Question: are reducing sugars present in potatoes?
Answer: On average, potatoes contain 19.4% of carbohydrates, mainly starch, and some sucrose, fructose and glucose within the range of 13.3–30.53% (Pavlista, Ojala, 1997; Smith, 1975). ... Optimum content of reducing sugars in potatoes is 0.1%, and it should not exceed 0.33% (Davies, Viola, 1992).