malt sugar

Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.


A disaccharide formed in the hydrolysis of starch and consisting of two d-glucose residues with a 1,4-α-glycoside linkage.
Synonym(s): malt sugar, maltobiose
Farlex Partner Medical Dictionary © Farlex 2012

malt sugar

The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


A disaccharide composed of two glucose molecule joined by a 1–>4 bond via a condensation reaction when amylase breaks down starch, as occurs in germinating seeds such as barley.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


(shug'ar) [Ult. fr. Arabic sukkar via L. succarum]
A sweet-tasting, low-molecular-weight carbohydrate of the monosaccharide or disaccharide groups. Common sugars include fructose, glucose, lactose, maltose, sucrose, and xylose. Oral or parenteral administration of sugars can prevent hypoglycemia caused by insulin or oral hypoglycemic agents.


Sugars are classified in two ways: the number of atoms of simple sugars yielded on hydrolysis by a molecule of the given sugar and the number of carbon atoms in the molecules of the simple sugars so obtained. Therefore, glucose is a monosaccharide because it cannot be hydrolyzed to a simpler sugar; it is a hexose because it contains six carbon atoms per molecule. Sucrose is a disaccharide because on hydrolysis it yields two molecules, one of glucose and one of fructose.

See: carbohydrate

beet sugar

Sucrose obtained from sugar beets.

birch sugar


blood sugar

Glucose in the blood, normally 60 to 100 mg/100 ml of blood. It rises after consumption of a meal to variable levels, depending on the content of the meal, the activity level of and medications used by the consumer, and other variables. In diabetes mellitus, fasting blood sugar levels exceed 126 mg/dl.
See: glucose

cane sugar

Sucrose obtained from sugar cane.

fruit sugar


grape sugar


invert sugar

Mixture consisting of one molecule of glucose and one of fructose resulting from the hydrolysis of sucrose.

malt sugar


milk sugar


muscle sugar

Inositol. It is not a true sugar.

simple sugar

A sugar molecule made of few components (e.g., a monosaccharide or disaccharide).

wood sugar

Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Malt sugar was a common sweetener in ancient China.
FERMENTATION--The total conversion of malt sugars to beer, defined here as three parts, adaptation, primary, and secondary.
The topics include food storage in prehistoric Europe, creating a history of experimental archeology, making fermentable malt sugars from the grain and some of the evidence for this activity in the British Neolithic, experiments in Beaker construction technologies, and the luminescence dating of medieval brick from Essex as an example of the physical sciences addressing archaeological questions.
TEN-THOUSAND years of agriculture may be founded on a neolithic version of Horlicks, if new research - supporting the theory that the first grain crops were grown, not to make bread, but primarily to produce malt and malt sugars - is proved right.