Patent ID: 8137477

Claim:
Method of cleaning a surface attached with at least one chewing gum lump whereby said cleaning is at least partly based on an enzymatic degradation of at least one biodegradable polymer in said chewing gum lump and whereby said enzymatic degradation is established by the application of a cleaning agent comprising at least one enzyme to which said at least one polymer forms substrate and whereby said cleaning agent comprising said at least one enzyme is added to said chewing gum lump subsequent to chewing and attachment of said chewing gum lump to said surface, wherein said cleaning agent comprises at least one enzyme in a liquid suspension or solution, wherein a concentration of said at least one enzyme is in the range of 0.0001 wt % to 70 wt % of the cleaning agent, wherein at least one of said at least one enzyme is selected from the group consisting of oxidoreductases, transferases, hydrolases, lyases, isomerases, ligases, lipases, esterases, depolymerases, peptidases and proteases, wherein at least one of said at least one enzyme has a molecular weight of 2 to 1000 kDa, and wherein said at least one enzyme is transported through the chewing gum lump or is invoking a chain-reaction resulting in a degradation of the polymer or polymers targeted by the applied enzyme.