Proline-Specific Protease Accelerates Beer Brewing Stabilization
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Solution Overview
Problem
The conventional beer brewing process is lengthy and energy-intensive, particularly due to the stabilization phase, which requires significant time and resources, limiting the flexibility and increasing costs for breweries.
Innovation Solution
The use of a proline-specific protease to accelerate the beer brewing process by shortening the stabilization phase, allowing it to be completed in less than 7 days and potentially at higher temperatures, thereby reducing the overall brewing time and energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conventional stabilization phase is used to ensure beer clarity and stability, then beer quality is maintained, but the brewing time and energy consumption increase significantly
Solution Approach 1:
A proline-specific protease is introduced as an intermediary substance to catalyze the breakdown of haze-active proteins during stabilization. This enzyme mediates the interaction between polyphenols and proteins, accelerating aggregate formation and precipitation without requiring extended cold storage times, thus resolving the contradiction between maintaining clarity and reducing time
Solution Approach 2:
The invention changes the chemical parameter of the stabilization process by adding proteolytic activity specific to proline bonds. This biochemical parameter change accelerates the stabilization mechanism, allowing the process to reach completion in a shorter time while maintaining the same quality outcomes
2Reliability
If the conventional stabilization phase is used to ensure beer clarity and stability, then beer quality is maintained, but energy consumption increases
Solution Approach 1:
The proline-specific protease acts as a biochemical catalyst that reduces the energy barrier for protein hydrolysis and aggregate formation. By introducing this enzymatic intermediary, the system requires less thermal energy input to achieve the same stabilization effect, thereby reducing energy consumption while maintaining beer quality
Solution Approach 2:
The invention substitutes the purely physical stabilization mechanism (cold storage and gravitational settling) with a biochemical mechanism (enzymatic hydrolysis). This substitution replaces energy-intensive thermal and mechanical processes with a more efficient catalytic pathway, reducing overall energy requirements
3Productivity
If the stabilization phase is shortened to increase production flexibility, then productivity improves, but beer clarity and stability may be compromised
Solution Approach 1:
The proline-specific protease serves as a catalytic intermediary that enables rapid stabilization without sacrificing quality. By accelerating the biochemical reactions involved in aggregate formation and removal, the enzyme allows the process to be shortened while still achieving complete clarity and stability, thus resolving the contradiction between productivity and reliability
4Reliability
If conventional stabilization methods are used, then complete removal of haze-active proteins is achieved, but the process requires extended cold storage time
Solution Approach 1:
The proline-specific protease performs preliminary hydrolysis of haze-active proteins during the stabilization phase, breaking down protein structures before cold storage. This preliminary biochemical action pre-processes the proteins to facilitate faster and more complete removal during the subsequent cold storage period, allowing the overall process to be shortened while maintaining complete protein removal efficacy
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables a more efficient and flexible brewing process, reducing the stabilization phase to the time required for cooling the beer to packaging temperature, thereby saving energy and costs while maintaining beer quality and clarity.
Implementation Method 1
a proline-specific endoprotease is used as an alternative to PVPP or silicagel treatment to prevent chill haze formation. During the beer fermentation, the enzyme selectively hydrolyses the haze-active, proline-rich proteins hereby preventing the precipitation of protein-polyphenol complexes
Implementation Method 2
Aggregation and subsequent precipitation of these aggregates is facilitated during the stabilisation phase by cooling the beer to 0 or even -2°C for about 7 to 10 days
Implementation Method 3
residual, non-precipitated polyphenols can be removed by absorption to polyvinylpolypyrrolidone (PVPP) and/or remaining haze-active proteins can be removed by absorption to silica gel
Data Source
Figure 1
AI summary
The present invention relates to the use of a proline-specific protease for accelerating the beer brewing process. In particular, it relates to the use of a proline-specific protease for accelerating the beer brewing process by shortening and simplifying the stabilisation phase of beer production. The stabilisation period as such can be omitted from the beer making process hereby saving significant costs and adding to the flexibility of beer producing plants.