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Journal of Environmental Waste Management and Recycling | Volume 1
March 05-06, 2018 | London, UK
Recycling & Waste Management
5
th
International Conference on
P
aper is a composite consisting of cellulose, hemicellulose
and lignin. The paper recycling process hence require
the ligno-cellulosic enzymes like cellulase and xylanase for
modification of paper pulp characteristics. A low molecular
weight cellulase - xylanase complex (14KDa)was co-produced
using bacterial and fungal systems and compared for their
efficiency in paper bleaching efficiency. Co-existence of
these enzymes was found to be advantageous in paper pulp
modification and in deinking applications. Defibrillations,
crack formation and changes in functional groups was evident
from the SEM and FT-IR analysis of paper pulp following the
enzyme treatment. The enzyme facilitated a better reduction
of Kappa number and Hexenuronic acid (Hex A) compared
to earlier studies. A Δ brightness of approximately 10% was
achieved in case of both cellulase and xylanase for different
treatment time. The tear strength of recycled paper was
also found to increase after the enzymatic treatment. The
fungal enzymes were better in biobleaching applications
compared to enzymes from bacterial systems. The enzyme
mediated bio bleaching contributes to improved solid waste
management efficiency and results in a eco-friendly and
cleaner technology for paper and pulp industries.
e:
nvkibt@gmail.comNew possibilities of microbial enzyme cocktails in paper recycling
Nathan Vinod Kumar, Mary Esther Rani, Subha Rajam K, Gunaseeli Rathinasamy
and
Kannan N D
National Institute of Oceanography-CSIR, India