00:03
Today, we are going to talk about reducing sugars and non -reducing sugars.
00:09
But before we do that, we need to speak about hemicatols and acetyles, which is an important part of what makes a sugar reducing or non -reducing.
00:24
Hemicatols are compounds that contain an or and an oh group at the anameric carbon.
00:32
So you have an o -h group and an or group at the anameric carbon, and acetyls have two or groups at the inameric carbon.
00:50
Now, this pertains to sugars because reducing sugars have the hemicacetals at the anamacaric carbon, because the reducing sugars need this o .h group as opposed to non -reducing sugars, which has, which, lacks in oh groups and therefore have acetyls.
01:11
You can see that here when looking at these two different sugars.
01:15
This sugar is a monosaccharide and it's the well -known glucose.
01:19
And as you can see, here it's animeric carbon.
01:23
And anemaric carbon is just the carbon that's attached to the carbonyl.
01:30
Okay.
01:30
And so you have, again, the anemaric carbon has an oh group.
01:34
So this is a hemiazepo.
01:36
And this oh group is then able to go and reduce other compounds.
01:41
Here, this sucrose is a dysaccharide, and its animeric carbon is right here...