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  • The effect of pH and ionic strength on the adsorption of β-lactoglobulin onto well-characterized silicon

    Creator:
    Luey, Ja-Kael
    Abstract:
    The effect of pH and ionic strength on the equilibrium adsorptive behavior of β-lactoglobulin onto hydrophobic and hydrophilic silicon surfaces was studied using ellipsometry. Plots of amount adsorbed (μg protein/cm²) as a function of protein concentration (mg/ml) exhibited attainment of plateau values beyond a protein concentration of 0.250 mg/ml. At...
    Resource Type:
    Masters Thesis
    Full Text:
    and Ionic Strength on the Adsorption of 13Lactoglobulin onto Well-Characterized Silicon Abstract

  • The influence of surface functional groups on β-lactoglobulin adsorption equilibrium

    Creator:
    Al-Makhlafi, Hamood K.
    Abstract:
    Interactions between proteins and contact surfaces can have important implications in the food industry. Such interactions contribute to the course of fouling of membrane surfaces and they appear to mediate bacterial and spore adhesion to some degree as well. In addition to protein and solution properties, interfacial behavior is strongly...
    Resource Type:
    Masters Thesis
    Full Text:
    . p-lactoglobulin adsorption isotherms constructed for silicon surfaces treated with 0.82, 3.3, and

  • Elution of adsorbed proteins at hydrophobic and hydrophilic surfaces by dodecyltrimethylammonium bromide and sodium dodecyls sulfate

    Creator:
    Vinaraphong, Pravina
    Abstract:
    Adsorption kinetic data recorded for α-lactalbumin, β-casein, β-lactoglobulin, bovine serum albumin and lysozyme at silianized silica surfaces of low and high hydrophobicity, along with a simple model for adsorption and surfactant-mediated elution of protein, were used to analyze the removal of each protein by sodium dodecylsulfate (SDS) and dodecyltrimethylammonium bromide...
    Resource Type:
    Masters Thesis
    Full Text:
    surfaces of low and high hydrophobicity, along with a simple model for adsorption and surfactant-mediated

  • Protein adsorption on chitosan-polyanion complexes : application to aqueous food processing wastes

    Creator:
    Savant, Vivek
    Abstract:
    Chitosan has been proposed as a "natural" coagulating agent to solve wastewater problems. The main hindrance in this commercial chitosan application has been its low cost effectiveness. The hypothesis in our research is that chitosan complexes with natural polyanions is more effective than chitosan alone, particularly in recovering low concentration...
    Resource Type:
    Dissertation
    Full Text:
    ) Turbidity reduction and (b) protein adsorption at 150 mg polymer/L SWW 78 V.2 (a) Turbidity

  • Surfactant interactions with recombinant factor VIII at the air/water interface

    Creator:
    Chu, Liping
    Abstract:
    The surface tension kin'ti4tnd ste'dy state behavior exhibited by mixtures of selected surfactants with a recombinant Factor VIII (rFVIII) were evaluated with automated interfacial tensiometry. In particular, fresh solutions of rFVIII with different concentrations of Tween 80, sodium dodecylsulfate (SDS), or dodecyltrimethylammonium bromide (DTAB) were prepared and their surface tension...
    Resource Type:
    Masters Thesis
    Full Text:
    adsorption and subsequent rearrangement (including protein-surfactant dissociation) at the interface. The

  • Molecular origins of surfactant-mediated stabilization of protein

    Creator:
    Lee, Hyo Jin
    Abstract:
    Nonionic surfactants are commonly used to stabilize proteins during upstream and downstream processing and drug formulation. Surfactants stabilize the proteins through two major mechanisms: (i) their preferential location at nearby interfaces, in this way precluding protein adsorption; and/or (ii) their association with protein into "complexes" that prevent proteins from interacting...
    Resource Type:
    Dissertation
    Full Text:
    and PS 80) will occur with surfactants that stabilize protein mainly by their own adsorption at