Bio-based materials are products made wholly or partially from renewable biological sources, including plant tissues, extracts, and byproducts, rather than fossil fuels. For plant science, this field highlights how cellulose, lignin, starches, and other plant-derived compounds can be engineered into sustainable materials, driving research into crop composition, biomass conversion, and the biochemical pathways that produce these valuable substances. Understanding these processes not only supports greener manufacturing but also deepens insight into plant cell wall structure and metabolic engineering.
Researchers tested how well two microbial enzymes break down a new class of plant-derived plastics, finding that plastics made from a corn-based building block degrade faster than conventional petroleum-based equivalents, and that tweaking the plastic's chemical recipe can tune how quickly it breaks down in the environment.
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Plant-based furandicarboxylic acid (FDCA) polyesters were consistently more enzyme-degradable than petroleum-based terephthalate equivalents at the same aromatic content.
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Increasing aromatic diacid content in the polymer decreased hydrolysis rates for both enzyme types tested.
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The Humicola insolens cutinase enzyme was active across all 30 copolyesters tested, while Rhizopus oryzae lipase only degraded those with low aromatic content.
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