Calorimetry and thermodynamic aspects of heterotrophic, mixotrophic, and phototrophic growth

U. von Stockar, I. Marison, M.G.J. Janssen, R. Patino

Research output: Contribution to journalArticleAcademicpeer-review

8 Citations (Scopus)

Abstract

A simple stoichiometric model is proposed linking the biomass yield to the enthalpy and Gibbs energy changes in chemo-heterotrophic, mixotrophic, and photo-autotrophic microbial growth. A comparison with calorimetric experiments on the algae Chlorella vulgaris and Chlorella sorokiniana confirmed the trends but revealed large calorimetric measurement inaccuracies. The calorimetric data on purely photo-autotrophic growth was, however, in fair agreement with calculations. The thermodynamic characteristics of photosynthetic growth, including an estimation of the Gibbs energy dissipation, are compared with similar data for chemotrophic microbes.
Original languageEnglish
Pages (from-to)45-52
JournalJournal of Thermal Analysis and Calorimetry
Volume104
Issue number1
DOIs
Publication statusPublished - 2011

Fingerprint

Calorimetry
Chlorella
heat measurement
Thermodynamics
Gibbs free energy
thermodynamics
algae
microorganisms
Algae
biomass
Enthalpy
Energy dissipation
Biomass
energy dissipation
enthalpy
trends
Experiments
energy

Keywords

  • microbial-growth
  • chemotropic growth
  • biomass yields
  • microorganisms
  • biotechnology
  • cultures
  • search
  • heat

Cite this

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Calorimetry and thermodynamic aspects of heterotrophic, mixotrophic, and phototrophic growth. / von Stockar, U.; Marison, I.; Janssen, M.G.J.; Patino, R.

In: Journal of Thermal Analysis and Calorimetry, Vol. 104, No. 1, 2011, p. 45-52.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Calorimetry and thermodynamic aspects of heterotrophic, mixotrophic, and phototrophic growth

AU - von Stockar, U.

AU - Marison, I.

AU - Janssen, M.G.J.

AU - Patino, R.

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PY - 2011

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AB - A simple stoichiometric model is proposed linking the biomass yield to the enthalpy and Gibbs energy changes in chemo-heterotrophic, mixotrophic, and photo-autotrophic microbial growth. A comparison with calorimetric experiments on the algae Chlorella vulgaris and Chlorella sorokiniana confirmed the trends but revealed large calorimetric measurement inaccuracies. The calorimetric data on purely photo-autotrophic growth was, however, in fair agreement with calculations. The thermodynamic characteristics of photosynthetic growth, including an estimation of the Gibbs energy dissipation, are compared with similar data for chemotrophic microbes.

KW - microbial-growth

KW - chemotropic growth

KW - biomass yields

KW - microorganisms

KW - biotechnology

KW - cultures

KW - search

KW - heat

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DO - 10.1007/s10973-010-1278-7

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JO - Journal of Thermal Analysis and Calorimetry

JF - Journal of Thermal Analysis and Calorimetry

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