Mucin Isolation via Sequential Filtration and Bubble Column
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Solution Overview
Problem
Current methods for isolating mucin are time-consuming, labor-intensive, and result in mucin loss due to aggressive purification processes, leading to commercially available mucins that have lost their lubricious properties and are undetectable by standard antibodies, making them unsuitable for experimental use.
Innovation Solution
A method involving at least two subsequent filtration steps with decreasing filter pore sizes, combined with the use of a bubble column to isolate mucin from mucin-containing solutions, eliminating the need for centrifugation and preserving the mucin's native properties, allowing for high-yield, high-quality mucin production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple centrifugation steps and size exclusion chromatography are used to purify mucin, then purification quality is improved, but processing time and labor intensity increase significantly
Solution Approach 1:
The patent extracts and removes the time-consuming centrifugation and size exclusion chromatography steps from the purification process, replacing them with a simple filtration method that achieves comparable purification quality in minutes rather than hours
Solution Approach 2:
The patent replaces the mechanical centrifugation system and chromatography system with a simple filtration system, substituting complex mechanical separation processes with a simpler filtration mechanism that achieves the same purification effect
2Productivity
If aggressive purification processes are applied to isolate mucin, then purification efficiency is improved, but mucin structural integrity and lubricious properties are damaged
Solution Approach 1:
The patent uses disposable filtration materials (coffee filters, filter paper) instead of aggressive purification chemicals or complex mechanical forces, achieving effective purification without damaging the mucin structure
Solution Approach 2:
The patent changes the purification approach from aggressive mechanical/chemical methods to gentle filtration, maintaining mucin structural integrity while achieving sufficient purification for experimental use
3Manufacturing precision
If manual scraping and multiple processing steps are used to harvest and purify mucin, then purification is achieved, but mucin loss occurs at each step
Solution Approach 1:
The patent combines the harvesting and purification steps into a single filtration operation, eliminating intermediate transfer steps where mucin loss occurs, and achieving both harvest and purification in one process
Solution Approach 2:
The patent performs preliminary dilution of the mucus with PBS before filtration, which prevents clogging and ensures complete mucin recovery in the filtrate, minimizing loss
4Productivity
If commercial purification methods are used to produce mucin, then large scale production is achieved, but the mucin becomes undetectable by antibodies and loses experimental utility
Solution Approach 1:
The patent creates a simplified copy of the manual purification protocol that can be scaled up while maintaining the key feature of gentleness, producing mucin that retains antibody detectability unlike commercial products
Solution Approach 2:
The patent segments the purification process into simple filtration steps rather than aggressive sequential processing, allowing scale-up while preserving mucin integrity and antibody recognition sites
Data Source
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AI summary
The invention provides a method for isolating mucin from a mucin containing solution whereby the mucin containing solution is subjected to at least two subsequent filtration steps, using decreasing filter pore size diameters in each consecutive filtration step, and thereby producing a filtered mucin containing solution. Further encompassed are a bubble column and the use thereof in the method for isolating mucin. The invention also provides a mucin obtained by the method of the invention. Moreover, the herein described invention provides a composition comprising the mucin obtained by the method of the invention.