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Growth models of cultures with two liquid phases. VII. Substrate dissolved in dispersed phase; effect of dispersed phase volume and temperature
Author(s) -
Prokop A.,
Erickson L. E.
Publication year - 1972
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260140404
Subject(s) - hexadecane , growth rate , volume (thermodynamics) , bacterial growth , phase (matter) , drop (telecommunication) , linear growth , exponential growth , chemistry , substrate (aquarium) , chromatography , thermodynamics , materials science , chemical engineering , organic chemistry , biology , bacteria , telecommunications , mathematical analysis , ecology , physics , geometry , mathematics , genetics , computer science , engineering
The effects of dispersed phase volume and temperature on the batch growth of Candida lipolytica on gas oil are investigated. Growth parameters are presented for two sets of experiments. The shape of growth curves was basically similar to the system composed of n ‐hexadecane dissolved in dewaxed gas oil, in spite of the complex nature of the substance. All of the batch growth curves exhibited a linear growth region. The rate of linear growth and its length varied with change in dispersed phase volume. The effect of temperature on growth rate was investigated for temperatures ranging from 23°C to 34°C. The results show a smaller activation energy during linear growth than during the early stages of batch growth. These results are analyzed from the viewpoint of growth models presented previously. The results indicate that growth at drop surfaces is important and that segregation effects may be important.