Evaluation location: Texas, United States
Tubers were produced in three reps: 1) tuberlings grown in Kula, Maui, HI field; 2) seedlings grown in Kula, Maui, HI field; and 3) seedlings grown in greenhouse in Strugeon Bay, WI. Total AOA in tuber extracts was estimated using the DPPH (2,2-Diphenyl-1-pierylhydrzyl) method. Trolox was used as a standard, and total AOA was expressed as micrograms of Trolox equivalents per gram of tuber fresh weight. An average was calculated on the three tuber reps.