Define the following terms:(i) Glycosidic linkage(ii) Invert sugar(iii) Oligo saccharides


Glycosidic Bond: A Glycosidic Bond is the same as a Glycosidic Linkage.
It is a kind of linkage generated by the loss of a water molecule between two monosaccharide units via an oxygen atom.
It is a form of covalent connection that connects a sugar (carbohydrate) molecule to any other group that is or is not a sugar.
A Glycoside is a chemical that has a Glycosidic Linkage.
Glycosides are secondary metabolites found in many plants.
Glycosidic linkages or bonds are typically unstable and susceptible to hydrolysis (by diluted acids or by enzymes).
As a result, the kinds of Glycosidic linkage are classified as follows:
O-glycosides
C-Glycosides
S-Glycosides
N-Glycosides
Invert Sugar: When sucrose is hydrolyzed, the sign of rotation changes from dextro (+) to laevo (-), and the result is known as invert sugar.
Breaking the connections between glucose and fructose produces invert sugar.
The last result is a solution that is half free glucose and half free fructose.
Hydrolysis—a chemical process involving water, heat, acids, or enzymes—then breaks those bonds.
Sucrose, Glucose, and Fructose are the three basic sugars.
Free Glucose and Fructose from Invert Sugar
It is widely used to enhance flavour and texture and extend shelf life in numerous culinary items such as baked goods, confections, fruit preserves, and drinks.
Oligosaccharides: Oligosaccharides are formed when 2 or more monosaccharides unite via O-glycosidic linkages.
Sucrose, maltose, and lactose are a few examples.
Certain enzymes are employed to form or catalyse glycosidic linkages in oligo saccharides, and each sugar must be unique to the enzyme utilised for each new glycosidic bond.
Oligosaccharides, which are found in legume seeds, are considered to be important flatus makers.
These saccharides are made up of one, two, or three galactose units linked together by -1,6 glycosidic connections.

Final Answer:

A glycosidic bond, also termed as a glycosidic linkage, is a form of covalent connection that connects one carbohydrate (sugar) molecule to another group that may or may not be another carbohydrate.
A combination of glucose and fructose derived from the hydrolysis of sucrose. It can be found naturally in fruits and honey, as well as chemically synthesised for use in the food industry.
An oligosaccharide is a saccharide polymer, contains a modest number of simple sugars (usually three to ten) (monosaccharides). Oligosaccharides can perform a variety of tasks, including cell recognition and binding. Glycolipids, for example, play a significant function in the immunological response.