Engineered Vibrio Natriegens Fermentation for Succinic Acid

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Solution Overview

Problem

Conventional petrochemical methods for succinic acid production are environmentally harmful, economically unstable, and face operational challenges, necessitating a sustainable and efficient bio-based alternative.

Innovation Solution

Utilizing Vibrio natriegens with genetically engineered modifications to enhance substrate uptake and redirect metabolic pathways, optimizing anaerobic metabolism for high-yield succinate production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If petrochemical methods are used for succinic acid production, then production efficiency is maintained, but environmental harm and carbon emissions increase

Engineering Contradiction:

Improveproduction efficiencyVSAvoidenvironmental harm

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the fundamental parameter of production method from petrochemical to bio-based fermentation. By using genetically engineered Vibrio natriegens with optimized metabolic pathways, the process achieves high succinic acid productivity while eliminating the environmental harm associated with petrochemical methods, including carbon emissions and ecological damage from fossil fuel extraction and processing

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs a rapidly growing bacterial strain (V. natriegens with doubling time of 10-20 minutes) that can be quickly cultivated and discarded after use, replacing the need for expensive and environmentally damaging petrochemical infrastructure. The fast-growing biomass serves as a temporary, renewable production system that leaves minimal environmental residue

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Quantity of substance

If petrochemical methods are used for succinic acid production, then supply is maintained, but economic stability deteriorates due to oil price fluctuations

Engineering Contradiction:

ImprovesupplyVSAvoideconomic stability

Core Design Contradiction:

Quantity of substanceVSReliability

Solution Approach 1:

The patent fundamentally changes the feedstock parameter from fossil fuels to renewable biomass resources. By using genetically engineered V. natriegens that can metabolize various carbon sources, the process achieves stable succinic acid supply while eliminating dependence on volatile oil prices, thereby improving economic reliability and insulation from petroleum market fluctuations

Inventive Principle:

Principle #35Parameter changes

3Productivity

If petrochemical methods are used for succinic acid production, then production capacity is maintained, but operational complexity increases due to by-product separation and hazardous reagent management

Engineering Contradiction:

Improveproduction capacityVSAvoidoperational complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent replaces complex petrochemical processing systems with a simple fermentation system using fast-growing V. natriegens. The bacterial cells serve as temporary, disposable biocatalysts that convert substrates to succinic acid through their natural metabolism, eliminating the need for complex separation units, hazardous reagent handling systems, and strict environmental compliance infrastructure required by petrochemical methods

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The genetically engineered V. natriegens performs the production function autonomously through its own metabolic pathways. The bacteria self-regulate their growth and succinic acid synthesis without requiring complex external control systems, by-product removal mechanisms, or hazardous material management infrastructure, thereby dramatically simplifying operational complexity while maintaining high production capacity

Inventive Principle:

Principle #25Self-service

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

Achieves high succinate yields and productivity, reducing carbon emissions and reliance on fossil fuels, providing a scalable and cost-effective bio-based production method.

Implementation Method 1

Microbial fermentation offers a renewable, environmentally benign, and economically viable alternative

Methodology Applied

Scientific EffectFermentation: Fermentation

Implementation Method 2

redirect cellular resources and intermediary metabolites into the reductive tricarboxylic acid (rTCA) pathway

Methodology Applied

Scientific EffectMetabolic pathway conversion:

Data Source

PatentUS20250297291A1Bio-based production of succinic acid using vibrio natriegens

Publication Date: 2025.09.25 GENERAL BIOLOGICAL CORP

AI summary

This disclosure provides methods and genetically engineered strains of Vibrio natriegens, specifically developed for the bio-based production of succinate. Capitalizing on the rapid growth kinetics and highly efficient carbon metabolism of V. natriegens, this disclosure provides an environmentally friendly, scalable, and cost-effective alternative to traditional petrochemical methods for succinate production.