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What is lactic acid and how is it produced?
Lactic acid is an organic acid naturally formed during the fermentation of carbohydrates. In industrial production, it is typically obtained through the controlled fermentation of sugars derived from corn, sugar beet, or sugarcane. It is widely used in food, pharmaceutical, cosmetic, and industrial applications.
What are the main applications of lactic acid?
Lactic acid is primarily used as an acidity regulator, preservative, and pH stabilizer in the food industry (E270). It is also applied in cosmetics (for exfoliation and pH control), pharmaceuticals, animal nutrition, and as a raw material for producing biodegradable plastics such as PLA (polylactic acid).
Is lactic acid safe for food use?
Yes. Lactic acid (E270) is approved for use in food products worldwide and is considered safe when used according to regulatory guidelines. It occurs naturally in many fermented foods such as yogurt, pickles, and sourdough bread.
What is the difference between food-grade and technical-grade lactic acid?
Food-grade lactic acid meets strict purity and safety standards for use in food and beverage applications. Technical-grade lactic acid is typically used in industrial processes, cleaning products, or biodegradable material production, where food safety certification is not required.
