𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Production of ethanol by immobilized yeasts

✍ Scribed by P. G. Krouwel

Publisher
Springer Netherlands
Year
1979
Tongue
English
Weight
59 KB
Volume
45
Category
Article
ISSN
0003-6072

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✦ Synopsis

The organism used was Aspergillusfoetoidus (IMI 15954) which produces citric acid when grown on a defined synthetic medium. A preliminary study has been carried out to establish the performance characteristics of the modified CMMFF at various inlet substrate concentrations, dilution rates and biomass hold-ups (numbers of particles).

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Production of ethanol by yeasts immobili
Production of ethanol by yeasts immobilized in pectin
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were immobilized by occlusion in pectin gel, no significant changes in their biological activity being observed. The ethanol production rate was found to be negatively affected by the diameter of the beads when the cell concentration in them was high. The fermentative activity was only slightly modi

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## Abstract __Saccharomyces cerevisiae__ cells were immobilized in calcium alginate beads for use in the continuous production of ethanol. Yeasts were grown in medium supplemented with ethanol to selectively screen for a culture which showed the greatest tolerance to ethanol inhibition. Yeast beads

Horizontal reactor for the continuous pr
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✍ Antonio Navarro; Hugo Marangoni; Ignacio MagaΓ±a Plaza; Danley Callieri πŸ“‚ Article πŸ“… 1984 πŸ› Springer Netherlands 🌐 English βš– 431 KB

Yeast cells (Saccharomyces cerevX~iae) were immobilized in pectin gel, incubated 12 h at 30Β°C and then used for the continuous production of ethanol employing a wedge-shaped horizontal reactor and sugar cane molasses as the carbon source. Under steady state conditions the mean residence time was 1.6