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PEF algae predator control system

December 27, 2016
AlgaeIndustryMagazine.com

A new PEF (pulsed electric field) system claims the capability of eliminating predators without harming algal cells.

Bedford, Massachusetts-based Diversified Technologies, Inc. is developing a new PEF (pulsed electric field) system that offers a non-chemical solution to algae predator control and cellular product extraction.

The company’s PEF System applies 1 to 20 µs very high voltage pulses that create a 1 to 50 kV/cm high voltage field across a liquid that induces electroporation of cell membranes in microbes, plant, and animal cells. Depending upon the desired effect, PEF voltage intensity lyses the cell membranes in plant cells or can selectively kill predators in predator control, while having little impact on the microalgae cells.

Capable of eliminating predators which can significantly add to the cost of growing algae at commercial scale because they can “crash” a pond in hours, the Diversified Technologies’ PEF System is a non-chemical, low electric field process that, according to the company, can decrease the cost of algal production and extraction. The process is being developed in cooperation with the Arizona Center for Algae Technology and Innovation (AzCATI) at Arizona State University.

Diversified Technologies’ PEF System is priced from $25,000.00 and its development is being funded under a USDA SBIR grant.

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