Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
1,518,851,376 visitors served.
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

maltose
(redirected from malt sugar)

   Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.07 sec.
maltose (môl`tōs) or malt sugar, crystalline disaccharide (see carbohydrate carbohydrate, any member of a large class of chemical compounds that includes sugars, starches, cellulose, and related compounds. These compounds are produced naturally by green plants from carbon dioxide and water (see photosynthesis ).
..... Click the link for more information.
). It has the same empirical formula (C12H22O11) as sucrose and lactose but differs from both in structure (see isomer isomer (ī`səmər), in chemistry, one of two or more compounds having the same molecular formula but different structures
..... Click the link for more information.
). Maltose is produced from starch by hydrolysis in the presence of diastase, an enzyme enzyme, biological catalyst . The term enzyme comes from zymosis, the Greek word for fermentation , a process accomplished by yeast cells and long known to the brewing industry, which occupied the attention of many 19th-century chemists.
..... Click the link for more information.
 present in malt. Maltose is hydrolyzed to glucose glucose, dextrose, or grape sugar, monosaccharide sugar with the empirical formula C6H12O6 .
..... Click the link for more information.
 by maltase, an enzyme present in yeast; the glucose thus formed may be fermented by another enzyme in yeast to produce ethanol ethanol (ĕth`ənōl') or ethyl alcohol, CH3CH2
..... Click the link for more information.
. Maltose is important in the brewing of beer. It is an easily digested food.
maltose
a disaccharide of glucose formed by the enzymic hydrolysis of starch: used in bacteriological culture media and as a nutrient in infant feeding. Formula: C12H22O11

Maltose

An oligosaccharide, known as malt sugar, a reducing disaccharide (see illustration). It is fermentable by yeast in the presence of d -glucose.

Formula for maltose (α form; * indicates reducing group)enlarge picture
Formula for maltose (α form; * indicates reducing group)

The action of animal (salivary and pancreatic) as well as plant (germinating cereals, sweet potato) amylases on starch, dextrin, and glycogen produces maltose as the main end product. Maltose is hydrolyzed by acids and the enzyme maltase to two molecules of d -glucose. See Glucose, Maltase, Oligosaccharide



?Page tools
Printer friendly
Cite / link
Email
Feedback
? Mentioned in ? References in periodicals archive
 
At this point, some Peking duck recipes advise coating the duck skin with maltose to give it an amber color, or rubbing the skin with one part malt sugar to six parts water; then the duck is allowed to dry again for a short period.
 
Encyclopedia browser? ? Full browser
 
 
Encyclopedia
?

Disclaimer | Privacy policy | Feedback | Copyright © 2009 Farlex, Inc.
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Terms of Use.