Process
In nature, BioPDO is made from the fermentation of glycerol in yeast. However, DuPont has managed to engineer this glycerol functionality into a strain of Escherichia coli bacterium (hence referred to here as "E. coli"), thereby allowing industrial-scale fermentation of glycerol in a bioreactor. After the E. coli bacteria produce sufficient BioPDO product, a method to separate the BioPDO from the cellular broth that comes out of the bioreactor is needed. The separation scheme proposed by DuPont follows the following steps: microfiltration and ultrafiltration, ion exchange, flash evaporation, and distillation.
Read more about this topic: Bioseparation Of 1,3-propanediol
Famous quotes containing the word process:
“The process of writing has something infinite about it. Even though it is interrupted each night, it is one single notation.”
—Elias Canetti (b. 1905)
“The moralist and the revolutionary are constantly undermining one another. Marx exploded a hundred tons of dynamite beneath the moralist position, and we are still living in the echo of that tremendous crash. But already, somewhere or other, the sappers are at work and fresh dynamite is being tamped in place to blow Marx at the moon. Then Marx, or somebody like him, will come back with yet more dynamite, and so the process continues, to an end we cannot foresee.”
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