Inhibition Constant
Mostrando 13-24 de 826 artigos, teses e dissertações.
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13. Imobilização de α-galactosidase de Aspergillus niger em resina de troca iônica Duolite A-568
Immobilized enzymes provide many advantages when compared to the usage of their free forms. Among these ones, remarkable advantages are the possibility of the biocatalyst reusability, easy separation at the end of the process, its usage in continuous way and the enhancement of its stability. This work was performed aiming the immobilization of the α-gal
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/07/2012
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14. Potencialidades do ácido 4-[(1E)etanohidrazonoil]benzóico como biomimético para a esterase da acetiltiocolina / Potencialities of [4-(1E)ethanehydrazonoyl]benzoic acid as a biomimetic for acetylthiocholine esterase
The application of pesticides and the resulting contamination have been a matter of constant concern, being necessary to monitor these compounds by methods that are able to quantify these compounds in water and food. The chromatographic techniques are most often used for this kind of analysis, but present some drawbacks for \"in situ\" or in real time applic
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012
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15. Cytoprotective role of the aqueous extract of Terminalia chebula on renal epithelial cells
PURPOSE: Kidney stone is one of the most prevalent diseases worldwide. Calcium oxalate (CaOx) has been shown to be the main component of the majority of stones formed in the urinary system of the patients with urolithiasis. The present study evaluates the antilithiatic properties of Terminalia chebula commonly called as "harad" which is often used in ayurved
International braz j urol. Publicado em: 2012-04
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16. Production and characterization of tyrosinase activity in Pycnoporus sanguineus CCT-4518 crude extract
Tyrosinase is an enzyme of industrial interest. The production and characterization of tyrosinase from P. sanguineus CCT-4518 were investigated. The selection of inductors, luminosity influence, inoculum size and type of culture medium on the production of tyrosinase and the effect of inhibitors on enzyme activity were performed. Optimum conditions for intra
Brazilian Journal of Microbiology. Publicado em: 2012-03
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17. Enzymatic and biochemical characterization of Bungarus sindanus snake venom acetylcholinesterase
This study analyses venom from the elapid krait snake Bungarus sindanus, which contains a high level of acetylcholinesterase (AChE) activity. The enzyme showed optimum activity at alkaline pH (8.5) and 45ºC. Krait venom AChE was inhibited by substrate. Inhibition was significantly reduced by using a high ionic strength buffer; low ionic strength buffer (10
Journal of Venomous Animals and Toxins including Tropical Diseases. Publicado em: 2012
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18. Differential activation of the enzymatic antioxidant system of Abelmoschus esculentus L. under CdCl2 and HgCl2 exposure
Cadmium and Mercury induced varying responses in Abelmoschus esculentus L. in relation to enzymes (ascorbate peroxidase (APX, 1.11.1.11), catalase (CAT, 1.11.1.6), glutathione reductase (GR, 1.6.4.2) and superoxide dismutase (SOD, 1.15.1.1) which are most related to the levels of Hg and Cd applied and concentrations of thiol groups already present or induced
Brazilian Journal of Plant Physiology. Publicado em: 2011
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19. Democracia fiscal e seus fundamentos à luz do direito &economia / Tax equality: law and economics view
Any society must decide how the common expenses will be shared and this has happened for thousands of years. From elements of the own movement of Law and Economics, this thesis formulates a scientific proposition about this theme. Its the fiscal democracy. Starting from the basic assumption that the Law and the Economics influence each other in a dynamic of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/04/2010
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20. Seleção de microrganismos produtores de frutosiltransferase e estudo das propriedades bioquimicas da frutosiltransferase de Penicillium sp / Screening of microrganisms for transfructosylating activity and study of biochemical properties of fructosyltransferase from Penicillium sp
t: Impulsionados pela grande demanda por alimentos ¿saudáveis¿ e de calorias controladas, têm surgido desde os anos 80 um grande número de adoçantes alternativos e, entre eles, diversos oligossacarídeos. Entre os oligossacarídeos mais estudados estão os frutooligossacarídeos (FOS), que se tornaram mais importantes por suas propriedades funcionais q
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/02/2009
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21. Sulfide toxicity kinetics of a uasb reactor
The effect of sulfide toxicity on kinetic parameters of anaerobic organic matter removal in a UASB (up-flow anaerobic sludge blanket) reactor is presented. Two lab-scale UASB reactors (10.5 L) were operated continuously during 12 months. The reactors were fed with synthetic wastes prepared daily using glucose, ammonium acetate, methanol and nutrient solution
Brazilian Journal of Chemical Engineering. Publicado em: 2009-12
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22. Retina de aves como sistema circadiano e sua modulação por luz e glutamato / Avian retina as a circadian system and its modulation by light and glutamate
The avian circadian system is composed by the retina, the mammalian homolog region of the supra-chiasmatic nucleus (SNC) and the pineal gland. The retina itself shows many rhythmic physiological events, such as movements of photoreceptor cells, opsin expression, retinaldehyde re-isomerization, melatonin and dopamine production and release. Altogether these r
Publicado em: 2009
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23. Participação do óxido nítrico na expressão de vasopressina e ocitocina durante sepse polimicrobiana experimental / Involvement of nitric oxide in vasopressin and oxytocin expression during experimental polymicrobial sepsis.
Sepsis induces massive production of inflammatory mediators, such as nitric oxide (NO), and causes cardiovascular, neuroendocrine and body temperature (Tb) alterations. In the late phase of sepsis there is a basal vasopressin (AVP) release despite the persisting hypotension. One reason could be the inhibition of AVP synthesis by the increase in NO production
Publicado em: 2009
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24. Produção e caracterização da atividade de tirosinase no extrato bruto de Pycnoporus sanguineus CCT-4518 / Production and characterization of tyrosinase activity in Pycnoporus sanguineus CCT-4518 crude extract
Tyrosinase (E.C.1.14.18.1) is an enzyme of industrial interest that catalyses the ohydroxylation of monophenols (monophenolase activity) and the oxidation of o-diphenols to reactive o-quinones (diphenolase activity), both reactions using molecular oxygen. Pycnoporus sanguineus (L. ex Fries) Murril, is a white rot fungi capable of producing tyrosinase and wid
Publicado em: 2009