PVPP Phenol Removal in Beverages via Disposable Adsorption
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Solution Overview
Problem
The beer and wine production industries face challenges in removing haze-forming and astringent taste contaminants, particularly phenols, which affect the quality and stability of beverages.
Innovation Solution
A method involving the use of poly(N-vinyl-2-pyrrolidone) (PVPP) in contact with the beverages, either as a standalone surface or integrated into a water-insoluble matrix or combined with other polymers and materials, to effectively remove phenol contaminants, including catechins, from liquids such as beer and wine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If poly(N-vinyl-2-pyrrolidone) is used to remove phenol contaminants from beverages, then the purity and taste quality of the beverage is improved, but the complexity of the treatment process increases
Solution Approach 1:
The patent employs disposable poly(N-vinyl-2-pyrrolidone) particles that are added to the beverage, perform their phenol-removal function, and then discarded via filtration. This eliminates the need for complex reusable systems with cleaning and regeneration cycles, achieving high phenol removal efficiency while keeping the process simple and cost-effective.
Solution Approach 2:
The patent extracts phenol contaminants from the beverage by introducing PVPP particles that selectively bind to phenolic compounds. The phenol-PVPP complexes are then removed through simple filtration, achieving effective purification without requiring complex in-situ treatment systems.
2Manufacturing precision
If poly(N-vinyl-2-pyrrolidone) is added to remove phenols, then the beverage purity is improved, but the loss of time in the processing increases
Solution Approach 1:
The PVPP particles are pre-prepared and pre-characterized for optimal phenol binding performance before use. This preliminary preparation ensures that when the particles are added to the beverage, they immediately begin binding phenols at maximum efficiency, reducing the contact time required and thus minimizing processing time while achieving high purity.
Solution Approach 2:
The patent optimizes parameters such as PVPP particle size, concentration, and contact time to achieve rapid phenol removal. By adjusting these parameters, the process achieves high beverage purity within a minimized time frame, balancing effectiveness with processing efficiency.
3Ease of operation
If a water-insoluble matrix is used to contain PVPP, then the ease of removal of PVPP from the beverage is improved, but the manufacturing complexity of the composition increases
Solution Approach 1:
The patent creates a composite material consisting of PVPP particles embedded in a water-insoluble matrix. The matrix provides structural integrity and water insolubility, enabling easy removal via filtration, while the PVPP maintains its phenol-binding functionality. This composite approach balances manufacturing complexity with operational ease.
Solution Approach 2:
The water-insoluble matrix is designed with a porous structure that allows phenol molecules to diffuse into the matrix and reach the PVPP binding sites, while the overall composite remains water-insoluble and filterable. This porous architecture enables effective phenol removal while maintaining ease of PVPP composite removal from the beverage.
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
The method significantly reduces phenol levels, maintaining beverage quality and stability over time, with PVPP demonstrating catechin reduction capabilities of up to 80% in aqueous solutions stored at refrigerated temperatures.
Implementation Method 1
contacting the beer or wine with a surface comprising a phenol contaminant removing effective amount of a poly(N-vinyl-2-pyrrolidone)
Data Source
AI summary
A method of removing a phenol contaminant from a beer or wine comprising contacting the beer or wine with a surface comprising a phenol contaminant effective removing amount of a poly(N-vinyl-2-pyrrolidone).