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Production of Dextran by Leuconostoc Mesenteroides TISTR 053 in Fed Batch Fermentation |
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| รหัสดีโอไอ | |
| Creator | 1. Piyarat Nuwan 2. Phakphimol Piwpan 3. Adisak Jaturapiree 4. Phimchanok Jaturapiree |
| Title | Production of Dextran by Leuconostoc Mesenteroides TISTR 053 in Fed Batch Fermentation |
| Publisher | Research and Technology Transfer Affairs Division |
| Publication Year | 2559 |
| Journal Title | KKU Research Journal |
| Journal Vol. | 21 |
| Journal No. | 39 (Supplement) |
| Page no. | 366-375 |
| Keyword | dextran,fed batch fermentation,Leuconostoc,production |
| ISSN | 0859-3957 |
| Abstract | Dextran is a natural homopolysaccharide composed of ?(1,6)-linkages in their major chain and is synthesized by dextransucrase of the microbial cell in the presence of sucrose as a substrate. The production of dextran by sucrose fermentation using Leuconostoc mesenteroides TISTR 053 was carried out in a Biostat B plus fermenter with total working volume of 3 liter. The effects of sucrose concentrations and modes of operation (batch and fed batch) were studied. The maximum dextran production obtained after 24 hours of incubation at 37 oC with 20% sucrose in batch fermentation. The fed batch fermentation promoted the dextran productivity. The structure of dextran was determined and confirmed by FTIR and NMR. |
