Precision abrasion mass spectrometry: Instrumental method for determination of the quantitative distribution of volatile compounds trapped in polymeric materials

1981 ◽  
Vol 52 (10) ◽  
pp. 1521-1527 ◽  
Author(s):  
M. A. Grayson ◽  
E. A. Theby ◽  
K. O. Lippold
2015 ◽  
Vol 11 (1) ◽  
pp. 85-95 ◽  
Author(s):  
Mengmeng Zhu ◽  
Xu Shen ◽  
Jianglin Chen ◽  
Tingting Yang ◽  
Ruyan Hou

Abstract Chinese aromatic sunflower seeds (ASS) are a traditional snack food of China. During the production process, raw sunflower seeds were boiled by adding several traditional Chinese spices and then roasted to dryness, which lead to the formation of typical aroma, taste and healthful properties of ASS. In this study, volatile compounds from ASS were isolated by static headspace (HS) as well as simultaneous distillation and extraction (SDE) and determined with gas chromatography-mass spectrometry. The results show that the boiling process is necessary to obtain the typical aroma of ASS. A total of 82 compounds were identified, with phenols being the most abundant followed by spice components such as E-anethole and so on. Additionally, an SDE-GC/FID method was established to analyze the quantities of five main volatile compounds with eugenol being the most (16.06–29.30 µg/g). The levels of these five compounds could be used to adjust parameters during production and processing.


OENO One ◽  
1998 ◽  
Vol 32 (4) ◽  
pp. 211
Author(s):  
Isabelle Cutzach ◽  
Pascal Chatonnet ◽  
R. Henry ◽  
Monique Pons ◽  
Denis Dubourdieu

<p style="text-align: justify;">This study is dedicated to quantification, by gas chromatography combined with mass spectrometry, of some volatile compounds founded during ageing of sweet natural wines. Besides determination of the thresholds olfactory perception enable us knowing better the more active compound in sweet natural wines aroma.</p><p style="text-align: justify;">The results enable to know better volatile compounds which are able to produce ageing aromas characteristic of sweet natural wines. These products are always rich in sugar and grown up in a more or less oxidising environment. Logically, many of the compounds identified in this work (derived furanic compounds and many others) are Iinked with chemical like Maillard reactions between sugars and amino-acids. Others compounds as a sotolon need oxidising phenomena to increase in the environment.</p><p style="text-align: justify;">Comparatively, oldest Port wines have been analysed. The compounds measured in these Port wines also exist in French sweet natural wines of type Banyuls and Rivesaltes, keeped under oxidising environment. But the dillerences of concentrations in some compounds discriminate them from the Port wines.</p>


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