Alkaline Protease

  • Alkaline Protease
Alkaline Protease
  • Starzyme
  • China LiaoNing
  • Within Two weeks afterreceivedthe order
  • 150 Tons Permonth

1. Alkaline Protease appearance: light brownish powder with less than 8% of water content.
2. Alkaline Protease activity: 200,000 U/g
3. The Alkaline Protease enzyme activity can be maintained at least 85% when stored for 6 months.

The alkaline protease is prepared by deep liquid fermentation of Bacillus licheniformis. It can hydrolyze macromolecular protein to produce polypeptides or free amino acids.


1. Appearance: light brownish powder with less than 8% of water content.

2. Activity: 200,000 U/g

3. Temperature: 40-50°C

4. pH: 7.0-12

Definition of the unit of the enzyme activity: One unit (U/g) is defined as the amount of enzyme needed to hydrolyze casein to produce 1 μg of tyrosine measured as the absorbance value in furin reagent chromogenic reaction in sodium borate - sodium hydroxide buffer (pH 10.5) at 40°C in 1 min (total reaction time is 10 min) (QB/T1803-1993).


1. The alkaline protease is a non-toxic protein with no side effects, which belongs to the serine endopeptidase. In food industry, it can be used to hydrolyze protein to produce peptides or amino acids which can form protein lysate with a unique flavor.

2. The alkaline protease can be added in ordinary and concentrated detergent powder and liquid detergent, which can effectively remove blood stains, eggs, dairy products, or gravy, juice and other protein stains. It also can be used as medical washing reagent to clean biochemical instruments.

3. The alkaline protease can be used for silk degumming: pretreatment – dehydration – treatment with acid – (treatment with protease at 18-24U/ml, 0.75% of soap at 48-50 ⁰C for 30-60 min, PH 7-8) – dehydration – peeling off the skin – rinse – dehydration – fluffing - drying - fluffing.

4. The alkaline protease can also be used for leather depilation: raw leather - washing – degreasing – alkaline expansion – dehairing – splitting – dealkalization – enzymatic dehairing – washing - pickling – tanning.

Specification: 20 kg/bag


Store in dry and cool (below 25°C) area with ventilation. During transportation, avoid direct exposure to strong sunlight, rain and moisture. The enzymes will lose activity at high temperature or under strong sunlight. The enzyme activity can be maintained at least 85% when stored for 6 months. The alkaline protease can be stored for long period at 5°C. It is corrosive to skin and direct contacting with skin and eyes should be avoided.

Alkaline protease enzyme

Analysis on the current pain points of the industry

1. False mark of enzyme activity

The product is marked with 100,000 enzyme activities, and the actual enzyme activity is 60,000, resulting in incomplete hydrolysis and indirectly increasing the cost of enzymes.

2. Product is unstable

Lack of enzyme protection technology and quality control, unstable enzyme activity, and differences in product specifications for each batch, resulting in product quality fluctuations.

3. Long production cycle

No enzymatic hydrolysis experience and enzyme compounding technology increase labor cost and R&D cycle, which indirectly affects the production schedule.

For us, our major is to solve these pain points

1. The enzyme activity can be customized, providing different enzyme activity products and solutions

2. Stable enzyme activity, unique enzyme activity protection technology to reduce fluctuations in production quality

3. Enzyme activity is not false, strict quality control links, third-party testing to reduce enzyme costs

Quality control strength
6 key control point inspections, escorting the whole process of quality, using extraction, membrane separation, vacuum freeze-drying, spray drying and enzyme activity protection technologies to produce products that fully meet the requirements of global customers.

Alkaline Protease

Production capacity

  Eight automatic primary fermentation cylinders (60 m³),

  2 pure culture tanks (10 m³),      2 pure culture tanks (5 m³), 

       4 pure culture tank (4 m³),         2 pure culture tanks (1 m³),

  4 pure culture tanks (0.3 m³),     1 large air compressors,

  1 spray/drying tower (1 ton/h),

  4 air drying and fluidized bed drying equipment

  1 production line of ultra concentrate liquid enzyme.

  The annual production capacity of the Starzyme is more than 20,000 tons of liquid, powd

Alkaline protease enzyme

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