You need JavaScript to view this

Modelling of the process yields of a whey fermentation

Abstract

The biomass yields (y) and COD reduction efficiencies (eta) of a whey fermentation by Kluyveromyces fragilis were studied in a 100-l fermenter at various stirrer speeds and lactose concentrations, and compared to those obtained in 10-l and 15-l fermenters at constant values of the oxygen transfer coefficient (ksub(L)a) and air velocity. The empirical models previously constructed by using the 15-l fermenter data could be used to predict the yields on the other scales by calculating for each run the 15-l fermenter which would provide the same oxygen transfer coefficient measured by the sulphite method on each fermenter under study. To make this model independent of stirrer speeds used in each generic fermenter, the effect of aeration and mixing was incorporated into an overall parameter (ksub(L)a) and the values of y and eta were correlated only with temperature, lactose level and ksub(L)a since these variables were approximately orthogonal.
Publication Date:
Sep 01, 1981
Product Type:
Journal Article
Reference Number:
EDB-82-131540
Resource Relation:
Journal Name: Eur. J. Appl. Microbiol. Biotechnol.; (Germany, Federal Republic of); Journal Volume: 13:1
Subject:
59 BASIC BIOLOGICAL SCIENCES; WHEY; BENCH-SCALE EXPERIMENTS; FERMENTATION; YEASTS; PRODUCTIVITY; BIOMASS; CHEMICAL OXYGEN DEMAND; FLOW RATE; PILOT PLANTS; BIOCONVERSION; ENERGY SOURCES; FUNCTIONAL MODELS; FUNGI; INDUSTRIAL WASTES; MICROORGANISMS; PLANTS; RENEWABLE ENERGY SOURCES; WASTES; 550700* - Microbiology
OSTI ID:
5175409
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: EJABD
Submitting Site:
HEDB
Size:
Pages: 1-9
Announcement Date:

Citation Formats

Blakebrough, N, and Moresi, M. Modelling of the process yields of a whey fermentation. Germany: N. p., 1981. Web. doi:10.1007/BF00505333.
Blakebrough, N, & Moresi, M. Modelling of the process yields of a whey fermentation. Germany. doi:10.1007/BF00505333.
Blakebrough, N, and Moresi, M. 1981. "Modelling of the process yields of a whey fermentation." Germany. doi:10.1007/BF00505333. https://www.osti.gov/servlets/purl/10.1007/BF00505333.
@misc{etde_5175409,
title = {Modelling of the process yields of a whey fermentation}
author = {Blakebrough, N, and Moresi, M}
abstractNote = {The biomass yields (y) and COD reduction efficiencies (eta) of a whey fermentation by Kluyveromyces fragilis were studied in a 100-l fermenter at various stirrer speeds and lactose concentrations, and compared to those obtained in 10-l and 15-l fermenters at constant values of the oxygen transfer coefficient (ksub(L)a) and air velocity. The empirical models previously constructed by using the 15-l fermenter data could be used to predict the yields on the other scales by calculating for each run the 15-l fermenter which would provide the same oxygen transfer coefficient measured by the sulphite method on each fermenter under study. To make this model independent of stirrer speeds used in each generic fermenter, the effect of aeration and mixing was incorporated into an overall parameter (ksub(L)a) and the values of y and eta were correlated only with temperature, lactose level and ksub(L)a since these variables were approximately orthogonal.}
doi = {10.1007/BF00505333}
journal = {Eur. J. Appl. Microbiol. Biotechnol.; (Germany, Federal Republic of)}
volume = {13:1}
journal type = {AC}
place = {Germany}
year = {1981}
month = {Sep}
}