Now, I could be wrong but in TP I don't believe the Master Sword glows except when it's first drawn (and, later, when it soaks up son Sol juice but that doesn't really count).
And in OoT it only glows right before the final blow and, indeed, doesn't exhibit any special properties beyond being a time-key until then.

In Wind Waker, on the other hand, it glowed the whole time Medli and Makar were doing their thing.


Unless I am mistaken, that means it's not actively being enchanted in these games.