Buscar
Mostrando ítems 81-90 de 1061
A hydration shell-based thermodynamic model for aqueous two-phase systems
(Canadian Soc Chemical EngineeringOttawaCanadá, 2004)
An extension of the Pitzer equation for the excess Gibbs energy of aqueous electrolyte systems to aqueous polyelectrolyte solutions
(ELSEVIER SCIENCE BV, 2008)
Pitzer`s equation for the excess Gibbs energy of aqueous solutions of low-molecular electrolytes is extended to aqueous solutions of polyelectrolytes. The model retains the original form of Pitzer`s model (combining a ...
Extraction of natural red colorants from the fermented broth of Penicillium purpurogenum using aqueous two-phase polymer systems
(American Institute of Chemical Engineers, 2015)
Safety concerns related to the increasing and widespread application of synthetic coloring agents have increased the demand for natural colorants. Fungi have been employed in the production of novel and safer colorants. ...
Liquid-liquid extraction of commercial and biosynthesized nisin by aqueous two-phase micellar systems
(ELSEVIER SCIENCE INC, 2008)
Nisin is a natural additive for conservation of food, and can also be used as a therapeutic agent. Nisin inhibits the outgrowth of spores, the growth of a variety of Gram-positive and Grain-negative bacteria. In this paper ...
Structural and functional analysis of Aspergillus niger xylanase to be employed in polyethylenglycol/salt aqueous two-phase extraction
(Elsevier, 2016-01)
The structure and enzymatic activity of Aspergillus niger xylanase were evaluated in different media to establish an appropriate protocol for the extraction of the enzyme in polymer/salt aqueous two-phase systems. Different ...
Equilibrium phase behavior of poly(ethylene glycol) plus potassium phosphate plus water two-phase systems at various pH and temperatures
(Amer Chemical SocWashington, 1997)
Partitioning of xylanase from Thermomyces lanuginosus in PEG/NaCit aqueous two-phase systems: Structural and functional approach
(Academic Press Inc Elsevier Science, 2017-01)
The structure and catalytic activity of xylanase from Thermomyces lanuginosus were studied in different media (containing polyethylene glycol -PEG- or salt) at different temperatures. The aim was to study how the native ...
Performance of a pulsed-cap microcolumn for protein extraction
(Brazilian Soc Chemical EngSao PauloBrasil, 2003)
Influence of salts on the coexistence curve and protein partitioning in nonionic aqueous two-phase micellar systems
(Brazilian Society of Chemical Engineering, 2014-12-01)
Aqueous two-phase micellar systems (ATPMS) can be exploited in separation science for the extraction/purification of desired biomolecules. Prior to phase separation the surfactant solution reaches a cloud point temperature, ...