Carbohydrate sweetness


(Nigel Williams) #1

My dad made a statement I’ve not been able to adequarely answer.

If sugar and bread (flour) are both carbohydrates why is one sweet and the other not.

I initially thought perhaps glucose isn’t sweet and fructose is, but I don’t think that is right.

The internet is so confusing and if I put carbohydrate and sweetness into Google the results are nothing to do with my question.

Thanks in advance for your help.


(A ham loving ham! - VA6KD) #2

if you hold a piece of bread in your mouth, after a few minutes it will start to taste sweet as the enzymes in your saliva (amylase) break down the starch into glucose.

Table sugar is one glucose molecule bonded to one fructose molecule. It’s the fructose that makes it super sweet. Glucose on it’s own is slightly sweet, but nothing compared to fructose.

Adding as well: A carbohydrate is just a molecule consisting of carbon, hydrogen and oxygen atoms. They come in numerous and quite different configurations.


(Nigel Williams) #3

Thanks

I’ve not eaten bread for over a year so I will have try this. I wonder whether flour on my tongue will that have a sweetness too.


(A ham loving ham! - VA6KD) #4

It might be hard to tell with raw flour. The starches change during the cooking process so that they’re easier for your gut to breakdown. You might find that the process takes a lot longer with raw flour, if it works at all.