Key Odorants from Pig Production Based on Improved Measurements of Odor Threshold Values Combining Olfactometry and Proton-Transfer-Reaction Mass Spectrometry (PTR-MS)
Analytical measurements of odorants in combination with odor threshold values is an alternative to sensory measurements that can be used to evaluate abatement technologies for pig production facilities. The purpose of the present study was to estimate odor threshold values for key odorants found in...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-03-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/18/3/788 |
| _version_ | 1828115656404369408 |
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| author | Michael Jørgen Hansen Pernille Lund Kasper Anders Peter S. Adamsen Anders Feilberg |
| author_facet | Michael Jørgen Hansen Pernille Lund Kasper Anders Peter S. Adamsen Anders Feilberg |
| author_sort | Michael Jørgen Hansen |
| collection | DOAJ |
| description | Analytical measurements of odorants in combination with odor threshold values is an alternative to sensory measurements that can be used to evaluate abatement technologies for pig production facilities. The purpose of the present study was to estimate odor threshold values for key odorants found in pig house air. A new method was applied where an olfactometer was used to dilute the sample air and the concentrations of odorants presented to the panelists at the dilutions steps were measured by proton-transfer-reaction mass spectrometry (PTR-MS). The results demonstrate that the odor threshold values of acetic acid, butanoic acid, and 4-methylphenol are considerably lower than reported previously, whereas the values of hydrogen sulfide, methanethiol and dimethylsulfide were comparable. Consequently, acetic acid, butanoic acid, and 4-methyl-phenol will have a larger influence on odor from pig production facilities than previously assumed. The results highlight the necessity for directly measuring exposure concentrations when determining odor threshold values. |
| first_indexed | 2024-04-11T12:43:52Z |
| format | Article |
| id | doaj.art-0fec2a1e65f04a2ba0a54765e5b12795 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T12:43:52Z |
| publishDate | 2018-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-0fec2a1e65f04a2ba0a54765e5b127952022-12-22T04:23:25ZengMDPI AGSensors1424-82202018-03-0118378810.3390/s18030788s18030788Key Odorants from Pig Production Based on Improved Measurements of Odor Threshold Values Combining Olfactometry and Proton-Transfer-Reaction Mass Spectrometry (PTR-MS)Michael Jørgen Hansen0Pernille Lund Kasper1Anders Peter S. Adamsen2Anders Feilberg3Department of Engineering, Aarhus University, 8000 Aarhus, DenmarkDepartment of Engineering, Aarhus University, 8000 Aarhus, DenmarkSEGES, 8200 Aarhus N, DenmarkDepartment of Engineering, Aarhus University, 8000 Aarhus, DenmarkAnalytical measurements of odorants in combination with odor threshold values is an alternative to sensory measurements that can be used to evaluate abatement technologies for pig production facilities. The purpose of the present study was to estimate odor threshold values for key odorants found in pig house air. A new method was applied where an olfactometer was used to dilute the sample air and the concentrations of odorants presented to the panelists at the dilutions steps were measured by proton-transfer-reaction mass spectrometry (PTR-MS). The results demonstrate that the odor threshold values of acetic acid, butanoic acid, and 4-methylphenol are considerably lower than reported previously, whereas the values of hydrogen sulfide, methanethiol and dimethylsulfide were comparable. Consequently, acetic acid, butanoic acid, and 4-methyl-phenol will have a larger influence on odor from pig production facilities than previously assumed. The results highlight the necessity for directly measuring exposure concentrations when determining odor threshold values.http://www.mdpi.com/1424-8220/18/3/788odor threshold valuesodor activity valueodorantsodorpigs |
| spellingShingle | Michael Jørgen Hansen Pernille Lund Kasper Anders Peter S. Adamsen Anders Feilberg Key Odorants from Pig Production Based on Improved Measurements of Odor Threshold Values Combining Olfactometry and Proton-Transfer-Reaction Mass Spectrometry (PTR-MS) Sensors odor threshold values odor activity value odorants odor pigs |
| title | Key Odorants from Pig Production Based on Improved Measurements of Odor Threshold Values Combining Olfactometry and Proton-Transfer-Reaction Mass Spectrometry (PTR-MS) |
| title_full | Key Odorants from Pig Production Based on Improved Measurements of Odor Threshold Values Combining Olfactometry and Proton-Transfer-Reaction Mass Spectrometry (PTR-MS) |
| title_fullStr | Key Odorants from Pig Production Based on Improved Measurements of Odor Threshold Values Combining Olfactometry and Proton-Transfer-Reaction Mass Spectrometry (PTR-MS) |
| title_full_unstemmed | Key Odorants from Pig Production Based on Improved Measurements of Odor Threshold Values Combining Olfactometry and Proton-Transfer-Reaction Mass Spectrometry (PTR-MS) |
| title_short | Key Odorants from Pig Production Based on Improved Measurements of Odor Threshold Values Combining Olfactometry and Proton-Transfer-Reaction Mass Spectrometry (PTR-MS) |
| title_sort | key odorants from pig production based on improved measurements of odor threshold values combining olfactometry and proton transfer reaction mass spectrometry ptr ms |
| topic | odor threshold values odor activity value odorants odor pigs |
| url | http://www.mdpi.com/1424-8220/18/3/788 |
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