Evaluation of the enzymatic properties of DNA (cytosine-5)-methyltransferase M.ApeKI from archaea in the presence of metal ions.

We previously identified M.ApeKI from Aeropyum pernix K1 as a highly thermostable DNA (cytosine-5)-methyltransferase. M.

Enhanced generation of active oxygen species induced by O fine bubble formation and its application to organic compound degradation.

By using O fine bubbles that promote the mass transfer of O to the liquid phase and the conversion of the dissolved O into active oxygen species with a high oxidation potential, an improved liquid-phase oxidation technique was developed to accelerate the degradation of an organic compound at a constant O flow rate. By the use of a dielectric-barrier-discharge reactor, O was converted into O at an O flow rate of 0.56 mmol/(L·min), with 5 mol% O-to-O conversion.