The use of a new technique to immobilize yeast cells in alginate capsules

• Autorzy: Wójcik M. , Grubecki I. , Trawczyńska I.
• Języki publikacji: EN

Abstrakty

EN

A new technique for the encapsulation of yeast cells by elimination of any thickening agent has been evaluated. The proposed procedure is based on the application of a concentrated suspension of cells which already has the sufficient viscosity to obtain spherical capsules with a semipermeable membrane. Measurements have been conducted which show that, for suspensions with yeast cell concentrations higher than 20% dry weight, apparent viscosity depends not only on the yeast concentration, but also on shear rate. The influence of sodium alginate and calcium chloride concentrations on membrane thickness has also been studied.

Słowa kluczowe

EN

immobilization; encapsulation; viscosity; alginate capsule

• Wydawca: Faculty of Chemical Technology and Engineering, University of Technology and Life Sciences, Bydgoszcz
• Czasopismo: Ars Separatoria Acta
• Rocznik: 2012/2013
• Tom: No. 9/10
• Strony: 77--82
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Wójcik M.

• University of Technology and Life Sciences, Faculty of Chemical Technology and Engineering, Seminaryjna 3, 85-326 Bydgoszcz, Poland

autor

Grubecki I.

• University of Technology and Life Sciences, Faculty of Chemical Technology and Engineering, Seminaryjna 3, 85-326 Bydgoszcz, Poland

autor

Trawczyńska I.

• University of Technology and Life Sciences, Faculty of Chemical Technology and Engineering, Seminaryjna 3, 85-326 Bydgoszcz, Poland

Bibliografia

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• [6] Dembczynski R., Jankowski T., 2002. Growth characteristics and acidifying activity of Lactobacillus rhamnosus in alginate/starch liquid-core capsules, Enz. Microbial Technol. 31(1-2), 111-115.
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• [10] Dembczynski R., Jankowski T., 2000. Characteristics of small molecules diffusion in hydrogel-membrane liquid-core capsules, Biochem. Eng. J. 6(1), 41-44.
• [11] Park J.K., Jung J.Y., 2002. Production of benzaldehyde by encapsulated whole-cell benzoylformate decarboxylase, Enzyme Microb. Technol. 30(6), 726-733.
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