Abstract
Glyceryl ferulate was synthesized by the condensation of ferulic acid with glycerol using Pectinase PL "Amano" from Aspergillus niger, which contained ferulic acid esterase, to improve the water-solubility of ferulic acid. The optimum reaction medium was glycerol/0.1 M acetate buffer, pH 4.0, (98:2 v/v). The enzyme immobilized onto Chitopearl BCW3003 exhibited the highest activity among the those immobilized onto various kinds of Chitopearl BCW resins. The optimum temperature for the immobilized enzyme was 50°C, and it could be reused at least five times without a significant loss in activity for the synthesis of glyceryl ferulate in batch reaction. Storage of the reaction mixture at 25°C improved the molar fraction of glyceryl ferulate relative to the dissolved ferulic residues.
Original language | English |
---|---|
Pages (from-to) | 2151-2156 |
Number of pages | 6 |
Journal | Biotechnology Letters |
Volume | 30 |
Issue number | 12 |
DOIs | |
Publication status | Published - Dec 1 2008 |
Externally published | Yes |
Keywords
- Ferulic acid
- Ferulic acid esterase
- Glyceryl ferulate
- Immobilized enzyme
- Repeated batch reaction
ASJC Scopus subject areas
- Biotechnology
- Bioengineering
- Applied Microbiology and Biotechnology