Our process

How it’s made

Most everyday consumer and industrial products are made using non-renewable resources, such as petrochemicals. The overuse of these finite resources is not sustainable.
100% Plant-based 1,3-propanediol is manufactured through a proprietary fermentation processing using naturally-derived glucose instead of petroleum feedstocks.


Renewably sourced feedstocks are harvested, dried and then wet-milled to create a range of carbohydrate-rich feedstocks such as glucose.



Glucose is converted into 1,3-propanediol using a patented microorganism under exact temperature and conditions.



The 1,3-propanediol is refined to a final purity of 99.7% by deactivating and removing the microorganism, water and other byproducts.

Production from the ground up

The manufacturing plant in Loudon, TN, is located adjacent to DuPont Tate & Lyle’s corn wet mill that supplies glucose from corn starch. The glucose is converted to 1,3-propanediol through a fermentation process that uses a patented microorganism under exact temperatures and conditions.

Visit our sustainability page to learn more about the ways DuPont Tate & Lyle Bio Products drives sustainable change by providing greener ingredient alternatives for a variety of industries.

Where to buy

DuPont Tate & Lyle offers an extensive network of distributors. Find one in your region.

Request a sample

Formulators and designers can experience the performance of DuPont Tate & Lyle products by requesting a sample.