2020
DOI: 10.3390/s20113135
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Influence of Changes in the Level of Volatile Compounds Emitted during Rapeseed Quality Degradation on the Reaction of MOS Type Sensor-Array

Abstract: This study presents the applicability of a three-parameters method for digital description of spoiled rapeseed odor based on the use of an electronic nose. The method consists of the use of three parameters to describe the sensor response, i.e., the maximum resistance value, the response time and the cleaning time of the active surface of the sensor. Reference chemical methods, i.e., determination of the ergosterol content and analysis of volatile compounds by gas chromatography-mass spectrometry, were used to… Show more

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Cited by 21 publications
(17 citation statements)
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“…4-fold shorter than the latter in the case of the unheated oil. This can be interpreted by the slow adsorption of the molecules on the active surface of the metal oxide semiconductor chemoresistors and their 4-fold faster desorption rate [ 22 , 23 ]. The reaction time in the case of the heated oils was longer than that of the unheated sample.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…4-fold shorter than the latter in the case of the unheated oil. This can be interpreted by the slow adsorption of the molecules on the active surface of the metal oxide semiconductor chemoresistors and their 4-fold faster desorption rate [ 22 , 23 ]. The reaction time in the case of the heated oils was longer than that of the unheated sample.…”
Section: Resultsmentioning
confidence: 99%
“…This non-invasive and inexpensive device is used for rapid identification of the volatile compound profile [ 22 ]. The results of the measurements carried out with the electronic nose were verified and correlated with the more accurate but more labour-intensive and costly GC-MS analysis of volatile substances and chemical methods for determination of quality [ 23 ]. This was aimed at answering the question whether the history of heat treatment of oil can be revealed by the analysis of its volatile substances.…”
Section: Introductionmentioning
confidence: 92%
“…For example, acetone and ethanol are very often found in the breath of diabetics, pentane is abundant in the breath of schizophrenia patients, and high aldehyde concentrations are present in the breath of patients with lung cancer [ 6 ]. Production of specific sets of VOCs is also associated with food spoilage, and thus VOC monitoring can be a means for food quality control [ 7 , 8 , 9 , 10 , 11 ]. Hence, developing tools for detecting VOCs, in real-time, in situ, and in a fast and non-invasive manner is of enormous relevance in areas such as environmental monitoring, disease control, security and defense, or in quality control.…”
Section: Introductionmentioning
confidence: 99%
“…Rapeseed (Brassica napus) and sunflower (Helianthus annuus) belong to the most important oil crops cultivated worldwide, and cold-pressed rapeseed and sunflower oils are starting to be more popular among consumers, especially in Poland, Germany, Great Britain and France [1][2][3][4][5]. Rapeseed crop production represents 10% of worldwide oilseed production [6].…”
Section: Introductionmentioning
confidence: 99%