Parameter development of environmentally friendly lipase enzymatic deinking system

Enzymatic deinking is the environmentally friendly process that used to recycle the secondary fiber which is mostly are mixed office waste-paper (MOW). This process is the replacement of the traditional deinking process that uses a lot of chemical. The application of enzyme in the deinking process were reducing the uses of chemical and lower the waste pretreatment in the pulp and paper industries. Lipase is the enzyme that used to remove the oil-carrier-based inks or as the pitch control. The conducted of lipase assay shows that the optimum conditions of the lipase enzyme that are at temperature 40°C, 7.0 of pH value and concentration at 10 U/ml. The result of the deinking process shows that the paper were cleaning up by reducing the ink attachment to the paper and the strength of the surface of the paper were reducing due to the recycle of secondary fiber process