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Gluconobacter oxydans – potential biological agent for binding or biotransformation of mycotoxins (CROSBI ID 262020)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Markov, Ksenija ; Frece, Jadranka ; Pleadin, Jelka ; Bevardi, Martina ; Barišić, Lidija ; Gajdoš Kljusurić, Jasenka ; Vulić, Ana ; Jakopović, Željko ; Mrvčić, Jasna Gluconobacter oxydans – potential biological agent for binding or biotransformation of mycotoxins // World mycotoxin journal, 12 (2019), 2; 153-161. doi: 10.3920/WMJ2018.2324

Podaci o odgovornosti

Markov, Ksenija ; Frece, Jadranka ; Pleadin, Jelka ; Bevardi, Martina ; Barišić, Lidija ; Gajdoš Kljusurić, Jasenka ; Vulić, Ana ; Jakopović, Željko ; Mrvčić, Jasna

engleski

Gluconobacter oxydans – potential biological agent for binding or biotransformation of mycotoxins

The potential application of viable and heat- treated cells of Gluconobacter oxydans for binding or degradation of aflatoxin B1 (AFB1), citrinin (CIT), ochratoxin A (OTA) and patulin (PAT) in liquid matrix was investigated. Experiments were conducted using uncontaminated and toxin-containing YPM (yeast- peptone- mannitol) medium and inoculated with a bacterium suspension of either viable or heat- treated cells (108 cfu/ml) and incubated at 28 °C for 24 h. The unbound AFB1 and OTA were quantified by liquid chromatography tandem mass spectrometry (LC-MS/MS), whereas CIT and PAT were quantified by high performance liquid chromatography (HPLC). Obtained results suggest that G. oxydans is able to bind various mycotoxins by 26 to 94%. Viable cells showed the best binding ability towards OTA and PAT (80.8 and 93.8%, respectively), while heat- treated cells bound less than 50% of tested mycotoxins. Fourier transform infrared spectroscopy (FTIR) showed that partial removal of mycotoxins involves physical binding of the toxin to the proteins and polysaccharides constituting the bacterial cell wall. Since mycotoxins contain numerous functional groups that multiply the IR spectra upon binding to bacteria, the precision of FTIR monitoring of bacteria-mycotoxin interactions is limited.

Gluconobacter oxydans, mycotoxins, IR-spectra, cell wall components, PCA

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

Podaci o izdanju

12 (2)

2019.

153-161

objavljeno

1875-0710

1875-0796

10.3920/WMJ2018.2324

Povezanost rada

Biotehnologija

Poveznice
Indeksiranost