Enzymic deinking of old newspapers with cellulase

Macro and micromechanics analysis of short fiber composites stiffness: The case of old newspaper fibers–polypropylene composites

“…Here, E 11 and E 22 are the longitudinal and transversal elastic modulus, calculated by the Halpin -Tsai equations [43]:…”

“…Some advantages of natural fibers as opposed to other reinforcing materials are their high availability, their biodegradability, and their relative low cost and density. Newspapers usually contain a high percentage of recycled fibers from wood and mineral fillers, and therefore, used newspapers become a potential source of reinforcing fibers [7][8][9][10][11]. In spite of their advantages, the use of cellulose fibers from newspaper as reinforcement elements for thermoplastics has not been extensively investigated [7].…”

The Enzymatic Deinking of Waste Papers by Engineered Bifunctional Chimeric Neutral Lipase – Endoglucanase

“…Because endoglucanase and lipase have shown high deinking efficiency (Gübitz et al 1998;Morkbak et al 1999;Marques et al 2003;Pelach et al 2003;Vyas and Lachke 2003), the authors assumed that the combined use of two enzymes could promote better deinking efficiency. With such assumption, a chimeric enzyme with endoglucanase and lipase activities was constructed in this study by an end-to-end fusion technique, in which the Lip catalytic domain at N-terminus was fused with the EG1 catalytic domain at C-terminus (Khandeparker and Numan 2008).…”

Preparation of Xylanase Loaded Biomass-based Deinking Agents and their Application in Secondary Fiber Recycling

“…The recycling of secondary fiber is an alternative process that can preserve green plants and save the environment in terms of pollution, water, and energy (Pelach et al 2003;Ibarra et al 2012). Recycling of secondary fiber requires the removal of printing ink from the waste paper through the deinking process, and the deinking agent is key to this process (Singh et al 2012;Lee et al 2013).…”