Rape Pollen Polysaccharide Extract for Plant Growth

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Solution Overview

Problem

Current methods for extracting brassinolide from rape pollen have low extraction rates and high costs, and there is a need for a cost-effective plant growth promoter that can enhance crop stress resistance.

Innovation Solution

A pollen polysaccharide extract is obtained through a low-cost, environment-friendly process by mixing rape pollen with water, heating and stirring, filtering, and adding chitosan, which is then used as a plant-derived biostimulant to promote plant growth and stress resistance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If natural brassinolide is extracted from rape pollen using conventional methods, then brassinolide can be obtained, but the extraction rate is low and the cost is high

Engineering Contradiction:

Improveextraction rateVSAvoidcost

Core Design Contradiction:

ProductivityVSEase of manufacture

Solution Approach 1:

The patent extracts and utilizes pollen polysaccharide as a valuable by-product from the brassinolide extraction process. By implementing a water extraction method specifically targeted at polysaccharide recovery, the invention transforms a waste stream into a marketable plant growth promoter, thereby improving overall extraction efficiency and reducing costs associated with disposing of extraction waste.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent employs water as the extraction solvent instead of conventional organic solvents, representing a parameter change in solvent type. This approach not only reduces extraction costs but also improves safety and environmental compatibility while maintaining effective extraction of pollen polysaccharide for plant growth promotion applications.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If artificial synthesis of brassinolide is performed, then brassinolide can be produced, but the synthesis cost is high

Engineering Contradiction:

Improveproduction capacityVSAvoidsynthesis cost

Core Design Contradiction:

ProductivityVSEase of manufacture

Solution Approach 1:

The patent utilizes pollen polysaccharide, a naturally occurring substance in rape pollen, as an alternative to artificially synthesized brassinolide. This self-service approach leverages the plant's own biochemical components to achieve plant growth promotion, eliminating the need for costly artificial synthesis while maintaining effective biological activity.

Inventive Principle:

Principle #25Self-service

3Loss of substance

If pollen polysaccharide is used as a by-product, then extraction waste is reduced, but the value of the by-product is not recognized

Engineering Contradiction:

Improvewaste reductionVSAvoidby-product value

Core Design Contradiction:

Loss of substanceVSQuantity of substance

Solution Approach 1:

The patent converts what was previously considered extraction waste (pollen polysaccharide) into a beneficial plant growth promoter. By recognizing and utilizing the growth-promoting properties of this by-product, the invention transforms a disposal problem into a value-added product that enhances crop growth and stress resistance, thereby converting harm into benefit.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

4Productivity

If conventional extraction methods are used, then brassinolide can be obtained, but environmental pollution is caused

Engineering Contradiction:

Improveextraction efficiencyVSAvoidenvironmental pollution

Core Design Contradiction:

ProductivityVSObject-generated harmful factors

Solution Approach 1:

The patent employs water as a disposable, environmentally benign extraction solvent that can be easily disposed of without causing pollution. This replaces conventional organic solvents that require complex treatment and disposal systems, thereby improving extraction efficiency while eliminating environmental pollution concerns.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

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 pollen polysaccharide extract effectively promotes plant growth, enhances stress resistance to drought, high temperature, and saline-alkali conditions, and reduces agricultural losses, offering a new application for by-products in agriculture while being economically and environmentally beneficial.

Implementation Method 1

adding chitosan to a resulting filtrate to obtain a liquid to be clarified, keeping the liquid to be clarified at 60-80°C for at least 1 h, cooling and allowing to stand, and performing solid-liquid separation

Methodology Applied

Scientific EffectAdsorption: Adsorption

Implementation Method 2

mixing rape pollen with water, then heating and stirring for extraction

Methodology Applied

Scientific EffectSolvation: Solvation

Implementation Method 3

heating and stirring for extraction at least once, filtering, mixing filtrates

Methodology Applied

Scientific EffectDiffusion: Diffusion

Data Source

PatentUS11732056B2Pollen polysaccharide extract and application thereof in plant growth

Publication Date: 2023.08.22 CHENGDU NEWSUN CROPSCI

AI summary

A pollen polysaccharide extract prepared by the following method: mixing rape pollen with water, then heating and stirring for extraction, filtering, mixing filtrates, adding chitosan to a resulting filtrate to obtain a liquid to be clarified, keeping the liquid to be clarified at 60-80° C. for at least 1 h, cooling and allowing to stand, and performing solid-liquid separation to obtain a liquid, namely the pollen polysaccharide extract.