Well 'lactose' is the name of the sugar found in milk.The other names are: milk sugarand officially (IUPAC): β-D-galactopyranosyl-(1->4)-D-glucose
Lactose is a disaccharide that consists of β-D-galactose and β-D-glucose fragments bonded through a β1-4 glycosidic linkage. It's also a solid by the way.
lactose, Chocolate
The equation for the formation of alpha-D-lactose from beta-D-galactose and alpha-D-glucose involves the transfer of galactosyl group from beta-D-galactose to alpha-D-glucose, forming a glycosidic bond between the C1 of glucose and the C4 of galactose. This reaction is catalyzed by the enzyme lactose synthase.
Lactose-free varieties of milk provide the same nutrients as regular milk. The nutrients in an 8-oz. glass of nonfat, lactose-free milk include 8.3 g of protein; 12.5 g of sugars; 0.2 g of fat; 5 mg of cholesterol; 300 mg of calcium; 250 mg of phosphorus; 380 mg of potassium; 27 mg of magnesium; 150 micrograms of vitamin A; and 2.9 micrograms of vitamin D. The vitamin D, calcium, phosphorus and magnesium in lactose-free milk help support your bone health.
A) Bacteria in yogurt produce lactase B) The lactose content of yogurt is about one-half that of milk C) Yogurt is poorly tolerated in lactose-intolerant people D) There are only trace amounts of lactose present in yogurt
Lactase catalyzes the hydrolysis of lactose, a disaccharide found in milk, into its constituent monosaccharides, glucose and galactose. This enzymatic reaction allows for the digestion and absorption of lactose in the small intestine.
Insufficient lactose typically refers to a deficiency in the enzyme lactase, which is necessary for digesting lactose, the sugar found in milk and dairy products. This can lead to lactose intolerance, resulting in symptoms such as bloating, gas, diarrhea, and abdominal pain after consuming lactose-containing foods. Additionally, individuals with lactose intolerance may miss out on essential nutrients found in dairy, such as calcium and vitamin D, if they do not find suitable alternatives.
Lactose is classified as a disaccharide, which means it is made up of two sugar molecules (glucose and galactose) joined together. It is commonly found in dairy products and is a primary source of carbohydrate in milk.
Lactose, a disaccharide sugar composed of glucose and galactose, has a ring structure that forms through a glycosidic bond. In its cyclic form, lactose exists primarily as a β-D-galactopyranosyl-(1→4)-D-glucopyranose. The glucose and galactose units each adopt a six-membered pyranose ring configuration, where the anomeric carbon of galactose is linked to the fourth carbon of glucose, creating the characteristic ring structure of lactose.
Foods that contain lactose. You may not need to completely avoid foods and beverages that contain lactose —such as milk or milk products. If you avoid all milk and milk products, you may get less calcium and vitamin D than you need. People with lactose intolerance can handle different amounts of lactose.
Lactose in the diet