2012
DOI: 10.1111/j.1365-2672.2012.05414.x
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Volatile compound profiling for the identification of Gram-negative bacteria by ion-molecule reaction-mass spectrometry

Abstract: Aims Fast and reliable methods for the early detection and identification of micro‐organism are of high interest. In addition to established methods, direct mass spectrometry–based analysis of volatile compounds (VCs) emitted by micro‐organisms has recently been shown to allow species differentiation. Thus, a large number of pathogenic Gram‐negative bacteria, which comprised Acinetobacter baumannii, Enterobacter cloacae, Escherichia coli, Klebsiella oxytoca, Pseudomonas aeruginosa, Proteus vulgaris and Serrati… Show more

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Cited by 28 publications
(21 citation statements)
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“…This study has demonstrated that the culture conditions namely composition of culture media and duration of incubation, influence the range of product ions and count rates of the resultant VC mass spectra. The range and relative concentrations of bacterial VCs under varying physicochemical conditions has been previously observed in other research studies (O'Hara and Mayhew 2009;Chippendale et al 2011;Dolch et al 2012a;Dolch et al 2012b). The range and count rates of product ions detected are greater in TSB, a complex nutrient-rich commercially available culture media, compared to a SWF containing peptone, NaCl and FBS.…”
Section: Discussionsupporting
confidence: 72%
“…This study has demonstrated that the culture conditions namely composition of culture media and duration of incubation, influence the range of product ions and count rates of the resultant VC mass spectra. The range and relative concentrations of bacterial VCs under varying physicochemical conditions has been previously observed in other research studies (O'Hara and Mayhew 2009;Chippendale et al 2011;Dolch et al 2012a;Dolch et al 2012b). The range and count rates of product ions detected are greater in TSB, a complex nutrient-rich commercially available culture media, compared to a SWF containing peptone, NaCl and FBS.…”
Section: Discussionsupporting
confidence: 72%
“…43 IMR-MS using Hg ions as primary ions for subsequent IMR with neutral volatiles allowed VOCs profiling for the identification of Gram-negative bacteria. 44…”
Section: Ms-based Electronic Nose-direct Injection Msmentioning
confidence: 99%
“…Thus, volatile metabolites of goat cheeses were determined by IMS that allowed discriminating cheeses elaborated with pasteurized milk and industrial processing from samples from pasteurized milk and traditional processing, and from samples from raw milk and traditional processing using a simple principal component analysis (PCA) of the data . IMR‐MS using Hg ions as primary ions for subsequent IMR with neutral volatiles allowed VOCs profiling for the identification of Gram‐negative bacteria …”
Section: Introductionmentioning
confidence: 99%
“…Recent developments in analytical instrumentation and bioinformatics software have established metabolomics as an important research tool for studying ecological interactions between organisms (Kuske et al, 2005; Scotter et al, 2005; Bunge et al, 2008; Liang et al, 2008; Wihlborg et al, 2008; Mcneal and Herbert, 2009; O’Hara and Mayhew, 2009; LeBouf et al, 2010; Ramirez et al, 2010; Rasanen et al, 2010; Dolch et al, 2012; Juenger et al, 2012; Thorn and Greenman, 2012; Aponte et al, 2013; Kunze et al, 2013), while recent reviews described MVOCs biosynthesis (Davis et al, 2012; Penuelas et al, 2014). …”
Section: Introductionmentioning
confidence: 99%