Preservative-Free Liquid Beverage Enhancer with High pH and Humectants
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Solution Overview
Problem
Current liquid water enhancers are not compatible with beverages other than water due to their low pH and preservative content, which can cause curdling in milk and other protein-containing products, and require expensive processing methods for shelf-stability, limiting their use and consumer appeal.
Innovation Solution
Development of a shelf-stable, high pH liquid beverage enhancer with at least 10% non-water solvents with humectant properties, such as propylene glycol and glycerol, that reduces water activity below 0.85, eliminating the need for preservatives and expensive processing methods, while maintaining flavor and color integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional preservatives and low pH are used to ensure shelf-stability, then microbiological stability is improved, but the product causes curdling in milk and protein-containing beverages
Solution Approach 1:
The patent changes the pH parameter from conventional low pH (below 3.0) to a higher pH range (above 4.6), eliminating the need for preservatives while preventing curdling in milk and protein-containing beverages. This parameter change resolves the contradiction by allowing the product to be both microbiologically stable and compatible with dairy products.
Solution Approach 2:
The patent removes conventional preservatives (sodium benzoate, potassium sorbate) from the formulation entirely. By extracting these preservative components and replacing them with a preservative-free system based on higher pH and reduced water activity, the product achieves shelf-stability without causing curdling in milk-based beverages.
2Reliability
If low pH and preservatives are used for shelf-stability, then product preservation is improved, but the product cannot be labeled as 'natural' or 'organic'
Solution Approach 1:
The patent removes synthetic preservatives from the formulation, enabling the product to qualify for 'natural' and 'organic' labeling. Shelf-stability is achieved through alternative means (higher pH and reduced water activity) that do not conflict with natural labeling requirements.
Solution Approach 2:
The patent changes the pH parameter to above 4.6 and reduces water activity through humectants, creating a preservative-free system that maintains shelf-stability while meeting natural and organic labeling criteria.
3Reliability
If low pH is used for preservation, then shelf-stability is improved, but flavor compatibility (especially for chocolate) is reduced
Solution Approach 1:
The patent changes the pH parameter from below 3.0 to above 4.6, creating a less acidic environment that is compatible with chocolate and other flavors that do not require high acidity. This parameter change maintains shelf-stability through alternative mechanisms while improving flavor compatibility.
4Reliability
If traditional thermal processing is used to achieve shelf-stability without preservatives, then preservative-free status is improved, but flavor and color degradation occurs
Solution Approach 1:
The patent replaces thermal processing (mechanical/thermal system) with a chemical formulation approach using higher pH and reduced water activity. This substitution achieves shelf-stability without preservatives while avoiding the flavor and color degradation that occurs with thermal processing.
5Reliability
If processing technologies (thermal, irradiation, high pressure) are used for shelf-stability, then preservative-free status is improved, but equipment cost and complexity increase
Solution Approach 1:
The patent replaces complex processing equipment (thermal, irradiation, high pressure systems) with a simple chemical formulation approach. By using higher pH and reduced water activity, the product achieves shelf-stability without preservatives through formulation rather than processing, eliminating the need for expensive and complex equipment.
6Reliability
If processing technologies are used to achieve shelf-stability, then preservative-free status is improved, but post-opening shelf-life is reduced
Solution Approach 1:
The patent uses higher pH and reduced water activity to create a formulation that is inherently stable both before and after opening. This approach maintains preservative-free status while extending post-opening shelf-life, as the formulation parameters provide ongoing stability without requiring additional processing or preservatives after the container is opened.
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 solution provides a microbiologically stable, preservative-free liquid beverage enhancer that can be used in various beverages and food products without curdling, offering improved flavor and color enhancement while meeting 'natural' labeling standards and extending shelf-life post-opening.
Implementation Method 1
a shelf-stable, highly concentrated liquid flavor and color solution including at least 10% non-water solvents with humectant properties
Implementation Method 2
reduces water activity below 0.85
Data Source
AI summary
A liquid beverage enhancer product including a shelf-stable highly concentrated liquid flavor and color solution including at least 10% non-water solvents with humectant properties including propylene glycol, glycerol, ethanol and other alcohols. The liquid beverage enhancer product in combination with beverages or non-beverage food products. A method of enhancing a beverage by adding a liquid beverage enhancer product including a shelf-stable highly concentrated liquid flavor and color solution having at least 10% non-water solvents with humectant properties to a beverage, and enhancing the flavor and color of the beverage. A method of enhancing milk, milk substitute beverages, and protein containing products, by adding the liquid beverage enhancer product having a pH of greater than 4.6 to milk, milk substitute beverages, or protein containing products, and enhancing the flavor and color of the milk, milk substitute beverages, or protein containing products without curdling.