Cellulose Composite Stabilization in Acidic Beverages
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Solution Overview
Problem
Conventional cellulose composites with hydrophilic gums exhibit poor dispersion and suspension stability in acidic or high salt concentration aqueous media, leading to aggregation and separation issues in beverages like fruit juice and lactobacillus beverages.
Innovation Solution
A cellulose composite with crystalline cellulose and a branched anionic polysaccharide hydrophilic gum, such as psyllium seed gum, is kneaded to achieve a high storage elastic modulus, enhancing dispersion and suspension stability by forming a rigid network structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cellulose composite with hydrophilic gum is used, then it forms cellulose colloid in aqueous medium, but dispersion stability and suspension stability are insufficient in acidic or high salt concentration conditions
Solution Approach 1:
The patent combines crystalline cellulose with a specific hydrophilic gum to create a composite material that leverages the strengths of both components. The crystalline cellulose provides structural integrity while the hydrophilic gum enhances dispersion stability, creating a composite that maintains stability in acidic and high salt concentration conditions where conventional single materials fail.
Solution Approach 2:
The patent specifies precise parameter ranges for the composite including crystalline cellulose content (5-50 wt%), hydrophilic gum content (50-95 wt%), particle size (0.1-10 μm), and molecular weight (10^4-10^6). By optimizing these parameters, the composite achieves enhanced dispersion stability and suspension stability in challenging environmental conditions while maintaining low viscosity.
2Reliability
If micro fibrous cellulose is used to improve suspension stability, then it can fix particles in acidic or high salt concentration food, but the composite structure is not formed and suspension stability remains insufficient
Solution Approach 1:
The patent merges crystalline cellulose particles with hydrophilic gum molecules to form an integrated composite structure. The hydrophilic gum coats and binds the cellulose particles together, creating a unified composite that functions as a single stabilizing entity rather than separate components, thereby achieving both composite structure formation and enhanced suspension stability.
Solution Approach 2:
The hydrophilic gum acts as an intermediary that bridges crystalline cellulose particles, facilitating their interaction and enabling the formation of a stable composite structure. The gum molecules adsorb onto cellulose particle surfaces and create inter-particle connections, mediating the formation of the composite network that provides suspension stability.
3Reliability
If bacterial cellulose with extremely thin and long shape is used, then dispersion stability is excellent, but storage elastic modulus becomes excessively high and texture becomes heavy
Solution Approach 1:
The patent applies local quality by controlling the particle morphology of crystalline cellulose to have small, relatively spherical or oval shapes (0.1-10 μm diameter) rather than the extremely thin and long shape of bacterial cellulose. This localized structural modification at the particle level maintains dispersion stability while preventing excessive network formation that would lead to high storage elastic modulus and heavy texture.
Solution Approach 2:
The patent changes critical parameters including particle size (0.1-10 μm), shape (spherical or oval cross-section), and crystalline structure to optimize the balance between dispersion stability and storage elastic modulus. By controlling these parameters, the composite achieves adequate dispersion stability without the excessively high stiffness that characterizes bacterial cellulose systems.
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 cellulose composite maintains excellent dispersion and suspension stability in acidic or high salt conditions, preventing separation and aggregation, even with added water-insoluble components, thus improving the stability and texture of beverages.
Implementation Method 1
the cellulose composite has a storage elastic modulus (G') of 0.06 Pa or more in a water dispersion of pH 4
Implementation Method 2
exhibits low viscosity, excellent dispersion stability and excellent suspension stability in an acidic or high salt concentration water dispersion
Implementation Method 3
A cellulose composite comprising crystalline cellulose having an average polymerization degree of 500 or less and a hydrophilic gum wherein the hydrophilic gum is a branched anionic polysaccharide
Data Source
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AI summary
Disclosed is a cellulose composite which comprises cellulose and a hydrophilic gum, the cellulose composite giving a 1-mass% aqueous dispersion thereof which has a storage modulus (G') of 0.06 Pa or more when the pH thereof is 4.