Food Grade Liquid α-Acetolactate Decarboxylase for Diacetyl Reduction in Yeast-Fermented Products 
Catalog Number IE-1326
Physical Form Liquid
Color Light yellow
Dosage Parameters 5-500 g/T DS
Source Microorganism
| Summary | Alpha-Acetolactate Decarboxylase can speed up the transformation of α-acetolactate into acetoin efficiently, avoiding the formation of diketone, an off flavor in beer or yeast-fermented products, and can be used to reduce maturation or improve taste. |
| Description | Alpha-Acetolactate Decarboxylase is synthesized through submerged fermentation of Bacillus subtilis, followed by subsequent purification and formulation. It finds extensive application in food processing industries. Diacetyl, derived from the oxidative decomposition of α-acetolactate, acts as an intermediate in yeast amino acid biosynthesis, notably for valine and isoleucine. This decomposition naturally occurs at a slow rate in yeast. The enzyme Alpha-Acetolactate Decarboxylase accelerates the conversion of α-acetolactate to acetoin, thereby preventing the formation of diketone, a compound responsible for undesirable flavors in beer. As a result, this process significantly reduces both diacetyl levels and diacetyl reduction time, consequently shortening the beer maturation period. |
| Advantages | For fast diacetyl reduction in beer or other yeast-fermented products |
| Application | For fast diacetyl reduction in beer or other yeast-fermented products |
| Application Area |
Brewing Portable alcohol |
| Application Recommendation | The recommended dosage is 5-500 g/T DS. 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. |
| Dosage Parameters | 5-500 g/T DS |
| Effective Temp | 4°C-70°C |
| Effective pH | 3.0-7.5 |
| Source | Microorganism |
| Physical Form | Liquid |
| Color | Light yellow |
| Scope of Shipment | Worldwide |
| Product Strain | Bacillus subtilis |
| Package | 25 kg/Jerry can |
| 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. |
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