Lipase

Lipase is a serine hydrolase enzyme capable of catalyzing the hydrolysis of fatty acid triglycerides, resulting in the production of glycerol and fatty acids. It exhibits its enzymatic activity primarily at the interface between oil and water. Lipase operates effectively within a relatively broad temperature range, typically displaying activity between 30°C and 70°C, with the optimal working temperature falling roughly between 58°C and (35°C). Notably, lipase demonstrates a high degree of pH adaptability, with an effective pH range spanning from 4.0 to 10.0, and the most favorable pH range typically ranging from 6.5 to 7.5. The enzyme's activity is influenced by various metal ions, with some, such as Ca²⁺ and Mg²⁺, exerting a stimulating effect, while certain anions like N³⁻, Cl⁻, and SO₄²⁻ serving as inhibitors. However, the impact of chelating agents like EDTA on the enzyme's activity is relatively minor. Lipase has widespread applications in diverse industries, including leather processing, animal feed production, papermaking, detergents, and the production of biofuels.

• Lipase in bakery plays a crucial role in strengthening the gluten network of dough, thereby enhancing dough stability and gas retention for superior-quality baked goods.
• Lipase in milk is a natural enzyme that breaks down fats, and its continued action after pasteurization can cause flavor defects in dairy products.
• Lipase in leather exhibits specific effects on animal hide fats, facilitating gentle and uniform softening, reducing chemical usage, and improving leather yield while minimizing defects and wrinkles.
• Lipase in animal feed optimizes the liberation of short-chain fatty acids, improving nutrient utilization and palatability, which in turn enhances feed digestion and absorption in livestock.
• Lipase in paper industry is key in mechanical pulping and waste paper deinking processes, removing glycerol triesters from pulp and increasing the efficiency of drinking, thus facilitating better paper reclamation.