Results 31 to 40 of about 5,922 (200)

Standardization of the bio-active compounds (rotenoids) from the extract of local plant species (derris elliptica) using the internal standard method of high performance liquid chromatography (HPLC) [PDF]

, 2005
It is well known now that some plant species represent an efficient factory of chemicals, which are manufactured and used as bio-weapons against pest attacks. Extensive work has been done during the last few decades on these potentially useful compounds.
M. R., Sarmidi, R. A., Aziz, Saiful Irwan, Zubairi   +2 more
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Anti-Trypanosoma cruzi activity, cytotoxicity and, chemical characterization of extracts from seeds of Lonchocarpus cultratus

Journal of Infection in Developing Countries, 2021
Introduction: Trypanosoma cruzi is the agent of Chagas’ disease and affects approximately 6-8 million people worldwide. The search for new anti-T. cruzi drugs are relevant because only two drugs exist actually.
Aline Griebler, Fernanda Weyand Banhuk, Izabela Virginia Staffen, Aline Antunes Maciel Bortoluzzi, Thaís Soprani Ayala, Rinaldo Ferreira Gandra, Ivânia Teresinha Albrecht Schuquel, Edson Antonio Alves da Silva, Tereza Cristina Marinho Jorge, Rafael Andrade Menolli   +9 more
doaj   +1 more source

Flavonoids from two Lonchocarpus species of the Yucatan Peninsula [PDF]

Phytochemistry, 2002
Leaves, stem bark and root of Lonchocarpus xuul and Lonchocarpus yucatanensis were studied separately. A chalcone, 2',4-dimethoxy-6'-hydroxylonchocarpin (), and the flavones 5,4'-dihydroxy-3'-methoxy-(6:7)-2,2-dimethylpyranoflavone (2) and 5,4'-dimethoxy-(6:7)-2,2-dimethylpyrano-flavone (3), together with the known carpachromene (4), were isolated from
Borges-Argaez, Rocio, Pena-Rodriguez, Luis M, Waterman, Peter G   +2 more
openaire   +5 more sources

Is interlocked grain an adaptive trait for tropical tree species in rainforest? [PDF]

, 2009
Many trees in tropical rain forest exhibit interlocked grain. This phenomenon was observed, using a splitting method, on 10 trees from different genera in French Guiana. There were rather strong variations between and within trees. Different indexes were
Beauchêne, Jacques, Cabrolier, Pierre, Thibaut, Bernard   +2 more
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Flavonoids of Lonchocarpus montanus A.M.G. Azevedo and biological activity [PDF]

Anais da Academia Brasileira de Ciências, 2007
The analysis of root extracts from Lonchocarpus montanus A.M.G. Azevedo resulted in the isolation of twenty three compounds chiefly flavonoids of which five (four flavonoids and one benzophenone) are described for the first time. The molecular structures of the new compounds (1-5) were determined through spectral analysis (UV, IR, MS and NMR) as being:
Magalhães, Aderbal F., Tozzi, Ana Maria G.A., Magalhães, Eva G., Sannomiya, Miriam, Soriano, Maria del Pilar C., Perez, Mary A.F.   +5 more
openaire   +5 more sources

STANDLEYI UNA NUEVA SECCIÓN DEL GÉNERO LONCHOCARPUS (LEGUMINOSAE), NUEVAS ESPECIES Y SUBESPECIE PARA MESOAMÉRICA Y SUDAMÉRICA

Acta Botanica Mexicana, 2009
Se describe una nueva sección, sect. Standleyi, para el género Lonchocarpus (Leguminosae, Papilionoideae, Millettieae) basada en forma esencial en conceptos propuestos con anterioridad, pero no válidamente publicados. También se describen e ilustran seis
Mario Sousa S.
doaj  

Photovoltaic performance of semi-pure and crude dye extracts from the leaf of Lonchocarpus cyanescens as natural sensitizer for dye-sensitized solar cell (DSSC)

Next Energy
In this study, the natural dye was extracted from Lonchocarpus cyanescens (LC), and both the crude and semi-pure extracts were used as sensitizers for dye-sensitized solar cells (DSSCs).
Moriamo O. John, Chukwuemeka Isanbor, Taofeek B. Ogunbayo, Muteeu A. Olopade, Ikechukwu P. Ejidike, Alice I. Babatunde, Solomon A. Olaleru, Joseph A.O. Olugbuyiro, Samson O. Alayande, Titus A.M. Msagati   +9 more
doaj   +1 more source

El género Deguelia (Leguminosae, Papilionoideae, Millettieae) en Mesoamérica, una especie nueva y una combinación nueva

Revista Mexicana de Biodiversidad, 2009
Se presenta una revisión taxonómica del género Deguelia Aubl. (Millettieae: Leguminosae) para Mesoamérica; para ello fue necesario describir e ilustrar a una nueva especie, Deguelia alata M. Sousa y proponer una nueva combinación, D. densiflora (Benth.).
Mario Sousa S.
doaj   +1 more source

C10- Traitement du diabète et de l’hypertension artérielle par des tradipraticiens au Sénégal : ressources et formes d’administration

Journal Africain de Technologie Pharmaceutique et Biopharmacie, 2023
Introduction. L’étude entre dans le cadre de valorisation des ressources de la pharmacopée africaine. Elle visait le recensement de plantes utilisées dans de la région de Thiès, centre du Sénégal, pour traiter le diabète et l'hypertension artérielle.
Ahmedou Bamba Koueimel Fall, Moussa Diop, Mouhamed Sidy Dieng, Saer Diallo, Oumar Thioune   +4 more
doaj   +1 more source

Apionidae from North and Central America : 6. Description of new species of Apionion Kissinger, Coelocephalapion Wagner and Trichapion Wagner (Coleoptera) [PDF]

, 1999
Two new species of Trichapion Wagner, T. baranowskii and T. santaritae, are described from Madera Canyon, near Tucson, Arizona. Six new species of Coelocephalapion Wagner are described: C. dilox (Mexico), C.
Kissinger, David G.
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