Daily Quiz for February 14, 2020

By Mike Nolan

This topic has 7 replies, 7 voices, and was last updated 4 years, 9 months ago by RiversideLen.

Viewing 8 posts - 1 through 8 (of 8 total)

Author

Posts
February 14, 2020 at 12:30 am #21260
Mike Nolan
Keymaster
Which type of sugar has the lowest temperature of caramelization?

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

Spread the word
February 14, 2020 at 7:45 am #21261
BakerAunt
Participant
I missed it.
February 14, 2020 at 8:34 am #21263
Joan Simpson
Participant
I missed it.
February 14, 2020 at 8:39 am #21264
skeptic7
Participant
I had no idea so I guessed at random. It helps to be lucky.
February 14, 2020 at 10:47 am #21265
tb2020
Participant
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!
February 14, 2020 at 11:02 am #21266
Italiancook
Participant
I knew this, but I managed to choose the wrong answer. I was in a hurry is my excuse.
February 14, 2020 at 12:48 pm #21270
Mike Nolan
Keymaster
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.
February 14, 2020 at 1:54 pm #21274
RiversideLen
Participant
I got it but it was a lucky guess.
Author

Posts