Arugula Extract for Plant Defense Stimulation
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Solution Overview
Problem
Current agricultural practices face challenges in effectively addressing plant pathogen infections due to limitations in the stability, effectiveness, and cost of biopesticides, as well as the environmental and health concerns associated with synthetic pesticides, leading to a need for more natural and sustainable solutions.
Innovation Solution
An aqueous extraction method is used to obtain a plant extract from Arugula (Eruca sativa) and related species, which is applied to stimulate plant defenses and reduce the impact of various pathogens, including bacteria and fungi, by enhancing the plant's natural defense mechanisms without direct antimicrobial activity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If synthetic pesticides are used to protect plants from pathogens, then plant protection effectiveness is improved, but environmental pollution and health risks increase
Solution Approach 1:
The patent changes the chemical composition parameters of plant protection products by using aqueous extracts containing glucosinolates and their hydrolysis products (isothiocyanates, nitriles, thiocyanates) instead of synthetic pesticides. These naturally occurring compounds provide pathogen protection while avoiding the harmful environmental and health effects of synthetic chemicals.
Solution Approach 2:
The patent uses readily available plant materials (arugula, rocket, and related Brassicaceae species) as the source of protective compounds. These plant materials can be easily cultivated, extracted, and applied, providing an economical and sustainable alternative to expensive synthetic pesticides with long-term environmental persistence.
2Object-affected harmful factors
If biopesticides are used as natural alternatives, then environmental friendliness is improved, but stability and effectiveness decrease
Solution Approach 1:
The patent utilizes composite chemical structures found in Brassicaceae plants, specifically the glucosinolate-myrosinase system. This composite system consists of glucosinolates (substrates) and myrosinase (enzyme) that work together through hydrolysis to produce multiple active compounds (isothiocyanates, nitriles, thiocyanates) with varying modes of action against pathogens, thereby enhancing overall effectiveness and stability.
Solution Approach 2:
The patent exploits the periodic release of active compounds through the controlled hydrolysis of glucosinolates. The myrosinase enzyme catalyzes the breakdown of glucosinolates over time, providing a sustained release of protective compounds that maintains effectiveness while reducing the need for frequent reapplication.
3Manufacturing precision
If complex extraction methods are used to obtain active compounds, then compound purity is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The patent employs a simplified extraction approach by using aqueous extraction methods to obtain crude extracts containing the glucosinolate-myrosinase system. Rather than isolating individual pure compounds through complex multi-step procedures, the patent extracts the functional composite system directly from plant materials, maintaining effectiveness while significantly reducing manufacturing complexity.
Solution Approach 2:
The patent leverages the self-catalyzing property of the myrosinase enzyme, which automatically hydrolyzes glucosinolates upon contact with water or tissue disruption. This self-service mechanism eliminates the need for additional chemical catalysts or complex processing steps to activate the protective compounds, simplifying the overall manufacturing process.
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 Arugula extract effectively stimulates plant defenses, allowing infected plants to recover and reduce pathogen effects, even in cases of severe infections, without causing harm to the environment or human health, thus providing a sustainable alternative to synthetic pesticides.
Implementation Method 1
an extract obtained by aqueous extraction of at least a part of Arugula plants
Implementation Method 2
The extract is obtained by a simple process of grinding and filtration
Implementation Method 3
compounds derived from glucosinolates (GLS), produced during hydrolysis catalyzed by the enzyme myrosinase (MYR)
Implementation Method 4
hydrolysis catalyzed by the enzyme myrosinase (MYR), have antimicrobial actions
Data Source
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AI summary
The use of an extract of at least a part of rocket plants, preferably chosen from the group of rocket plants of the Eruca (Eruca sativa; Eruca vesicaria, etc.), Diplotaxis (Diplotaxis erucoides, Diplotaxis tenuifolia, Diplotaxis muralis, etc.), Bunias (Bunias erucago, Bunias orientalis, etc.), Erucastrum (Erucastrum nasturtiifolium, Erucastrum incanum, etc.) and Cakile genuses, stimulates the defences of plants or trees and reduces the effects of bacteria and fungi on plants and trees. In particular, the effects: - of Xylella fastidiosa bacteria on myrtle-leaf milkwort, grape vines, olive trees, citrus trees, oleander, almond trees, coffee trees, peach trees and stone fruit trees, oak trees, lavender, rosemary, or broom, - of Xanthomonas arboricola pv. Pruni bacteria on Prunus spp., and preferably the following group of fruit/nut trees: apricot trees, almond trees, cherry trees, peach trees, plum trees, P. salicina, cherry laurel and other exotic or ornamental Prunus species, including P. davidiana and P. laurocerasus, - of Pear Decline Phytoplasma bacteria or Candidatus Phytoplasma pyri on pear trees, and - of Candidatus Phytoplasma solani bacteria on grape vines, lavender, potato plants, tomato plants, aubergine plants, pepper plants and tobacco plants.