Formaldehyde dimethylhydrazone (FADMH) is one of the important transformation products of residual rocket fuel 1,1-dimethylhydrazine (1,1-DMH). Thus, recent studies show that FADMH toxicity is comparable to that of undecomposed 1,1-DMH. In this study, a new method for quantification of FADMH in water based on solid phase microextraction (SPME) in combination with gas chromatography (GC) with ma...

Hop-derived volatile organic compounds (VOCs) and their transformation products significantly impact beer flavour aroma. Geraniol, a key monoterpene alcohol in hops, has been reported to undergo yeast-modulated biotransformation into various terpenoids during fermentation, which impacts the citrus floral aromas of finished beer. This study monitored evolution geraniol its throughout fermentatio...

Celery (Apium graveolens L.) is a vegetable belonging to the Apiaceae family that widely used for its distinct flavor and contains variety of bioactive metabolites with healthy properties. Some celery ecotypes cultivated in specific territories Italy have recently attracted attention consumers scientists because their peculiar sensorial nutritional In this work, volatile profiles white “Sedano ...

Thermophilic bacteria play an important role in aroma formation during pile-fermentation process of dark tea. With the aim to reveal impact thermophilic on volatile compounds tea, Bacillus licheniformis (thermophilic bacteria) were inoculated into sun-dried green tea for spontaneous fermentation. In this study, headspace solid phase microextraction combined gas chromatography mass spectrometry ...

This review aims at summarizing the most recent updates in the field of acrylamide (AA) formation (mechanism, conditions) and the determination of AA in a number of foods (fried or baked potatoes, chips, coffee, bread, etc). The methods applied for AA detection [Capillary Electrophoresis-Mass Spectrometry (CE-MS), Liquid Chromatography-Mass Spectrometry (LC-MS), Non-Aqueous Capillary Electropho...

The efficiency of pencil lead fiber was investigated for effective head-space solid-phase microextraction (HS-SPME) of methamphetamine (MAMP) from aqueous standard solutions without chemical derivatization prior to gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) analyses. Most effective experimental parameters such as extraction temperature and time, sample pH, and salt...