| abstract |
This invention relates to a liquid composition comprising an enzyme and a boronic acid or borinic acid derivative enzyme stabilizer of formula (I), where R1 is an optionally substituted fused aromatic ring structure containing 14 or 18 carbon atoms in the ring, or an optionally substituted monocyclic or fused aromatic heterocyclic ring structure containing up to 17 carbon atoms in the ring, or an optionally substituted monocyclic or fused quinonoid ring structure containing up to 18 carbon atoms in the ring; R2 has formula (II) where X is the same or different and selected from hydrogen, C1-C6 alkyl, substituted C1-C6 alkyl, aryl substituted aryl, hydroxy, hydroxyl derivative, halogen, amine, alkylated amine, amine derivative, nitro, thiol, thiol derivative, aldehyde, acid, acid salt, ester, sulfonate or phosphonate, an o,p and q may be the same or different and may each be 0, 1 or 2; n and m may be the same or different and may each be 0 or 1; R3 is the same or different as R1 and selected from R1, or R3 is a hydroxyl group, or R1 and R3 are both optionally substituted monocyclic or dicyclic aromatic ring structures. |