| Titre : |
The odor of leather |
| Type de document : |
texte imprimé |
| Auteurs : |
Michaela Schröpfer, Auteur ; M. Czerny, Auteur ; H. Schulz, Auteur ; P. Schieberle, Auteur |
| Année de publication : |
2013 |
| Article en page(s) : |
p. 94-107 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Analyse sensorielle
Chromatographie en phase gazeuse
Composés aromatiques
Cuir
Cuir -- Odeurs
Dilution
Extraction (chimie)
Olfactométrie
Spectrométrie de masse
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Leather has a typical odor that varies depending on the type of leather. Whereas many other materials should preferably be odorless, a typical leather odor is desired. It is an important quality feature. So far the compounds causing the leather odor could not be clearly defined. For this research work, different leathers from different application areas were chosen. Depending on the manufacturing technology the leathers showed different nuances of leather odor. Published herein are the results from analysis of leathers by Gaschromatography-Odorimetry (GC-O), Aroma-extract-dilution analysis (AEDA), Gas chromatography-Mass-Spectrometry (GC-MS) and Stable-Isotope-Dilution-Analysis (SIDA) for identifying and quantifying substances accountable for certain leather odors. Furthermore, it points out from which stages of leather manufacturing the leather odor originates and if it can be influenced. Alternative methods for identification and quantification of substances relevant to odor are discussed regarding their significance. |
| Note de contenu : |
EXPERIMENTAL :
- Leather selection
- Isolation of volatile substances : Solvent extraction - Headspace extraction - Aroma-extract-diluaion analysis (AEDA) - Aroma-dilution-analysis (ADA)
- Identification of key odorous substances : Capillary gas chromatography/odorimetry (GC-O) - Capillary gas chromatography/mass spectrometry (GC/MS) - Two-dimensional GC/MS (TDGC/MS) - Identification and structure clarification
- Quantification of key odorous substances (SIDA)
- Sensory examination : Triangle tests
- Aroma profile analysis
- Determination of the odor threshold in gelatin
- Simulation of the leather odor
- Sample preparation - Development of rapid tests : Headspace - External enrichment and thermal desorption of volatile compounds - Capillary gas chromatography/mass spectrometry (GC/MS) development of rapid tests
RESULTS :
- Sensory comparison of the leathers examined
- Identification of the odorous substances in leather and their contribution to the odor
- Simulation of the leather odors
- Influence of production processes on the leather odor
- Examination of the influence of leather additives on leather odorous substances
- Development of emission-analytical rapid methods for assessing the leather odor |
| En ligne : |
https://drive.google.com/file/d/1NkYrREPt54OGIZelY_YGABedgRUBooCt/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17732 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVIII, N° 3 (03/2013) . - p. 94-107
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