LJSW-S100

DESCRIPTION

Acid Protease LJSW-S100 is produced from Aspergillus niger through submerged fermentation and extraction and refining technique. It can catalyze protein hydrolysis under acidic conditions and is applicable to hydrolysis of proteins with acidic medium.

PRODUCT CHARACTERISTICS

 Declared Enzyme: Acid Protease

 Systematic Name: EC 3.4.23.18

 Activity: 100,000 U/ml (minimum)

 Appearance: Light brown Liquid

Product pH 3.5～6.0

Specific gravity 1.15 to 1.25 g/ml

EFFECT OF PH

The effective pH of AP-520 is 2.0～6.0. The optimal pH for AP-520 is 2.5～3.5.

EFFECT OF TEMPERATURE

The effective temperature of LJSW-S100 is 30～65°C. The optimal temperature for LJSW-S100 is 40～50°C.

EFFECT OF METAL IONS

LJSW-S100 is activated by Mn2+, Ca2+ and Mg2+, and inhibited by Cu2+, Hg2+ and Al3+.

ADVANTAGES

Use of LJSW-S100 in fermentation process offers the following benefits:

Promote raw material particles dissolved

LJSW-S100 can hydrolyze the proteins of the raw materials, thus destroy the interstitial cell wall structure of starch granules, so as to release the starch wrapped in the granules, which is conducive to saccharification.

Promote the growth of yeast with reproduction

Free amino nitrogen (FAN) is the most effective nitrogen source for yeast. Adding LJSW-S100 during alcoholic fermentation can effectively hydrolyze proteins and peptides in the raw materials so as to generate FAN that yeasts can absorb, thus promote the growth of yeasts, increase the quantities of yeasts in the fermented mash, and shorten the fermentation cycle.

Beneficial to high concentration fermentation

In high concentration fermentation of alcohol, it is mainly nutritional deficiencies rather than the accumulation of alcohol that leads to the decrease of fermentation activity. Free amino acids (FAN) can not only shorten the fermentation cycle but also increase the output of alcohol, improve ethanol tolerance and survival rate of yeasts. Therefore, LJSW-S100 is the best nutrient for yeast growth and accelerator for fermentation.

APPLICATION GUIDELINES

In intermittent fermentation, it should be added at one time when the fermentation tank is filled with one third materials. In continuous fermentation, it should be added consecutively depending on the amount of saccharification mash fed at the inlet of fermentation tank.

DOSAGE RECOMMENDATION

Recommended dosage of LJSW-S100 is 0.001 to 0.015% w/w (dry solids basis). Actual dosage should be depending on the raw materials and process of production.

PACKAGING

LJSW-S100 is packaged in 25kg, 30kg plastic containers or 1125kg IBC totes. Customized packaging is available upon request.

STORAGE

LJSW-S100 has been formulated for optimal stability. Typical shelf-life is three months provided being stored below 25°C in its original packaging, sealed and unopened, protected from the sunlight. Its shelf-life will be six months if this product is stored properly at 0～10°C. 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 the skin or eyes, promptly rinse with water for at least 15 minutes. For detailed handling information, please refer to the appropriate Material Safety Data Sheet.