Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Sergio Massayoshi Nunomura"'
Constituintes químicos isolados dos galhos e cascas de amapazeiro (Parahancornia amapa, Apocynaceae)
Autor:
Marycleuma Campos Henrique, Rita de Cássia Saraiva Nunomura, Sergio Massayoshi Nunomura, Suniá Gomes Silva
Publikováno v:
Acta Amazonica, Vol 44, Iss 4, Pp 533-538 (2014)
Parahancornia amapa (Apocynaceae) é típica da região amazônica e conhecida popularmente como amapazeiro e muito utilizada na medicina popular da região Amazônica. O objetivo desse trabalho foi o estudo fitoquímico dos galhos e cascas dessa esp
Externí odkaz:
https://doaj.org/article/561f15033a51435480837679e6eed613
Autor:
Luiz Francisco Rocha e Silva, Emerson Silva Lima, Marne Carvalho de Vasconcellos, Ellen Suzany Pereira Aranha, David Siqueira Costa, Elba Vieira Mustafa, Sabrina Kelly Reis de Morais, Maria das Gracas Costa Alecrim, Sergio Massayoshi Nunomura, Lena Struwe, Valter Ferreira de Andrade-Neto, Adrian Martin Pohlit
Publikováno v:
Memorias do Instituto Oswaldo Cruz, Vol 108, Iss 4, Pp 501-507 (2013)
Tachia sp. are used as antimalarials in the Amazon Region and in vivo antimalarial activity of a Tachia sp. has been previously reported. Tachia grandiflora Maguire and Weaver is an Amazonian antimalarial plant and herein its cytotoxicity and antimal
Externí odkaz:
https://doaj.org/article/ce1ae28e9bd54ef1b85dda07a1570c3d
Autor:
Ellen Cristina Costa da Silva, Magno Perêa Muniz, Rita de Cássia Saraiva Nunomura, Sergio Massayoshi Nunomura, Gislene Almeida Carvalho Zilse
Publikováno v:
Química Nova, Vol 36, Iss 5, Pp 628-633 (2013)
We investigated the phenolic constituents and antioxidant activity of geopropolis from two species of stingless Amazonian bees, Melipona interrupta and Melipona seminigra. The chemical investigation of geopropolis from Melipona interrupta led to the
Externí odkaz:
https://doaj.org/article/a29354da8c414ed2bbe8ed980fd577ba
Autor:
Rita de Cássia Saraiva Nunomura, Angelo C. Pinto, Sergio Massayoshi Nunomura, Adrian Martin Pohlit, Ana Cláudia Fernandes Amaral
Publikováno v:
Química Nova, Vol 35, Iss 11, Pp 2153-2158 (2012)
Simaba guianensis subesp. ecaudata (Simaroubaceae) is a tree found in the Brazilian Amazon. This work describes for the first time the fractionation of stems of this species that resulted in the isolation of the cytotoxic triterpene piscidinol A, the
Externí odkaz:
https://doaj.org/article/3cb375d39c5d4595b22a65c754806ed0
Publikováno v:
Química Nova, Vol 35, Iss 10, Pp 1936-1939 (2012)
Six limonoids were isolated in hexane extract obtained from the seeds and pericarps of Carapa guianensis. The structures of the limonoids were determined based on the analysis of High Resolution Mass Spectroscopy and Nuclear Magnetic Resonance (uni-a
Externí odkaz:
https://doaj.org/article/b3c13cfa1f0047d5b560474eb957e7d8
Publikováno v:
Química Nova, Vol 33, Iss 2, Pp 284-287 (2010)
Fractionation of extracts resulted in isolation and identification of indole alkaloids ellipticine and N-methyltetrahydroellipticine from A. vargasii and aspidocarpine from A. desmanthum. Identification of these compounds was achieved based on IR, MS
Externí odkaz:
https://doaj.org/article/9b0fbfc35cc24b4aaad0e28c0aeea6f6
Autor:
Banny Silva Barbosa, Hector Henrique Ferreira Koolen, Andreza Cruz Barreto, João Domingos da Silva, Roberto Figliuolo, Sergio Massayoshi Nunomura
Publikováno v:
Acta Amazonica, Vol 39, Iss 2, Pp 371-376 (2009)
A falta de disponibilidade de energia elétrica é um dos principais motivos pelo baixo Índice de Desenvolvimento Humano das comunidades isoladas localizadas na Amazônia. O biodiesel produzido a partir de óleos vegetais extraídos de espécies ole
Externí odkaz:
https://doaj.org/article/ae8ea494b1754f77a242426f607a2d2b
Autor:
Sabrina Kelly Reis de Morais, Suniá Gomes Silva, Cíntia Nicácio Portela, Sergio Massayoshi Nunomura, Etienne Louis Jacques Quignard, Adrian Martin Pohlit
Publikováno v:
Acta Amazonica, Vol 37, Iss 1, Pp 99-102 (2007)
Tabebuia incana A.H. Gentry (Bignoniaceae) is a tree from the Brazilian Amazon having medicinal uses and is one several Tabebuia spp. known as pau d'arco or palo de arco in this region. Fractionation of the bark ethanolic extract afforded a mixture o
Externí odkaz:
https://doaj.org/article/bb40d232ddc34437bc939ba0575ed04a
Autor:
Rita de Cássia Guedes Saraiva, Angelo C. Pinto, Sergio Massayoshi Nunomura, Adrian Martin Pohlit
Publikováno v:
Química Nova, Vol 29, Iss 2, Pp 264-268 (2006)
Externí odkaz:
https://doaj.org/article/23946c3250c24c3c96a8de43a3555c3e
Autor:
Rita de Cássia Saraiva Nunomura, Ellen Cristina Costa da Silva, Denilson Ferreira Oliveira, Adriana Mello Garcia, Jankerle Neves Boeloni, Sergio Massayoshi Nunomura, Adrian Martin Pohlit
Publikováno v:
Acta Amazonica, Vol 36, Iss 3, Pp 327-330 (2006)
1300 ppm (1.3 g / L), water and ethanol extracts prepared from stems or roots of Picrolemma sprucei Hook. f. were lethal (85-90 % mortality) in vitro to Haemonchus contortus (Barber Pole Worm) larvae, a gastrointestinal nematode parasite found in dom
Externí odkaz:
https://doaj.org/article/f0be9ff52e884fd4abdd0b2dac6dfab0