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United States Department of Agriculture

Agricultural Research Service

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Location: Sugarbeet and Potato Research

Project Number: 3060-43440-013-02-T
Project Type: Trust Fund Cooperative Agreement

Start Date: Oct 1, 2011
End Date: Sep 30, 2016

To assist the U.S. Potato Board in the National Fry Processing Trial by identifying potato germplasm with low reducing sugar/acrylamide accumulation potential after storage.

Eighty-eight french fry clones will be grown by cooperators at three locations and shipped to the PRW immediately after harvest. Upon receipt, the clones will be placed into 55 degrees F (95% RH) storage for two weeks. Thereafter the storages will be slowly cooled (0.5 degrees F/day) to a final temperature of 45 degrees F. After 0, 3 and 6 months of storage, the reducing sugar content will be analyzed and a sub-sample of each clone will be processed on the 1/20 scale french fry line as currently configured. French fry samples will be frozen, stored at -4 degrees C, and shipped on dry ice to Covance Company for acrylamide analysis. A second sub-sample will be taken, diced, then frozen in liquid nitrogen, stored at -80°C and shipped to Covance Company for asparagine analysis.

Last Modified: 10/17/2017
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