Does boric acid block urease?

aeiham at aeiham at
Wed Sep 28 15:51:01 EST 1994

A question that could save us a lot of time and money...

Does boric acid block urease actvity?

We're collecting leachate from a large scale lysimeter experiment, and have
been using boric acid in the collection vessels to prevent denitrifciation etc.
However, as urease seems to be significant as a free enzyme, we don't know
if we've been stopping Urea->NH3.

If not we'll go to using phenyl phospho di-amidate or something.

Thanks in advance, Terry Brown
Lincoln Environmental
Private Bag 3062 Hamilton
New Zealand
Ph. 07 838 5901
Fax 07 838 5372

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