Journal
ENVIRONMENTAL CHEMISTRY LETTERS
Volume 21, Issue 1, Pages 403-427Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s10311-022-01505-x
Keywords
Lignin; Polylactide; Biopolymer; Biodegradation; Microorganisms; Enzymes; Muconic acid
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Sustainable bioplastics derived from biomass are being developed as a solution to global warming and plastic pollution. The production of biopolymers from bioresources and organic waste is expected to increase, leading to a reduction in waste accumulation.
Global warming and plastic pollution result from the massive use of fossil fuels, calling for the development of sustainable bioplastics derived from modern biomass. Bioplastic production is expected to increase to 2.43 million tons globally in 2024. In particular, the production of biopolymers from bioresources and organic waste should highly reduce waste accumulation. Biopolymers can be produced by employing microbes or by using monomers from agro-resources. Here we review the use of lignin and polylactic acid for polymer production using enzymes and microorganisms. Carnobacterium, Enterococcus and Aspergillus niger show high lactic acid productivity of about 0.4-1.4 g/L/h. Lignin and polylactic acid can also be transformed into value-added chemicals such as muconic acid, hydrouronic acid, adipic acid and terephthalic acid.
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