Newly harvested potato tubers have been reported to contain
up to 460 mg AA kg1 fresh matter (FM) (Han, Kosukue,
Young, Lee, & Friedman, 2004) depending primarily upon the cultivar,
the maturity of the tubers at harvest, the sampling method,
and — to almost as great an extent — the environmental conditions
under which they were grown. Several authors have described
considerable reduction in the levels of AA during
cooking and storage in potatoes as well as in vegetables, with
losses that vary widely according to cooking method (Lešková
et al., 2006).