w). POX specific activity was higher than the monophenolase and o-diphenola(...)

sorghum, starch, amylose, amylopectin, amylase, β-amylase, phenolic compounds

ARTICLE

Zymography of Monophenolase and o-Diphenolase Activities of Polyphenol Oxidase

DICKO Mamoudou. H., HILHORST, R., GRUPPEN, H., LAANE, C., van BERKEL, W. J. H. and VORAGEN, A. G. J

A new procedure for the zymography of monophenolase and o-diphenolase activities of polyphenol oxidase (PPO), and peroxidase (POX) is proposed using a highly sensitive, chromogenic nucleophile 3-methyl-2-benzothiazolinone hydrazone (MBTH), which traps quinones. The procedure allowed the distinction between PPO isoenzymes from sorghum and mushr(...)

polyphenol oxidase, peroxidase, zymography, activity staining, isoenzymes, mushroom

ARTICLE

Comparison of the content of phenolic compounds, polyphenol oxidase and peroxidase in grains of fifty sorghum varieties

140. DICKO Mamoudou. H., HILHORST, R., GRUPPEN, H., TRAORE, A. S., LAANE, C., van BERKEL, W. J. H. and VORAGEN, A. G. J.

Analysis of fifty sorghum [Sorghum bicolor (L.) Moench] varieties used in Burkina Faso showed that they have different contents of phenolic compounds, peroxidase (POX), and polyphenol oxidase (PPO). Most of the varieties (82%) had a tannin content less than 0.25% (w/w). POX specific activity was higher than the monophenolase and o-diphenolase(...)

Phenolic compounds, ,tannins, ,polyphenol oxidase, ,peroxidase

ARTICLE

COMPOSITION CHIMIQUE ET ACTlVITES ANTIBACTERIENNES DES HUILES ESSENTIELLES DES FEUILLES ET DES FLEURS DE CYMBOPOGON PROXIMUS (STAPF.) ET D'OCIMUM CANUM (SIMS)

BASSOLE, I. H. N. ,OUATTARA A. S. ,NEBIE R ., OUATTARA, C. A. T ., KABORE, Z ., TRAORE, S.A

The chemical composition of the essential oils of Cymbopogon proximus and Ocimum canum obtained from the air-dried leaves and jlowers were analysed using GC and GC-MS Cymbopogon proximus leaves belonged to piperitone chemotype and Ocimum canum leaves andflowers belonged to 1,8-cineole (61,2 %) and le cis + trans piperitol (68,(...)

Cymbopogon proximus, Ocimum canum, Poaceae, Lamiaceae, essential oil, antibacterial activity

ARTICLE

Polysaccharide hydrolases from leaves of Boscia senegalensis

Mamoudou H. Dicko , M.J.F.Searle-van Leeuwen , R. Hilhorst , A. S. Traore , Riet Hilhorst , • Gerrit Beldman

The leaves of Boscia senegalensis are traditionally used in West Africa in cereal protection against pathogens, pharmacologic applications, and food processing. Activities of α-amylase, β-amylase, exo-(1→3, 1→4)-β-d-glucanase, and endo-(1→3)-β-d-glucanase were detected in these leaves. The endo-(1→3)-β-d-glucanase (EC3.2.1.39) was purified 203(...)

Polysaccharide , Boscia senegalensis , hydrolases

ARTICLE

Polysaccharide hydrolases from Boscia senegalensis: purification and characterization of endo-1,3-beta-glucanase

DICKO Mamoudou. H., Searle-van LEEUWEN, HILHORST, R., TRAORE, A. S. and Beldman, G.

The leaves of Boscia senegalensis are traditionally used in West Africa in cereal protection against pathogens, pharmacologic applications, and food processing. Activities of a-amylase, b-amylase, exo-(1®3, 1®4)-b-Dglucanase, and endo-(1®3)-b-D-glucanase were detected in these leaves. The endo-(1®3)-b-D-glucanase (EC 3.2.1.39) was purified 203(...)

a-Amylase, ,b-amylase, ,b-glucanase, ,yeast glucan, ,high-performance liquid chromatography, ,MALDI-TOF-MS

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