A novel electronic nose based on miniaturized SAW sensor arrays coupled with SPME enhanced headspace-analysis and its use for rapid determination of volatile organic compounds in food quality monitoring

2006 ◽  
Vol 114 (1) ◽  
pp. 482-488 ◽  
Author(s):  
Nicole Barié ◽  
Mark Bücking ◽  
Michael Rapp
Keyword(s):  
Organic Compounds ◽  
Electronic Nose ◽  
Food Quality ◽  
Rapid Determination ◽  
Sensor Arrays ◽  
Headspace Analysis ◽  
Quality Monitoring ◽  
Saw Sensor ◽  
Volatile Organic

scholarly journals Electronic nose with polymer-composite sensors for monitoring fungal deterioration of stored rapeseed

2017 ◽  
Vol 31 (3) ◽  
pp. 317-325 ◽  
Author(s):  
Marek Gancarz ◽  
Jolanta Wawrzyniak ◽  
Marzena Gawrysiak-Witulska ◽  
Dariusz Wiącek ◽  
Agnieszka Nawrocka ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Electronic Nose ◽  
Principal Component ◽  
Colony Forming Units ◽  
Volatile Organic ◽  
Association Time ◽  
Infected Material ◽  
Fungal Deterioration

AbstractInvestigations were performed to examine the possibility of using an electronic nose to monitor development of fungal microflora during the first eighteen days of rapeseed storage. The Cyranose 320 device manufactured by Sensigent was used to analyse volatile organic compounds. Each sample of infected material was divided into three parts and the degree of spoilage was measured in three ways: analysis of colony forming units, determination of ergosterol content, and measurement of volatile organic compounds with the e-nose. Principal component analysis was performed on the generated patterns of signals and six groups of different spoilage levels were isolated. An analysis of sensorgrams for a few sensors with a strong signal for each group of rapeseed spoilage was performed. The ratio of the association time to the steady state was calculated. This ratio was different for the low level and the highest level of ergosterol and colony forming units. The results have shown that the e-nose can be a useful tool for quick estimation of the degree of rapeseed spoilage.

TGS Sensors in Electronic Nose for Multimedia Applications: A Practical Approach

2007 ◽  
Vol 3 (2) ◽  
pp. 102-112
Author(s):  
Syed A Imam ◽  
M R Khan
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Electronic Nose ◽  
Calibration Graph ◽  
Consumer Electronics ◽  
Multimedia Systems ◽  
Detection Systems ◽  
Multimedia Environment ◽  
Volatile Organic

Multimedia systems are widely used in consumer electronics environments today, where humans can work and communicate through multi-sensory interfaces. Unfortunately smell detection and generation systems are not part of today's multimedia systems. In this paper, we propose an Electronic Nose based on TGS-822 sensors that can be used in a multimedia environment. TGS-822 sensor based electronic nose can detect a large number of Volatile Organic Compounds (VOCs) that have some smell and will have a significantly lower cost compared to the other detection systems. The results and the calibration graph obtained for three VOCs (i.e. ethanol, acetone and benzene) with varying concentration shows that TGS 822 sensor has the potential to become a reliable instrument and can be used in an electronic nose. Therefore, the accuracy and linearity of the obtained characteristics with higher sensitivity of the proposed electronic nose based on TGS-822 sensor for the detection and determination of volatile organic compounds defines its effectiveness in a multimedia environment.

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