Álvaro Silva Lima
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View article: Enzyme–Support Interactions of <i>Burkholderia cepacia</i> Lipase Immobilized on Silica Using Molecular Docking and Multitechnique Characterization
Enzyme–Support Interactions of <i>Burkholderia cepacia</i> Lipase Immobilized on Silica Using Molecular Docking and Multitechnique Characterization Open
The influence of the microenvironment within enzyme-support complexes on the activity of Burkholderia cepacia lipase (BCL) immobilized on silica (SiO2-BCL) remains insufficiently understood. Without data on these interactions, it is challe…
View article: Cassia grandis L.f. Pods as a Source of High-Value-Added Biomolecules: Optimization of Extraction Conditions and Extract Rheology
Cassia grandis L.f. Pods as a Source of High-Value-Added Biomolecules: Optimization of Extraction Conditions and Extract Rheology Open
High-value-added biomolecules such as phenolic compounds and flavonoids from secondary metabolism and macromolecules such as sugars are the main constituents of several plants. Thus, this work aims to optimize the extraction of these biomo…
View article: Exploring the Potential of Licuri (Syagrus coronata) Using Sustainable Techniques and Solvents for Extracting Bioactive Compounds
Exploring the Potential of Licuri (Syagrus coronata) Using Sustainable Techniques and Solvents for Extracting Bioactive Compounds Open
Bioactive compounds are important for promoting human health, either by developing functional products that offer complementary health benefits or by incorporating them into nutritional supplements, beverages, fortified foods, and pharmace…
View article: Deep Eutectic Solvent-Based Aqueous Two-Phase Systems and Their Application in Partitioning of Phenol Compounds
Deep Eutectic Solvent-Based Aqueous Two-Phase Systems and Their Application in Partitioning of Phenol Compounds Open
This work studies the partition of phenolic compounds, namely caffeic acid, syringic acid, vanillic acid, ferulic acid, and vanillin, in aqueous two-phase systems (ATPSs) formed by acetonitrile and deep eutectic solvents (DESs) based on ch…
View article: Choline Chloride- and Organic Acids-Based Deep Eutectic Solvents: Exploring Chemical and Thermophysical Properties
Choline Chloride- and Organic Acids-Based Deep Eutectic Solvents: Exploring Chemical and Thermophysical Properties Open
Deep eutectic solvents (DES) have been the subject of numerous studies in the literature with the aim of replacing traditional solvents due to their green solvents' characteristics such as low toxicity, biodegradability, and versatility. D…
View article: Enhanced Oxygen Mass Transfer in Mixing Bioreactor Using Silica Microparticles
Enhanced Oxygen Mass Transfer in Mixing Bioreactor Using Silica Microparticles Open
This work aimed to improve the oxygen transfer mass coefficient (kLa) in mixing reactors, first evaluating the effect of agitation and aeration and then evaluating the influence of the size and concentration of silica microparticles. Silic…
View article: (314) 6-NITRODOPAMINE IS A MAJOR MEDIATION THAT POTENTIATES CONTRACTIONS OF HUMAN ISOLATED EPIDIDYMAL VAS DEFERENS INDUCED BY NORADRENALINE AND ELECTRIC FIELD STIMULATION
(314) 6-NITRODOPAMINE IS A MAJOR MEDIATION THAT POTENTIATES CONTRACTIONS OF HUMAN ISOLATED EPIDIDYMAL VAS DEFERENS INDUCED BY NORADRENALINE AND ELECTRIC FIELD STIMULATION Open
Introduction Contractions of the vas deferens have an important role in the propulsion of the spermatozoa and occur due to excitatory inputs from a network of sympathetic nerves. When stimulated, these nerves co-release noradrenaline and A…
View article: Partition of humic acids using alkaline aqueous two‐phase systems constituted of alcohol and hydroxides
Partition of humic acids using alkaline aqueous two‐phase systems constituted of alcohol and hydroxides Open
BACKGROUND Humic acids (HAs) are macromolecules classified within the group of humic substances that are mainly related to the agricultural and environmental sectors, but they have attracted interest from the medicine, pharmaceutical and c…
View article: Experimental and Computational Analysis of Synthesis Conditions of Hybrid Nanoflowers for Lipase Immobilization
