The effect of protein fouling in microfiltration and ultrafiltration on permeate flux, protein retention and selectivity: A literature review

Marshall, A.D.; Munro, Peter A.; Trägårdh, Gun

doi:10.1016/0011-9164(93)80047-q

Cited by 409 publications

(255 citation statements)

References 88 publications

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“…Gel-layer formation results in a barrier to filtration above the membrane, greatly decreasing the speed of ultrafiltration and making the passage of small molecules into the filtrate increasingly difficult. 66,67 Column chromatography gives very low estimates of copper binding to LDL. 24,26,30 There is likely to be a problem with this technique, inasmuch as copper ions bind to Sephadex during column chromatography.…”

Section: Discussionmentioning

confidence: 99%

Measurement of Copper-Binding Sites on Low Density Lipoprotein

Roland

Patterson

Leake

2001

ATVB

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Abstract-Copper is often used to oxidize low density lipoprotein (LDL) in experiments in vitro and is a candidate for oxidizing LDL in atherosclerotic lesions. The binding of copper ions to LDL is usually thought to be a prerequisite for LDL oxidation by copper, although estimates of LDL copper binding vary widely. We have developed and validated an equilibrium dialysis assay in a MOPS-buffered system to measure copper binding to LDL and have found 38.6Ϯ0.7 (meanϮSEM, nϭ25) copper binding sites on LDL. The binding was saturated at a copper concentration of 10 mol/L at LDL concentrations of up to 1 mg protein/mL. Copper-binding capacity increased progressively and markedly when LDL was oxidized to increasing extents. Chemical modification of histidyl and lysyl residues on apolipoprotein B-100 reduced the number of binding sites by 56% and 23%, respectively. As an example of the potential of this method to assess the effects of antioxidants on copper binding to LDL, we have shown that the flavonoids myricetin, quercetin, and catechin (but not epicatechin, kaempferol, or morin), at concentrations equimolar to the copper present (10 mol/L), significantly decreased copper binding to LDL by 82%, 56%, and 20%, respectively.

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Section: Discussionmentioning

confidence: 99%

Measurement of Copper-Binding Sites on Low Density Lipoprotein

Roland

Patterson

Leake

2001

ATVB

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“…However, a major challenge of these operations is membrane fouling by proteins and other biomolecules in the feed stream [13][14]. Protein has been identified as one of the major membrane foulants in wastewater treatment and reclamation applications [19][20].…”

Section: Overview Of Membranementioning

confidence: 99%

“…Ultrafiltration Membrane Ultrafiltration (UF) membrane separation process used in a wide range of application, including water/wastewater treatment, reverse osmosis pretreatment and separations in the food, dairy, paper, textile, chemical and biochemical industries [9,[13][14]. UF uses a finely porous membrane to separate water and microsolutes from macromolecules and colloids [9].…”

Section: Overview Of Membranementioning

confidence: 99%

Short Review of Ultrafiltration of Polymer Membrane as a Self-Cleaning and Antifouling in the Wastewater System

Mohamad

Idris

Abdullah

et al. 2013

AMR

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This paper focuses on ultrafiltration polymer membrane for wastewater systems as a selfcleaning and antifouling. Fouling is one of the most important problems in almost all membrane processes. In this review, membrane antifouling and self-cleaning properties can be improved by using titanium dioxide (TiO 2 ) particles and UV radiation on membrane structure and surface. Coating TiO 2 particles on membrane surface is an advanced method to minimize membrane fouling. Hence, these properties can be improved the membrane performance.

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“…Pour palier à cet obstacle, les recherches s'orientent, depuis quelques années, vers la fabrication de membranes hydrophobes dotées de groupes hydrophiles. L'incorporation de ces groupes limite significativement le colmatage des membranes (Marshall et al, 1993 ;Goosen et al, 2004 ;Jung, 2004 ;Hilal et al, 2005). Par ailleurs, Ulbricht (2006) a affirmé récemment que les membranes dotées de charges superficielles négatives ont un effet bénéfique sur la séparation des milieux biologiques, surtout au voisinage de pH neutre, où la plupart des protéines et des composants cellulaires porte des charges négatives.…”

Section: Introductionunclassified

L’Etat des Ressources En Eau au Maghreb En 2009

Filali-Meknassi

2018

Preprint

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L’eau, en tant que ressource, est un bien très important et surtout fondamental pour tous les pays. En effet, en plus d’être indispensable à la vie et à la santé de l’être humain, l’eau est un vecteur du développement socio-économique. Le présent ouvrage, publié par le Bureau Multipays de l’UNESCO à Rabat, regroupe les expériences de plusieurs spécialistes en eau de la région du Maghreb. L’objectif d’un tel ouvrage est de faire partager le vécu des différents experts des pays du Maghreb et de rassembler les visions de chacun pour permettre de propager de nouvelles idées visant un meilleur système de gestion de l’eau au Maghreb. IWRM

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The effect of protein fouling in microfiltration and ultrafiltration on permeate flux, protein retention and selectivity: A literature review

Cited by 409 publications

References 88 publications

Measurement of Copper-Binding Sites on Low Density Lipoprotein

Measurement of Copper-Binding Sites on Low Density Lipoprotein

Short Review of Ultrafiltration of Polymer Membrane as a Self-Cleaning and Antifouling in the Wastewater System

L’Etat des Ressources En Eau au Maghreb En 2009

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