PMAA-stabilized ferrofluid/chitosan/yeast composite for bioapplications

0474836 - BC 2018 RIV NL eng J - Journal Article
Baldíková, E. - Procházková, J. - Štěpánek, M. - Hajduová, J. - Pospíšková, K. - Šafaříková, Miroslava - Šafařík, Ivo
PMAA-stabilized ferrofluid/chitosan/yeast composite for bioapplications.
Journal of Magnetism and Magnetic Materials. Roč. 427, April (2017), s. 29-33. ISSN 0304-8853. E-ISSN 1873-4766
Institutional support: RVO:60077344
Keywords : magnetic biocatalyst * cell immobilization * invertase * magnetic fluid * yeast
OECD category: Bioproducts (products that are manufactured using biological material as feedstock) biomaterials, bioplastics, biofuels, bioderived bulk and fine chemicals, bio-derived novel materials
Impact factor: 3.046, year: 2017

A simple, one-pot process for the preparation of magnetically responsive yeast-based biocatalysts was developed. Saccharomyces cerevisiae, Candida utilis and Kluyveromyces lactis cells were successfully incorporated into chitosan gel magnetically modified with poly(methacrylic acid)-stabilized magnetic fluid (PMAA-FF) during its formation. Magnetic PMAA-FF/chitosan/yeast composites were efficiently employed for invert sugar production. The dependence of invertase activity on used yeast, amount of magnetic biocatalyst, agitation time and after reuse was studied in detail. The tested magnetic biocatalysts retained at least 69% of their initial activity after 8 reuse cycles.
Permanent Link: http://hdl.handle.net/11104/0277688