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Application of Different Drying Methods on β-Glucan Isolated from Spent Brewer’s Yeast Using Alkaline Procedure

Vesna Zechner-Krpan ; University of Zagreb, Faculty of Food Technology and Biotechnology, Department of Biochemical Engineering, Laboratory of Biochemical Engineering, Industrial Microbiology and Malt and Beer Technology, Pierottijeva 6, Zagreb, Croatia
Vlatka Petravić-Tominac orcid id orcid.org/0000-0002-0680-5702 ; University of Zagreb, Faculty of Food Technology and Biotechnology, Department of Biochemical Engineering, Laboratory of Biochemical Engineering, Industrial Microbiology and Malt and Beer Technology, Pierottijeva 6, Zagreb, Croatia
Petra Galović ; University of Zagreb, Faculty of Food Technology and Biotechnology, Department of Biochemical Engineering, Laboratory of Biochemical Engineering, Industrial Microbiology and Malt and Beer Technology, Pierottijeva 6, Zagreb, Croatia
Vanja Galović ; Chromos Agro d.d., Quality control laboratory, Žitnjak b.b., Zagreb, Croatia
Jelena Filipović-Grčić ; University of Zagreb, Faculty of Pharmacy and Biochemistry, Department of Pharmaceutics, A. Kovačića 1, 10000, Zagreb, Croatia
Siniša Srečec orcid id orcid.org/0000-0002-9009-4375 ; Križevci College of Agriculture, M. Demerca 1, Križevci, Croatia


Puni tekst: engleski pdf 363 Kb

str. 45-50

preuzimanja: 782

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Sažetak

Water-insoluble (particulate) β-glucan was isolated from the cell walls of spent brewer’s yeast using a single-step alkaline treatment. To stabilize β-glucan water suspensions, sonication was successfully applied. Three different drying methods were used: air-drying, lyophilization and spray-drying. Air-drying and lyophilization caused β-glucan particles agglomeration and changes of their microstructure. Sonication combined with spray-drying resulted in minimal β-glucan structural changes and negligible formation of agglomerates. Reaggregation of spray-dried β-glucan particles was minimal even after resuspending in water.

Ključne riječi

β-glucan, drying, sonication, spent brewer’s yeast

Hrčak ID:

53008

URI

https://hrcak.srce.hr/53008

Posjeta: 1.647 *