depletion stabilization and depletion flocculation researchgate

Malt induced premature yeast flocculation: its origins, detection

Malt induced premature yeast flocculation: its origins, detection and impacts upon fermentation Apostolos G. Panteloglou BSc, MSc Thesis submitted to the University of Nottingham i Abstract Premature yeast flocculation (PYF) is a sporadic problem encountered Get price

Unravelling the mechanism of stabilization and

microfibrillated cellulose, depletion interaction, flocculation, Pickering emulsion, emulsion stabilization Language English Type Article Abstract It is long known that oil-in-water emulsions can be stable against coalescence in homogenized plant cell wall Get price

Separation of Colloidal Particles in a Packed Column using Depletion

Separation of Colloidal Particles in a Packed Column using Depletion Forces Francisco J. Guzman ABSTRACT Depletion forces were used to separate an equinumber density binary dispersion of 1.5 and 0.82 m polystyrene sulfate (PS) particles. Experiments Get price

Malt induced premature yeast flocculation: its origins, detection

Malt induced premature yeast flocculation: its origins, detection and impacts upon fermentation Apostolos G. Panteloglou BSc, MSc Thesis submitted to the University of Nottingham i Abstract Premature yeast flocculation (PYF) is a sporadic problem encountered Get price

Reduction of surface fat formation on spray

If too little or too much of the polysaccharide was added, bridging flocculation or depletion flocculation, respectively, occurred inside the emulsions. The best stability and minimal fat globule size were obtained for a carrageenan content of 0.3% w/w. Get price

Stabilization of multiple emulsions using natural surfactants

Stabilization of multiple emulsions using natural surfactants H. Ghasemi 1, H. Mazloomi 2, and H. Hajipour2,* incapable of inducing depletion flocculation. At high R, displacement of protein from the oil–water interface results in emulsion restabilization Get price

Reduction of surface fat formation on spray

If too little or too much of the polysaccharide was added, bridging flocculation or depletion flocculation, respectively, occurred inside the emulsions. The best stability and minimal fat globule size were obtained for a carrageenan content of 0.3% w/w. Get price

Production and stabilization of a flaxseed oil multi

A clear separation of the oil phase at low protein contents and destabilizing by depletion flocculation at high protein content were observed. Extensive droplet flocculation and coalescence were determined until the pectin concentration reached 0.5 g/100 g solution for the secondary emulsion. Get price

STABILITY OF COLLOIDAL SYSTEMS, AGGREGATION,

The reversal of coagulation or flocculation, i.e. the dispersion of aggregates to form a colloidally stable suspension or emulsion, is called deflocculation (sometimes peptization). The rate of aggregation is in general determined by the frequency of collisions and the probability of cohesion during collision. Get price

Polymeric stabilization of colloidal dispersions

Polymeric stabilization of colloidal dispersions Colloid Science : A Series of Monographs. 2 Volume 3 of Colloids science, ISSN 0305-9723 Volume 3 of Kodansha Scientific Books R.H.Ottewill and R.L.Rowell Author Donald H. Napper Edition illustrated Publisher Get price

Effect of various mixing devices and patterns on flocculation

Effect of various mixing devices and patterns on flocculation kinetics in water treatment by Md. Wahid Sajjad A Dissertation Submitted to the Graduate Faculty in Partial Fulfillment of the Requirements for the Degree of DOCTOR OF PHILOSOPHY Department; Civil Get price

Introduction to Applied Colloid and Surface Chemistry

depletion flocculation 277 Derjaguin–Landau–Verwey–Overbeek (DLVO) theory colloid stability 211, 212–214, 230–233, 243–255, 264–265, 273–277 critical coagulation concentration 213–214, 230–233, 244–247, 250–252 diseases caused by protein aggregation Get price

