The duodenum
First part of the small intestine
Sucrase is synthesized in the small intestine by the brush border, and secreted by the tips of the villi epithelium, particularly in the duodenum
synthesized in the small intestine by the brush border, and secreted by the tips of the villi epithelium, particularly in the duodenum
sucrase
Small intestine
Salivary amylase in the mouth, and then maltase, sucrase and lactase in the small intestine.
Sucrase is a family of enzymes. Some of it is secreted from the salivary glands in the mouth but most of the sucrase activity is in the small intestines. In the intestines it is not secreted, but rather, contained in the wall.
A molecule of common table sugar, sucrose, can be hydrolyzed into its two main molecular components by the enzymatic action of sucrase. Following hydrolysis, the resulting fragments are fructose and glucose.
Maltase is an enzyme produced by the cells lining the small intestine.
The substrate would be sucrose. Normally a 5% sucrose solution.
Amylase, protease and lipase are secreted from the pancreas into the small intestine. Sucrose, maltase, lactase from the wall of the intestine are also used to complete digestion.
The optimum pH for sucrase is 2.0