Location: Sugarbeet and Potato Research
Project Number: 3060-21430-008-005-T
Project Type: Trust Fund Cooperative Agreement
Start Date: Apr 1, 2019
End Date: Mar 31, 2024
To assist Potatoes USA (U.S. Potato Board) in the SNAC chip and National Fry Processing Trials (NFPT). Potato germplasm with low reducing sugar/acrylamide accumulation potential after storage will be identified and processing quality will be compared against industry standards.
For NFPT, 40 fry clones will be grown at 6 production locations and shipped to the USDA-ARS Potato Research Worksite (PRW) in East Grand Forks, MN, immediately after harvest. Upon receipt, the clones will be placed into 55 degress F (95% RH) for two weeks. Thereafter, the storages will be slowly cooled (0.4 degrees F/day) to a final temperature of 48 degrees F. Brine specific gravity will be assessed for each clone and sugars (reducing and sucrose) will be analyzed by YSI in samples taken from early, mid, and late storage (48°F). Fry samples will be prepared/delivered for third party acrylamide analysis (Early, Late) and asparagine (Early). For the SNAC chip trial evaluation, a replicated field trial will measure marketable yield of new chip clones (12). Storage sugar and chip profiles will be measured throughout 8 months of storage at 45 and 48 degree F storage. For SNAC field and storage trial, marketable yield will be assessed in a replicated field trial. Tuber sugars and postharvest chip quality will be characterized throughout 8 months of storage at two storage temperatures (45 and 48 degrees F). All data will be tabulated and supplied to Potatoes USA via the Variety Data Management (VDM) System.