In vivo (super 13)P nuclear magnetic resonance investigation of tellurite toxicity in Escherichia coli

Article Abstract:

The physiological state of escherichia coli exposed to tellurite or selenite is compared by using the noninvasive technique of phosphorous-31 nuclear magnetic resonance spectroscopy. Glucose-fed Escherichia coli HB101 cells containing a normal pUC8 plasmid with no tellurite resistance determinants present or the pTWT100 plasmid which contains the resistance determinants tehAB is studied.

Analysis, Nuclear magnetic resonance, Selenite

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Influence of apple cultivars on inactivation of different strains of Escherichia coli O157:H7 in apple cider by UV irradiation

Article Abstract:

The effect of different apple cultivars upon the UV inactivation of Escherichia coli O157:H7 strains within unfiltered apple cider was studied and presented. Findings of the study reveal that regardless of the apple cultivar used, processed by 14mJ of UV irradiation, a minimum 5-log reduction is achieved for all of the strains of E.coli O157:H7 tested.

Ultraviolet radiation, Microbiological research

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