2001
DOI: 10.1106/j5ru-uqnn-j7tk-9l3c
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Kinetics of Ethanol and Acetaldehyde Production in Fermenting Wheat Dough by Laser-Based Trace Gas Detection

Abstract: The fermentation process of wheat dough was studied by laser-based trace gas detection. A CO-laser-driven photoacoustic spectrometer was used to monitor simultaneously, in real time, the ethanol and acetaldehyde production rates of two commercial types of active dry yeast (Saccharomyces cerevisiae) in wheat dough substrates. Both types of yeast, O and B, produced ethanol for 5 hours. Acetaldehyde was yielded only during 100 minutes by the yeast O, whereas the yeast B generated this compound for 3.5 hours. The … Show more

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Cited by 6 publications
(1 citation statement)
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“…In situ quantification of sugars and ethanol is complicated by the dense semisolid dough matrix, although several workers have analyzed ethanol in the headspace above fermenting doughs (Hansen and Hansen 1994;Tomas and Harren 2001). The more common approach is to extract dough with a solvent then quantify sugars and ethanol in the extract.…”
mentioning
confidence: 99%
“…In situ quantification of sugars and ethanol is complicated by the dense semisolid dough matrix, although several workers have analyzed ethanol in the headspace above fermenting doughs (Hansen and Hansen 1994;Tomas and Harren 2001). The more common approach is to extract dough with a solvent then quantify sugars and ethanol in the extract.…”
mentioning
confidence: 99%