The low ability of bacterial mixtures for OTA reduction at all examined
combinations of pH and OTA initial concentration is consistent to
the in vitro observations of del Prete et al. (2007),who studied the ability
of fifteen strains belonging to five oenological LAB species to reduce OTA
and reported decrease percentages of 8 to 28%. On the contrary, according
toMateo et al. (2010a), ten oenological strains of Oenococcus oeni reduced
OTA ca 50–70%, cultured in MLO medium, whereas Fuchs et al.
(2008) reported OTA reductions of N98% by Lactobacillus acidophilus in
MRS broth after incubation for 4 h at 37 °C. Such variability in the results
of different reports may be associated with strain diversity and origin of
isolation, suggesting that the detection and selection of OTA detoxifying
bacterial strains are a challenging task.
The low ability of bacterial mixtures for OTA reduction at all examinedcombinations of pH and OTA initial concentration is consistent tothe in vitro observations of del Prete et al. (2007),who studied the abilityof fifteen strains belonging to five oenological LAB species to reduce OTAand reported decrease percentages of 8 to 28%. On the contrary, accordingtoMateo et al. (2010a), ten oenological strains of Oenococcus oeni reducedOTA ca 50–70%, cultured in MLO medium, whereas Fuchs et al.(2008) reported OTA reductions of N98% by Lactobacillus acidophilus inMRS broth after incubation for 4 h at 37 °C. Such variability in the resultsof different reports may be associated with strain diversity and origin ofisolation, suggesting that the detection and selection of OTA detoxifyingbacterial strains are a challenging task.
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