Properties and Fermentation Activity of Industrial Yeasts Saccharomyces cerevisiae, S. uvarum, Candida utilis, and Kluyveromyces marxianus Exposed to AFB1, OTA, and ZEA (CROSBI ID 253255)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Jakopović, Željko ; Hanousek Čiča, Karla ; Mrvčić, Jasna ; Pucić, Irina ; Čanak, Iva ; Frece, Jadranka ; Pleadin, Jelka ; Stanzer, Damir ; Zjalić, Slaven ; Markov, Ksenija
engleski
Properties and Fermentation Activity of Industrial Yeasts Saccharomyces cerevisiae, S. uvarum, Candida utilis, and Kluyveromyces marxianus Exposed to AFB1, OTA, and ZEA
In this paper the effect of aflatoxin B1, ochratoxin A and zearalenon on morphology, growth parameters and metabolic activity of yeasts Saccharomyces cerevisiae, Saccharomyces uvarum, Candida utilis and Kluyveromyces marxianus was determined. The results showed that the three mycotoxins affected the morphology of all these yeasts, primarily the cell diameter, but not their final cell count. Fourier transform infrared spectroscopy showed that the yeast membranes bound the mycotoxins, C. utilis in particular. The cell membranes of most yeasts underwent denaturation, except S. uvarum exposed to ochratoxin A and zearalenone. In the early stage of fermentation, all mycotoxin-exposed yeasts had lower metabolic activity and biomass growth than controls, but fermentation products and biomass concentrations reached the control levels by the end of the fermentation, except for C. utilis exposed to 20 μg/mL of zearalenone. The adaptive response to mycotoxins suggests that certain yeasts could be used to control mycotoxin concentrations in the production of fermented food and beverages.
mycotoxins ; yeasts ; yeast growth ; yeast morphology ; fermentation ; FTIR
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Podaci o izdanju
56 (2)
2018.
208-217
objavljeno
1330-9862
1334-2606
10.17113/ftb.56.02.18.5582
Povezanost rada
Biotehnologija, Prehrambena tehnologija