Animal and vegetable fats and oils. Detection and identification of a volatile organic contaminant by GC/MS

2015 ◽  
Keyword(s):  
Fats And Oils ◽  
Organic Contaminant ◽  
Detection And Identification ◽  
Volatile Organic

scholarly journals Detection and Identification of Microbial Volatile Organic Compounds of the Green Mold Disease

2020 ◽  
Vol 11 (2) ◽  
pp. 14-28
Author(s):  
Dalma Radványi ◽  
András Geösel ◽  
Zsuzsa Jókai ◽  
Péter Fodor ◽  
Attila Gere
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Solid Phase ◽  
Gas Chromatography Mass Spectrometry ◽  
Identification System ◽  
Mushroom Species ◽  
Detection And Identification ◽  
Volatile Organic ◽  
Microbial Volatile Organic Compounds ◽  
Green Mould

Button mushrooms are one of the most commonly cultivated mushroom species facing different risks e.g.: viral, bacterial and fungal diseases. One of the most common problems is caused by Trichoderma aggressivum, or ‘green mould' disease. The presence or absence of mushroom disease-related moulds can sufficiently be detected from the air by headspace solid-phase microextraction coupled gas chromatography-mass spectrometry (HS SPME GC-MS) via their emitted microbial volatile organic compounds (MVOCs). In the present study, HS SPME GC-MS was used to explore the volatile secondary metabolites released by T. aggressivum f. europaeum on different nutrient-rich and -poor media. The MVOC pattern of green mould was determined, then media-dependent and independent biomarkers were also identified during metabolomic experiments. The presented results provide the basics of a green mould identification system which helps producers reducing yield loss, new directions for researchers in mapping the metabolomic pathways of T. aggressivum and new tools for policy makers in mushroom quality control.

scholarly journals Detection and Identification of VOCs Using Differential Ion Mobility Spectrometry (DMS)

Molecules ◽  
2021 ◽  
Vol 27 (1) ◽  
pp. 234
Author(s):  
Wojciech Fabianowski ◽  
Mirosław Maziejuk ◽  
Monika Szyposzyńska ◽  
Monika Wiśnik-Sawka
Keyword(s):  
Organic Compounds ◽  
Ion Mobility Spectrometry ◽  
Ion Mobility ◽  
Electric Field Intensity ◽  
Ion Temperature ◽  
Acetate Esters ◽  
Differential Ion Mobility Spectrometry ◽  
Detection And Identification ◽  
Volatile Organic ◽  
First Time

The article presents a technique of differential ion mobility spectrometry (DMS) applicable to the detection and identification of volatile organic compounds (VOCs) from such categories as n-alkanes, alcohols, acetate esters, ketones, botulinum toxin, BTX, and fluoro- and chloro-organic compounds. A possibility of mixture identification using only the DMS spectrometer is analyzed, and several examples are published for the first time. An analysis of different compounds and their mechanisms of fragmentation, influence on effective ion temperature, and high electric field intensity is discussed.

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