Biofertilizer Consortium with Sodium Alginate for Cell Viability

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Solution Overview

Problem

Current biofertilizers have low cell density and short storage life, leading to decreased agricultural output despite their application, as they often degrade quickly due to low humidity in solid or powder forms, resulting in steep declines in viability and effectiveness.

Innovation Solution

A biofertilizer consortium comprising Pseudomonas stutzeri, Pseudomonas denitrificans, Pseudomonas resinovorans, Pseudomonas brassicacearum, Pseudomonas fluorescens, Shimwellia blattae, and Klebsiella oxytoca, formulated with a vehicle containing dehydrated milk whey, potassium chloride, and cell protectants like sodium alginate, maintaining high cell density and extending storage life to at least eight months.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If biofertilizer is formulated in solid or powder form, then it is easier to store and transport, but cell viability decreases rapidly due to low humidity

Engineering Contradiction:
Improveease of storage and transportVSAvoidcell viability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent changes the physical state parameter of the biofertilizer from solid/powder to liquid form, which maintains higher humidity levels necessary for preserving bacterial cell viability during storage and transport

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite liquid formulation combining multiple bacterial strains (Pseudomonas stutzeri, P. denitrificans, P. resinovorans, P. brassicacearum, P. fluorescens, Shimwellia blattae, and Klebsiella oxytoca) with protective carriers and nutrients, resulting in a stable liquid biofertilizer that maintains both ease of application and high cell viability

Inventive Principle:
Principle #40Composite materials

2Ease of operation

If conventional biofertilizer formulations are used, then application is simple, but storage life is short (less than eight months) due to rapid degradation

Engineering Contradiction:
Improvesimplicity of applicationVSAvoidstorage life
Core Design Contradiction:
Ease of operationVSDuration of action of stationary object

Solution Approach 1:

The patent incorporates cell protectants and protective carriers in the liquid formulation before storage, which cushion and protect the bacterial cells from degradation during storage, extending shelf life to at least eight months while maintaining simplicity of application

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The patent uses protective carriers as intermediaries between the bacterial cells and the storage environment, shielding the cells from harmful conditions during storage while allowing easy application to crops

Inventive Principle:
Principle #24Intermediary (Mediator)

3Duration of action of stationary object

If cell density is reduced to extend storage life, then storage stability improves, but agricultural output decreases

Engineering Contradiction:
Improvestorage stabilityVSAvoidagricultural output
Core Design Contradiction:
Duration of action of stationary objectVSProductivity

Solution Approach 1:

The patent changes the formulation parameters to create a liquid biofertilizer that maintains high cell density (1×10^9 CFU/mL) while achieving extended storage stability of at least eight months, thereby preserving both productivity and storage properties

Inventive Principle:
Principle #35Parameter changes

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 biofertilizer consortium maintains high cell viability and density, significantly increasing crop yields by up to 59% and extending shelf life, demonstrating improved agricultural output and storage stability.

Implementation Method 1

cell protectants like sodium alginate

Methodology Applied
Scientific EffectGel formation: Gel

Implementation Method 2

formulated with a vehicle containing dehydrated milk whey

Methodology Applied
Scientific EffectProtective coating: Coatings

Data Source

PatentEP3453694B1Bio-fertiliser for increasing crop yields
Publication Date: 2023.05.31 CENTRO DE INVESTIGACION Y ASISTENCIA EN TECNOLOGIA Y DISENO DEL ESTADO DE JALISCO A C
  • EP3453694B1 patent drawingFigure 1~2
  • EP3453694B1 patent drawingFigure 3~4
  • EP3453694B1 patent drawingFigure 5~6

AI summary

This invention consists of a consortium of plant-growth promoting microorganisms including Pseudomonas stutzeri, Pseudomonas denitrificans, Pseudomonas resinovorans, Pseudomonas brassicacearum, Pseudomonas fluorescens, Shimwellia blattae and Klebsiella oxytoca. The bacterial consortium along with a vehicle suitable for agricultural application, form a biofertilizer useful to enhance agricultural yield when applied to cultivation plants. The biofertilizer described present a long shelf life and preserve a high cell density along the time.