Chitosan-Lignin Phenol Complex for Root Growth and Pathogen Control
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Solution Overview
Problem
Current agricultural compositions fail to simultaneously provide effective disinfecting action against soil fungi and bacteria, bacteriostatic and fungistatic activity, bactericide, fungicide, microbicide, and nematicide activity in agronomically efficient doses, while also stimulating root growth and protecting plant roots from pathogens.
Innovation Solution
A mixture of poly[beta(1,4)-2-amino-2-deoxyglucopyranose] oligomers and oxidized natural lignin phenols with low molecular weight, forming a synergistic phenol-poly(N-acetylglucosamine) complex that forms a protective film on plants and soils, enhancing root growth and providing extended antimicrobial protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chitosan is used as a biocidal agent, then microbicidal activity is improved, but root growth stimulation is insufficient
Solution Approach 1:
The patent combines chitosan oligomers with oxidized natural lignin phenols to create a synergistic mixture that simultaneously provides microbicidal activity and root growth stimulation. The combination allows both functions to be achieved together in a single application, resolving the contradiction between microbicidal effectiveness and root growth promotion.
Solution Approach 2:
The invention uses a composite mixture of chitosan oligomers and oxidized natural lignin phenols, where each component contributes specific properties. The chitosan provides microbicidal activity while the lignin phenols enhance root growth stimulation, creating a composite material that achieves multiple functions simultaneously.
2Reliability
If multiple active agents are applied to provide comprehensive protection, then disinfecting action is improved, but agronomical efficiency is reduced
Solution Approach 1:
The patent merges chitosan oligomers and oxidized natural lignin phenols into a single synergistic mixture that provides comprehensive protection against fungi, bacteria, and nematodes while maintaining agronomical efficiency. This combination eliminates the need for multiple separate applications of different active agents.
Solution Approach 2:
The mixture of chitosan oligomers and oxidized natural lignin phenols serves multiple functions simultaneously: it provides disinfecting action, bacteriostatic and fungistatic activity, bactericide, fungicide, microbicide, and nematicide activity, all in one application, thereby achieving universality and improving agronomical efficiency.
3Reliability
If protective film is formed on plants, then root protection is improved, but root growth enhancement is limited
Solution Approach 1:
The patent utilizes parameter changes in the chemical composition and molecular structure of the active agents to achieve both protection and growth enhancement. The specific molecular weight ranges and oxidation levels of lignin phenols, along with the degree of deacetylation of chitosan, are optimized to create a protective film that simultaneously stimulates root growth rather than just protecting against pathogens.
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 phenol-poly(N-acetylglucosamine) complex effectively combats harmful fungi, bacteria, insects, and nematodes, while optimizing the use of active agents, with improved root growth and prolonged antimicrobial action, demonstrating enhanced agronomical efficiency and safety.
Implementation Method 1
forming a synergistic phenol-poly(N-acetylglucosamine) complex that forms a protective film on plants and soils
Implementation Method 2
biocidal mixtures with disinfecting and microbicidal activity which also enhance root growth
Data Source
AI summary
The present invention refers to biocidal mixtures with disinfecting and microbicidal activity which also enhance root growth, containing as active ingredients poly[beta(1,4)-2-amino-2-deoxyglucopyranose] oligomers as per formula I, and oxidized natural lignin phenols with a low molecular weight. It also refers to agronomically efficient compositions against fungi, bacteria, insects and nematodes which are harmful to plants in agricultural crops, as well as their uses in agriculture.