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Impact of temperature on growth and metabolic efficiency of Penicillium roqueforti - Correlations between produced heat, ergosterol content and biomass

Li, Yujing LU ; Wadsö, Lars LU and Larsson, Lennart LU (2009) In Journal of Applied Microbiology1997-01-01+01:00 106(Online 4 Feb 2009). p.1494-1501
Abstract
The influence of temperature on the growth of the mould Penicillium roqueforti growing on malt extract agar was studied by correlating the produced heat (measured by isothermal calorimetry), ergosterol content (quantified by GC-MS/MS) and biomass of the mould at 10, 15, 20, 25 and 30°C. The results were analysed with a simple metabolic model from which the metabolic efficiency was calculated. The results show that the impact of temperature on growth rate and metabolic efficiency are different: although the mould fungus had the highest growth rate (in terms of thermal power, which was continuously measured) at 25°C, the substrate carbon conversion efficiency (biomass production divided by substrate consumption, both counted as moles carbon)... (More)
The influence of temperature on the growth of the mould Penicillium roqueforti growing on malt extract agar was studied by correlating the produced heat (measured by isothermal calorimetry), ergosterol content (quantified by GC-MS/MS) and biomass of the mould at 10, 15, 20, 25 and 30°C. The results were analysed with a simple metabolic model from which the metabolic efficiency was calculated. The results show that the impact of temperature on growth rate and metabolic efficiency are different: although the mould fungus had the highest growth rate (in terms of thermal power, which was continuously measured) at 25°C, the substrate carbon conversion efficiency (biomass production divided by substrate consumption, both counted as moles carbon) was highest at 20°C. The temperature of the most rapid growth did therefore not equal the temperature of the most efficient growth. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Applied Microbiology1997-01-01+01:00
volume
106
issue
Online 4 Feb 2009
pages
1494 - 1501
publisher
Wiley-Blackwell
external identifiers
  • wos:000264958000009
  • scopus:64149120903
ISSN
1364-5072
DOI
10.1111/j.1365-2672.2008.04110.x
language
English
LU publication?
yes
id
513d80fa-7aaa-4b91-820a-b38ffdee62ae (old id 1266391)
date added to LUP
2008-11-11 16:45:32
date last changed
2017-12-10 03:41:50
@article{513d80fa-7aaa-4b91-820a-b38ffdee62ae,
  abstract     = {The influence of temperature on the growth of the mould Penicillium roqueforti growing on malt extract agar was studied by correlating the produced heat (measured by isothermal calorimetry), ergosterol content (quantified by GC-MS/MS) and biomass of the mould at 10, 15, 20, 25 and 30°C. The results were analysed with a simple metabolic model from which the metabolic efficiency was calculated. The results show that the impact of temperature on growth rate and metabolic efficiency are different: although the mould fungus had the highest growth rate (in terms of thermal power, which was continuously measured) at 25°C, the substrate carbon conversion efficiency (biomass production divided by substrate consumption, both counted as moles carbon) was highest at 20°C. The temperature of the most rapid growth did therefore not equal the temperature of the most efficient growth.},
  author       = {Li, Yujing and Wadsö, Lars and Larsson, Lennart},
  issn         = {1364-5072},
  language     = {eng},
  number       = {Online 4 Feb 2009},
  pages        = {1494--1501},
  publisher    = {Wiley-Blackwell},
  series       = {Journal of Applied Microbiology1997-01-01+01:00},
  title        = {Impact of temperature on growth and metabolic efficiency of Penicillium roqueforti - Correlations between produced heat, ergosterol content and biomass},
  url          = {http://dx.doi.org/10.1111/j.1365-2672.2008.04110.x},
  volume       = {106},
  year         = {2009},
}