RTD Milk Beverage Texture via Controlled Protein Aggregation
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Solution Overview
Problem
Reduced fat and sugar content in ready-to-drink (RTD) milk beverages results in an undesirable thin mouthfeel and stability issues, compromising consumer preference and shelf life.
Innovation Solution
A stabilizing system comprising a mixture of microcrystalline cellulose, carboxymethyl cellulose, and carrageenan, combined with a specific ratio of casein to whey proteins and controlled protein aggregation, enhances the texture and stability of RTD milk beverages, maintaining a pleasant mouthfeel and extended shelf life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sugar and fat content are reduced in RTD milk beverages, then healthiness is improved, but mouthfeel and texture deteriorate
Solution Approach 1:
Hydrocolloids (stabilizers) are introduced as intermediary substances to compensate for the reduced fat content. These hydrocolloids form a stabilizing system that creates a creamy mouthfeel and rich texture without requiring high fat or sugar content, thus resolving the contradiction between healthiness and sensory quality
Solution Approach 2:
The patent changes the physical and chemical parameters of the beverage by controlling protein aggregation through pH adjustment (to isoelectric point) and heat treatment. This creates protein aggregates that provide texture and mouthfeel compensation, allowing reduced fat/sugar formulations to maintain sensory quality
2Ease of operation
If protein aggregation is controlled to improve texture, then mouthfeel is enhanced, but gelation and phase separation issues may occur
Solution Approach 1:
A composite stabilizing system is used comprising multiple hydrocolloids (e.g., carrageenan, locust bean gum, microcrystalline cellulose) working synergistically. This composite approach provides both texture enhancement through controlled protein aggregation and physical stability prevention of gelation and phase separation during storage
Solution Approach 2:
The patent carefully controls processing parameters including pH adjustment to isoelectric point (5.2-5.8), heat treatment temperature (60-90°C) and time (5-30 minutes), and ionic strength to achieve desired protein aggregation for texture while preventing excessive aggregation that would cause gelation or instability
3Duration of action of stationary object
If extended shelf life is achieved through aseptic packaging, then storage duration is improved, but storage conditions become more stringent
Solution Approach 1:
Protein aggregation and stabilizing system formation are performed preliminarily during beverage processing before packaging. This pre-stabilization ensures the beverage maintains physical stability and prevents gelation during extended storage, enabling long shelf life (6-12 months) under various storage conditions including refrigeration and ambient temperatures
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 RTD milk beverages with improved texture and stability, maintaining a creamy taste and preventing gelation or phase separation issues during storage, ensuring stability for at least 6 months at refrigeration and up to 7 months in aseptic conditions.
Implementation Method 1
a stabilizing system comprising a mixture of microcrystalline cellulose (MCC), carboxymethyl cellulose (CMC) and carrageenan
Implementation Method 2
the beverage upon reconstitution in an aqueous medium comprises casein-whey protein aggregates having a volume based mean diameter value D[4,3] of at least 3 μm
Data Source
AI summary
The present invention relates to beverage products. In particular, the invention is concerned with a protein system induced by controlled aggregation of milk proteins which imparts outstanding sensory attributes on beverage product, in particular when containing low fat and/or low sugar. A method of producing such beverage and the products obtainable from the method are also part of the present invention.