Effects of yeast invertase on ethanol production in molasses |
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| Institution: | 1. Department of Chemistry, Azadshahr Branch, Islamic Azad University, Azadshahr, Golestan, Iran;2. Payame Noor University, Faculty of sciences, P.O. box 19395-3697, Tehran, Iran;3. Department of Chemistry, Gorgan Branch, Islamic Azad University, Gorgan, Iran;4. Golestan Rheumatology Research Center, Golestan University of Medical Science, Gorgan, Iran |
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| Abstract: | Ethanol fermentation by an alcohol yeast, YOY655, was slower in molasses than in a nutrition rich medium with the same sugar content. Osmolality was much higher in the molasses, and the slower fermentation in the molasses was ascribed to depressed fermentation under the high osmotic pressure. Yeast invertase was an important factor in regulation the osmolality and the fermentation rate in the molasses. |
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