In summary, non-traditional potato species grown in certain
areas of South America exhibit promising potential for human
nutrition, and likewise for breeding programmes from the point of
view of tuber protein quantity and quality. Furthermore, the study
confirmed the significance of patatin, the main storage protein of
potato tubers, in terms of its nutritional value. Patatin in tubers of
S. goniocalyx was found to have significantly higher EAAIadult value
than total tuber protein. This suggests that this species may have
potential in potato breeding programmes and in human nutrition.
This species also showed a favourable ratio of protein to nonprotein
nitrogen components in tubers compared not only with
other tested non-traditional potato species but also with the
widely grown cv. Desire´e of S. tuberosum