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Business
Proterro Scales Up Photobioreactor
by Marc S. Reisch
October 7, 2013
| A version of this story appeared in
Volume 91, Issue 40
Proterro, a start-up firm focused on making sugar for biobased fuels and chemicals, has scaled up the design of a modular polyethylene photobioreactor and is installing the reactor at a pilot plant in Florida. Patented cyanobacteria inside the plastic cylinder generate a fermentation-ready sugar stream on a diet of water, carbon dioxide, and sunshine. The firm expects to produce sugar at around 5 cents per lb, much lower than the current market price of about 18 cents per lb.
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