US researchers develop sustainable protein-based fibre from yeast biomass

The new yeast-based material. PIC/Getty Images

US researchers have developed a sustainable, protein-based fibre using the yeast biomass remaining after alcohol and drug production.

The fibre is stronger than natural fibres and can be produced for USD 6 or less per kilogram (compared to USD 10-USD 12 for wool).

In this new study, proteins were extracted from the yeast, dissolved in a solvent, and forced through a spinneret to create continuous fibres, which were then spun into yarn.

On pilot basis, the team has created 450 kg of the material that prevents the release harmful chemicals into the environment. The fibre is biodegradable and will naturally decompose after disposal.

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