甘油, also known as glycerol, is a colorless, odorless liquid that is sweet-tasting and viscous. It is a simple polyol compound, commonly used in food, pharmaceuticals, and cosmetics. In the food industry, it serves as a sweetener and humectant, helping to retain moisture in products. In addition to its uses in food and cosmetics, 甘油 is also important in the production of triglycerides, which are fats found in the body. It is used in the manufacture of soap and biofuels, making it a versatile compound in various industries.