Experimental and Computational Analysis of Synthesis Conditions of Hybrid Nanoflowers for Lipase Immobilization Open
This work presents a framework for evaluating hybrid nanoflowers using Burkholderia cepacia lipase. It was expanded on previous findings by testing lipase hybrid nanoflowers (hNF-lipase) formation over a wide range of pH values (5–9) and b…
View article: Integrated Process of Biosurfactant Production by Bacillus atrophaeus ATCC-9372 Using an Air-Lift Bioreactor Coupled to a Foam Fraction Column
Integrated Process of Biosurfactant Production by Bacillus atrophaeus ATCC-9372 Using an Air-Lift Bioreactor Coupled to a Foam Fraction Column Open
Biosurfactants are surface-active molecules, produced by several microorganisms, that possess unique properties such as low toxicity and biodegradability. Their application in various industries depends on their purity and their specific p…
View article: Water‐free two‐phase systems: phase equilibria and partitioning of vitamins from tomatoes (<scp><i>Solanum lycopersicum</i></scp>)
Water‐free two‐phase systems: phase equilibria and partitioning of vitamins from tomatoes (<span><i>Solanum lycopersicum</i></span>) Open
BACKGROUND The present work provides diagrams for water‐free two‐phase systems based on polypropylene glycol 2000 (PPG 2000) + [C 2 mim][OAc] + alcohols (primary: methanol, ethanol, 1‐propanol and 1‐butanol; secondary: 2‐propanol and 2‐but…
View article: Production of Human Milk Fat Substitutes by Lipase-Catalyzed Acidolysis: Immobilization, Synthesis, Molecular Docking and Optimization Studies
Production of Human Milk Fat Substitutes by Lipase-Catalyzed Acidolysis: Immobilization, Synthesis, Molecular Docking and Optimization Studies Open
Human milk fat (HMF) triacylglycerols (TAGs) mainly contain palmitic acid esterified at the sn-2 position while oleic and other unsaturated fatty acids are located at positions sn-1,3. This study aimed at the production of HMF substitutes …
View article: Comparative Study of Two Organic Wastes as Adsorbents in the Treatment of Water Rich in Nitrogen Compounds
Comparative Study of Two Organic Wastes as Adsorbents in the Treatment of Water Rich in Nitrogen Compounds Open
Background: The objective of this work was to propose the treatment of the wastewater from Laguna da Jansen using adsorptive processes of residues of pineapple crown and shrimp chitosan. Methods: Residual substrates were distributed in 11 …
View article: Biodegradation of Textile Dyes by Radish Peroxidase (&lt;i&gt;Raphanus sativus&lt;/i&gt; L.) Immobilized on Coconut Fiber
Biodegradation of Textile Dyes by Radish Peroxidase (<i>Raphanus sativus</i> L.) Immobilized on Coconut Fiber Open
The importance of biodegradation in the context of dye removal is presented as a function of the need to use enzyme immobilization as a key technology for effluent treatment. Immobilization is based on the need to improve the stability and…
View article: Use of Bioprinted Lipases in Microwave-Assisted Esterification Reactions
Use of Bioprinted Lipases in Microwave-Assisted Esterification Reactions Open
In this study, a comparative evaluation was performed in batch esterification reactions under conventional heating (CH) and assisted by microwave irradiation (MW) using bioprinted lipases. Microwave-irradiation-assisted reactions generally…
View article: Novel Nanobiocatalyst Constituted by Lipase from Burkholderia cepacia Immobilized on Graphene Oxide Derived from Grape Seed Biochar
Novel Nanobiocatalyst Constituted by Lipase from Burkholderia cepacia Immobilized on Graphene Oxide Derived from Grape Seed Biochar Open
The present research aims to study the process of immobilization of lipase from Burkholderia cepacia by physical adsorption on graphene oxide derived (GO) from grape seed biochar. Additionally, the modified Hummers method was used to obtai…
View article: Development of a Protein-Rich By-Product by 23 Factorial Design: Characterization of Its Nutritional Value and Sensory Analysis
Development of a Protein-Rich By-Product by 23 Factorial Design: Characterization of Its Nutritional Value and Sensory Analysis Open
The aim of this study was the development of a cereal bar based on bee pollen (BP), honey (H), and flour by-products (peel passion fruit flour—PPFF), generating an innovative product. BP is a protein-rich ingredient and can be used in the …
