Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.14279/3311
Title: | Effect of Pressure and Temperature on Alcoholic Fermentation by Saccharomyces Cerevisiae Immobilized on Gamma-alumina Pellets | Authors: | Galanakis, Charis M. Kordulis, Christos Kanellaki, Maria Koutinas, Athanasios A. Bekatorou, Argyro Lycourghiotis, Alexis S. |
Major Field of Science: | Agricultural Sciences | Field Category: | Other Agricultural Sciences | Keywords: | ethanol-production;calcium-alginate;wine-making;cells;yeast;biocatalyst;bioreactor;products;support;batch | Issue Date: | Jun-2012 | Source: | Bioresource Technology, vol, 114, pp. 492-498 | Volume: | 114 | Start page: | 492 | End page: | 498 | Journal: | Bioresource Technology | Abstract: | Saccharomyces cerevisiae was immobilized on gamma-alumina pellets and used for repeated batch fermentations in glucose medium (16.5 g/100 mL) at various temperatures and pressures. An increase in pressure from 3 to 7 atm and a decrease in temperature from 30 to 20 degrees C reduced the ethanol productivity by about 50% and 70%, respectively. Increasing concentrations of volatile by-products were observed at lower fermentation temperatures, while the pressure influence on the concentrations of these by-products was proved to be more complex. Mathematical expressions were established to allow the calculation of the fermentation rate at various pressures and sugar concentrations when the corresponding rate at atmospheric pressure is known. The study showed that the height of bioreactors has to be limited to 19.5 m due to hydrostatic pressure shock at higher fill levels. (C) 2012 Elsevier Ltd. All rights reserved. | URI: | https://hdl.handle.net/20.500.14279/3311 | ISSN: | 09608524 | DOI: | 10.1016/j.biortech.2012.03.010 | Rights: | Copyright © 2012 Elsevier | Type: | Article | Affiliation : | Cyprus University of Technology University of Patras Institute of Chemical Engineering and High Temperature Chemical Processes (FORTH/ICE-HT) |
Appears in Collections: | Άρθρα/Articles |
CORE Recommender
SCOPUSTM
Citations
43
checked on Nov 9, 2023
WEB OF SCIENCETM
Citations
50
29
Last Week
0
0
Last month
1
1
checked on Oct 29, 2023
Page view(s)
457
Last Week
2
2
Last month
5
5
checked on Dec 25, 2024
Google ScholarTM
Check
Altmetric
Items in KTISIS are protected by copyright, with all rights reserved, unless otherwise indicated.