Friedrich-Alexander-Universität Erlangen-Nürnberg, Professorship for Aroma Research, Emil Fischer Center, Department of Chemistry and Pharmacy, Henkestrasse 9, 91054, Erlangen, Germany.
Department Sensory Analytics, Fraunhofer Institute for Process Engineering and Packaging IVV, Giggenhauser Straße 35, 85354, Freising, Germany.
Sci Rep. 2017 May 11;7(1):1807. doi: 10.1038/s41598-017-01720-5.
A fancy dress accessory handbag for children was claimed by consumers to exhibit an offensive smell. Sensory characterization by an expert panel revealed, amongst others, rubber- and car tire - like notes. For elucidation of the molecular reasons of this sensory defect, the volatile fraction of the product was isolated by means of solvent extraction and high vacuum distillation. Identification of the main odorants was accomplished by means of one- and two-dimensional gas chromatography, with parallel mass spectrometric and olfactometric detection. In total more than 60 odorants were detected in the sample and more than 30 of these odour-active substances could be identified. Amongst them were a number of naphthalene derivatives as well as saturated and mono- or di-unsaturated carbonyl compounds. The naphthalene derivatives that were identified in the children's article appeared to be mainly responsible for the characteristic off-odour. Additionally, a GC-MS-screening for polycyclic aromatic hydrocarbons (PAHs) was performed, which revealed the presence of 15 PAHs in total. However, 14 of them were of no relevance for the smell of the product.
消费者声称一款儿童奇装异服手包散发出难闻的气味。专家小组的感官特征分析显示，其中有橡胶和汽车轮胎的味道。为了阐明这种感官缺陷的分子原因，通过溶剂萃取和高真空蒸馏的方法对手包的挥发性成分进行了分离。通过一维和二维气相色谱法，并结合平行的质谱和嗅闻检测，完成了主要气味物质的鉴定。在样品中总共检测到 60 多种气味物质，其中 30 多种具有气味活性。其中包括一些萘衍生物以及饱和和单不饱和或二不饱和羰基化合物。在儿童手包中鉴定出的萘衍生物似乎是造成这种异味的主要原因。此外，还进行了多环芳烃 (PAH) 的 GC-MS 筛选，结果显示总共存在 15 种 PAH。然而，其中 14 种对产品的气味没有影响。
