Abstract
The effect of Vitamin K, on the inhibition of oxygen uptake in Bacillus brevis (2611), Bacillus megaterium (1368) and Flavobacterium aurantiacum by aflatoxin B 1 (AFB) has been investigated. At 1.5 mM, vitamin K completely reversed oxygen inhibition by 10 μg ml AFB in the three bacteria and by 50 μg ml APB in B. brevis, the most susceptible of the three bacteria to AFB. Vitamin K did not reverse the inhibitory effect of 100 μg ml AFB in any of the three bacteria except B. megaterium, neither did 1.5 mM 2,4-dinitrophenol (DNP) reverse the inhibition at 10 μg ml and 100 μg ml levels of AFB in any of the three bacteria.
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