Abstract
The quantitation of .alpha.-chaconine and .alpha.-solanine by TLC agreed with the total glycoalkaloid (TGA) content as determined by titration. The TGA level of potato slices approximately doubled to 26-30 mg/100 g fresh weight during the 7 h incubation period. Soaking of potato slices resulted in lower increases. Incubation at 25.degree. C resulted in higher TGA levels than at 5.degree. C. The initial .alpha.-chaconine/.alpha.-solanine ratio was 1.42, but with time and temperature changed to 2.4-2.8 in unsoaked slices and 1.5-1.6 in soaked slices.