Anthraquinones
Mostrando 1-12 de 27 artigos, teses e dissertações.
-
1. Design and evaluation of rhubarb total free anthraquinones oral colon-specific drug delivery granules to improve the purgative effect
Rhubarb is commonly used as a cathartic in Asian countries. However, researchers have devotedextensive concerns to the quality control and safety of rhubarb and traditional Chinese preparations composed of rhubarb due to the instable purgative effect and potential nephrotoxicity of anthraquinones. In this study, we aimed to prepare rhubarb total free anthraq
Braz. J. Pharm. Sci.. Publicado em: 10/07/2019
-
2. Update: Biological and Chemical Aspects of Senna spectabilis
Senna spectabilis (syn Cassia spectabilis) is one of the most important species within the Fabaceae family, natively found in Central and South America, as well as parts of Asia and Africa. Due to the extensive geographical distribution, this fast-growing tree produces a wide variety of bioactive secondary metabolites, being of special interest for chemical
J. Braz. Chem. Soc.. Publicado em: 2017-03
-
3. Simultaneous, Simple and Rapid Determination of Five Bioactive Free Anthraquinones in Radix et Rhizoma Rhei by Quantitative 1H NMR
Radix et Rhizoma Rhei has been recognized for centuries in traditional medicine for its multiple pharmacological actions. The free anthraquinones including physcion, chrysophanol, emodin, rhein, and aloe-emodin are the main bioactive components in Radix et Rhizoma Rhei. In the present study, a fast quantitative 1H nuclear magnetic resonance (q-HNMR) method f
J. Braz. Chem. Soc.. Publicado em: 2016-11
-
4. In vivo diabetic wound healing effect and HPLC–DAD–ESI–MS/MS profiling of the methanol extracts of eight Aloe species
Abstract Genus Aloe, Xanthorrhoeaceae, is well distributed all over Egypt, and many species have been used as medicinal plants; mainly reported to prevent cardiovascular diseases, cancer and diabetes. This study attempts to analyze the secondary metabolites in the methanol extract of the leaves of eight Aloe species; A. vera (L.) Burm. f., A. arborescens Mil
Rev. bras. farmacogn.. Publicado em: 2016-06
-
5. Chemical and pharmacognostical characterization of two Malaysian plants both known as Ajisamat
Ajisamat, an herb commonly used as an aphrodisiac in the Malaysian traditional medicine, corresponds to two different species from different families - Salacia macrophylla Blume, Celastraceae, and Prismatomeris glabra (Korth.) Valeton, Rubiaceae. Macromorphological inspection of the vegetative parts both plants reveals only a slight difference in the arrange
Rev. bras. farmacogn.. Publicado em: 2013-10
-
6. Anti-ulcer activity of Synadenium grantii latex
Synadenium grantii Hook f., Euphorbiaceae, is popularly known as leitosinha or janaúba. The diluted latex (18 drops/L of water) is commonly used in the south of Brazil to treat gastric disturbances. This study evaluated phytochemical screening and toxicity using Artemia salina Leach of crude bark extract and also latex. The toxicity and the anti-ulcer activ
Rev. bras. farmacogn.. Publicado em: 17/04/2012
-
7. Estudo quÃmico e farmacolÃgico de Senna martiana (Benth) Irw. &Barn / Chemical and pharmacological of Senna martiana (Benth) Irw &Barn
Este trabalho apresenta o estudo da composiÃÃo quÃmica de Senna martiana (Benth) Irw. e Barn. pertencente à famÃlia da Leguminoseae. Norteou-se este estudo para o conhecimento dos constituintes quÃmicos fixos das flores e das raÃzes da planta. O levantamento bibliogrÃfico revelou a ausÃncia de estudos quÃmicos, biolÃgicos ou farmacolÃgicos realiz
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/02/2011
-
8. Anthraquinones from the bark of Senna macranthera
2-acetil-fisciona (2-acetil-1, 8-di-hidróxi-6-metóxi-3-metil-9, 10-antraquinona, 2), uma antraquinona rara, foi isolada de Senna acranthera var. nervosa (Vogel) H.S. Irwin & Barneby (Fabaceae). estrutura química foi elucidada e todos os deslocamentos químicos de RMN ¹H e 13C foram atribuídos através de RMN uni- (RMN¹H, {¹H}-RMN-13C e APT-RMN13C) e b
Anais da Academia Brasileira de Ciências. Publicado em: 2011-12
-
9. Phytochemical and antifungal activity of anthraquinones and root and leaf extracts of Coccoloba mollis on phytopathogens
The aim of this work was to study the phytochemical and antifungal activity of anthraquinones and root and leaf extracts of Coccoloba mollis on phytopathogens. The chemical analysis of ethanolic extracts showed a mixture of long-chain hydrocarbons, carboxyl esters and 3-taraxerone in the leaf extract. Two anthraquinones (emodin and physcion) were isolated an
Brazilian Archives of Biology and Technology. Publicado em: 2011-06
-
10. Avaliação química e das atividades biológicas de Coccoloba mollis
Coccoloba mollis (Polygonaceae) is a plant that is being used as medicine in Londrina (memory herb), this specie has been praised as efficient in the treatment of stress, and as memory modulator. This work presents the chemical evaluation of the root and leaf ethanolic extracts of C. mollis and biological tests. The extracts were submitted to usual chromatog
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/03/2009
-
11. Constituintes químicos do caule de Senna reticulata Willd. (Leguminoseae): Chemical constituents isolated from the wood of Senna reticulata Willd.
The phytochemical investigation of the wood extracts of Senna reticulata (Leguminoseae) yielded six anthraquinones: chrysophanol, physcion, aloe-emodin, 1,3,8-trihydroxyanthraquinone, 3-methoxy-1,6,8-trihydroxyanthraquinone, emodin and the chrysophanol-10,10' bianthrone. The triterpenes a and b-amirin, the steroids b-sitosterol and stigmasterol as well as th
Química Nova. Publicado em: 2008
-
12. Estudo de fungos endofíticos associados a plantas da família Asteraceae como fontes de metabólitos secundários e em processos de biotransformações / Studies of endophytic fungi found in association with species of Asteraceae as sources of secondary metabolites and on biotransformation processes.
Fungos endofíticos constituem uma fonte promissora e ainda pouco explorada de novas substâncias potencialmente bioativas, que podem ter aplicações na medicina, agricultura e biologia química. Neste trabalho foram isolados cinco fungos endofíticos das folhas de Tithonia diversifolia, os quais foram cultivados em pequena escala e avaliados em diversos bi
Publicado em: 2008