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A reduced specific ethanol-forming performance of yeast at high biomass concentrations as a result of a changed ethanol-tolerance behaviour of the cells under condition of limitation I. A theoretical treatment

✍ Scribed by K. Richter

Publisher: John Wiley and Sons
Year: 1989
Tongue: English
Weight: 372 KB
Volume: 9
Category: Article
ISSN: 0138-4988
DOI: 10.1002/abio.370090104

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✦ Synopsis

The loss of fermentative activity of yeast cells, observed in continuous fermentation experiments a t increasing biomass concentration is explained by the assumption that the ethanol-tolerance behaviour of the microorganisms changes if a growth-stabilizing factor limitation is present.

A mathematical specification of the relationships existing in thia context is given and an improved steady-state productivity model of ethanol production is derived.

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✍ K. Richter; U. Becker; D. Meyer 📂 Article 📅 1989 🏛 John Wiley and Sons 🌐 English ⚖ 387 KB 👁 2 views

In growth-factor limited fermentations carried out in continuous high-flow rate fermenters the relationship existing between the specific ethanol formation rate and the ethanol concentration was found to change its characteristics from a linear function into a nonlinear one a t high biomass concentr