Unleashing the potential of ligninolytic bacterial contributions towards pulp and paper industry: key challenges and new insights.
Lignocellulose biomass predominantly constitutes the main feedstock for pulp and paper industry. Though some products of pulp and paper industry require the presence of lignin content, for most of the useful products formation lies in the efficient and selective removal of lignin component to make use of the intact cellulose fraction during the pretreatment of pulp. Lignin is a recalcitrant heteropolymer comprised of several complex stable bonds and linkages. The chemicals or intense energy processes used for delignification process release the hazardous chemicals compounds in the wastewater which cause toxicity and environmental pollution. The implementation of bacterial species has elucidated an effective approach in the generation of value-added products while degrading lignin from pulp biomass as well as detoxification of effluent. The direct use of bacterial cells in lignocellulose biomass and wastewater streams is promising as it outperforms the practical and technical constraints largely confronted by fungal and enzymatic means. The present review paper thus unleashed the potential of ligninolytic bacteria towards delignification of pulp biomass and treatment of effluent together with bioconversion of biomass and lignin into value-added products. Graphical abstract Schematic illustration of potential possible contribution of ligninolytic bacteria towards pulp and paper industry.
Department of Biotechnology, National Institute of Technology, Mahatma Gandhi Avenue, Durgapur, West Bengal, 713209, India.
Rashmi
R
Priyadarshinee
Department of Chemical Engineering, National Institute of Technology, Mahatma Gandhi Avenue, Durgapur, West Bengal, 713209, India.
Anuj
A
Kumar
Department of Chemical Engineering, National Institute of Technology, Mahatma Gandhi Avenue, Durgapur, West Bengal, 713209, India.
Tamal
T
Mandal
Department of Biotechnology, National Institute of Technology, Mahatma Gandhi Avenue, Durgapur, West Bengal, 713209, India. daliadasguptamandal@gmail.com.
Dalia
D
Dasguptamandal
D001419:Bacteria / Q000378:metabolism*; D001673:Biodegradation, Environmental; D052918:Environmental Restoration and Remediation / Q000379:methods*; D007220:Industrial Waste / Q000032:analysis*; D008031:Lignin / Q000378:metabolism*; D010209:Paper; D014865:Waste Disposal, Fluid / Q000379:methods*
D007220:Industrial Waste; C036909:lignocellulose; D008031:Lignin
Delignification; Lignin; Pulp; Toxicity; Value-added products
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