Improvement of catalytic properties of Candida rugosa lipase by sol-gel encapsulation in the presence of magnetic calix[4]arene nanoparticles

Org Biomol Chem. 2011 Jun 7;9(11):4021-4. doi: 10.1039/c1ob05115f. Epub 2011 Apr 20.

Abstract

Candida rugosa lipase (CRL) was encapsulated within a chemically inert sol-gel support prepared by polycondensation with tetraethoxysilane (TEOS) and octyltriethoxysilane (OTES) in the presence of N-methylglucamine based calix[4]arene magnetic nanoparticles. The results indicate that the magnetic calix[4]arene based encapsulated lipase particularly has shown high conversion and enantioselectivity. It has also been noticed that the magnetic calix[4]arene based encapsulated lipase has excellent enantioselectivity (E = 460) as compared to the free enzyme (E = 166) with an ee value of >98% for S-Naproxen.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biocatalysis*
  • Calixarenes / chemistry*
  • Candida / enzymology*
  • Ferric Compounds / chemistry
  • Gels / chemical synthesis
  • Gels / chemistry
  • Lipase / chemistry
  • Lipase / metabolism*
  • Magnetics*
  • Molecular Structure
  • Nanoparticles / chemistry*
  • Particle Size
  • Phenols / chemistry*
  • Stereoisomerism
  • Surface Properties

Substances

  • Ferric Compounds
  • Gels
  • Phenols
  • calix(4)arene
  • Calixarenes
  • ferric oxide
  • Lipase