ethyl-ferulate and glyceryl-ferulate

ethyl-ferulate has been researched along with glyceryl-ferulate* in 2 studies

Other Studies

2 other study(ies) available for ethyl-ferulate and glyceryl-ferulate

Article	Year
Enhanced enzymatic preparation of lipophilic feruloylated lipids using distearin as feruloyl acceptors: optimization by response surface methodology. Journal of oleo science, 2014, Volume: 63, Issue:10 Feruloylated lipids are esters of ferulic acid, which have antioxidation and UV-absorbing activities. In this study, lipophilic feruloylated lipids were prepared by the enzymatic transesterification of ethyl ferulate (EF) with distearin. Effects of different diacylglycerols as feruloyl acceptors were compared. Effects of transesterification variables were studied and optimized using response surface methodology. Under the optimized conditions (reaction temperature 78°C, reaction time 24 h, and enzyme load 14%), EF conversion was 97.6±2.2%, and the lipophilic feruloylated lipids prepared by the transesterification were consisted of 43.2±0.9% feruloylated monoacylglycerols (FMAG) and 33.3±1.3% feruloylated diacylglycerols (FDAG), respectively. Analysis of variance (ANOVA) showed that the regression equation was adequate for predicting the transesterification. The activation energies for the transesterification of EF with distearin to form lipophilic FMAG + FDAG and the side reaction hydrolysis of EF to form glyceryl ferulate + glyceryl diferulate were 57.75 and 40.31 kJ/mol, respectively. Topics: Analysis of Variance; Antioxidants; Biotechnology; Caffeic Acids; Diglycerides; Enzymes, Immobilized; Esterification; Fungal Proteins; Hydrolysis; Hydrophobic and Hydrophilic Interactions; Lipase; Monoglycerides; Sunscreening Agents; Technology, Pharmaceutical; Temperature	2014
Enhanced transesterification of ethyl ferulate with glycerol for preparing glyceryl diferulate using a lipase in ionic liquids as reaction medium. Biotechnology letters, 2013, Volume: 35, Issue:9 Glyceryl diferulate (DFG) is a water-soluble ester of ferulic acid. A novel ionic liquid (IL) system for enzymatic transesterification of ethyl ferulate (EF) with glycerol to produce DFG was developed. Of three ILs with different anions (BF4 (-), PF6 (-) and TF2N(-)) and cations (BDMIM, OMIM, HMIM, BMIM, and EMIM), EMIMTF2N proved the best using a commercial lipase. It had a significant protective effect against thermal inactivation of the enzyme. High EF conversion (~100 %) and DFG yield (45 %) were achieved using 45 mg enzyme/ml; temperature, 70 °C; reaction time, 12 h. Topics: Caffeic Acids; Enzyme Stability; Esterification; Glycerol; Ionic Liquids; Lipase; Monoglycerides; Temperature	2013

Article

Year

Enhanced enzymatic preparation of lipophilic feruloylated lipids using distearin as feruloyl acceptors: optimization by response surface methodology.

Journal of oleo science, 2014, Volume: 63, Issue:10

Feruloylated lipids are esters of ferulic acid, which have antioxidation and UV-absorbing activities. In this study, lipophilic feruloylated lipids were prepared by the enzymatic transesterification of ethyl ferulate (EF) with distearin. Effects of different diacylglycerols as feruloyl acceptors were compared. Effects of transesterification variables were studied and optimized using response surface methodology. Under the optimized conditions (reaction temperature 78°C, reaction time 24 h, and enzyme load 14%), EF conversion was 97.6±2.2%, and the lipophilic feruloylated lipids prepared by the transesterification were consisted of 43.2±0.9% feruloylated monoacylglycerols (FMAG) and 33.3±1.3% feruloylated diacylglycerols (FDAG), respectively. Analysis of variance (ANOVA) showed that the regression equation was adequate for predicting the transesterification. The activation energies for the transesterification of EF with distearin to form lipophilic FMAG + FDAG and the side reaction hydrolysis of EF to form glyceryl ferulate + glyceryl diferulate were 57.75 and 40.31 kJ/mol, respectively.

Topics: Analysis of Variance; Antioxidants; Biotechnology; Caffeic Acids; Diglycerides; Enzymes, Immobilized; Esterification; Fungal Proteins; Hydrolysis; Hydrophobic and Hydrophilic Interactions; Lipase; Monoglycerides; Sunscreening Agents; Technology, Pharmaceutical; Temperature

2014

Enhanced transesterification of ethyl ferulate with glycerol for preparing glyceryl diferulate using a lipase in ionic liquids as reaction medium.

Biotechnology letters, 2013, Volume: 35, Issue:9

Glyceryl diferulate (DFG) is a water-soluble ester of ferulic acid. A novel ionic liquid (IL) system for enzymatic transesterification of ethyl ferulate (EF) with glycerol to produce DFG was developed. Of three ILs with different anions (BF4 (-), PF6 (-) and TF2N(-)) and cations (BDMIM, OMIM, HMIM, BMIM, and EMIM), EMIMTF2N proved the best using a commercial lipase. It had a significant protective effect against thermal inactivation of the enzyme. High EF conversion (~100 %) and DFG yield (45 %) were achieved using 45 mg enzyme/ml; temperature, 70 °C; reaction time, 12 h.

Topics: Caffeic Acids; Enzyme Stability; Esterification; Glycerol; Ionic Liquids; Lipase; Monoglycerides; Temperature

2013