Journal
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
Volume 53, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.seta.2022.102698
Keywords
Fossil fuels; Synthetic polymers; Biopolymers; Lignocellulosic biomass; Direct microbial conversion; Algal biorefinery
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The environmental problems caused by fossil fuels, the world's largest energy source, are well known. Additionally, nonrenewable energy sources such as petroleum are running out. In order to move towards a safe and sustainable future, major research labs around the world are trying to find breakthroughs in producing green biopolymers using natural/renewable agmresidues as a substrate. Using non-edible lignocellulosic biomass as a feedstock for biopolymer production does not interfere with food security, reduces emissions, and decreases stubble burning. Micro- and macroalgae are organic sources of biopolymers that have a wide range of applications in pharmaceutical, packaging, food, and biomedical fields.
Environmental problems associated with world's largest energy source namely fossil fuels are well known. In addition, petroleum and other nonrenewable energy sources are running out and will be depleted soon. However, many polymers are derived from petroleum. In the face of international movement away from oil-based polymers such as, general purpose polystyrene, polypropylene, polyethylene, terephthalate, high density and low density polyethylene, polycarbonate, polyvinyl chloride, and towards a safe and sustainable future, major research labs in the world are trying to uncover the big breakthrough, particularly via utilizing natural/renewable agmresidues as a substrate for green biopolymers. Considering, non-edible lignocellulosic biomass (LCB) as a feedstock for bio-polymers production as it does not interfere with food security, generate no tailpipe emissions, and also lead to reduction in stubble burning. Among possible organic sources of biopolymers, micro- and macroalgae, provides a wide variety of proteins, lipids, polyphenols, and polysachharides which are currently employed for pharmaceutical, packaging, food, and biomedical applications. Current review summarizes the key insights on microbial biopolymer production from LCB and algal biomass by means of circular bioeconomy. Biobased approach will not only reduce the process cost but also generates economy for farmers globally and promotes innovation in domestic manufacturing.
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