Acid protease enzyme Sunson PRA100L

PRODUCT DESCRIPTION

Acid Protease PRA100L is produced by submerged fermentation of Aspergillus niger followed by purification and formulation. The enzyme catalyzes the hydrolysis of protein under acid condition. In alcohol fermentation industry the product will liberate more amino nitrogen and improve ethanol yield by boosting yeast’s growth, bringing economic benefits. 

MECHANISM

The acid protease is capable of breaking down peptide bonds in proteins  in raw materials, liberating short peptides and even amino acids that are necessary for yeast’s growth. In this way ethanol yield is increased, while making the best use of raw materials and saving cost for supplementation of yeast nutrients. 

REACTION PARAMETERS 

PARAMETERS

RANGE

Activity Temperature

30℃-60℃

Optimum Temperature

40℃-50℃

Activity pH

2.5-6.0

Optimum pH

2.5-3.5

  PRODUCT SPECIFICATION

Items

Description

Declared Activity*

100,000u/ml

Physical Form

Liquid

Color**

Brown

Odour

Normal microbial fermentation odour.

*Definition of Unit: 1 unit of Acid Protease equals to the amount of enzyme, which hydrolyzes casein to get 1μg of tyrosine at 40 and pH3.0 in 1 min.

** Color: Color can vary from batch to batch. Color intensity is not an indication of enzyme activity.

PRODUCT STANDARD

The product complies with GB1886.174.

No.

ITEMS

INDEX

1

Bulk density/(g/ml)

1.05-1.20

2

pH/(25)

3.55.5

3

Lead/(mg/kg)

5.0

4

Arsenic/(mg/kg)

3.0

5

Total viable count/(CFU/mL)

50000

6

Coliform Bacteria/(CFU/mL)

30

7

Escherichia coli

(CFU/mL)

10

(MPN/mL)

3.0

8

Salmonella/(25mL)

Not Detected

APPLICATION RECOMMENDATION

The recommended dosage is 0.05-3kg of the enzyme preparation per ton of total raw materials. The dosage has to be optimized based on each application, the raw material specifications, product expectation and processing parameters. It is better to begin the test with the convenient volume.

SAFE HANDLING PRECAUTIONS

Enzyme preparations are proteins that may induce sensitization and cause allergic type of symptoms in susceptible individuals. Prolonged contact may cause minor irritation for skin, eyes or nasal mucosa. Any direct contact with human body should be avoided. If irritation or allergic response for skin or eyes develops, please consult a doctor.

WARNINGS

Keep sealed after use every time to avoid microbial infections and inactivation of enzymes until its finish.

PACKAGE AND STORAGE

Ø  Package 25kgs/drum; 1,125kgs/drum.

Ø  Storage Keep sealed in a dry and cool place and avoid direct sunlight. Slight sedimentation is acceptable since it will not impact performance of the product.

Ø  Shelf life:  12 months in a dry and cool place.

 

 

 

E-mail:
sunson@chinaenzymes.com
Tel:86-20-86586087
      86-10-58246891
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      86-10-58246862
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