Acetophenone Derivative Antimicrobial Mixtures
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Solution Overview
Problem
The challenge lies in developing antimicrobial agents with broad-spectrum activity that are toxicologically acceptable, stable, odorless, inexpensive, and easy to formulate, particularly effective against a variety of microorganisms including molds, and suitable for use in cosmetic and pharmaceutical formulations, where there is no clear correlation between chemical structure and biological activity or physico-chemical parameters such as skin tolerability and stability.
Innovation Solution
A mixture comprising acetophenone derivatives and secondary antimicrobial agents like 1-(3-chloroallyl)-3,5,7-triaza-1-azonia-adamantane chloride, combined in specific weight ratios, demonstrating synergistic antimicrobial effects against microorganisms like Aspergillus species and other pathogens, improving stability and performance in cosmetic formulations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If alternative antimicrobial agents are sought to provide targeted specific treatments and reduce side effects, then antimicrobial activity can be improved, but the complexity of selecting and testing substances increases due to no clear dependency between chemical structure and biological activity
Solution Approach 1:
The patent changes the chemical parameters of the acetophenone derivative by introducing specific substituents (halogen atoms at positions 3 and 5, hydroxyl group at position 4) to optimize antimicrobial activity. This systematic parameter modification allows prediction of biological activity based on structural features, reducing testing complexity while improving reliability.
Solution Approach 2:
The patent creates a composite antimicrobial agent by combining the specifically substituted acetophenone derivative with other compatible substances in formulations. This composite approach enhances broad-spectrum activity against bacteria, yeast, and molds while maintaining safety profiles, resolving the contradiction between activity improvement and testing complexity.
2Object-affected harmful factors
If antimicrobial agents are designed to be toxicologically acceptable and readily tolerated by skin, then safety is improved, but antimicrobial effectiveness may be compromised
Solution Approach 1:
The patent applies local quality by introducing specific functional groups at specific positions on the acetophenone core structure. The hydroxyl group at position 4 and halogen atoms at positions 3 and 5 create localized regions of specific chemical properties that enhance antimicrobial activity while the overall molecular structure maintains skin compatibility and toxicological acceptability.
Solution Approach 2:
The patent modifies molecular parameters such as substituent types and positions to achieve optimal balance between effectiveness and safety. The specific substitution pattern (3,5-dihalo-4-hydroxyacetophenone) provides potent antimicrobial activity while maintaining favorable toxicological and dermatological profiles, resolving the safety-effectiveness contradiction.
3Object-generated harmful factors
If antimicrobial agents are required to be largely and preferably completely odourless, then consumer acceptance is improved, but the formulation options are limited
Solution Approach 1:
The patent extracts the odor-causing properties from the active antimicrobial function by using the acetophenone derivative which provides antimicrobial activity without significant odor. This allows the formulation to achieve both low odor and high versatility, as the active ingredient does not interfere with fragrance addition or formulation flexibility.
4Reliability
If broad-spectrum antimicrobial activity is achieved against gram positive and gram negative bacteria, yeast and mould, then antimicrobial effectiveness is improved, but the risk of adverse influence on human or animal body may increase
Solution Approach 1:
The patent modifies the chemical parameters of the acetophenone derivative by introducing specific substituents that enhance broad-spectrum antimicrobial activity while maintaining selective toxicity. The 3,5-dihalo-4-hydroxy substitution pattern provides effectiveness against bacteria, yeast, and molds while the molecular structure maintains favorable safety profiles, resolving the contradiction between broad-spectrum activity and reduced adverse effects.
Data Source
AI summary
Suggested is a synergistic antimicrobial mixture comprising a hydroxyacetophenone and one additional antimicrobial agent. The mixture is particular useful for fighting Aspergillus brasiliensis.