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ARS Home » Plains Area » Fargo, North Dakota » Edward T. Schafer Agricultural Research Center » Small Grain and Food Crops Quality Research » Research » Research Project #445547

Research Project: Evaluation of Postharvest Processing Quality among New Public Potato Clones

Location: Small Grain and Food Crops Quality Research

Project Number: 3060-21430-009-020-T
Project Type: Trust Fund Cooperative Agreement

Start Date: Nov 27, 2023
End Date: Dec 31, 2024

Trial collaborator for Potatoes USA SNAC chip and National Fry Processor 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. Additionally, evaluation of tuber glycoalkaloid concentrations impacting food safety will be quantified among select potato clones.

For the NFPT, 68 russet fry clones will be grown at 6 production locations (WA, OR, ID, ND, WI, and ME) and will be shipped to the USDA-ARS Potato Research Worksite 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. Physical attributes including tuber length, width, height, brine specific gravity, and internal defects will be measured. 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 storage) and asparagine (early storage).