Eggshell Membrane Hydrolysis Using Denaturing Agents
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Solution Overview
Problem
Eggshell membrane is highly resistant to conventional enzymatic hydrolysis due to its fibrous structure and cross-linking, making it difficult to solubilize while maintaining nutritional integrity and requiring costly enzyme combinations for effective hydrolysis.
Innovation Solution
A method involving a solution with a denaturing agent, a reducing agent, and an enzyme, specifically using sodium lauryl sulfate or sodium taurocholate as denaturing agents, sodium metabisulfite or dithiothreitol as reducing agents, and papain or bromelain as enzymes, to break down the eggshell membrane, allowing for efficient solubilization and maintaining the integrity of its components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional enzymatic hydrolysis is applied to eggshell membrane, then the process maintains mild conditions and nutritional quality, but the hydrolysis efficiency is insufficient due to enzyme resistance
Solution Approach 1:
The patent applies preliminary action by treating the eggshell membrane with a denaturing agent before enzymatic hydrolysis. This pre-treatment step unfolds the tightly folded protein structures and disrupts the cross-linked fibrous network, making the peptide bonds accessible to enzymes. The denaturing agent is removed after this preliminary step, allowing the enzyme to work efficiently on the pre-prepared substrate without carrying forward the denaturing agent into the final product.
Solution Approach 2:
The patent employs parameter changes by altering the physical-chemical state of the eggshell membrane proteins through denaturation. The denaturing agent changes the conformational parameters of the proteins, transforming them from a tightly folded, enzyme-resistant state to an unfolded, enzyme-accessible state. This parameter change enables conventional enzymes to achieve high hydrolysis efficiency without requiring expensive enzyme cocktails or extreme hydrolysis conditions.
2Productivity
If a combination of several proteinases is used for effective hydrolysis, then the solubilization efficacy improves, but the method cost increases
Solution Approach 1:
The denaturing agent performs a preliminary action of unfolding the protein structures and disrupting cross-links, creating a standardized substrate that is uniformly accessible to enzymes. This pre-preparation eliminates the need for multiple specialized enzymes that would otherwise be required to access different structural regions, allowing a single enzyme to achieve complete hydrolysis effectively.
Solution Approach 2:
By changing the conformational parameters of the substrate through denaturation, the patent transforms an complex, multi-structure protein network into a simplified, accessible polypeptide chain structure. This parameter transformation enables a single enzyme to perform the work that would otherwise require multiple enzymes with different specificities, thereby reducing method cost while maintaining solubilization efficacy.
3Productivity
If acidic or alkaline hydrolysis is applied, then the solubilization efficiency increases, but the nutritional value and protein composition integrity are reduced
Solution Approach 1:
The denaturing agent performs a preliminary unfolding action that opens up the protein structure without breaking peptide bonds or modifying amino acid residues. This pre-denaturation step creates an accessible substrate for enzymatic hydrolysis, enabling the use of mild enzymatic conditions that preserve nutritional value while achieving high solubilization efficiency. The denaturing agent itself is removed after this preliminary step, leaving no harmful residues in the final product.
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 method achieves efficient hydrolysis of eggshell membrane, enabling precise analysis and maintaining the nutritional value of its components, with sodium metabisulfite and DTT showing superior results, suitable for industrial-scale production of food supplements and biopharmaceutical products.
Implementation Method 1
treating a suitable amount of eggshell membrane in a solution containing a denaturing agent, a reducing agent, a buffer, and an enzyme
Implementation Method 2
specifically, it is largely due to the cross-linking of collagen with elastin and keratin, in addition to the abundant disulfide bonds that are part of this framework
Implementation Method 3
proteins must be broken down to the point where they can be integrated in the solution, something which is achieved by means of hydrolysis
Data Source
AI summary
The present invention relates to a method for hydrolyzing eggshell membrane, comprising the step of treating a suitable amount of eggshell in a solution containing a denaturing agent, a reducing agent, a buffer, and an enzyme. The invention also relates to a composition for hydrolyzing eggshell membrane according to the preceding method.