Search
Now showing items 41-50 of 62
Aplicacão de LC-SPE/NMR na caracterização de substâncias isoladas de cultivos da bactéria marinha Streptomyces cebimarensis SS99BA-2
(Universidade Federal de São Carlos, 2014-03-21)
Marine microorganisms are living beings with extraordinary abilities, once they have developed physiological and metabolic capabilities that allow them to survive in an environment filled with adverse conditions, such as ...
Obtenção de inseticida e fungicida contra formigas cortadeiras e seu fungo simbionte em Myracrodruon urundeuva e de complexos de coordenação com metais de compostos ativos para controle desta praga
(Universidade Federal de São Carlos, 2012-08-31)
Insects are the major competitors for food in relation to humans. Ants ("sauvas" and "quenquéns") are the major pests of several culture and in reforestation areas in Brazil represent more than 75% of the time and financial ...
Quantificação de carbamazepina, fluoxetina e seus metabólitos principais em leite materno por injeção direta de amostra utilizando cromatografia líquida acoplada à espectrometria de massa
(Universidade Federal de São Carlos, 2013-04-05)
This work reports the application of bioanalitycal methods by direct injection sample for the quantification of drugs in breast milk. Columns with stationary phase type RAM-BSA, in conventional scale and microbore, were ...
Estudo fitoquímico de Annona sylvatica (Annonaceae). Avaliação das atividades inseticida e fungicida frente às formigas cortadeiras e seu fungo simbionte e ao gorgulho do milho
(Universidade Federal de São Carlos, 2013-03-27)
The leaf-cutting ants are social species, living in permanent colonies. The genera of the greater importance, Atta (saúvas) and Acromyrmex (quenquéns), are the major plagues of Brazilian agriculture, to cause serious damages ...
Alcalóides de Rutaceae: química e atividade biológica.
(Universidade Federal de São Carlos, 2003-11-18)
This
work describes the phytochemical study of two plant species Galipea bracteata and
Ravenia infelix belonging to the family Rutaceae, aiming the isolation and structure
determination of componds from leaves and branches ...
Precessão Livre de Onda Contínua (CWFP) como ferramenta para supressão do sinal de solvente em RMN de alta resolução
(Universidade Federal de São Carlos, 2011-08-01)
The application of Continuous Wave Free Precession (CWFP) method for solvent suppression in high resolution NMR spectroscopy is reported. The applied methodology was based in the use of conventional pulse sequence that use ...
Emprego da organocatálise como uma ferramenta da química verde em reações de adição conjugada : estudos visando a síntese de anéis indólicos
(Universidade Federal de São Carlos, 2012-03-30)
Organocatalysis has emerged as a powerful synthetic paradigm and has accelerated the development of new methods to make diverse chiral molecules. In addition, the small chiral organic molecules used to accelerate asymmetric ...
Synthesis, structural diversification, biological activities and biotransformation of dibenzylacetones : simple chemistry furnishing potent compounds
(Universidade Federal de São Carlos, 2016-02-23)
The structural diversity of known compounds holding two benzene rings
directly connected to each other (Bis-phenyl), or separated by a carbon-chain (Bisarylalkane),
is nowadays generated intensive scientific studies ...
Alguns aspectos químicos envolvidos na interação Hypsipyla grandella (broca-do-mogno e Swietenia macrophylla (Mogno)
(Universidade Federal de São Carlos, 2002-11-08)
The interaction between Hypsipyla grandella (Mahogany bore) and Swietenia macrophylla was studied in order to understand the chemical and ecological aspects involved on this process. H. grandella is a shoot borer lepdoptera ...
Obtenção e caracterização bioquímica de xilanases nativas e recombinante do fungo Leucoagaricus gongylophorus
(Universidade Federal de São Carlos, 2013-08-30)
Xylanases are enzymes which randomly cleave the main chain of xylan, the most abundant non-cellulosic polysaccharide of plants cell wall. Xylanases are commonly produced by a wide range of organisms including bacteria, ...