disaccharides

Two-unit sugar molecules

Disaccharides are sugars formed when two simple sugars (monosaccharides) bond together.

Common examples include sucrose (table sugar, from glucose and fructose), lactose (milk sugar, from glucose and galactose), and maltose (from two glucose molecules).

The body must break disaccharides down into their component simple sugars before absorbing them.

People who lack the enzyme to digest lactose are lactose intolerant.

types

maltose

Two-glucose disaccharide

  • lactuloseSynthetic sugar, medicinal purgative
nutrition

carbohydrates

Sugar-based energy compounds

sweetener · energy · glucose · fructose · galactose · table sugar · malt sugar · food · beverage · glycemic

biochemistry

hydrolysis

Water-induced bond cleavage

  • enzymesReaction-speeding proteins
  • sucraseEnzyme hydrolyzing disaccharides
  • maltaseEnzyme cleaving malt sugar

lactase · digestion · absorption · metabolism · glycolysis · catabolism · intestinal · deficiency · intolerance · fermentation

sources

cane

Stick for support

maple · honey · malt · barley · milk · dairy · mushrooms · insects · bread · beer

structure

covalent

Sharing electrons between atoms

  • linkageConnected system of parts
  • bondBinding tie or connection
  • alphaFirst Greek letter

beta · condensation · dehydration · hydrolysis · molecule · synthesis · reducing · configuration

Categories
Opposites
molecular size/complexity

disaccharidespolysaccharides

Multi-unit sugar polymers

monosaccharides · starches · cellulose · glycogen · complex carbohydrates

Family

disaccharide

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Concrete · Rated G