Description

Diacetyl Reductase Lk is a highly purified enzyme preparation, specifically an oxidoreductase, that catalyzes the reduction of diacetyl (2,3-butanedione) to acetoin. This biocatalytic action is critical for controlling flavor profiles and ensuring product stability in fermentation-based processes. It is an essential processing aid for manufacturers in the food, beverage, and biotechnology sectors seeking to eliminate undesirable buttery off-flavors and guarantee consistent, high-quality end products.

Application

• Dairy & Beverage Processing: Primary use for the removal of diacetyl to prevent off-flavors in beer, wine, and dairy products like yogurt and butter.
• Flavor Modification & Control: Used to fine-tune and standardize flavor profiles in fermented food and drink production.
• Biocatalysis & Synthesis: Employed in organic synthesis pathways for the stereoselective production of chiral intermediates, such as acetoin and 2,3-butanediol.
• Diagnostic & Analytical Kits: Serves as a key component in enzymatic assay kits for the detection and quantification of diacetyl or related compounds.
• Research & Development: Utilized in biochemical research to study reductase enzyme mechanisms and metabolic pathways involving diketones.

Basic Information

Product Name	Diacetyl Reductase Lk
CAS No.	9028-49-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Diacetyl reductase; Acetoin dehydrogenase; Diacetyl (acetoin) reductase; 2,3-Butanedione reductase; NADH-dependent diacetyl reductase; EC 1.1.1.5; Butanedione reductase; α-diketone reductase
EINECS	Contact for details

Quality Control

Our Diacetyl Reductase Lk is produced and tested under strict quality management systems. Each batch is characterized for critical parameters including specific activity, protein content, and purity to ensure consistent enzymatic performance and lot-to-lot reproducibility. A comprehensive Certificate of Analysis (COA) detailing purity, activity units, and stability data is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. For long-term stability, store at -20°C or below. This product is hygroscopic (moisture-sensitive); allow the vial to equilibrate to room temperature in a desiccator before opening to prevent condensation and moisture uptake.

Specification

Item	Specification
Appearance	Lyophilized powder or solution
Identification (IR)	Conforms
Specific Activity	≥ [Value] units/mg protein
Protein Content (Biuret)	≥ [Value] %
Purity (SDS-PAGE)	≥ [Value] %
pH (in solution)	6.0 - 8.0
Loss on Drying	≤ [Value] %
Microbial Limits	Meets specified criteria

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.