title: Role of various enzymes for deinking paper: a review.
abstract: Paper manufacturing industries depend mainly on forests for wood, which is the basic raw material. Forest plays an important role in balancing the ecosystem to protect forest deinking and bleaching (recycling) of waste paper had gained a lot of importance. Conventional chemical deinking processes require large amount of chemicals which are toxic and hazardous to the environment, hence other effective deinking methods are needed. Enzymatic deinking (cellulolytic, hemicellulolytic and ligninolytic) has attracted enormous attention because of high efficacy and minimum environmental impact. For bleaching, enzymatic action (individual as well as in combination), along with physical treatment, makes the pulp more accessible to the chemicals and also to the amount of chemicals required to obtain similar levels of brightness. Strength properties and brightness of the pulp are improved by these treatment methods. With minimum impact on the environment, this review gives comprehensive information about the various methods used for the recycling of waste paper.
authors.affiliation: a Department of Chemistry , Samrat Prithviraj Chauhan Government College , Ajmer , India.
authors.forename: Arunika
authors.initials: A
authors.lastname: Saxena
authors.affiliation: b Faculty of Pharmacy and Pharmaceutical Sciences , Monash University Parkville Campus , Melbourne , Australia.
authors.forename: Prakram
authors.initials: P
authors.lastname: Singh Chauhan
mesh_terms: D004798:Enzymes; D007281:Ink; D010209:Paper; D059027:Recycling
chemical_list: D004798:Enzymes
keywords: Chemical deinking; brightness; enzymatic deinking; physical deinking; waste paper