sidrunhappe

Sidrunhappe, commonly known as citric acid, is a weak organic acid with the chemical formula C6H8O7. It is a naturally occurring chemical found in citrus fruits such as lemons, limes, and oranges, where it plays a role in their sour taste. In its pure form, sidrunhappe is a white crystalline solid. It is soluble in water and can act as an antioxidant and a chelating agent, meaning it can bind to metal ions.

Sidrunhappe is widely used in the food and beverage industry as an acidulant, flavor enhancer, and preservative. It is commonly found in candies, jams, soft drinks, and processed foods to impart a tart flavor and to extend shelf life by inhibiting microbial growth. Its ability to bind to metal ions also helps prevent spoilage caused by oxidation. Beyond food, sidrunhappe has applications in pharmaceuticals, cosmetics, and cleaning products. In medicine, it is used in effervescent tablets and as an anticoagulant. In cosmetics, it can be found in skincare products for exfoliation. In household cleaners, it is effective at removing limescale and soap scum. The industrial production of sidrunhappe primarily involves the fermentation of carbohydrates by specific microorganisms, most notably Aspergillus niger. This biotechnological process allows for large-scale and cost-effective synthesis of the acid for its diverse commercial uses.