DELAYED ACID FOR GEL BREAKING

摘要

The present invention provides a method of breaking a crosslinked water-based gel, which method comprises: (i) providing a said gel and, present therewith, an enzyme and a substrate which is capable of being converted by the enzyme into an organic acid which breaks down the gel, and (ii) allowing the enzyme to catalyse the conversion of the substrate into the acid to cause thereby the breakdown of the gel.