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| Content Provider | Springer Nature Link |
|---|---|
| Author | Pyo, Sang Hyun Hayes, Douglas G. |
| Copyright Year | 2009 |
| Abstract | Fructose–oleic acid esters, biodegradable, biocompatible and biobased surfactants and value-added products were synthesized under solvent-free conditions at 65 °C in stirred-batch mode and using several different bioreactor systems. For a stirred-tank bioreactor (STBR) using fed-batch fructose addition and 5.0 wt.% immobilized Rhizomucor miehei lipase (Lipozyme$^{®}$ IM, Novozymes, Franklinton, NC), the conversion yield was over 80%, and the initial rate of the reaction was comparable to previously obtained results using tert-butanol during the initial phase. The bioreactor systems contained a packed “desorption” column (DC) containing fructose crystals and silica gel for delivery of saccharide, and either a STBR or packed-bed bioreactor (PBBR). The liquid stream, initially containing oleic acid and a mixture of fructose–oleic acid esters at a ratio of 75/25 w/w, was continuously recirculated throughout the system. The PBBR system yielded the highest conversion (84.4%) and rate of reaction subsequent to the addition of 10 wt.% molecular sieves during the latter stage of reaction; however, the reaction rate was several-fold lower than the batch mode reactions due to the lower fructose concentrations provided by the DC. |
| Starting Page | 521 |
| Ending Page | 529 |
| Page Count | 9 |
| File Format | |
| ISSN | 0003021X |
| Journal | Journal of the American Oil Chemists' Society |
| Volume Number | 86 |
| Issue Number | 6 |
| e-ISSN | 15589331 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2009-04-25 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Biocatalysis Bioreactor Biosurfactant Enzyme Lipase Saccharide–fatty acid esters Solventless bioreactor system Biotechnology Food Science Agriculture Biomaterials Industrial Chemistry/Chemical Engineering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Chemical Engineering |
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