Potassium lactate explained

Potassium lactate is a compound with formula KC₃H₅O₃. It is the potassium salt of lactic acid and appears as a clear, hygroscopic, syrupy liquid suspension that is typically 60% solids.^[1] The substance can be concentrated to contain up to 78% solids.^[2] It is produced by neutralizing lactic acid, which is fermented from a sugar source. It has E number E326.

Uses

Culinary uses

Potassium lactate is commonly used in meat and poultry products to extend shelf life and increase food safety, as it has a broad antimicrobial action and is effective at inhibiting most spoilage and pathogenic bacteria.^[3]

Fire fighting uses

Potassium lactate is used as an extinguishing medium in First Alert Tundra fire extinguishers.^[4]

Notes and References

1. Web site: 17 February 2015 . Lactic Acid, Sodium Lactate, and Potassium Lactate Handling/Processing . 5 December 2023 . USDA Agricultural Marketing Service.
2. PURASAL http://www.purac.com/EN/Food/Brands/Potassium_lactate.aspx
3. Meat and Poultry. http://www.purac.com/EN/Food/ingredients/Meat_poultry_and_fish.aspx
4. MSDS for First Alert Tundra (MSDS 06-1753A), http://www.firstalert.com/site_content/85-home/952-tundra-fire-extinguishing-spray#downloads