Maltose

Maltose is a disaccharide composed of two glucose molecules joined by an α(1→4) glycosidic bond. It is a reducing sugar formed during the breakdown of starch.

Glucose: Glucose is a six-carbon monosaccharide that serves as a major energy source and building block in organisms. Each maltose molecule contains two glucose units.
Amylase: Amylase is an enzyme that hydrolyzes α-linked glucose polymers such as starch and glycogen. Amylase digestion releases maltose and related short carbohydrates from starch.
Malting: Malting is the controlled germination and drying of cereal grains to develop enzymes and modify their reserves. During germination, grain enzymes release maltose from starch.
Sucrose: Sucrose is a disaccharide of glucose and fructose joined through both anomeric carbons. Unlike maltose, sucrose is nonreducing and contains fructose.
Glycosidic bond: A glycosidic bond is a covalent linkage joining a sugar’s anomeric carbon to another group. This bond connects maltose’s two glucose units.
Maltase: Maltase is an enzyme that hydrolyzes maltose into two glucose molecules. It breaks the bond that joins maltose’s glucose units.
Beer: Beer is an alcoholic beverage produced by fermenting sugars in a wort commonly made from malted grain. Maltose is a major fermentable sugar in many beer worts.
Lactose: Lactose is a reducing disaccharide of galactose and glucose joined by a β(1→4) bond. Its sugar components and β linkage differ from maltose’s two glucose units and α linkage.
Reducing sugar: A reducing sugar can donate electrons because it has a free anomeric carbon capable of opening to a carbonyl form. Maltose’s free anomeric carbon gives it reducing properties.
Starch: Starch is a plant storage polysaccharide made of glucose, chiefly in amylose and amylopectin forms. Its enzymatic breakdown produces maltose.

Linked from 10 pages