Enzymes Kinetics
Mostrando 1-12 de 378 artigos, teses e dissertações.
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1. IMIDAZOL E CATÁLISE: UM PAR PERFEITO
The imidazole (IMZ) ring presents several chemical properties that turns it into a versatile acid-basic/nucleophilic catalyst. The discovery of the biological properties of histidine (amino acid with IMZ ring) instigates the study of this class of compounds. It is found in nature in several enzymes such as chymotrypsin and RNAses due to these properties. Thi
Quím. Nova. Publicado em: 2021-03
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2. Commercial and non-commercial pectinase and cellulase on the enzymatic hydrolysis efficacy of rice husk and Tifton 85 hay
ABSTRACT. The aim of this study was to evaluate the action of commercial and non-commercial cellulase and pectinase on rice husk and Tifton 85 hay hydrolyses. The hydrolysis kinetics of the substrates with commercial cellulase and pectinase were evaluated and the hydrolysis at different temperature and agitation conditions was maximized using experimental de
Acta Sci., Anim. Sci.. Publicado em: 29/04/2019
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3. Advances in enzyme bioelectrochemistry
ABSTRACT Bioelectrochemistry can be defined as a branch of Chemical Science concerned with electron-proton transfer and transport involving biomolecules, as well as electrode reactions of redox enzymes. The bioelectrochemical reactions and system have direct impact in biotechnological development, in medical devices designing, in the behavior of DNA-protein
An. Acad. Bras. Ciênc.. Publicado em: 2018
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4. α-Glucosidase and pancreatic lipase inhibitory activities and glucose uptake stimulatory effect of phenolic compounds from Dendrobium formosum
ABSTRACT A methanol extract from the whole plant of Dendrobium formosum Roxb. ex Lindl., Orchidaceae, showed inhibitory potential against α-glucosidase and pancreatic lipase enzymes. Chromatographic separation of the extract resulted in the isolation of twelve phenolic compounds. The structures of these compounds were determined through analysis of NMR and
Rev. bras. farmacogn.. Publicado em: 2017-08
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5. ALCALOIDES ACRIDÔNICOS INIBEM CATEPSINA L E V
Cathepsins represent a class of enzymes that has the primary function of randomly degrading proteins in the lysosomes, although are also involved in different pathologies. The aim of this paper was to evaluate the capacity of acridone alkaloids isolated from Swinglea glutinosa (Rutaceae) to inhibit cathepsin L in vitro . The IC50 values found were in the 0.8
Quím. Nova. Publicado em: 2016-01
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6. Biophysicochemical characterization of Pyocin SA189 produced by Pseudomonas aeruginosa SA189
Abstract Pseudomonas aeruginosa, in spite of being a ubiquitous organism (as it is found in soil, water, and humans), is also an opportunistic pathogen. In order to maintain its diversity in the community, it produces various toxic proteins, known as, bacteriocins. In the present study, pyocin SA189, which is a bacteriocin produced by P. aeruginosa SA189 (is
Braz. J. Microbiol.. Publicado em: 2015-12
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7. Screening and kinetics of glutaminase and glutamate decarboxylase producing lactic acid bacteria from fermented Thai foods
L-glutaminase and glutamic acid decarboxylase (GAD) catalyzes the hydrolysis of L-glutamine and glutamate, respectively. L-glutaminase widely used in cancer therapy along with a combination of other enzymes and most importantly these enzymes were used in food industries, as a major catalyst of bioconversion. The current investigation was aimed to screen and
Food Sci. Technol. Publicado em: 2014-12
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8. Screening of wild type Streptomyces isolates able to overproduce clavulanic acid
The selection of new microorganisms able to produce antimicrobial compounds is hoped for to reduce their production costs and the side effects caused by synthetic drugs. Clavulanic acid is a β-lactam antibiotic produced by submerged culture, which is widely used in medicine as a powerful inhibitor of β-lactamases, enzymes produced by bacteria resistant to
Braz. J. Microbiol.. Publicado em: 2014-09
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9. ReaÃÃes biocatalÃticas usando cÃlulas Ãntegras de Lens culinaris (Lentilha). / REACTIONS USING WHOLE CELL BIOCATALYTIC LENS CULINARIS (LENTIL)
This paper describes the use of seeds of lentil (Lens culinaris) as intact plant system in biocatalytic reactions of reduction and hydrolysis. Initially, some plant sources were evaluated for their action in the biocatalytic reduction of aromatic ketone acetophenone. The plants that showed positive results in the reduction reaction underwent determination of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/10/2012
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10. Avaliação de anti-inflamatórios não esteroidais comerciais (AINES) sobre a atividade e função de PLA2 secretórias isolada dos venenos de Bothrops leucurus / Evaluation of comercial non-steroidal anti-inflammatory drugs (NSAIDs) on the activity and function of secretory PLA2 isolated from the venoms of Bothrops leucurus
Os Anti-inflamatórios não esteroidais (AINES) constituem uma classe de medicamentos com prescrição mundial, pois são fármacos que auxiliam na terapia de vários processos patológicos visto que oferecem ações farmacológicas: anti-inflamatória, analgésica e antipirética, como efeitos primários. A venda dos AINES no Brasil é de forma livre", por�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/08/2011
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11. Hide unhairing and characterization of commercial enzymes used in leather manufacture
The enzymatic treatment of hides in tannery processes is a promising technology. However, the reaction kinetics of commercial enzymes available to the leather industry are not fully understood and their activities have been mainly determined with model proteins such as casein as substrate, which are not of direct relevance for cattle hides. Therefore, it is
Brazilian Journal of Chemical Engineering. Publicado em: 2011-09
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12. Kinetic analysis of inhibitor actions on enzymes.
Um conjunto de dados, com alta dispersao experimental, de uma reacao de inibicao de uma peroxidase por quecertina foi usado para demonstrar o modo pelo qual e possivel, atraves de manipulacao grafica e de analise de regressao linear, obter resultados estatisticamente interpretaveis sobre o mecanismo da inibicao enzimatica. O modelo cinetico mais provavel da
Pesquisa Agropecuaria Brasileira. Publicado em: 2011