Template talk:Carbohydrates

is fructose a reducing sugar?
I think fructose is not a reducing sugar. reducing power is even a way to differenciate aldose and ketose. — Preceding unsigned comment added by Nicolas0318 (talk • contribs) 20:03, 25 January 2011 (UTC)
 * Ketoses can isomerize via tautomeric shift, allowing the carbonyl to migrate along the chain. As a result, they can be converted into aldoses. And the same conditions for qualitative analysis that one uses to test for reducing sugars are the ones that can easily promote this isomerization. See for specific info about fructose and others. DMacks (talk) 20:23, 25 January 2011 (UTC)