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Immobilization in polyvinyl alcohol hydrogel enhances yeast storage stability and reusability of recombinant laccase-producing S. cerevisiae
K. Herkommerová, J. Zemančíková, H. Sychrová, Z. Antošová,
Jazyk angličtina Země Nizozemsko
Typ dokumentu časopisecké články
NLK
ProQuest Central
od 1997-02-01 do Před 1 rokem
Medline Complete (EBSCOhost)
od 2000-01-01 do Před 1 rokem
Health & Medicine (ProQuest)
od 1997-02-01 do Před 1 rokem
- MeSH
- biotechnologie MeSH
- buněčné kultury MeSH
- imobilizované buňky * cytologie enzymologie metabolismus MeSH
- lakasa chemie metabolismus MeSH
- mikrobiální viabilita MeSH
- ochrana biologická metody MeSH
- opakované použití vybavení MeSH
- polyvinylalkohol chemie MeSH
- rekombinantní proteiny chemie metabolismus MeSH
- Saccharomyces cerevisiae * cytologie enzymologie metabolismus MeSH
- Publikační typ
- časopisecké články MeSH
OBJECTIVES: To improve the storage stability and reusability of various yeast strains and species by immobilization in polyvinyl alcohol (PVA) hydrogel particles. RESULTS: Debaryomyces hansenii, Pichia sorbitophila, Saccharomyces cerevisiae, Yarrowia lipolytica, and Zygosaccharomyces rouxii were immobilized in PVA particles using LentiKats technology and stored in sterile water at 4 °C. The immobilization improved the survival of all species; however, the highest storage stability was achieved for S. cerevisiae and Y. lipolytica which survived more than 1 year, in contrast to free cells that survived for only 3 months. Tests of the reusability of immobilized recombinant laccase-secreting S. cerevisiae revealed that the cells were suitable for repetitive use (55 cycles during 15 months) even after storage in water at 4 °C for 9 months. A suitable method for killing immobilized laccase-secreting cells without affecting the produced enzyme activity was also developed. CONCLUSIONS: The immobilization of yeasts in PVA hydrogel enables long-term, cheap storage with very good cell viability and productivity, thus becoming a promising approach for industrial applications.
Citace poskytuje Crossref.org
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- $a OBJECTIVES: To improve the storage stability and reusability of various yeast strains and species by immobilization in polyvinyl alcohol (PVA) hydrogel particles. RESULTS: Debaryomyces hansenii, Pichia sorbitophila, Saccharomyces cerevisiae, Yarrowia lipolytica, and Zygosaccharomyces rouxii were immobilized in PVA particles using LentiKats technology and stored in sterile water at 4 °C. The immobilization improved the survival of all species; however, the highest storage stability was achieved for S. cerevisiae and Y. lipolytica which survived more than 1 year, in contrast to free cells that survived for only 3 months. Tests of the reusability of immobilized recombinant laccase-secreting S. cerevisiae revealed that the cells were suitable for repetitive use (55 cycles during 15 months) even after storage in water at 4 °C for 9 months. A suitable method for killing immobilized laccase-secreting cells without affecting the produced enzyme activity was also developed. CONCLUSIONS: The immobilization of yeasts in PVA hydrogel enables long-term, cheap storage with very good cell viability and productivity, thus becoming a promising approach for industrial applications.
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