Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Mario Geraldo de Carvalho"'
Autor:
Alexandre Mehl Lunz, Acacio Geraldo de Carvalho, Alessandre Custódio Jorge, Mario Geraldo de Carvalho, Mário Sérgio da Rocha Gomes
Publikováno v:
Floresta e Ambiente, Vol 14, Iss 1, Pp 6-13 (2023)
Resumo As essências arbóreas Clitoria fairchildiana, Piptadenia gonoacantha e Schizolobium parahyba foram analisadas através de prospecção química do extrato metanólico das madeiras com auxílio da análise com RMN de frações do extrato das
Externí odkaz:
https://doaj.org/article/7ceef7017e8a46fb81ae7e2cd5b5cf87
Autor:
Almir Ribeiro de Carvalho Junior, Rafaela Oliveira Ferreira, Michel de Souza Passos, Samyra Imad da Silva Boeno, Lorena de Lima Glória das Virgens, Thatiana Lopes Biá Ventura, Sanderson Dias Calixto, Elena Lassounskaia, Mario Geraldo de Carvalho, Raimundo Braz-Filho, Ivo Jose Curcino Vieira
Publikováno v:
Molecules, Vol 24, Iss 6, p 1026 (2019)
A phytochemical study of leaves and twigs of Psychotria nuda resulted in 19 compounds, including five indole alkaloids, N,N,N-trimethyltryptamine, lyaloside, strictosamide, strictosidine, and 5α-carboxystrictosidine; two flavonolignans, cinchonain I
Externí odkaz:
https://doaj.org/article/0341dfb975a547cdb6715f5b3e6edf13
Autor:
Cristiane Miranda Martins, Marco Antonio da Silva Vasconcellos, Claudia Antonia Vieira Rossetto, Mario Geraldo de Carvalho
Publikováno v:
Ciência Rural, Vol 40, Iss 9, Pp 1934-1940 (2010)
O maracujazeiro amarelo é propagado por sementes que apresentam problemas na sua germinação devido à presença do arilo que pode conter substâncias inibidoras. O trabalho foi realizado com o objetivo de identificar as classes de metabolitos espe
Externí odkaz:
https://doaj.org/article/1f6a02c77158475a9f41571f1e5b10f2
Publikováno v:
Química Nova, Vol 32, Iss 5, Pp 1119-1128 (2009)
The NMR (RMN¹H, 13C, COSY, HMQC, HMBC, NOE-DIFF, NOESY) and mass spectra data analysis of sixteen flavonoids, including nine natural, 7-O-methylkanferol (ramnocitrin), 3,7-di-O-methylkanferol (kumatakenin), 3-O-methylquercetin, 3,7,3',4'-tetra-O-met
Externí odkaz:
https://doaj.org/article/3c5f68ff9ab247cb8aba88414cd9eed7
Autor:
Almir Ribeiro de Carvalho Junior, Ivo Jose Curcino Vieira, Mario Geraldo de Carvalho, Raimundo Braz-Filho, Mary Anne S. Lima, Rafaela Oliveira Ferreira, Edmilson José Maria, Daniela Barros de Oliveira
Publikováno v:
Molecules, Vol 22, Iss 1, p 103 (2017)
The genus Psychotria (Rubiaceae) comprises more than 2000 species, mainly found in tropical and subtropical forests. Several studies have been conducted concerning their chemical compositions, showing that this genus is a potential source of alkaloid
Externí odkaz:
https://doaj.org/article/a5132afba8a841858bd1bdaf4fc92467
Publikováno v:
Bioscience Journal, Vol 28, Iss 5 (2012)
O objetivo desse trabalho foi avaliar o efeito de extratos diclorometano e metanólico de três espécies da família Meliaceae, Azadirachta indica A. Juss , Melia azedarach L. e Carapa guianenses Aubl. sobre Coptotermes gestroi (Wasmann). Para tanto
Externí odkaz:
https://doaj.org/article/a4799fb36fc2409b80889ad572a60e1f
Autor:
THAÍSA DE OLIVEIRA SILVEIRA, MAYARA DE MELLO MARQUES, GUSTAVO TORRES DOS SANTOS AMORIM, MARIO GERALDO DE CARVALHO, PEDRO CORRÊA DAMASCENO JUNIOR
Publikováno v:
REVISTA CAATINGA; Vol. 35 No. 4 (2022); 755-763
Revista Caatinga; v. 35 n. 4 (2022); 755-763
Revista Caatinga
Universidade Federal Rural do Semi-Árido (UFERSA)
instacron:UFERSA
Revista Caatinga, Volume: 35, Issue: 4, Pages: 755-763, Published: 14 NOV 2022
Revista Caatinga; v. 35 n. 4 (2022); 755-763
Revista Caatinga
Universidade Federal Rural do Semi-Árido (UFERSA)
instacron:UFERSA
Revista Caatinga, Volume: 35, Issue: 4, Pages: 755-763, Published: 14 NOV 2022
Bitter melon (Momordica charantia L.) is a plant species recommended by the Brazilian Health Regulatory Agency (Anvisa) as hypoglycemiant. The characterization of plants is an essential step in any breeding program. The objective of the present work
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4401186b1406ade3818130d9d83bd070
https://periodicos.ufersa.edu.br/caatinga/article/view/11153
https://periodicos.ufersa.edu.br/caatinga/article/view/11153
Publikováno v:
Emirates Journal of Food and Agriculture.
Leaves of Caryocar brasiliense, the gold of the Cerrado, are used in folk medicine to treat diseases of the respiratory tract. The content of total phenols and flavonoids of ethanolic extracts from the leaves of C. brasiliense were analysed by the Fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::093b78bdf2cae11ad9db646cbdbef81a
https://doi.org/10.9755/ejfa.2022.v34.i6.2874
https://doi.org/10.9755/ejfa.2022.v34.i6.2874
Autor:
L. F. Ferreira, Carlos Henrique Corrêa dos Santos, Paulo Teixeira de Sousa, Tereza A. N. Ribeiro, Heron Fernandes Vieira Torquato, Leice M. R. de Novais, Marcos J. Jacinto, Edgar J. Paredes-Gamero, Mario Geraldo de Carvalho, Virgínia C. P. Silva
Publikováno v:
Planta Medica. 86:55-60
Chemical investigation of the stems of Dulacia egleri resulted in the isolation of eglerisine (1), a compound with a rare sesquiterpenoid tropolone skeleton. Its structure was determined by analysis of spectrometric and spectroscopic data, including
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62a75cceac648f98c244d8d070bd0bef
https://doi.org/10.1055/a-1021-0611
https://doi.org/10.1055/a-1021-0611
Autor:
Edwin Elard Garcia-Rojas, Carlos Wanderlei Piler de Carvalho, Carlos Henrique Corrêa dos Santos, Mario Geraldo de Carvalho, Monique Barreto Santos
Publikováno v:
International Journal of Biological Macromolecules. 134:595-603
Carboxymethyl tara gum (CMTG) was synthesized from the reaction between tara gum (TG) and monochloroacetic acid (MCA) in the presence of sodium hydroxide. The modification reaction was optimized in terms of the MCA/NaOH ratio, reaction time and tempe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46a88573d0fd13d3e48a408918e94b5e
https://doi.org/10.1016/j.ijbiomac.2019.05.025
https://doi.org/10.1016/j.ijbiomac.2019.05.025