TECHNOLOGY FOCUS - BIOLOGY - Preferred Components: The hydrolytic enzyme is proteases, lipases, cutinases, and/or esterase (preferably lipase).    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The at least one aromatic dicarboxylic acid or its ester is terephthalic acid, dimethyl terephthalate, isophthalic acid, dimethyl isophthalate, 2,6-napthalene dicarboxylic acid, dimethyl-2,6-dicarboxylic acid, and/or dimethyl-2,6-naphthalate. The at least one aliphatic dicarboxylic acid or its ester is succinic acid, dimethyl succinate, glutaric acid, dimethyl glutarate, 2-methylglutaric acid, 3-methylglutaric acid, adipic acid, dimethyl adipate, oxalic acid, dimethyl oxalate, malonic acid, and/or dimethyl malonate. The sulfonated compound is a sulfonated mono or dicarboxylic acid or its ester or metal salt (preferably sulfosuccinic acid, 3-sulfobenzoic acid, 4-sulfobenzoic acid, 5-sulfosalicylic acid, sulfophthalic acid, sulfoterephthalic acid or 5-sulfoisophthalic acid or its ester or its salt).    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The co-polyester is combined with starch, protein, cellulose, wax, fillers, silicate fillers, polylactic acid, and/or polyhydroxyamide. The co-polyester further comprises at least one diol (preferably 1,2-ethane diol, 1,3-propane diol, 1,4-butane diol, 1,6-hexane diol, ethylene glycol, di(ethylene glycol), tri(ethylene glycol), poly(ethylene glycol), poly(alkylene ether) glycols, and/or poly(propylene ether)glycols); a sulfonated compound. The co-polyester comprises at least one aromatic dicarboxylic acid or its ester in an amount of at least 61 - 90 (preferably at least about 70, especially at least about 75, particularly at least about 80) mol.% based on total dicarboxylic acid in the co-polyester; at least one aliphatic acid or its ester in an amount of 1 - less than 40 (preferably 20 - less than 40) mol% based on total dicarboxylic acid in the co-polyester; and sulfonated compound (0.1 - 10) mol% based on total diol or total dicarboxylic acid in the co-polyester; dimethyl glutarate (about 17.5 mol%) and dimethyl 5-sulfoisophthalate (2 mol%), sodium salt, based on total dicarboxylic acid in the co-polyester; and at least one hydrolytic enzyme (0.1 - 10 wt.%). The co-polyester further comprises poly(ethylene glycol) in an amount of about 8 wt.%.Preferred Method: The contacting of the at least one hydrolytic enzyme is selected from spraying, painting, coating, applying, treating, and mixing the at least one hydrolytic enzyme with the co-polyester. The contacting of the at least one hydrolytic enzyme to the co-polyester occurs before degradation of the co-polyester by the microorganisms. The co-polyester is situated in a waste context (preferably solid waste, compost or wastewater treatment system).