Protease ST-4L is an alkaline liquid protease for use in biological detergent products (both laundry and dishwashing). The product acts by hydrolyzing insoluble protein soiling into soluble peptides and amino acids which can then be readily removed from clothing fabric or dishes. Protease ST-4L is particularly effective at removing common household soiling such as blood, grass, milk, gravy and blood.
Protease ST-4L is a particularly high strength enzyme derived from a genetically modified strain of Bacillus subtilis, and works in conjunction with the other laundry and dishwashing chemicals to remove most protein based stains under a broad range of conditions.
Activity minimum 38,000 GSU/g
Appearance – brown liquid
Bulk density 1.2g/ml
Protease ST-4L is available in bulk and in 200Kg or 25Kg jerry cans
Protease ST-4L has excellent long-term storage properties. To maintain optimum activity, store at moderate temperatures (below 25 deg C), in the original containers and with the lid closed.
Inhalation of aerosols from liquid enzymes should be avoided. Open in a well-ventilated environment. In case of accidental spillage or contact with skin/eyes, promptly rinse with water for at least 15 minutes. For more detailed information please refer to the Material Safety Data Sheet for this product
Protease ST-4L is active over a broad range of pH values from 7 – 12, with an optimum of pH 10. The enzyme is also active over a broad temperature range from 25 degrees C to 60 degrees C, with an optimum performance at 40 degrees C.