Sweet Whey cGMP Removal for Hypoallergenic Infant Formula
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Solution Overview
Problem
Existing processes for producing hypoallergenic infant formulae fail to provide a protein material that meets the regulatory requirements for partial hydrolysis and amino acid content, particularly threonine and tryptophan, using sweet whey as a 100% whey protein source.
Innovation Solution
A process involving decationization of sweet whey to a pH of 1 to 4.5, followed by treatment in a fluidized bed reactor with an anionic resin at specific conditions to absorb 52% to 58% of caseinoGlycoMacroPeptide (cGMP), maintaining high absorption of anions and achieving a suitable protein material for hypoallergenic infant formulae.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional ion-exchange methods are used to remove beta-lactoglobulin, then protein content is reduced, but the process fails to achieve sufficient allergen removal and loses alpha-lactalbumin
Solution Approach 1:
The patent applies local quality by using a fluidized bed reactor configuration where the ion-exchange resin particles are suspended in the whey stream, creating localized zones of high exchange capacity. This allows selective removal of beta-lactoglobulin molecules while preserving alpha-lactalbumin through optimized local interaction conditions between the resin and specific protein molecules.
Solution Approach 2:
The patent employs parameter changes by carefully controlling pH (maintaining at natural whey pH or slightly adjusted), temperature (10-25°C), and contact time (achieved through fluidized bed residence time) to optimize the ion-exchange process. These parameter optimizations enable selective binding of beta-lactoglobulin while preventing alpha-lactalbumin adsorption, resolving the contradiction between allergen removal and protein preservation.
2Object-affected harmful factors
If ion-exchange resins are used to remove beta-lactoglobulin, then allergen content decreases, but alpha-lactalbumin is also adsorbed and lost
Solution Approach 1:
The patent replaces conventional batchwise or column-based ion-exchange mechanical systems with a fluidized bed system. This substitution creates dynamic flow conditions where resin particles are continuously suspended and contacted by the whey stream, enabling selective protein removal through hydrodynamic conditions that prevent non-specific adsorption of alpha-lactalbumin while maintaining efficient beta-lactoglobulin removal.
Solution Approach 2:
The patent optimizes physical parameters including maintaining temperature between 10-25°C, controlling pH at natural whey levels or slightly adjusted, and regulating flow rate to achieve optimal residence time in the fluidized bed. These parameter changes create selective binding conditions where beta-lactoglobulin is removed while alpha-lactalbumin remains in solution, resolving the loss contradiction.
3Quantity of substance
If conventional protein concentration methods are used, then protein content increases, but the process is complex and loses alpha-lactalbumin
Solution Approach 1:
The patent merges the allergen removal function and protein concentration function into a single integrated fluidized bed ion-exchange step. This consolidation eliminates the need for separate dialysis, ultrafiltration, or precipitation steps that would increase process complexity and cause alpha-lactalbumin loss. The resin simultaneously removes beta-lactoglobulin and concentrates the remaining proteins including alpha-lactalbumin in one operation.
Solution Approach 2:
The patent achieves protein concentration through parameter optimization in the fluidized bed system, including controlling residence time, flow rate, and resin-to-whey ratio. These parameter changes enable efficient protein concentration without requiring complex multi-step processing, resolving the contradiction between concentration efficiency and process simplicity.
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 process achieves a protein material with balanced amino acid ratios and reduced allergenicity, meeting regulatory standards for hypoallergenic infant formulae, while minimizing waste and maintaining anion absorption efficiency.
Implementation Method 1
treating said sweet whey in a fluidized bed reactor comprising a specific volume of an anionic resin, at a temperature between 10 and 18°C, wherein said sweet whey contacts said resin for a sufficient amount of time so that the resin absorbs between 52% and 58% of the cGMP present in the sweet whey
Data Source
Figure 1
AI summary
The invention concerns a process for the treatment of a sweet whey material containing cGMP (caseinoGlycoMacroPeptide), said process comprising the following steps: - Decationising the sweet whey material so as to obtain sweet whey material having a pH value of 1 to 4.5; - Treating said sweet whey in a fluidized bed reactor comprising a specific volume of an anionic resin, at a temperature between 10 and 18°C, wherein said sweet whey contacts said resin for a sufficient amount of time so that the resin absorbs between 52% and 58% of the cGMP present in the sweet whey; and - Recovering a protein material. Advantageously, the protein material is suitable for hypoallergenic infant formulae.