Natamycin Polyelectrolyte Complex for Food Surface Protection
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Solution Overview
Problem
Natamycin, a widely used antifungal compound, is limited by its poor solubility and diffusion characteristics, leading to inadequate protection against mold growth in food and feed products, especially under conditions of high contamination or exposure to UV light and chemical interactions, resulting in economic losses and health risks.
Innovation Solution
A processed edible product is created by complexing natamycin with a polyelectrolyte complex of a polyanion, such as lignosulfonate, and a polycation, like chitosan, which enhances the antimicrobial activity and stability of natamycin, allowing for improved adherence and prolonged release on food surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If natamycin is applied directly to food products, then antimicrobial activity is achieved, but poor solubility limits its effectiveness and protection duration
Solution Approach 1:
The patent applies composite materials by combining natamycin with polyelectrolyte complexes (such as chitosan-polyanion complexes) to create a composite formulation. This composite approach enhances the solubility and stability of natamycin while maintaining its antifungal activity, directly resolving the contradiction between antimicrobial effectiveness and solubility limitations
Solution Approach 2:
The patent utilizes parameter changes by modifying the physical and chemical state of natamycin through complexation with polyelectrolytes. This changes the solubility parameters and release characteristics of natamycin, enabling it to remain in solution longer and provide sustained protection, thereby improving both effectiveness and stability
2Reliability
If natamycin concentration is increased to improve protection, then antimicrobial activity is enhanced, but the required dosage increases leading to economic losses
Solution Approach 1:
The patent implements continuity of useful action through controlled release mechanisms provided by the polyelectrolyte complexes. These complexes gradually release natamycin over extended periods, maintaining effective concentrations for longer durations without requiring increased initial dosages, thus improving protection while reducing overall substance consumption
Solution Approach 2:
By changing the release rate parameter of natamycin through complexation, the patent achieves sustained antimicrobial activity at lower concentrations, resolving the contradiction between protection effectiveness and dosage quantity
3Object-affected harmful factors
If natamycin is used to prevent fungal growth, then spoilage is reduced, but inadequate protection under high contamination or UV exposure results in food loss
Solution Approach 1:
The patent applies beforehand cushioning by using polyelectrolyte complexes to pre-protect natamycin from degradation by UV light and chemical interactions. This protective complexation ensures that natamycin remains stable and active even under harsh conditions such as high contamination levels or UV exposure, maintaining reliable protection without increasing dosage
Solution Approach 2:
By creating a composite system where polyelectrolytes protect natamycin from environmental stressors, the patent enhances the durability of protection against fungal spoilage under challenging conditions, resolving the contradiction between harmful factor resistance and protection reliability
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 complex significantly improves the antimicrobial effect of natamycin against fungi, providing longer-lasting protection against mold growth and reducing the required concentration of natamycin, thus enhancing the efficacy and stability of the antimicrobial activity.
Implementation Method 1
a polyelectrolyte complex of a polyanion (such as lignosulfonate) and a polycation (such as chitosan)
Implementation Method 2
allowing for improved adherence and prolonged release on food surfaces
Data Source
AI summary
The invention related to a processed edible product comprising a complex of at least one antimicrobial compound and a polyelectrolyte complex of a polyanion and a polycation. The invention further relates to a method for producing a processed edible product comprising a complex of at least one antimicrobial compound and a polyelectrolyte complex of a polyanion and a polycation, to a method for preventing spoilage of a processed edible product, and to a method of preventing, reducing and/or eliminating the presence of fungi, bacteria and/or viruses on a processed edible product. The invention additionally relates to a use of a complex of a antimicrobial compound and a polyelectrolyte complex of a polyanion and a polycation for preventing, reducing and/or eliminating the presence of fungi, bacteria and/or viruses on a processed edible product.