Maintenance energy: a general model for energy-limited and energy-sufficient growth
β Scribed by S. J. Pirt
- Book ID
- 104790538
- Publisher
- Springer
- Year
- 1982
- Tongue
- English
- Weight
- 259 KB
- Volume
- 133
- Category
- Article
- ISSN
- 0302-8933
No coin nor oath required. For personal study only.
β¦ Synopsis
The new model proposed to account for the energy requirement for growth includes both a constant maintenance energy term (m) independent of the specific growth rate and a term (m') which decreases linearly with increase in specific growth rate and becomes zero at the maximum specific growth rate. The available data for testing the model do not deviate significantly from the relations predicted. Consistent values of the maximum growth yield (YG) can be derived, irrespective of whether the cultures are energy limited or energy sufficient. Attention is drawn to the possibility that the constant maintenance energy term may be estimated from the maximum specific growth rate.
π SIMILAR VOLUMES
Molar growth yield studies on chemostat cultures of Thiobacillus neapolitanus grown in thiosulfate-minerals medium have confirmed earlier observations that the dry weight increased linearly with the dilution rate. The observed increase can be explained neither by a change in cell composition nor by
The growth yields (Y obs ) are greater under sub-growth yield, Θ obs is the observed specific growth rate, strate-limited conditions than those under substrate-sufand m s is the maintenance metabolism rate. ficient conditions in continuous cultures. This indicates Substrate-sufficient cultures are