Difference between revisions of "Oxycaloric equivalent"
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|abbr=Delta<sub>k</sub>''H''<sub>O2</sub> | |abbr=Delta<sub>k</sub>''H''<sub>O2</sub> | ||
|description=The '''oxycaloric equivalent''' is the theoretically derived enthalpy change of the oxidative catabolic reactions per amount of oxygen respired, Delta<sub>k</sub>''H''<sub>O2</sub>, ranging from -430 to -480 kJ/mol O<sub>2</sub>. | |description=The '''oxycaloric equivalent''' is the theoretically derived enthalpy change of the oxidative catabolic reactions per amount of oxygen respired, Delta<sub>k</sub>''H''<sub>O2</sub>, ranging from -430 to -480 kJ/mol O<sub>2</sub>. The oxycaloric equivalent is used in [[indirect calorimetry]] to calculate the theoretically expected metabolic heat flux from the respirometrically measured metabolic oxygen flux. [[Calorespirometric ratio|calorimetric/respirometric ratios]] (CR ratios; heat/oxygen flux ratios) are experimentally determined by [[calorespirometry]]. A CR ratio more exothermic than the oxycaloric equivalent of -480 kJ/mol indicates the simultaneous involvement of aerobic and anaerobic mechanisms of energy metabolism. | ||
|info=[[Gnaiger_1983_JEZ]], [[Gnaiger_1990_BBA]] | |info=[[Gnaiger_1983_JEZ]], [[Gnaiger_1990_BBA]] | ||
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Revision as of 12:40, 6 November 2011
- high-resolution terminology - matching measurements at high-resolution
Oxycaloric equivalent
Description
The oxycaloric equivalent is the theoretically derived enthalpy change of the oxidative catabolic reactions per amount of oxygen respired, DeltakHO2, ranging from -430 to -480 kJ/mol O2. The oxycaloric equivalent is used in indirect calorimetry to calculate the theoretically expected metabolic heat flux from the respirometrically measured metabolic oxygen flux. calorimetric/respirometric ratios (CR ratios; heat/oxygen flux ratios) are experimentally determined by calorespirometry. A CR ratio more exothermic than the oxycaloric equivalent of -480 kJ/mol indicates the simultaneous involvement of aerobic and anaerobic mechanisms of energy metabolism.
Abbreviation: DeltakHO2
Reference: Gnaiger_1983_JEZ, Gnaiger_1990_BBA
