flocculation of yeast suspensions by a cationic flocculant

flocculation of yeast suspensions by a cationic flocculant

Flocculation of yeast suspensions by a cationic flocculant

Suspensions of yeasts which are negatively charged have been flocculated using a cationic polyelectrolyte. The initial rate of flocculation and growth of the floc particles were dependent on the flocculant dosage and flocculation time. During flocculation, the cationic polyelectrolyte chains can adsorb via electrostatic interactions onto the

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(pdf) flocculation of yeast suspension by a cationic polymer

(PDF) Flocculation of yeast suspension by a cationic polymer

In this study four different cationic polyelectrolytes of different molecular weight and charge densities were used to flocculate yeast suspensions to determine the effect of flocculant dose

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flocculation of yeast suspensions by a cationic flocculant

Flocculation of yeast suspensions by a cationic flocculant

Suspensions of yeasts which are negatively charged have been flocculated using a cationic polyelectrolyte. The initial rate of flocculation and growth of the floc particles were dependent on the

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flocculation of yeast suspensions by a cationic flocculant

Flocculation of yeast suspensions by a cationic flocculant

title = "Flocculation of yeast suspensions by a cationic flocculant", abstract = "Suspensions of yeasts which are negatively charged have been flocculated using a cationic polyelectrolyte. The initial rate of flocculation and growth of the floc particles were dependent on the flocculant dosage and flocculation time.

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influence of cationic flocculant properties on the

Influence of cationic flocculant properties on the

In addition, previous studies have shown that cationic polyelectrolytes are successful in flocculating negatively charged yeast cells [5], [6], [7]. In this study, we have investigated the flocculation of yeast cell suspensions by four different cationic polyelectrolytes. We have determined the change in floc size, morphology and zeta potential

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the strength of yeast flocs produced by the cationic

The strength of yeast flocs produced by the cationic

The strength of flocs formed by the chitosan induced flocculation of yeast depends on the nature of the suspending medium. The addition of anionic polymers to the medium prior to flocculation by the cationic polyelectrolyte chitosan can increase the resilience of the flocs.

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induced flocculation of animal cells in suspension culture

Induced flocculation of animal cells in suspension culture

Recycle unit operations for suspension cell cultures may be improved by flocculation of the cells. A flocculant search was conducted, and it was found that where strongly cationic polymers were sever

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(pdf) flocculation of yeast suspension by a cationic polymer

(PDF) Flocculation of yeast suspension by a cationic polymer

In this study four different cationic polyelectrolytes of different molecular weight and charge densities were used to flocculate yeast suspensions to determine the effect of flocculant dose

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influence of cationic flocculant properties on the

Influence of cationic flocculant properties on the

Influence of cationic flocculant properties on the flocculation of yeast suspensions (2009). In M. Tade (Ed.), Engineering our Future: Are we up to the Challenge (Perth, Western Australia ed., Vol. CD ROM, pp. 6 pp). Engineers Australia.

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flocculation of clay suspensions by anionic and cationic

Flocculation of Clay Suspensions by Anionic and Cationic

For suspensions made with demi-water, a lower optimum flocculant dose (<1 mg/g) than for suspensions prepared in tap water (2.28 mg/g) was observed. At these lower salinities, the supernatant remained turbid in all the experiments and was, therefore, not a good measure for optimal anionic based flocculation.

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the strength of yeast flocs produced by the cationic

The strength of yeast flocs produced by the cationic

The strength of flocs formed by the chitosan induced flocculation of yeast depends on the nature of the suspending medium. The addition of anionic polymers to the medium prior to flocculation by the cationic polyelectrolyte chitosan can increase the resilience of the flocs.

