Stabiliser-Free Cottage Cheese Dressing via Whey Protein Aggregates
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Solution Overview
Problem
Existing methods face challenges in producing heat-treated, low-fat, near pH-neutral cottage cheese dressings that avoid the use of carbohydrate-based stabilizers, particularly in achieving the desired viscosity and mouthfeel without graininess.
Innovation Solution
The use of acid-gellable whey protein aggregates and chloride salts to create a heat-treated, thickened dairy liquid with a pH range of 6-8 and viscosity of 20-400 cP, achieved by heat-treating a dairy base containing milk fat, milk protein, and acid-gellable whey protein aggregates, and then adding chloride salts to enhance viscosity and prevent graininess.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If carbohydrate stabilisers (guar gum, xanthan) are used to thicken cottage cheese dressing, then viscosity and stability are improved, but the product contains unwanted stabilisers that the invention aims to eliminate
Solution Approach 1:
The invention extracts and eliminates carbohydrate stabilisers from the cottage cheese dressing formulation, replacing them with whey protein concentrate as the sole thickening and stabilising agent. This removal of unwanted stabilisers while maintaining functionality directly addresses the contradiction.
Solution Approach 2:
The invention changes the chemical composition parameters by substituting carbohydrate-based stabilisers with protein-based whey concentrate. By adjusting the protein concentration and molecular weight characteristics, the dressing achieves equivalent or superior stability without carbohydrate additives.
2Object-generated harmful factors
If whey protein concentrate is used to thicken the dressing without carbohydrate stabilisers, then stabiliser-free formulation is achieved, but the viscosity and mouthfeel may be insufficient
Solution Approach 1:
The invention uses composite whey protein materials with specific molecular weight distributions, combining different protein fractions to achieve optimal thickening and mouthfeel properties. This composite approach allows the protein mixture to replicate the functional properties previously provided by carbohydrate stabilisers.
Solution Approach 2:
The invention optimises parameters including whey protein concentrate concentration, molecular weight distribution, and pH conditions to maximize viscosity and mouthfeel. By carefully controlling these parameters, the protein-based system achieves sufficient thickening power without requiring carbohydrate additives.
3Quantity of substance
If low fat content is used in cottage cheese dressing, then health benefits are improved, but the dressing may lack creaminess and stability
Solution Approach 1:
The invention introduces whey protein concentrate as an intermediary substance that mediates between low fat content and desired creaminess. The protein forms a stabilising network that compensates for reduced fat, providing cream-like mouthfeel and dressing stability without requiring high fat levels.
Solution Approach 2:
The invention creates a composite formulation where whey protein fractions work synergistically to provide creaminess in low-fat conditions. The combination of different protein molecular weights creates a textured system that mimics the mouthfeel of higher-fat dressings while maintaining low fat content.
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 produces a thickened dairy liquid with a pleasant, viscous mouthfeel and no detectable graininess, suitable for use as a cottage cheese dressing, maintaining stability and retention when mixed with curd particles.
Implementation Method 1
heat-treating whey protein aggregates at a temperature of 68-95°C for 5-120 minutes
Implementation Method 2
heat-treated, thickened dairy liquid comprising added chloride salt of Na+ or K+ and acid-gellable, heat-denatured whey protein aggregates
Implementation Method 3
adding chloride salt of Na+ or K+ to the heat-treated dairy liquid to enhance viscosity and prevent graininess
Data Source
Figure 1
Figure 2
Figure 3a~3b
AI summary
The present invention pertains to a stabiliser-free cottage cheese, a thickened, stabiliser-free dairy liquid which is suitable as dressing for the cottage cheese and to methods of producing both the thickened dairy liquid and the cottage cheese.