View article: FTIR AND TGA/DTG CHARACTERIZATION OF SUGARCANE WASTE
FTIR AND TGA/DTG CHARACTERIZATION OF SUGARCANE WASTE Open
Devido à grande produção de cana-de-açúcar no Brasil, há também quantidade significativa de resíduos produzidos. O objetivo deste estudo é caracterizar os resíduos (bagaço, folha e casca) da cana-de-açúcar quanto aos grupos funcionais e de…
View article: Development of Carbon-Based Support Using Biochar from Guava Seeds for Lipase Immobilization
Development of Carbon-Based Support Using Biochar from Guava Seeds for Lipase Immobilization Open
Enzymes are promising tools for achieving an environmentally benign process. However, enzymes are required to be immobilized on economically competent supports to be reusable and maintain their activity. In this work, the aim was to evalua…
View article: In Silico Evaluation of Enzymatic Tunnels in the Biotransformation of α-Tocopherol Esters
In Silico Evaluation of Enzymatic Tunnels in the Biotransformation of α-Tocopherol Esters Open
Motivation: α-Tocopherol is a molecule obtained primarily from plant sources that are important for the pharmaceutical and cosmetics industry. However, this component has some limitations such as sensitivity to oxygen, presence of light, a…
View article: Influence of seasonality on the physicochemical properties of Moringa oleifera Lam. Seed oil and their oleochemical potential
Influence of seasonality on the physicochemical properties of Moringa oleifera Lam. Seed oil and their oleochemical potential Open
The effect of abiotic factors, such as weather and climate can alter the properties of vegetable oils. In this work, the effects of the refining process and pre-drying of Moringa oleifera Lam. seeds collected in the dry and rainy seasons (…
View article: Issue Information
Issue Information Open
Effect of silver oxide nanoparticles
View article: Aqueous two‐phase systems in Latin America: perspective and future trends
Aqueous two‐phase systems in Latin America: perspective and future trends Open
Aqueous two‐phase systems (ATPS) have been demonstrated to be a simple and robust worldwide applied bioprocessing technology. From high value microscopic to macroscopic biological molecules obtained from a wide broad of matrices, ATPS have…
View article: Aspectos socioambientais e doenças relacionadas à água contaminada em comunidades vulneráveis no Nordeste do Brasil
Aspectos socioambientais e doenças relacionadas à água contaminada em comunidades vulneráveis no Nordeste do Brasil Open
The aim of this investigation was to analyse the perception of waterborne diseases and socioeconomic and environmental aspects of Quilombolas in vulnerable communities in Northeast Brazil, as the research was conducted in three vulnerable …
View article: Rutin-Functionalized Multi-Walled Carbon Nanotubes: Molecular Docking, Physicochemistry and Cytotoxicity in Fibroblasts
Rutin-Functionalized Multi-Walled Carbon Nanotubes: Molecular Docking, Physicochemistry and Cytotoxicity in Fibroblasts Open
Multi-Walled Carbon Nanotubes (MWCNT) have been functionalized with rutin through three steps (i. reaction step; ii. purification step; iii. drying step) and their physicochemical properties investigated with respect to morphological struc…
View article: Extraction and Characterization of Coffee Silverskin Oil and Its Valorization by Enzymatic Hydrolysis
Extraction and Characterization of Coffee Silverskin Oil and Its Valorization by Enzymatic Hydrolysis Open
This study investigated the coffee silverskin (CS) crude oil extraction process and characterization of physicochemical properties and enzymatic hydrolysis for fatty acids production. The soxhlet and ultrasonic extractions showed CS oil yi…
View article: Nutritional Quality of Moringa oleifera Seeds and Physicochemical Properties of Its Crude Oil
Nutritional Quality of Moringa oleifera Seeds and Physicochemical Properties of Its Crude Oil Open
This study aimed to evaluate the centesimal composition of Moringa oleifera Lam seeds and identify the physicochemical properties of crude oil extracted from Moringa oleifera Lam seeds. The values found for the centesimal composition sho…