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Immobilization of Saccharomyces Cerevisae cells on water hyacinth stempieces and application to repeated batch fermentation for ethanol production |
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| รหัสดีโอไอ | |
| Creator | 1. Le Nhu Ngoc Ta 2. Thi Hong Chau Nguyen 3. Van Viet Man Le |
| Title | Immobilization of Saccharomyces Cerevisae cells on water hyacinth stempieces and application to repeated batch fermentation for ethanol production |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2559 |
| Journal Title | Songklanakarin Journal of Science and Technology (SJST) |
| Journal Vol. | 38 |
| Journal No. | 3 |
| Page no. | 333-341 |
| Keyword | ethanol,fermentation,immobilization,Saccharomyces cerevisae,water hyacinth |
| ISSN | 0125-3409 |
| Abstract | Water hyacinth (Eichhorniacrassipe) stem pieces were used as supports for Saccharomyces cerevisiae immobilization.The response surface methodology was implemented to maximize the cell immobilization yield. This methodologyoptimized the amount of water hyancinth pieces added to yeast suspension and the initial cell concentration in yeast suspensionprior to the immobilization. The immobilized yeast on water hyacinth stem pieces was then applied to ethanol fermentationwith 12 repeated batches. The ethanol production rate of the immobilized yeast was significantly higher than that of thefree yeast. In addition, gradual increase in the metabolic activity of the immobilized cell system was also observed duringthe 12 fermentation batches. The ethanol production rate of the immobilized yeast in the twelfth batch culture was increasedby 29.8% compared to that in the first batch culture. |
