milky water
Two monosaccharides can form a disaccharide through a condensation reaction, where a molecule of water is released. Examples of disaccharides include sucrose (glucose + fructose), lactose (glucose + galactose), and maltose (glucose + glucose).
Lactose plus water will form a solution in which the lactose dissolves. This is a physical change and does not involve a chemical reaction between lactose and water.
a monosaccharide formed when lactose is hydrolyzed into glucose and galactose. Galactose (Gal) is a type of sugar which is less sweet than glucose. It is considered a nutritive sweetener because it has food energy. Galactan is a polymer of the sugar galactose. It is found in hemicellulose and can be converted to galactose by hydrolysis. Galactose solubility in water is 68.30 grams per 100 grams of water at 20-25°C.
The decomposition of any nutrient is called hydrolysis, in which a molecule of water is broken and "caps" the ends of the two monomers. The opposite of hydrolysis is called a condensation (or dehydration) reaction.
Three examples of monosaccharide are glucose, fructose, and galactose. Three other types of monosaccharide are ribose, maltose, and xylose.
Condensation
The conversion of lactose to glucose is a hydrolytic reaction because it involves breaking a bond in lactose using a water molecule. This results in the separation of lactose into its constituent parts, glucose and galactose, through the addition of a water molecule in the process.
The principle behind lactose extraction from milk is enzymatic hydrolysis. The enzyme lactase is added to milk, which breaks down lactose into its constituent sugars, glucose and galactose. The chemical reaction can be represented as: Lactose + Water → Glucose + Galactose
Lactase catalyzes the hydrolysis of lactose into glucose and galactose. This process can be represented by the following word equation: Lactose + Water → Glucose + Galactose.
Condensation
The dehydration synthesis equation for lactose is: glucose + galactose -> lactose + water. The dehydration synthesis equation for melibiose is: glucose + galactose -> melibiose + water.
Lactase breaks down lactose through hydrolysis, which is a chemical reaction that involves the breaking of a bond by water. In this process, lactase enzyme catalyzes the reaction that breaks lactose into its two components, glucose and galactose.
Two monosaccharides can form a disaccharide through a condensation reaction, where a molecule of water is released. Examples of disaccharides include sucrose (glucose + fructose), lactose (glucose + galactose), and maltose (glucose + glucose).
In the process of water breaking apart the lactose molecule, water molecules (H2O) interact with the lactose molecule which is made up of glucose and galactose. The water molecule breaks the glycosidic bond between glucose and galactose by adding a hydroxyl group to one sugar and a hydrogen ion to the other, resulting in the formation of two separate sugar molecules.
Lactose plus water will form a solution in which the lactose dissolves. This is a physical change and does not involve a chemical reaction between lactose and water.
Monsaccharides are a simple for a sugar and can have a sweet taste. They are usually colorless and water-soluble. Monosaccharide includes glucose and galactose. Lactose is made from both of those at its simplest forms.
A disaccharide is the carbohydrate formed when two monosaccharides undergo a condensation reaction which involves the elimination of a small molecule, such as water, from the functional groups. Like monosaccharides, disaccharides form an aqueous solution when dissolved in water. Three common examples are sucrose, lactose, and maltose. Sucrose is made by bonding a glucose molecule and a fructose molecule together, lactose (milk sugar) made from a glucose and a galactose.