Second Metabolites
Mostrando 13-24 de 168 artigos, teses e dissertações.
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13. Efeitos do tratamento ácido no inóculo sobre a produção e massa molar do ácido hialurônico / Effects of the acid stress in the inoculum on the production and molecular weight of hyaluronic acid
Hyaluronic acid (HA) is a polysaccharide composed of 2000-25000 disaccaridic units of glucuronic acid and N-acetylglucosamine ?-bonds formed by 1-3 and 1-4 ?-turn. Due its physicochemical properties such as lubricity, hydrophilic and biocompatible, HA has been widely applied in the medical field. Many Studies show that production of HA by fermentation microb
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/10/2011
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14. Análise metabolômica via RMN: amostras de urina e látex / Metabolomic analyses by NMR: urine and latex samples
The aim of the first part of this work was to apply the concept of metabolomic analyses in urine samples obtained from humans diagnosed with type 2 diabetes mellitus (T2DM) and impaired glucose tolerance (IGT) and treated with yerba-mate (Ilex paraguariensis) infusions using nuclear magnetic resonance. T2DM is the most recurrent type of diabetes and correspo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2011
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15. Alelopatia e bioprospecção em Rapanea ferruginea e Rapanea umbellata
Allelopathy is a process that involves primary or secondary metabolites produced by plants and microorganisms, which influences the growth and development of agricultural and biological systems. The intensity of plant allelopathic effects may depend on the hábitat, age and the biotic and abiotic conditions during the seasons in which they were collected. Wh
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/07/2011
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16. Produção de acido hialuronico por cultivo em estado sólido de Streptococcus zooepidemicus em em bagaço de caju / Hyaluronic acid production by by state Streptococcus zooepidemicu in cashew apple bagasse
ln this work, hyaluronic acid (HA) production was studied the in solid state cultivation (SSF) of Streptococcus zooepidemicus, focusing on metabolic changes induced by varying the initial sugar concentration (ICS), initial concentration of ascorbate (ICAsc), volumetric air flow rate, oxygen availability and particle size. The first approach shows the compari
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2011
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17. Fotossíntese, crescimento e composição química em plantas de Theobroma cacao L. submetidas a diferentes concentrações de silicato de potássio e sua interação com insetos-praga / Photosynthesis, growth and chemical composition in plants of Theobroma cacao L. subjected to different concentrations of potassium silicate and its interaction with insect-pests
The control of insect pests through the use of pesticides, is still the most method used in the cultivation of cocoa. However, due to environmental issues, there need to seek new alternatives of control less harmful the environment and to humans. In this context, silicon is a nutrient that is being used in various cultures, due to its beneficial effects on p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2011
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18. Antitumoral, mutagenic and (anti)estrogenic activities of tingenone and pristimerin
Cancer constitutes the second main mortality cause in the world, after cardiovascular diseases. In spite of the progresses in the chemotherapeutics treatments, many patients fail chemotherapy, mainly because of side effects or multi-drugs resistance, proving the need and importance of the research for new molecules with anticancer activity, more effective an
Revista Brasileira de Farmacognosia. Publicado em: 26/08/2011
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19. Unusual intron in the second exon of a Type III polyketide synthase gene of Alpinia calcarata Rosc.
Plant phenolic compounds form a valuable resource of secondary metabolites having a broad spectrum of biological activities. Type III polyketide synthases play a key role in the formation of basic structural skeleton of the phenolic compounds. As a group of medicinal plants, PKSs with novel features are expected in the genome of Zingiberaceae. The genomic ex
Genetics and Molecular Biology. Publicado em: 2010
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20. Influência dos fatores ambientais sobre a concentração de compostos fenólicos nas folhas e na casca do caule de Lafoensia pacari A. St.-Hil. (Lythraceae) / Influence of environmental factors on the concentration of phenolic compounds in leaves and stem bark of A. Lafoensia pacari St.-Hil. (Lythraceae)
In Brazil, the cerrado is holding out for 20 to 50% of plant species in the country, contributing to research on natural products. Among the medicinal plants of the cerrado, Lafoensia pacari A. St.-Hil., known as dedaleiro or pacari is widely used as an antipyretic, healing, antiinflammatory, antidiarrheal, in gastritis and cancer. Studies have shown that ex
Publicado em: 2010
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21. Efeito analgésico periférico do tramadol em ratos / Local analgesic effect of tramadol in rats
INTRODUCTION: Tramadol is a centrally and peripherally-acting drug, found as a racemic mixture of two enantiomers (+) and (-)-tramadol and effective in the treatment of moderate to severe pain. Tramadol has an -opioid effect ten times less potent than codeine. After first pass metabolism, tramadol is metabolized to various compounds and its major metabolites
Publicado em: 2010
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22. ESTUDO DAS ATIVIDADES ANTINOCICEPTIVA, ANTI-INFLAMATÓRIA E ANTIOXIDANTE DA SIDEROXYLON OBTUSIFOLIUM (SAPOTACEAE) / STUDY OF THE ANTINOCICEPTIVE, ANTI-INFLAMMATORY AND ANTIOXIDANT ACTIVITIES OF SIDEROXYLON OBTUSIFOLIUM (SAPOTACEAE).
Sideroxylon obtusifolium belongs to the family Sapotaceae. This study aimed to contribute to the scientific knowledge of the antinociceptive, anti-inflammatory and antioxidant properties of the steam bark of Sideroxylon obtusifolium (Roem. &Schult.) T.D. Penn, popularly known as quixabeira and used to treat pain and inflammation. The ethanol crude extract of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/12/2009
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23. Caracterização química dos extratos em diclorometano de Origanum majorana L. na inibição de Panicum maximum
Foram estudados o potencial alelopático dos extratos da raiz, do caule e das folhas de Origanum majorana L.(catinga de mulata), quanto a inibição da germinação de sementes de Panicum maximum (capim-colonião), o ensaio foi realizado em caixas gerbox, com fotoperíodo de 10 horas e 7 dias, com soluções dos extratos diclorometânicos da raiz, caule e fo
Publicado em: 2009
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24. Investigação do potencial alelopático de Pittosporum undulatum Vent / Assesment of allelopathic potential in cheesewood (Pittosporum undulatum Vent)
Pittosporum undulatum Vent., an Australian tree implicated in supression of tree recruiment in many ecosystems, is found invading secondary Araucaria forests in subtropical Brazil. The first chapter of this study aimed to investigate the role of allelopathy in the invasive proccess, accessing germination and growth of Bauhinia forficata Link. in presence of
Publicado em: 2009