The 6 references with contexts in paper N. Shadrova B., O. Pruntova V., G. Skitovich S. (2018) “Proteomic properties of Salmonella isolates” / spz:neicon:veterinary:y:2016:i:2:p:35-38

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Bhunia А.К. Pathogenic microorganisms in food products. – Saint-Petersburg: Professia, 2014. – 344 p.
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    The main source of human Salmonella infection is animal and plant products (meat, eggs, dairy products, fruit and vegetables). The modern area of foodstuff production, the so called “organic” farming, also increases risk of food poisoning including salmonellosis
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    . Within the last decade microbial identification of protein profiles or direct protein profiling has been used more frequently together with classical, and molecular and biological methods of microbial identification.

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Time-of-light MALDI mass-spectrometry for microorganism identification / Ye.A. Demidov, K.V. Starostin, V.M. Popik, S.Ye. Peltek // Vavilov Journal of Genetics and Breeding. – 2013. – Vol. 17, No 4/1. – Р. 758–764.
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    Besides, many ribosomal proteins are located in cell cytoplasm – up to the half mass of a growing cell, and their set remains unchanged not depending on external conditions and growth stage which ensures mass-spectrum reproducibility. Studies of intra- and inter-laboratory reproducibility demonstrated high reliability of MALDITOF method
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    . The study was aimed at proteomic properties of Salmonella isolates recovered from food products and feeds. MATERIALS AND METHODS Isolates. 27 Salmonella isolates recovered from foodstuffs and feeds in the Russian Federation by the FGBI «ARRIAH» microbiology laboratory in 2006–2010.

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Ben L.M., van Baar Characterisation of bacteria by matrix-assisted laser desorption/ionization and electrospray mass spectrometry // FEMS Microbiol. Rev. – 2000. – Vol. 24, No 2. – P. 193–219.
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    4364Moellerella --Yersinia -Yokenella 4364н/б — нет базы данных. 7,097TyphimuriumSalmonella Typhimurium «комбикорм No 16» lar protein fraction (direct protein profiling), i.e. without fractionation and protein purification, and obtain highly accurate and high resolution mass-spectra, unique for this species, characterizing the tested object on the “fingerprint pattern” principle
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    . Spectra comprising a mass-range of 2–20 kDa are usually used for microbial identification. Analysis of massspectra of E. coli in this range demonstrated only 30 out of 2000 proteins, calculated basing on E. coli sequencing data, in spectra [11].

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Dieckmann R., Malorny B. Rapid screening of epidemiologically important Salmonella enterica subsp. enterica serovars using Whole-Cell MALDI-TOF mass spectrometry // Appl. Environ. Microbiol. – 2011. – Vol. 77, No 12. – Р. 4136-4146.
Total in-text references: 3
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    the fact that microorganism database in the apparatus includes only 13 Salmonella serotypes and according to the Kauffman-White classification there are more than 2,600 of Salmonella serotypes in the present time the results of MALDI identification related to serotype determination can differ from results of classical serotyping. Bacteria identification using direct protein method
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    confirmed that all tested microorganisms belong to the Salmonella genus (Table 1). Herewith, microorganism identification criterion was within 2,236–2,649, which is indicative of high probability of identification.

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    , peak at m/z 6092 Da can be considered unique for Salmonella bacteria, and this information can be used when developing express-methods for microorganism detection immediately from material substance without preliminary isolation of pure cultures. Besides, peaks used to characterize the microorganism’s family and genus, according to data presented by Dieckmann R. and Marlony B.
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    , peaks typical of 5 epidemically important Salmonella serotypes: Enteritidis, Typhimurium, Virchow, Infantis, Hadar, were determined. Furthermore, there were determined potential serovardetermining ions, which can be used as biomarkers for serotypes Choleraesuis, Heidelberg, Gallinarum (Table. 3).

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    Furthermore, there were determined potential serovardetermining ions, which can be used as biomarkers for serotypes Choleraesuis, Heidelberg, Gallinarum (Table. 3). Obtained results confirm R. Dieckmann and B. Malorny’s conclusion
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    as far as Choleraesuis (Salmonella Choleraesuis «Bashkiria», Salmonella Choleraesuis «Il», Salmonella Choleraesuis «Len», Salmonella Choleraesuis «Mordovia», Salmonella Choleraesuis «Vladimir») and Enteritidis (Salmonella Enteritidis «Ru 3», Salmonella Enteritidis «Gleb», Salmonella Enteritidis «Pel») serotypes are concerned (Table. 3).

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Matrix-assisted ultraviolet-laser desorption of nonvolatile compounds / M. Karas, D. Bachmann, U. Bahr, F. Hillencamp // Int. J. Mass Spectrom. Ion. Process. – 1987. – Vol. 78. – P. 53–68.
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    When exposed to laser the matrix crystallized with the tested material actively absorbs laser irradiation which leads to its desorption. When transiting to gas-phase the matrix carries molecules of the tested substance and facilitates their ionization with formation of singly charged ions
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    . The method enables to perform direct mass-spectrometry of microbial cellu4. Ben L.M., van Baar Characterisation of bacteria by matrix-assisted laser desorption/ionization and electrospray mass spectrometry // FEMS Microbiol.

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    the fact that microorganism database in the apparatus includes only 13 Salmonella serotypes and according to the Kauffman-White classification there are more than 2,600 of Salmonella serotypes in the present time the results of MALDI identification related to serotype determination can differ from results of classical serotyping. Bacteria identification using direct protein method
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    confirmed that all tested microorganisms belong to the Salmonella genus (Table 1). Herewith, microorganism identification criterion was within 2,236–2,649, which is indicative of high probability of identification.

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McWhorter A., Haddock R, Nocon F. Trabulsiella guamensis, a new genus new species of the family Enterobacteriaceae that resembles Salmonella subgroups 4 and 5 / J. Clin. Microbiol. – 1991. – Vol. 29. – P. 1480
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    demonstrated in Maldi Biotyper database (Table 2) determined that peak 4363+1 Da is typical of many representatives of Enterobacteriaceae family, while peak at m/z 6092+1 Da is typical only of Salmonella и Trabulsiella guamensis bacteria. Trabulsiella bacteria were discovered in 1985 and originally were referred to Salmonella genus due to proximity of biochemical characteristics
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    . So, peak at m/z 6092 Da can be considered unique for Salmonella bacteria, and this information can be used when developing express-methods for microorganism detection immediately from material substance without preliminary isolation of pure cultures.