Microcalorimetric investigations of the metabolism of yeasts. growth in batch and chemostat cultures on ethanol medium

Brettel, R.; Lamprecht, I.; Schaarschmidt, B.

doi:10.1007/bf00505869

Cited by 18 publications

(2 citation statements)

References 10 publications

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“…Temperature strongly affects a range of fundamental cellular processes (Goldberg, 2003;Haas, 2010), and thus keeping a microbial culture in a suitable range of temperatures is of high importance in terms of strain performance (Amillastre, Aceves-Lara, Uribelarrea, Alfenore, & Guillouet, 2012). Large-scale growth of most microorganisms is accompanied by the production of heat (Brettel, Lamprecht, & Schaarschmidt, 1981), which, when large culture volumes are set, often results in an undesirable increase in the temperature of the batch culture that has to be alleviated through refrigeration (von Stockar & van der Wielen, 1997;Türker, 2004).…”

Section: Introductionmentioning

confidence: 99%

Thermoelectric heat exchange and growth regulation in a continuous yeast culture

Latorre-Perez¹,

Vilanova²,

Alcaína

et al. 2018

MicrobiologyOpen

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We have designed a thermoelectric heat exchanger (TEHE) for microbial fermentations that is able to produce electric power from a microbial continuous culture using the intrinsic heat generated by microbial growth. While the TEHE was connected, the system proved able to stably self-maintain both the temperature and the optical density of the culture. This paves the way toward a more sustainable operation of microbial fermentations, in which energy could be saved by converting part of the metabolic heat into usable electric power.

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Section: Introductionmentioning

confidence: 99%

Thermoelectric heat exchange and growth regulation in a continuous yeast culture

Latorre-Perez¹,

Vilanova²,

Alcaína

et al. 2018

MicrobiologyOpen

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“…Temperature strongly affects a range of fundamental cellular processes [2, 3]; and thus keeping a microbial culture in a suitable range of temperatures is of high importance in terms of strain performance [4]. Large-scale growth of most microorganisms is accompanied by the production of heat [5], which, when large culture volumes are set, often results in an undesirable increase in the temperature of the batch culture that has to be alleviated through refrigeration [6, 7].…”

Section: Introductionmentioning

confidence: 99%

Thermoelectric Heat Exchange and Growth Regulation in a Continuous Yeast Culture

Latorre-Perez¹,

Vilanova²,

Alcaína

et al. 2018

Preprint

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Heat flow measurements in aerobic microbial growth processes with a nonisothermal calorimeter operating directly in the fermenter

Heinritz¹,

Stoll²,

Glombitza³

1983

Acta Biotechnologica

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A nonisothermal flow cdorimeter operating directly in the fermenter was used for heat flow meitsurements of aerobic microbial growth processes with high biomass productivities. The measuring nrrangement.makes i t possible to describe transitional stages of aerobic yeast cell growth by thc ratio of heat production to oxygen consumption (oxy-caloric coefficient). The oxy-caloric coefficient was not constant under the described conditions. The results refer to the existence of an additional encrgy-delivering mechanism in microbial systems with aerobic carbon source utilization. The mechanism c:tn involve polyphosphnte bond division coupled to biomass synthesis. ZusamnicnfassungEin im Fermentor arbeitendes anisothermes DurchfluDkalorimeter wurde zu WiirmefluBiuessungen an seroben mikrobiellen Wachstumsprozessen bei hohen Biomassebildungsraten angeaendet. Die MeBanordnung erlaubt die Beschreibung des ubergangsverhaltens aerober Wachstumsvorgiinge durch die Ermittlung des Verhiiltnisses von Warmeproduktion und Sauerstoffverbrauch (oxy-kalorischer Koeffizient). Dieser Koeffizient ist unter den beschriebenen Bedingungen keine Konstante. Die experimentellen Ergebnisse deuten auf die Existenz eines zusiitzlichen energieliefernden Mechanismus in mikrobiellen Systemen, in denen die Kohlenstoff-nnd Energiequelle oxydntiv abgebaut wird. Dieser Mechanismus kann eine enge Kopplung der Spaltung von Polyphosphatbindungen und der Biomassesynthese enthnlten.

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Microcalorimetric investigations of the metabolism of yeasts. growth in batch and chemostat cultures on ethanol medium

Cited by 18 publications

References 10 publications

Thermoelectric heat exchange and growth regulation in a continuous yeast culture

Thermoelectric heat exchange and growth regulation in a continuous yeast culture

Thermoelectric Heat Exchange and Growth Regulation in a Continuous Yeast Culture

Heat flow measurements in aerobic microbial growth processes with a nonisothermal calorimeter operating directly in the fermenter

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