Enzyme Based Process
Mostrando 1-12 de 147 artigos, teses e dissertações.
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1. OPTIMIZATION OF LIPASE IMMOBILIZATION ON MAGHEMITE AND ITS PHYSICO-CHEMICAL PROPERTIES
ABSTRACT Nanomaterial-based biocatalysts have emerged as current carriers suitable for enzyme immobilization. The nano-sized materials provide large surface area for enzyme attachment, thus increasing the probability for its efficient catalyst activity. By using magnetized nanomaterials, enhancement of the downstream processing is evident as it eases the imm
Braz. J. Chem. Eng.. Publicado em: 15/07/2019
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2. Enzyme-assisted extraction of polyphenols from green yerba mate
Resumo A extração de bioativos de plantas assistida por enzimas tem sido estudada como uma tecnologia verde alternativa. As carboidrases foram candidatas para melhorar o processo de extração de numerosos compostos bioativos de plantas. Os polifenóis são metabólitos secundários de plantas geralmente envolvidos em defesa contra diferentes tipos de estr
Braz. J. Food Technol.. Publicado em: 09/05/2019
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3. Subproteome of Lachesis muta rhombeata venom and preliminary studies on LmrSP-4, a novel snake venom serine proteinase
Abstract Background: Lachesis muta rhombeata is one of the venomous snakes of medical importance in Brazil whose envenoming is characterized by local and systemic effects which may produce even shock and death. Its venom is mainly comprised of serine and metalloproteinases, phospholipases A2 and bradykinin-potentiating peptides. Based on a previously report
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 15/04/2019
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4. Extracción optimizada y purificación parcial de invertasa aislada de S. Cerevisiae en puré de durazno
Abstract The extraction was performed using an autolysis process where enzymes degrade cell structures and release the cytoplasmic contents to the extracellular medium. The autolysis process was carried out in shake flasks with different agitation speeds (50 - 350 rpm) and the concentration of sodium bicarbonate (50 -350 mM NaHCO3) at 40 ° C for 24 hours, u
Rev. Bras. Frutic.. Publicado em: 22/03/2018
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5. Bioelectrooxidation of Ethanol Using NAD-Dependent Alcohol Dehydrogenase on Oxidized Flexible Carbon Fiber Arrays
Hierarchical 3-dimensional flexible carbon fiber (FCF) array is a candidate as flexible electrode for enzyme electrochemistry, with interesting properties for application in enzymatic biofuel cell and implantable biosensors. Here, we show the fabrication of oxidized FCF electrode (FCFO) based on chemical surface treatment, a wet oxidation method by using per
J. Braz. Chem. Soc.. Publicado em: 2017-09
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6. ENZYMATIC HYDROLYSIS AS AN ENVIRONMENTALLY FRIENDLY PROCESS COMPARED TO THERMAL HYDROLYSIS FOR INSTANT COFFEE PRODUCTION
Abstract Conventional production of instant coffee is based on solubilisation of polysaccharides present in roasted coffee. Higher process temperatures increase the solubilisation yield, but also lead to carbohydrate degradation and formation of undesirable volatile compounds. Enzymatic hydrolysis of roasted coffee is an alternative to minimize carbohydrate
Braz. J. Chem. Eng.. Publicado em: 2016-12
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7. Current applications and different approaches for microbial L-asparaginase production
ABSTRACT L-asparaginase (EC 3.5.1.1) is an enzyme that catalysis mainly the asparagine hydrolysis in L-aspartic acid and ammonium. This enzyme is presented in different organisms, such as microorganisms, vegetal, and some animals, including certain rodent's serum, but not unveiled in humans. It can be used as important chemotherapeutic agent for the treatmen
Braz. J. Microbiol.. Publicado em: 2016-12
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8. Characterization of polyphenol oxidase in two cocoa (Theobroma cacao L.) cultivars produced in the south of Bahia, Brazil
Abstract The reactions leading to the formation of precursors of chocolate flavor are performed by endogenous enzymes present in the cocoa seed. Polyphenol oxidase (PPO) presence and activity during fermentation of cocoa beans is responsible for the development of flavor precursors and is also implicated in the reduction of bitterness and astringency. Howeve
Food Sci. Technol. Publicado em: 19/01/2016
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9. Aproveitamento das fraÃÃes hemicelulÃsica e celulÃsica dos resÃduos do processamento do girassol para produÃÃo de bioetanol / Utilization of hemicellulosic and cellulosic fractions of waste from sunflower processing for bioethanol production
The researches on second generation ethanol, produced by agroindustrial wastes, have demanded special attention as a possible solution that can contribute to energy sustainability. Such production is based on lignocellulosic fiber conversion (cellulose and hemicellulose), which generates fermentable sugars that are biotransformed in bioethanol after some spe
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012
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10. Papel dos leucócitos na fisiopatologia da anemia falciforme / Role of leukocytes in sickle cell anemia pathophysiology
Sickle Cell Disease (SCD) is a disorder of hemoglobin synthesis, caused by a point mutation, and resulting in the production of abnormal sickle hemoglobin, HbS. The consequence of low oxygen levels is HbS polymerization, which is responsible for the vaso-occlusive phenomenon that is the hallmark of the disease. SCD is a chronic inflammatory disease character
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2011
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11. Triagem, aplicação e engenharia de biocatalisadores para transformações enantio e regiosseletivas / Screening, applying and engineering biocatalysts for enantio and regioselective transformations
Biocatalysts have been widely applied in recent decades for industrial processes yielding high value products under environmentally friendly reaction conditions. The development of biocatalysts often begins with screening to identify enzymes with suitable activities followed by characterization of the enzymes chemo-, regio- and stereoselectivity or stability
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/06/2011
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12. Aplicações da celulose de palha de cana-de-açúcar: obtenção de derivados partindo de celulose branqueada e de biocompósitos com poliuretana obtida a partir de óleo de mamona (Ricinus communis L.) / Applications of sugarcane straw cellulose: obtainment of derivatives from bleached cellulose and biocomposites with polyurethane obtained from castor oil (Ricinus communis L.)
The sugarcane processing generates various agricultural byproducts such as bagasse and straw, which is considered one of the main waste generated due to the mechanization of the harvest in Brazil. Thus, the availability and composition of sugarcane straw have driven a great effort to develop technologies that provide its effective utilization. This study aim
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/04/2011