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Reversible aqueous two-phase systems

Separation of dyes with reversible aqueous biphasic systems

Separation of dyes with reversible aqueous biphasic systems

... IL-rich phase, the extraction efficiencies achieved here are larger and were attained with aqueous ...dye aqueous solution) ...an aqueous phase to hexafluorophosphate- and ...

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Thermoreversible (Ionic-Liquid-Based) Aqueous Biphasic Systems

Thermoreversible (Ionic-Liquid-Based) Aqueous Biphasic Systems

... their reversible behaviour was further ...the phase separation. As the systems is cooled down to 25 °C the system becomes monophasic ...This reversible behaviour can be applied as many times ...

7

Development of aqueous (micellar) two phase systems to continously purify macroalgae compounds

Development of aqueous (micellar) two phase systems to continously purify macroalgae compounds

... hydrophobic interaction, chromatography on hydroxylapatite, among others.[23][18][20] Ammonium sulphate precipitation is commonly used as a first purification step, where different saturation percentages of salt are used ...

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Reversible-equivariant systems and matricial equations

Reversible-equivariant systems and matricial equations

... In particular, using tools from group theory and symbolic computing, we exhibit the involutions used in a local study of reversible-equivariant vector fields. Based on such approach we present, for each element in ...

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Liquid-liquid equilibria in aqueous two-phase ethanol/salt systems at different temperatures and their application to anthocyanins extraction

Liquid-liquid equilibria in aqueous two-phase ethanol/salt systems at different temperatures and their application to anthocyanins extraction

... the systems composed of ethanol, sodium citrate and water and of ethanol, ammonium sulfate and water were obtained by turbidimetric titration (Albertsson, 1986) at atmospheric pressure and temperatures of 15, 25 ...

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Extraction of homologous and isomeric organic compounds by two-phase aqueous extraction.

Extraction of homologous and isomeric organic compounds by two-phase aqueous extraction.

... BY TWO-PHASE AQUEOUS ...the two-phase domain and for a given solute, extraction percentage (E%), concentration ratio, phase volume ratio, and equilibrium partition coefficient (K ...

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Antibodies purification using aqueous micellar two-phase systems

Antibodies purification using aqueous micellar two-phase systems

... mandatory. Aqueous micellar two-phase systems (AMTPS) are a special type of aqueous two-phase systems that comprise micellar solutions of surfactants for ...

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An alternative method to isolate protease and phospholipase A2 toxins from snake venoms based on partitioning of aqueous two-phase systems

An alternative method to isolate protease and phospholipase A2 toxins from snake venoms based on partitioning of aqueous two-phase systems

... the two-phase ...bottom phase – from the first – was transferred into a tube containing 5 mL of a pure top phase (from a previously prepared phase system obtained under identical ...

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Isolation of a lipase-producing Trichosporon spp and enzyme extraction by two-phase aqueous system

Isolation of a lipase-producing Trichosporon spp and enzyme extraction by two-phase aqueous system

... A lipase-producing yeast strain isolated from crude cheese and identified as Trichosporon spp produced 7.3 U/mL (59.3 U/µg) after 72h of cultivation. Lipase showed optimum activity at pH 7.0-8.0 and 45-50ºC. Extraction ...

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Recovery of pectinases from Aspergillus niger using aqueous two-phase systems / Recuperação de pectinases de Aspergillus niger usando sistemas aquosos bifásicos

Recovery of pectinases from Aspergillus niger using aqueous two-phase systems / Recuperação de pectinases de Aspergillus niger usando sistemas aquosos bifásicos

... was tested with different molecular weights PEG at pH 6.0 and pH 7.0. For this study were chosen random points from binodal curve based on results reported by Minami [27]. The results for PEG 1.5, 4.0, 6.0, 8.0 and 10.0 ...

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Aqueous phase processing of secondary organic aerosols

Aqueous phase processing of secondary organic aerosols

... tial precursors are small multifunctional carbonyls (glycolaldehyde, hydroxyacetone, glyoxal, methylglyoxal, hydroxymethylglyoxal, oxopropanedial, 2,3-dioxobutanal) that have been specifically studied by Healy et al. ...

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Progress in the Development of Aqueous Two-Phase Systems Comprising Ionic Liquids for the Downstream Processing of Protein- Based Biopharmaceuticals

Progress in the Development of Aqueous Two-Phase Systems Comprising Ionic Liquids for the Downstream Processing of Protein- Based Biopharmaceuticals

... polymer-salt systems as a way to increase the purification factors of a clinically relevant enzyme - ...this phase, resulting in a decrease of contaminant proteins and higher purification ...

6

Bioconversion of apigenin-7-O-β-glucoside in aqueous two-phase system

Bioconversion of apigenin-7-O-β-glucoside in aqueous two-phase system

... model aqueous two-phase system were conducted to find out if apigenin and apigenin-7-O-β-glucoside show affinity to the top and the bottom phase, respectively, ...the systems with ...

6

Partition of Glucose Oxidase from Aspergillus niger in Aqueous Two-Phase Systems Based on Salt and Polyethylene Glycol

Partition of Glucose Oxidase from Aspergillus niger in Aqueous Two-Phase Systems Based on Salt and Polyethylene Glycol

... in aqueous-two phase systems will also lead to the ability to predict the partitioning of specific materials (Silva and Franco, ...salt phase which promotes mass transfer, and as a ...

6

Enhanced performance of polymer-polymer aqueous two-phase systems using ionic liquids as adjuvants towards the purification of recombinant proteins

Enhanced performance of polymer-polymer aqueous two-phase systems using ionic liquids as adjuvants towards the purification of recombinant proteins

... ATPS phase and BCA was used to determine the total proteins content in all ...PEG-rich phase were determined, allowing to evaluate the purification performance of ATPS with distinct ILs as ...PEG-rich ...

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Reversible Data Hiding Based on Two-level HDWT Coefficient Histograms

Reversible Data Hiding Based on Two-level HDWT Coefficient Histograms

... The two-level HDWT algorithm utilizes the four-band sub-band coding system to decompose an image into a set of different frequency sub-bands. As illustrated in Figures 1 and 2, the size of each sub-band is one ...

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Extraction of antioxidants with aqueous biphasic systems

Extraction of antioxidants with aqueous biphasic systems

... using aqueous biphasic systems (ABS), have been ...conventional systems that are mostly composed of polymers and inorganic ...extraction systems by variation of their ions and so to increase ...

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Two-phase deformations within the framework of phase transition zones

Two-phase deformations within the framework of phase transition zones

... of phase transition zones (PTZ) formed in strain-space by all deformations which can exist on the equilib- rium ...a phase diagram or yield surface in ...to phase transformations on different loading ...

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Development and optimization of aqueous phase CO chemisorption technique

Development and optimization of aqueous phase CO chemisorption technique

... The goal of this research was to optimize and develop a valid chemisorption method to determine the available active surface area in the aqueous phase. It is possible to calculate the dispersion using this ...

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Two-phase flow in netmix reactors

Two-phase flow in netmix reactors

... the two fluids, which enhances mass transfer between ...gas phase exhibiting an uneven velocity distribution, marked by various accelerations and decelerations throughout the ...particular phase is ...

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