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Alkaline Protease

Alkaline Protease JP-20

Alkaline protease for leather hair removal and silk degumming, enables simplified process, shortened processing cycle, improved quality of finished products, increased leather yields and reduced production costs.



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Product Specifications

DESCRIPTION

Alkaline protease JP-20 is a powder form preparation produced from Bacillus licheniformis through submerged fermentation, extraction and refining process. JP-20 can  catalyze the hydrolysis of proteins under alkaline conditions (pH 9-12). It is suitable for leather hair removal and silk degumming.

 

PRODUCT CHARACTERISTICS 

Declared Enzyme:

Protease

Systematic Name:

EC 3.4.21.62

Appearance:

Pale brown powder   

Activity:

200,000 U/g(Minimum)  

Moisture:

8% (Maximum)

 

EFFECT OF Temperature

The effective temperature range for JP-20 is from 20 to 65℃, and the optimal temperature ranges from 40 to 50℃.

 

EFFECT OF PH

JP-20 has an effective pH from 9 to 12, and the optimal pH ranges from 10 to 11.       

 

APPLICATIONS AND BENEFITS

The use of JP-20 in leather processing enables the following benefits:

 Simplified process

 Shortened processing cycle

 Improved quality of finished products

 Increased leather yields

 Reduced production costs

Process

Dosage Rate

(%)

Temperature

(℃)

pH

Time

(hours)

Soaking

0.012~0.5

20~25

9~11

12~20

Hair Removal

0.05~0.15

20~35

9~11

12~20

Softening

0.025~0.1

35~38

9~11

3~6

 Note: The above recommended dosage is based on raw material mass for leather processing.

 

The use of JP-20 in silk degumming enables the following benefits:

 Effectively removal of silk sericin without damage to the fibroin

 Enable silk fleeciness and lustrous, soft and smooth surface

Process

Dosage Rate

(%)

Temperature

(℃)

pH

Time

(hours)

Degumming

(after pre-treatment)

0.38~1.25

40~50

9~11

30~60

Note: The above recommended dosage rate is based on the mass of raw material for silk degumming.

 

 

PACKAGING

JP-20 is packaged in 25kg cardboard drums or kraft paper bags. Customized packaging is available upon request.

 

 

STORAGE

This enzyme has been formulated for optimal stability. Typical shelf-life is six months provided it is stored below 25°C (77°F) in its original packaging, sealed and unopened, protected from the sunlight. Its shelf-life will be eighteen months if it is stored properly at 0~10°C(32~50°F).  Prolonged storage and/or adverse conditions such as higher temperatures may lead to a higher dosage requirement.

 

SAFETY & ENZYME HANDLING

Inhalation of enzyme dust and mists should be avoided. In case of contact with skins or eyes, promptly rinse with water for at least 15 minutes. For detailed handling information, please refer to the Safety Data Sheet.

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