BIT Dispersion Stabilization Using Polysaccharides
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Solution Overview
Problem
Existing BIT dispersion concentrates for controlling microorganisms in aqueous compositions often contain non-approved dispersants, which are not suitable for indirect contact with food, and require additional ingredients to achieve stability and viscosity.
Innovation Solution
A BIT dispersion concentrate is formulated with 1,2-benzisothiazolin-3-one dispersed in an aqueous medium, utilizing polysaccharides such as xanthan gum and hydroxyethylcellulose, with minimal or no surface-active compounds, to maintain stability and viscosity without using non-food-approved ingredients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional dispersants are used to achieve stable BIT dispersion, then stability is improved, but food safety compliance deteriorates
Solution Approach 1:
The patent removes traditional dispersants from the formulation entirely, replacing them with polysaccharide-based thickeners that provide stability through alternative mechanisms. This extraction of harmful ingredients while maintaining functional performance resolves the contradiction between stability and food safety compliance.
Solution Approach 2:
The patent changes the chemical parameters of the formulation by substituting dispersants with polysaccharides at specific concentration ranges (0.1-5% w/v). This parameter change enables the system to achieve stability through polysaccharide-gated aggregation mechanisms rather than traditional dispersant-based stabilization, thereby ensuring food safety compliance.
2Object-affected harmful factors
If dispersants are eliminated to ensure food safety, then food safety compliance is improved, but viscosity and stability deteriorate
Solution Approach 1:
The patent introduces polysaccharides as intermediary substances that mediate between the BIT particles and the aqueous medium. These polysaccharides act as alternative stabilizing agents that provide both viscosity and stability without compromising food safety, resolving the contradiction between eliminating dispersants and maintaining dispersion properties.
Solution Approach 2:
The patent creates a composite formulation combining BIT particles with polysaccharide thickeners in specific ratios. This composite approach enables the system to achieve both stability and food safety compliance simultaneously, as the polysaccharide-BIT composite structure provides stabilization mechanisms that replace traditional dispersant functions.
3Strength
If polysaccharide concentration is increased to improve viscosity, then viscosity is improved, but composition complexity increases
Solution Approach 1:
The patent applies partial action by using polysaccharides at optimized, relatively low concentrations (0.1-5% w/v) rather than high concentrations. This partial application achieves sufficient viscosity and stability while avoiding excessive composition complexity and cost, resolving the contradiction between viscosity improvement and composition 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 solution achieves stable and effective BIT dispersion concentrates with improved viscosity, ensuring physical stability and compliance with food safety regulations by eliminating non-approved dispersants and maintaining BIT concentration, thereby providing a safe and effective biocide solution for aqueous compositions.
Implementation Method 1
utilizing polysaccharides such as xanthan gum and hydroxyethylcellulose, with minimal or no surface-active compounds, to maintain stability and viscosity
Implementation Method 2
utilizing polysaccharides such as xanthan gum and hydroxyethylcellulose, with minimal or no surface-active compounds, to maintain stability
Data Source
AI summary
In a first aspect of the present invention, there is provided a composition comprising 1,2-benzisothiazolin-3-one dispersed in an aqueous medium and further comprising one or more polysaccharide; wherein either(a) said composition comprises no surface-active compound, or(b) said composition comprises one or more surface-active compounds, and the amount of said surface-active compounds in said composition is less than 0.4% by weight based on the weight of said composition.