Fractionation
Mostrando 13-24 de 2889 artigos, teses e dissertações.
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13. New cathepsin V inhibitor from stems of Bowdichia virgilioides
Abstract Bioassay-guided fractionation of Bowdichia virgilioides Kunth, Fabaceae, extracts has led to the isolation of cathepsin V inhibitors. The investigation of the hexane and ethyl acetate extracts allowed the characterization of eleven compounds: lupeol, lupenone, β-sitosterol and stigmasterol in mixture, trans p-coumaric acid ester derivative, syringa
Rev. bras. farmacogn.. Publicado em: 17/10/2019
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14. ETHANOLIC AND HYDROALCOHOLIC EXTRACTS OF PITANGA LEAVES (Eugenia uniflora L.) AND THEIR FRACTIONATION BY SUPERCRITICAL TECHNOLOGY
Abstract Hydroalcoholic extracts prepared by conventional methods (in stirred vessel at 25 °C and 1 bar) and, hydroalcoholic and supercritical carbon dioxide (scCO2) extracts prepared in fixed bed extractors (60 ºC and 400 bar) were obtained from pitanga leaves (Eugenia uniflora L.) in order to recover phenolic compounds. Hydroalcoholic and ethanolic extra
Braz. J. Chem. Eng.. Publicado em: 30/09/2019
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15. Salinity and stable oxygen isotope relationship in the Southwestern Atlantic: constraints to paleoclimate reconstructions
Abstract: Stable isotopes have been widely used in the literature both to discuss current ocean circulation processes, as well as to reconstitute paleoceanographic parameters. The distribution of oxygen and deuterium stable isotopes in seawater (δ18Osw and δDsw) at the Western Tropical South Atlantic border was investigated to better understand the main fr
An. Acad. Bras. Ciênc.. Publicado em: 30/09/2019
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16. Soil-applied Zn effect on soil fractions
ABSTRACT The interaction of Zn with soil compartments influences its bioavailability and uptake by plants. In this study, rice and soybean were cultivated under greenhouse conditions with the aim of evaluating Zn bioavailability and fractionation in a clayey-textured Typic Hapludox as a function of Zn rates (4 or 8 mg kg –1 Zn). The experiment was conducte
Sci. agric. (Piracicaba, Braz.). Publicado em: 02/09/2019
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17. Anti-Cancer and Anti-Proliferation Activity of Ethyl Asetat Extract From Ant Nest (Myrmecodia pendans) in Burkitt’s Lymphoma Cancer Cells
Abstract Objective: To determine the activity of anti-cancer and anti-proliferation of ethyl acetate fraction of ant nest plants (Myrmecodia pendans) in Burkitt’s Lymphoma cancer cells. Material and Methods: The study was conducted in a pure laboratory experimental method using Burkitt's Lymphoma cancer cell culture. Gradual research begins with the dete
Pesqui. Bras. Odontopediatria Clín. Integr.. Publicado em: 02/09/2019
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18. Antileishmanial activity and immunomodulatory effect of secosubamolide, a butanolide isolated from Nectandra oppositifolia (Lauraceae)
Abstract Background: Visceral leishmaniasis is a complex neglected tropical disease caused by Leishmania donovani complex. Its current treatment reveals strong limitations, especially high toxicity. In this context, natural products are important sources of new drug alternatives for VL therapy. Therefore, the antileishmanial and immunomodulatory activity of
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 19/08/2019
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19. Chemical Constituents and Pharmacology properties of Aristolochia triangularis: a south brazilian highly-consumed botanical with multiple bioactivities
Abstract: Aristolochia triangularis Cham., is one of the most frequently used medicinal plant in Southern Brazil. Preparations containing the leaves and/or stems are traditionally used as anti-inflammatory, diuretic, as well as antidote against snakebites. This study screened A. triangularis extracts, fractions and isolated compounds for different bioactivit
An. Acad. Bras. Ciênc.. Publicado em: 12/08/2019
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20. Chemical Composition and Anti-Inflammatory Activity of the Decoction from Leaves of a Cultivated Specimen of Myracrodruon urundeuva
Myracrodruon urundeuva (Anacardiaceae) is the scientific designation of “aroeira-do-sertão”, a tree well dispersed at the northeastern Brazil. The medicinal use of this plant is widespread throughout the rural population and the inner trunk bark decoction is used to treat cutaneous affections, urinary and respiratory diseases, and gynecological problems
J. Braz. Chem. Soc.. Publicado em: 12/08/2019
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21. Is moderate hypofractionation accepted as a new standard of care in north america for prostate cancer patients treated with external beam radiotherapy? Survey of genitourinary expert radiation oncologists
ABSTRACT Introduction: Several recent randomized clinical trials have evaluated hypofractionated regimens against conventionally fractionated EBRT and shown similar effectiveness with conflicting toxicity results. The current view regarding hypofractionation compared to conventional EBRT among North American genitourinary experts for management of prostate
Int. braz j urol.. Publicado em: 27/05/2019
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22. ORGANIC MATTER AND SOIL FERTILITY IN DIFFERENT SUCCESSIONAL STAGES OF SEASONAL SEMIDECIDUAL FOREST
RESUMO O acúmulo e as transformações da matéria orgânica do solo são fundamentais para a manutenção e melhoria dos atributos químicos, físicos e biológicos do solo, e, consequentemente, para o funcionamento das florestas tropicais. O objetivo deste estudo foi avaliar a influência de florestas secundárias com diferentes estádios sucessionais na
Rev. Caatinga. Publicado em: 09/05/2019
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23. Nitrogen management of forage grasses for nutrition, seed production, and nutrients in residual straw
Resumo: O objetivo deste trabalho foi avaliar a nutrição, a quantidade de nutrientes na palhada residual, a produtividade de sementes puras e a qualidade de sementes das gramíneas forrageiras tropicais 'Mombaça' e 'Xaraés', quando submetidos ao manejo de nitrogênio em cobertura. Foram conduzidos experimentos em campo nos municípios de Rancharia e de P
Pesq. agropec. bras.. Publicado em: 29/04/2019
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24. QUALIDADE FÍSICO-QUÍMICA E MICROBIOLÓGICA DO LEITE BOVINO EM DIFERENTES SISTEMAS DE PRODUÇÃO E ESTAÇÕES DO ANO
Resumo O objetivo deste trabalho foi avaliar a interação entre sistemas produtivos e estações do ano sobre a qualidade do leite bovino. Três propriedades foram avaliadas mensalmente, durante as estações, em quatro graus de especialização dos sistemas de produção: altamente especializado, especializado, semiespecializado e não especializado. Em te
Ciênc. anim. bras.. Publicado em: 29/04/2019