sucrase

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sucrase

 [soo´krās]
a digestive enzyme secreted in the intestine that catalyzes the hydrolysis of sucrose and maltose to produce glucose and fructose.

su·crose α-d-glu·co·si·dase

(sū'krōs glū'kō-hī'drō-lās),
An enzyme catalyzing the hydrolysis of sucrose and maltose. The enzyme isolated from the intestinal mucosa will also act on isomaltose (that is, it contains a subunit that acts on isomaltose separately). A deficiency of this enzyme results in defective digestion of sucrose and linear α 1,4-glucans
Synonym(s): sucrase

sucrase

/su·crase/ (soo´krās) a hydrolase that catalyzes the cleavage of the disaccharides sucrose and maltose to their component monosaccharides; it occurs complexed with α-dextrinase in the brush border of the intestinal mucosa and deficiency of the complex causes the disaccharide intolerance sucrase-isomaltase deficiency.

sucrase

(so͞o′krās′, -krāz′)
n.

su·crose al·pha-d-glu·co·hy·dro·lase

(sū'krōs al'fă glū'kō-hī'drō-lās)
An enzyme hydrolyzing sucrose and maltose in a complex with isomaltase; hence, hydrolyzes both sucrose and isomaltose; found in the intestinal mucosa; a deficiency of this enzyme results in defective digestion of sucrose and linear α1,4-glucans.
Synonym(s): sucrase.

sucrase

or

invertase

an enzyme that catalyses the hydrolysis of SUCROSE into GLUCOSE and FRUCTOSE. Sucrase is contained in the SUCCUS ENTERICUS.

sucrase

an intestinal enzyme that hydrolyzes sucrose. It is not present in newborn animals so that they are unable to digest sucrose and feeding of the sugar will cause severe, osmotic diarrhea. Sucrase activity in the intestine increases as the need for, and secretion of, lactase decreases with age.