Monitoring the aroma production during wine–must fermentation with an electronic nose
- 15 January 2002
- journal article
- research article
- Published by Wiley in Biotechnology & Bioengineering
- Vol. 77 (6), 632-640
- https://doi.org/10.1002/bit.10141
Abstract
This work discusses the feasibility of using the electronic nose for the on‐line and real‐time monitoring of the production of a complex aroma profile during a bioconversion process. As a case study, the formation of the muscatel aroma during the wine–must fermentation was selected. During wine–must fermentation, aroma compounds responsible for the organoleptic character are produced in the ppm range, while simultaneously one of the main metabolic products, ethanol, is produced in much higher quantities (up to 10% wt). Because the sensors of the electronic nose array are cross‐selective to different volatile compounds, it was investigated in detail how far the electronic nose was able to evaluate the aroma profile along the fermentation. This article discusses and evaluates subsequently the integration of a membrane separation process—organophilic pervaporation—for selectively enriching aroma compounds relative to ethanol, to improve sample discrimination. © 2002 John Wiley & Sons, Inc. Biotechnol Bioeng 77: 632–640, 2002; DOI 10.1002/bit.10141Keywords
Funding Information
- Fundação para a Ciência e Tecnologia, Portugal (PRAXISXXI/BD/18289/98, PRAXISXXI/BD/9100/96 (to C.P. and T.S.))
This publication has 21 references indexed in Scilit:
- New sensor arrays and sampling systems for a modular electronic noseSensors and Actuators B: Chemical, 2000
- An electronic nose system to diagnose illnessSensors and Actuators B: Chemical, 2000
- Using the classification model of an electronic nose to assign unknown malodours to environmental sources and to monitor them continuouslySensors and Actuators B: Chemical, 2000
- An alternative way to improve the sensitivity of electronic olfactometersSensors and Actuators B: Chemical, 1999
- The Application of Electronic Nose Technology to Environmental Monitoring of Water and Wastewater Treatment ActivitiesWater Environment Research, 1999
- Electronic nose and sensorial analysis: comparison of performances in selected casesSensors and Actuators B: Chemical, 1998
- On-line monitoring of a cultivation using an electronic noseAnalytica Chimica Acta, 1998
- Extraction of benzaldehyde from fermentation broth by pervaporationProcess Biochemistry, 1996
- Pervaporation of dilute organic-waters mixtures. A literature review on modelling studies and applications to aroma compound recoveryJournal of Membrane Science, 1993
- Analysis of discrimination mechanisms in the mammalian olfactory system using a model noseNature, 1982