Haloing, flocculation, and bridging in colloid

TY - JOUR T1 - Haloing, flocculation, and bridging in colloid-nanoparticle suspensions AU - Scheer, Everett N. AU - Schweizer, Kenneth S. PY - 2008/5/8 Y1 - 2008/5/8 N2 - Integral equation theory with a hybrid closure approximation is employed to study the Get price

Flow Assurance Principles in Oil Gas Industries

The polymeric aggregation of colloidal dispersion of this nature is known as (Depletion Flocculation Mechanism) as described by D.H. Napper in his book entitled Polymeric Stabilization of Colloidal Dispersions, Academic Press, New York,1983. Get price

DEVELOPMENT OF LONG

It was postulated that excess unabsorbed protein caused depletion flocculation leading to creaming of oil droplets, which was confirmed using confocal laser scanning microscopy. Calculation of depletion interaction energy showed an increase in attraction with protein concentration and decrease with a reduction in droplet size, making NEs more resistant to flocculation than conventional emulsions. Get price

Reduction of surface fat formation on spray

If too little or too much of the polysaccharide was added, bridging flocculation or depletion flocculation, respectively, occurred inside the emulsions. The best stability and minimal fat globule size were obtained for a carrageenan content of 0.3% w/w. Get price

Protein Fibrils Induce Emulsion Stabilization.

2016/3/8Results showed that above a minimum fibril concentration depletion flocculation occurred, leading to oil droplet aggregation and enhanced creaming of the emulsion. Upon further increasing the concentration of the protein fibrils, the emulsions were stabilized. Get price

Depletion Stabilization in Nanoparticle–Polymer

2015/2/5As PVA concentration increases, the microstructure evolves from bridging flocculation, steric stabilization, depletion flocculation to depletion stabilization. To our surprise, when depletion stabilization occurs, the suspension shows the stabilization at the cluster length scale, while maintaining fractal aggregates at the particle length scale. Get price

Production and stabilization of a flaxseed oil multi

A clear separation of the oil phase at low protein contents and destabilizing by depletion flocculation at high protein content were observed. Extensive droplet flocculation and coalescence were determined until the pectin concentration reached 0.5 g/100 g solution for the secondary emulsion. Get price

Department Materials Science Engineering Group Inorganic

2.3 Steric stabilization mechanism 11 2.4 Stability of the colloidal particles in steric stabilization 12 2.4.1 The critical flocculation point (CFPT) 12 2.4.2 Factors affecting CFPT 12 2.5 Adsorption of polymers from solution 13 3 Flocculation by bridging 16 Get price

Influence of Adsorbed and Nonadsorbed Polymer

Analyses of the rheological data, that showed viscosity-increases and viscosity-reduction due to free PEG concentrations revealed a transition from depletion flocculation to depletion stabilization that contributed to the flow properties of the suspensions. Get price

Flow Assurance Principles in Oil Gas Industries

The polymeric aggregation of colloidal dispersion of this nature is known as (Depletion Flocculation Mechanism) as described by D.H. Napper in his book entitled Polymeric Stabilization of Colloidal Dispersions, Academic Press, New York,1983. Get price

Gelation of Soy Milk with Hagfish Exudate Creates a

2016/1/25Radford SJ, Dickinson E. Depletion flocculation of caseinate-stabilised emulsions: What is the optimum size of the non-adsorbed protein nano-particles? Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2004;238(1–3):71–81. Get price

Drug

2017/7/27This supports the clinical use of arginine depletion as anti-cancer therapy but its exact efficacy in various cancers requires further investigation. However, clinical application of these enzymes is usually hindered by common problems including allergy to these foreign proteins, off-target cytotoxicity, short half-life and rapidly emerging chemoresistance. Get price

Aggregation by depletion attraction in cultures of bacteria

In contrast, in depletion, the polymer molecules (succinoglycan) push out the cells by 'crowding'; thus, at higher cell concentration, less polymer is needed for phase separation, as observed here (figure 5b) and in model systems in which the operation of the]). Get price