What is the difference between lactose and maltose

This mixture is referred to as invert sugar because it rotates plane-polarized light in the opposite direction than sucrose. The hydrolysis reaction has several practical applications. Sucrose readily recrystallizes from a solution, but invert sugar has a much greater tendency to remain in solution. In the manufacture of jelly and candy and in the canning of fruit, the recrystallization of sugar is undesirable. Therefore, conditions leading to the hydrolysis of sucrose are employed in these processes.

Moreover, because fructose is sweeter than sucrose, the hydrolysis adds to the sweetening effect. Bees carry out this reaction when they make honey. The average American consumes more than lb of sucrose every year. About two-thirds of this amount is ingested in soft drinks, presweetened cereals, and other highly processed foods. The widespread use of sucrose is a contributing factor to obesity and tooth decay. It is a reducing sugar that is found in sprouting grain.

It is a reducing sugar that is found in milk. It is a nonreducing sugar that is found in sugar cane and sugar beets. Identify each disaccharide in Exercise 3 as a reducing or nonreducing sugar.

If it is a reducing sugar, draw its structure and circle the anomeric carbon. Identify each disaccharide in Exercise 4 as a reducing or nonreducing sugar. Learning Objectives Identify the structures of sucrose, lactose, and maltose.

Identify the monosaccharides that are needed to form sucrose, lactose, and maltose. Maltose Maltose occurs to a limited extent in sprouting grain. Lactose Lactose is known as milk sugar because it occurs in the milk of humans, cows, and other mammals. Sucrose Sucrose, probably the largest-selling pure organic compound in the world, is known as beet sugar , cane sugar , table sugar , or simply sugar. Concept Review Exercise What monosaccharides are obtained by the hydrolysis of each disaccharide?

Exercises Identify each sugar by its common chemical name. Identify each sugar by its common chemical name. Melibiose is a disaccharide that occurs in some plant juices. Its structure is as follows:. Draw the structure of cellobiose. It is a readily digestible source of glucose which is capable of providing energy for the neonate. In case the body is not able to digest significant amounts of lactose, the condition is termed as lactose intolerance.

It is not commonly found in food items. However, it can be formed from the digestion of starch. The chemical formula of Maltose is C 12 H 22 O It can be found in germinating grain, in small proportion in corn syrup, etc.

Sucrose table sugar, saccharose is made from the combination of glucose and fructose units. It generally includes the alpha form of D-glucose and the beta form of D-fructose. The formula of table sugar is C12H22O It is a type of sugar which is commonly found in plants. Glucose and Fructose are monosaccharides, whereas Lactose, Maltose and Sucrose are disaccharides.

Glucose is classified as an aldehyde, whereas fructose as a ketone. Two glucose units are combined to form Maltose. Sucrose is formed by combination of Fructose and glucose. Lactose consists of Galactose and Glucose. It is a simple monosaccharide. It is regarded to be the most common carbohydrate which is required by the cells of the body for energy.

Sucrase-isomaltase deficiency is much rarer, notes the Genetics Home Reference; it occurs in about 0. Nutrition Nutrition Basics Vitamins and Supplements. Maltose Vs. Lactose By Kirstin Hendrickson. Kirstin Hendrickson. Kirstin Hendrickson is a writer, teacher, coach, athlete and author of the textbook "Chemistry In The World. She has a Bachelor of Science in zoology, a Bachelor of Science in psychology, a Master of Science in chemistry and a doctoral degree in bioorganic chemistry.

A glass of milk on the table. Video of the Day. Digestion and Absorption.