A group of Japanese scientists suggest that potatoes could be a major weapon in reducing the risk of heart diseases and cancer if they are treated with ultrasound

The same was true when potatoes were subjected to ultrasound for at least 5 minutes after having kept them in water, with the antioxidants in the potatoes increasing by 1.2 times.
Presenting the study at the 240th National Meeting of the American Chemical Society (ACS), lead researcher Kazunori Hironaka said, “We found that treating the potatoes with ultrasound or electricity for 5-30 minutes increased the amounts of antioxidants-including phenols and chlorogenic acid-by as much as 50 percent.”
Source-Medindia