Technical and cosmetic, food-grade lactic acid E270 - CAS 79-33-4

Lactic acid L(+) or 2-hydroxypropanoic acid is a natural alpha-hydroxy organic acid with the molecular formula C₃H₆O₃ found in many biochemical processes. Hydroxy acids are also known as fruit acids (AHA). It is a weak (pKa 3.9) and natural acid that is now recognized as a safer and more environmentally friendly ingredient.

First identified in milk and resulting from the degradation of lactose, this compound is also found in winel, certain fruits and vegetables as well as in our muscles (lactic accumulation: origin of cramps and muscle pain).

Produced in bulk, by fermentation of beet sugar in the form of the enantiomer (S)-lactic acid (or L(+)-lactic acid), this product can be used in numerous applications, such as:

Applications:

Chemical and detergent industries:

• pH agent, acidifier,
• Descaler,
• Biocide, antibacterial agent (bacteriostatic)

Food industry, food additive E270

• antioxidant, acidifier or flavor enhancer,
• preservative
• in the form of sodium salt (E325), potassium (E326) and calcium (E327)

Cosmetic industry:

• pH regulator, acidifier,
• Humectant, moisturizer,
• Skin conditioning agent, facilitates the removal of scales and dead skin (use in peeling)
• Adds shine to hair and promotes the elimination of dandruff.

Plastics industry and 3D Printing

• Precursor of biodegradable plastic, polylactic acid (PLA), for the manufacture of bags or food-contact plastic packaging, polymers used in biodegradable sutures in surgery.