Sugar
Cooking and processing
Inverted sugar
Table sugar (As well as brown sugar and a bunch of powdered sugar) is typically sucrose, a specific disaccharide (two sugars together).
When you add a little acid to sucrose,
it breaks this double sugar down into its constituents, glucose and fructose.
This happens naturally in jams, jellies, and in cuisines/dishes that use both sugar and sour things (recipes often ask for lemon juice or cream of tartar, but anything acidic will do).
Inverted sugar tastes a little sweeter,
because fructose is itself sweeter than glucose, and than the original sucrose.
It can also be a little smoother, because it now doesn't crystallize as easily.
Inverted sugar is also loosely associated with syrups,
- in part because while cooking, you're likely boiling off water means it is also associated with being more syrupy.
- inverted sugar is often sold as a syrup.
See also:
Caramel
Molasses
By-product of refining sugarcane or sugarbeet into sucrose.
Roughly speaking, when you boil much of the plant to separate out much of the sugar out, molasses is what is left.
Exactly how messy that is depends on what you put in.
Molasses contains relatively little sugar (depending on how much you boil it), and may still contain more vitamins and minerals because they were the rest of the plant.
While still containing sugar, and mostly edible, the taste is far from sugar's taste,
so it was
sometimes eaten,
sometimes thrown away, and
found other uses, including distillation in rum, citric acid production, yeast production.
adding taste to e.g. brown sugar (arguably adding back), rye, soy sauce, some beers, etc.
(TODO: difference between sugarbeet molasses and sugarcane molasses?)
Sugarcane molasses
Sugarbeet molasses
Brown sugar
Brown sugar is usually the combination of sucrose and molasses.
Exactly what comes in via the molasses may vary, and it may imply a little invert sugar (see below).
The combination, proportions, and product names vary regionally.
Types of sugar
tl;dr:
- sucrose is the combination of glucose+fructose, found e.g. in sugarbeet and sugarcane
- table sugar is typically sucrose
- ('inverting' sugar separates the two)
- fructose is naturally common, e.g. in fruit
- glucose is the most central (and our body's most central, and easiest, fuel)
- e.g. starch and cellulose are chemically rather longer - which also implies you barely process them
Monosaccharides
Glucose
Fructose
Galactose
Dextrose
Disaccharides
A disaccharade, or double sugar, is two monosaccharides joined.
This e.g. includes sucrose, lactose, and maltose.
Sucrose
Lactose
Maltose
Longer saccharides
Effects of sugar
TODO