Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Lourivaldo S, Santos"'
Autor:
Reinaldo A. Santos, Antonio Pedro S Souza Filho, Antonio J. Cantanhede Filho, Giselle M. S. P. Guilhon, Lourivaldo S. Santos
Publikováno v:
Brazilian Journal of Food Technology, Vol 24 (2021)
Abstract Vigna unguiculata (L.) Walp (cowpea), Fabaceae family and also known as Leguminosae, is an important vegetable used as food in tropical regions, especially in Africa, South America and Asia countries. Phenolic compounds are associated with i
Externí odkaz:
https://doaj.org/article/c02cd97113544589b20a152089b431ab
Autor:
Haroldo da Silva Ripardo Filho, Luidi C. Pacheco, Edinaldo S. Andrade, Williams da S. Ribeiro, Giselle M. S. P. Guilhon, Marivaldo J. C. Corrêa, Oscar A. S. Romero, Lourivaldo S. Santos, Antonio Pedro da S. Souza Filho
Publikováno v:
Eclética Química, Vol 40, Iss 1, Pp 71-76 (2018)
This study aimed establish the variations in the phytotoxic activity of hexane, ethyl acetate and methanol extracts of Moutabea guianensis, and methyl caffeate and scopoletin isolated from the ethyl acetate extract, variyng the concentration and the
Externí odkaz:
https://doaj.org/article/0cca39ad848848709e837f2d29ee29cc
Autor:
Nayara F. Gomes, Manoel Leão L. Júnior, Antônio José C. Filho, Lourivaldo S. Santos, Luís Cláudio N. Silva, Edson Rodrigues-Filho
Publikováno v:
Records of Natural Products. :195-200
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bb629b99f2985a3fcaff1cfeee201bc
https://doi.org/10.25135/rnp.340.2202.2352
https://doi.org/10.25135/rnp.340.2202.2352
Autor:
Haroldo da S. Ripardo Filho, Luidi C. Pacheco, Edinaldo da S. Andrade, Marivaldo José C. Correa, Railda Neyva M. Araújo, Giselle Maria S. P. Guilhon, Joyce Kelly R. da Silva, Lourivaldo S. Santos
Publikováno v:
Molecules, Vol 20, Iss 1, Pp 127-134 (2014)
The phytochemical investigation of Moutabea guianensis roots led to the isolation of five polyoxygenated xanthones, including two new ones named moutabeone B (1,8-dihydroxy-4,5,6,7-tetramethoxyxanthone) and moutabeone C (1-hydroxy-4,5,6,7,8-pentameth
Externí odkaz:
https://doaj.org/article/feb56d07b0154ec1bcbf74906a580d39
Autor:
Haroldo da S. Ripardo Filho, Luidi C. Pacheco, Edinaldo da S. Andrade, Marivaldo José C. Correa, Gisele Maria S. P. Guilhon, Lourivaldo S. Santos
Publikováno v:
Molecules, Vol 19, Iss 7, Pp 8885-8889 (2014)
The ethyl acetate extract of the roots of Moutabea guianensis gave 1,6-dihydroxy-4,7,8-trimethoxy-9H-xanthen-9-one (1), a new xanthone. The isolation was accomplished by column chromatography on silica gel and the structural elucidation of this compo
Externí odkaz:
https://doaj.org/article/eaaf4c0f61e34a9587c77860bd6cb28c
Autor:
Eduardo A.A. Pinheiro, Josiwander M. Carvalho, Diellem C.P. dos Santos, Andre O. Feitosa, Patricia S.B. Marinho, Giselle Maria S.P. Guilhon, Lourivaldo S. Santos, Afonso L.D. de Souza, Andrey M.R. Marinho
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 85, Iss 4, Pp 1247-1253 (2013)
The present work reports the isolation of five compounds from Aspergillus sp EJC08 isolated as endophytic from Bauhinia guianensis, a tipical plant of the Amazon. The compounds ergosterol (1), ergosterol peroxide (2), mevalolactone (3), monomethylsul
Externí odkaz:
https://doaj.org/article/c66c8e5b065144918a1039e7d934af9f
Autor:
EWERTON A.S. DA SILVA, LIVIA T. LOBO, GEILSON A. DA SILVA, ANTONIO PEDRO DA S. SOUZA FILHO, MILTON N. DA SILVA, ALBERTO C. ARRUDA, GISELLE M.S.P. GUILHON, LOURIVALDO S. SANTOS, MARA S.P. ARRUDA
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 85, Iss 3, Pp 881-889 (2013)
In some previous studies, we described the isolation of nine compounds from leaves of Derris urucu, a species found widely in the Amazon rainforest, identified as five stilbenes and four dihydroflavonols. In this work, three of these dihydroflavonols
Externí odkaz:
https://doaj.org/article/f780fd28a59e4f46845f965bacf5bc55
Autor:
ANDREY M.R. MARINHO, PATRICIA S.B. MARINHO, LOURIVALDO S. SANTOS, EDSON RODRIGUES FILHO, IZABEL C.P. FERREIRA
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 85, Iss 3, Pp 909-912 (2013)
In this work we are reporting the isolation by classical methods of chromatography of six polyketides from Penicillium herquei. The compounds citreorosein ( 1) , emodin ( 2) , janthinone ( 3) , citrinin ( 4) , citrinin H1 ( 5) and dicitrinol ( 6) wer
Externí odkaz:
https://doaj.org/article/3f3c361c038f4897bc4c4b340712c7c4
Autor:
Lourivaldo S. Santos, Ana Paula T. Uetanabaro, Isabella S. Araújo, Maria das Graças B. Zoghbi, Giselle M. S. P. Guilhon, Rosana N. S. Peixoto, Davi do S. B. Brasil
Publikováno v:
Molecules, Vol 18, Iss 3, Pp 3195-3205 (2013)
Chemical investigation of Croton pullei (Euphorbiaceae) collected in the Brazilian Amazon region was revisited. The chemical composition of the essential oils of leaves and stems was analyzed by GC/MS. It was found that both the oils comprise mainly
Externí odkaz:
https://doaj.org/article/20190b415e2d486ea7370d5176583915
Autor:
Hellen Do Socorro de Araújo Silva, Dilsilene Baia Monteiro, Railda Neyva Moreira Araújo, Lourivaldo S. Santos, Manoel Leão Lopes Junior, Eder Jacson Dias Pereira
Publikováno v:
Revista Insignare Scientia-RIS; v. 3 n. 4 (2020): Edição especial: Dossiê Educação do Campo e suas Interfaces com o Ensino de Ciências; 102-123
Revista Insignare Scientia
Universidade Federal da Fronteira Sul (UFFS)
instacron:UFFS
Revista Insignare Scientia, Vol 3, Iss 4 (2020)
Revista Insignare Scientia
Universidade Federal da Fronteira Sul (UFFS)
instacron:UFFS
Revista Insignare Scientia, Vol 3, Iss 4 (2020)
Esta pesquisa analisa o ensino de Ciências na turma do 9º ano da escola Municipal de ensino fundamental, Maria Luíza Balieiro Soares, localizada na comunidade Tapará, no município de Oeiras do Pará. Configura-se como uma pesquisa de campo desti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75f95cfdca7c5dcbbd56017757e72e98
https://doi.org/10.36661/2595-4520.2020v3i4.11812
https://doi.org/10.36661/2595-4520.2020v3i4.11812