Stabilizing Compounds for Amylase Activity in Liquid Enzyme Preparations
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Solution Overview
Problem
Liquid enzyme products face significant challenges in maintaining enzymatic activity during storage, especially when containing complexing agents like EDTA, DTPA, MGDA, or GLDA, which can lead to loss of activity over time, necessitating the development of a stabilizing compound to prevent this degradation.
Innovation Solution
The use of compounds according to general formula (I), which include specific alkyl and aryl groups, acts as an enzyme stabilizer to retain the activity of hydrolases, such as amylases, in liquid enzyme preparations, preventing precipitation and turbidity even after extended storage at elevated temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If enzyme is stored in aqueous environment, then enzyme remains soluble and easy to use, but enzymatic activity is lost over time
Solution Approach 1:
The patent introduces compound (I) as an intermediary substance that mediates between the aqueous environment and the enzyme. This compound forms a protective complex with the enzyme, preventing direct harmful interactions between water and the enzyme structure, thereby maintaining both solubility and activity during storage
Solution Approach 2:
The invention changes the chemical parameters of the storage environment by adding compound (I) with specific molecular structure characteristics (hydrophobic aromatic groups combined with hydrophilic substituents). This parameter change allows the system to maintain enzyme stability in aqueous solution without requiring conversion to anhydrous form
2Adaptability or versatility
If complexing agents like EDTA, DTPA, MGDA, or GLDA are added to liquid enzyme products, then chelating capability is improved, but enzymatic activity is reduced over time
Solution Approach 1:
Compound (I) acts as a protective intermediary that shields the enzyme from the harmful effects of complexing agents. The compound forms a protective layer or complex around the enzyme, preventing direct interaction between the complexing agents and the enzyme's active site or structural elements
Solution Approach 2:
The invention creates a composite enzyme preparation system consisting of the enzyme, complexing agents, and compound (I) working together. This composite formulation allows the beneficial chelating properties of agents like EDTA or MGDA to be retained while compound (I) compensates for the harmful effects on enzyme stability
3Reliability
If enzyme is converted to anhydrous form, then enzymatic activity is maintained during storage, but solubility and ease of use are reduced
Solution Approach 1:
The invention changes the storage parameters by allowing the enzyme to remain in aqueous form through the addition of compound (I). This parameter change eliminates the need for conversion to anhydrous form while maintaining enzyme activity, thereby preserving solubility and ease of use
4Reliability
If enzyme inhibitors are used to stabilize enzymes in liquid products, then enzymatic activity is retained during storage, but the enzyme cannot perform its function until inhibitor is released
Solution Approach 1:
Compound (I) serves as a stabilizing intermediary that protects the enzyme during storage without forming a reversible inhibitory complex. Unlike traditional enzyme inhibitors, compound (I) maintains enzyme stability through a different mechanism that does not require inhibitor release for activation, thus eliminating the time delay
Data Source
AI summary
Described herein is an enzyme preparation includingComponent (a): at least one compound according to general formula (I)whereinR1 is H;R2, R3, R4 are independently from each other selected from the group consisting of H, linear C1-C8 alkyl, and branched C3-C8 alkyl, C6-C10-aryl, non-substituted or substituted with one or more carboxylate or hydroxyl groups, and C6-C10-aryl-alkyl, wherein an alkyl of the C6-C10-aryl-alkyl is selected from the group consisting of linear C1-C8 alkyl and branched C3-C8 alkyl, wherein at least one of R2, R3, and R4 is not H,component (b): at least one enzyme selected from the group consisting of hydrolases (EC 3) and proteasescomponent (c): at least one compound selected from the group consisting of solvents, enzyme stabilizers different from component (a), and compounds stabilizing the enzyme preparation.