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induced flocculation of animal cells in suspension culture

Induced flocculation of animal cells in suspension culture

Recycle unit operations for suspension cell cultures may be improved by flocculation of the cells. A flocculant search was conducted, and it was found that where strongly cationic polymers were sever

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enhanced microfiltration of yeast by flocculation

Enhanced microfiltration of yeast by flocculation

The results obtained here show that for flocculated yeast suspensions, the absorbance of the supernatant after centrifugation may be used to determine the optimum flocculant dose. Further, the larger the model polymer size, the higher the permeate flux during microfiltration providing very large flocs which could plug the lumens of the hollow

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flocculation of semidilute calcite dispersions induced by

Flocculation of Semidilute Calcite Dispersions Induced by

Mixtures of cationic starch and anionic polyacrylate used for flocculation of calcium carbonate—influence of electrolytes. Colloids and Surfaces A: Physicochemical and Engineering Aspects 2004 , 234 (1-3) , 85-93.

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clarification / flocculation | wyeast laboratories

Clarification / Flocculation | Wyeast Laboratories

A hazy beer is commonly blamed on yeast that will not settle, but that is one of several possibilities. Yeast does not stay in suspension without help. To get an idea of the complexities involved in clarification, we will look at several factors that affect yeast flocculation, but first we will define flocculation. Flocculation:

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flocculation of clay suspensions by anionic and cationic

Flocculation of Clay Suspensions by Anionic and Cationic

For suspensions made with demi-water, a lower optimum flocculant dose (<1 mg/g) than for suspensions prepared in tap water (2.28 mg/g) was observed. At these lower salinities, the supernatant remained turbid in all the experiments and was, therefore, not a good measure for optimal anionic based flocculation.

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influence of cationic flocculant properties on the

Influence of cationic flocculant properties on the

Influence of cationic flocculant properties on the flocculation of yeast suspensions (2009). In M. Tade (Ed.), Engineering our Future: Are we up to the Challenge (Perth, Western Australia ed., Vol. CD ROM, pp. 6 pp). Engineers Australia.

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flocculation of semidilute calcite dispersions induced by

Flocculation of Semidilute Calcite Dispersions Induced by

Mixtures of cationic starch and anionic polyacrylate used for flocculation of calcium carbonate—influence of electrolytes. Colloids and Surfaces A: Physicochemical and Engineering Aspects 2004 , 234 (1-3) , 85-93.

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the flocculation of yeast with chitosan in complex

The flocculation of yeast with chitosan in complex

The strength of yeast flocs produced by the cationic flocculant chitosan: effect of suspension medium and of pretreatment with anionic polyelectrolytes. Weir S, Ramsden DK, Hughes J, Thomas Fle. Biotechnology techniques., 8(2):129-132, 01 Feb 1994 Cited by: 0 articles | AGR: IND20386676

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flocculation - wikipedia

Flocculation - Wikipedia

Flocculation, in the field of chemistry, is a process by which colloidal particles come out of suspension to sediment under the form of floc or flake, either spontaneously or due to the addition of a clarifying agent. The action differs from precipitation in that, prior to flocculation, colloids are merely suspended, under the form of a stable

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clarification / flocculation | wyeast laboratories

Clarification / Flocculation | Wyeast Laboratories

A hazy beer is commonly blamed on yeast that will not settle, but that is one of several possibilities. Yeast does not stay in suspension without help. To get an idea of the complexities involved in clarification, we will look at several factors that affect yeast flocculation, but first we will define flocculation. Flocculation:

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[flocculation of kaolin suspensions by chitosan grafted

[Flocculation of kaolin suspensions by chitosan grafted

Flocculation of kaolin suspensions using ternary polymerization flocculant (CAS) synthesized by chitosan (CTS), acrylamide and ethyl acrylate quaternary ammonium salt was investigated in lab-scale. It was found that CAS had more advantages such as higher flocculation efficiency, lesser dosage and wider pH flocculation range than CTS.

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optimization of enhanced flocculation for treating sediment

Optimization of Enhanced Flocculation for Treating Sediment

[7] Wickramasinghe S.R. ,et al.Influence of cationic flocculant properties on the flocculation of yeast suspensions[J].Advanced Powder Technology,2010,21(4): 374-379. DOI: 10.1016/j.apt.2010.02.006

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