Daily Quiz for February 14, 2020

[Mike Nolan]

Which type of sugar has the lowest temperature of caramelization?

[See the full post at: Daily Quiz for February 14, 2020]

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[BakerAunt]

I missed it.

[Joan Simpson]

I missed it.

[skeptic7]

I had no idea so I guessed at random. It helps to be lucky.

[tb2020]

Very proud to say I got this - and here's how: thinking about the structure of each molecule - fructose has the least number of bonds / is the smallest sugar being only a 5-member ring. Less bonds to break = less energy to break the total molecule = less heat neeeded to break it up = carmelization starting at lower temp. Wooo!

[Italiancook]

I knew this, but I managed to choose the wrong answer. I was in a hurry is my excuse.

[Mike Nolan]

That's a great explanation. I'd have to spend quite a bit of time with an organic chemistry or food chemistry textbook to come up with that.

Does that mean lactose has a more complicated structure than glucose?

Sucrose is a disacchaaride composed of one glucose and one fructose molecule, but unless it has been inverted to separate the two types of sugar molecules, it won't have the simpler fructose structure and lower caramelization point.

[RiversideLen]

I got it but it was a lucky guess.

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