Glycoside hydrolases are enzymes that catalyze the hydrolysis of glycosidic bonds in carbohydrates. They play a crucial role in breaking down complex sugars into simpler sugars, which can be utilized by organisms for energy and metabolism. These enzymes are found in various organisms, including bacteria, fungi, and plants, and are essential for processes like digestion and biomass degradation. These enzymes are classified into different families based on their structure and mechanism of action. Glycoside hydrolases are important in various industries, including food, biofuel, and pharmaceuticals, as they help in the processing of carbohydrates and the production of valuable sugars.