Abstract
Membrane separation techniques are extensively used in dairy industry both for milk and cheese whey processing. However, cheese whey might still be considered as a problematic waste despite its high content of many valuable substances, such as proteins, lactose or minerals, which can be further used, e.g. in human nutrition, pharmacy or biotechnologies. Another problem, which food technologists have to face, is variable quality, composition and properties of food materials bringing high demands on manufacturing industry. In this paper, filtration kinetics and separation efficiency during purification and fractionation of cheese whey (sweet and salty) from Czech dairies by pilot-plant filtration (Bollene, France) was studied using tubular membranes (Membralox, USA). Various mineral membranes’ cut-offs were tested and all experiments ran in the retentate recycling mode. The obtained mass concentration factors were between 1.9 and 16.5. Steady state fluxes were calculated from the experimental data using a mathematical model. Fine ultrafiltration on a 5 kDa membrane gave steady state fluxes of 14-19 L m-2 h-1. The coarse pre-filtration on 100 nm, 200 nm or 500 nm membranes showed various permeate fluxes between 22 L m-2 h-1 and 153 L m-2 h-1. Despite the high pore sizes of the used membranes, lactose was partially rejected by all membranes tested.
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Institute of Chemistry, Slovak Academy of Sciences
Articles in the same Issue
- Synthesis and properties of new N,N′-phenyltetrazole podand
- Molecular diagnosis of Pompe disease using MALDI TOF/TOF and 1H NMR
- Erythritol biosynthesis from glycerol by Yarrowia lipolytica yeast: effect of osmotic pressure
- Cloning and expression of two genes coding endo-β-1,4-glucanases from Trichoderma asperellum PQ34 in Pichia pastoris
- Adsorption desulphurisation of dimethyl sulphide using nickel-based Y zeolites pretreated by hydrogen reduction
- Equilibrium and kinetics of wetting hydrophobic microporous membrane in sodium dodecyl benzene sulphonate and diethanolamine aqueous solutions
- Separation of urea adducts in the analysis of complex mineral fertilisers
- Cheese whey tangential filtration using tubular mineral membranes
- Characterization of the quality of novel rye-buckwheat ginger cakes by chemical markers and antioxidant capacity
- A new high-temperature inorganic–organic proton conductor: lanthanum sulfophenyl phosphate
- Membranes with a plasma deposited titanium isopropoxide layer
- Effect of fuel content on formation of zinc aluminate nano and micro-particles synthesised by high rate sol–gel autoignition of glycine-nitrates
- Poly(butyl cyanoacrylate) nanoparticles stabilised with poloxamer 188: particle size control and cytotoxic effects in cervical carcinoma (HeLa) cells
- Solubility enhancement of phenanthrene using novel chelating surfactant
- Physicochemical and excess properties of binary mixtures of (1-alkyl-3-methylimidazoliumchloride/bromide + ethylene glycol) at T = (288.15 to 333.15) K
Articles in the same Issue
- Synthesis and properties of new N,N′-phenyltetrazole podand
- Molecular diagnosis of Pompe disease using MALDI TOF/TOF and 1H NMR
- Erythritol biosynthesis from glycerol by Yarrowia lipolytica yeast: effect of osmotic pressure
- Cloning and expression of two genes coding endo-β-1,4-glucanases from Trichoderma asperellum PQ34 in Pichia pastoris
- Adsorption desulphurisation of dimethyl sulphide using nickel-based Y zeolites pretreated by hydrogen reduction
- Equilibrium and kinetics of wetting hydrophobic microporous membrane in sodium dodecyl benzene sulphonate and diethanolamine aqueous solutions
- Separation of urea adducts in the analysis of complex mineral fertilisers
- Cheese whey tangential filtration using tubular mineral membranes
- Characterization of the quality of novel rye-buckwheat ginger cakes by chemical markers and antioxidant capacity
- A new high-temperature inorganic–organic proton conductor: lanthanum sulfophenyl phosphate
- Membranes with a plasma deposited titanium isopropoxide layer
- Effect of fuel content on formation of zinc aluminate nano and micro-particles synthesised by high rate sol–gel autoignition of glycine-nitrates
- Poly(butyl cyanoacrylate) nanoparticles stabilised with poloxamer 188: particle size control and cytotoxic effects in cervical carcinoma (HeLa) cells
- Solubility enhancement of phenanthrene using novel chelating surfactant
- Physicochemical and excess properties of binary mixtures of (1-alkyl-3-methylimidazoliumchloride/bromide + ethylene glycol) at T = (288.15 to 333.15) K