ISSN:
1432-0614
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Summary Baker's yeast was aerobically grown in gaseous fluidized beds in the form of solid particles. Air was used as the fluidizing fluid and as a source of oxygen, while the concentrated nutrient solution was sprayed at the top of the bed. Five glucose concentrations 125, 160, 200, 250 und 350 gl−1 were used. A maximum in the growth rate and in the yield coefficient occurred at 250 and 200 g l−1, respectively. The calculated growth rates are one order of magnitude less than the growth rates in submerged cultures, but the maintenance energy coefficient is the same in both systems. Alcohol ppm level in the exhaust gases increased with increasing glucose concentration in the nutrient solution. Oscillations in the alcohol production indicated product inhibition of the cell growth under high glucose concentrations in the nutrient feed solution.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00505832
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