Cost Effective Brewing Enzymes Acid Protease AP - 520 Low PH Application Condition

Basic Information
Place of Origin: Jiangsu, China
Brand Name: Boli
Certification: Halal, Kosher ISO9001, ISO14001, ISO22000
Model Number: Acid Protease AP-520
Minimum Order Quantity: 400kg
Price: Negotiable
Packaging Details: 25kg, 30kg plastic drums or 1125kg IBC totes
Delivery Time: 15-20 Days
Payment Terms: T/T, L/C , D/P
Supply Ability: 1000MT to 1500MT Per Year
Detail Information
Activity: 100,000 U/ml (minimum) Certificate: Halal, Kosher
Application: Enzyme For Alcohol And Brewing Substrate: Aspergillus Niger
Appearance: Black Brown Liquid Application Condition: Low PH Conditions
High Light:

beta glucanase brewing


alpha and beta amylase brewing

Product Description


Acid Protease AP-520


Activity: 100,000 U/ml 
Appearance: Black brown Liquid
Specific gravity:1.15 ~ 1.25 g/ml
Product pH:3.5 ~ 6.0





  • Acid Protease AP-520 is an ideal cost-effective protease that can promote yeast growth, maximize fermentation and give higher alcohol yields. It is a food grade acid protease enzyme produced from Aspergillus niger using submerged fermentation, extraction, and refining techniques. AP-520 can effectively hydrolyze proteins under acidic conditions.
  • AP-520 can be used in the production of potable alcohol, food and beverage where protein hydrolysis is needed under low pH conditions.




  • The effective pH range for the activity of AP-520 is approximately 2.0 to 6.0, with an optimum performance at pH 2.5 to 4.0.
  • The activity of AP-520 is effective in the range from 30°C to 65°C, with an optimum performance obtained at 30°C to 50°C.
  • The exact temperature optimum will be influenced by several process variables including time, pH, and substrate nature andsubstrate concentration.
  • AP-520 is activated by Mn2+, Ca2+ and Mg2+ ions. Heavy metal ions such as Cu2+, Hg2+ and Al3+ will inhibitthe enzyme activity of AP-520.



  • In intermittent fermentations, the entire dose of AP-520 should be added all at once after the fermentation tank is filled approximately 30%.
  • In continuous fermentations, AP-520 should be added continually, with the dosage rate dependent on the amount of mash fed at the inlet of the fermentation tank.


Cost Effective Brewing Enzymes Acid Protease AP - 520 Low PH Application Condition 0



  • The typical dosage rate for AP-520 is 0.01% to 0.02% w/w (dry solids basis) and this dosage level is recommended as a starting point for optimizing the enzyme dosage.
  • The optimum enzyme dosage will be dependent on both the raw materials used (substrate nature and concentration) and the processing conditions.


Certificate: Halal, Kosher
Package: 25kg, 30kg plastic drums or 1125kg IBC totes
Shelf-life and Storage:

Typical shelf-life is six months if this product is stored at 0∼ 10°C.


Sotored in its original packaging, sealed and unopened, protected from the sunlight.


Prolonged storage and/or adverse conditions such as higher temperatures may lead to a higher dosage requirement, thus should be avoided.


Contact Details

Phone Number : +8615152213005