Lactobacillus paracasei CGMCC 14813 Fermentation for Organic Acid Yield

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Solution Overview

Problem

The content of organic acids in plants and microorganisms is relatively low, necessitating a method to increase their levels effectively.

Innovation Solution

The use of Lactobacillus paracasei strain CGMCC No. 14813, which is isolated and characterized for its ability to ferment raw materials such as fruits and vegetables, producing a higher content of organic acids through a controlled fermentation process, including specific growth conditions and medium compositions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If conventional fermentation methods are used, then the fermentation process is simple and easy to operate, but the organic acid content in the fermented product is relatively low

Engineering Contradiction:
Improveorganic acid contentVSAvoidfermentation efficiency
Core Design Contradiction:
Quantity of substanceVSProductivity

Solution Approach 1:

The patent optimizes fermentation parameters including temperature (30-37°C), pH (5.5-6.5), and aeration rate (0.5-2 vvm) to maximize organic acid production. The culture medium composition is also optimized with specific carbon sources (50-100 g/L glucose), nitrogen sources (5-20 g/L peptone), and minerals to enhance the metabolic activity of Lactobacillus paracasei and increase organic acid yield

Inventive Principle:
Principle #35Parameter changes

2Productivity

If Lactobacillus paracasei CGMCC No. 14813 is used for fermentation, then the organic acid production efficiency is improved, but the cultivation conditions require precise control

Engineering Contradiction:
Improveorganic acid production efficiencyVSAvoidfermentation control system
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The Lactobacillus paracasei strain exhibits robust fermentation performance with inherent resistance to contamination and ability to maintain optimal metabolic activity under controlled conditions. The strain self-regulates its fermentation process, converting carbohydrates to organic acids efficiently without requiring complex external control mechanisms, thereby achieving high productivity with manageable system complexity

Inventive Principle:
Principle #25Self-service

3Quantity of substance

If traditional organic acid extraction methods are used, then the process is simple, but the extraction efficiency and purity are limited

Engineering Contradiction:
Improveorganic acid extraction efficiencyVSAvoidextraction process complexity
Core Design Contradiction:
Quantity of substanceVSEase of manufacture

Solution Approach 1:

The fermentation process is optimized in advance to pre-concentrate organic acids in the culture broth through controlled metabolic accumulation. The culture medium is formulated beforehand with optimal carbon-to-nitrogen ratios and buffer systems that facilitate organic acid accumulation during fermentation, thereby simplifying subsequent extraction operations and improving overall recovery efficiency

Inventive Principle:
Principle #10Preliminary action

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 Lactobacillus paracasei strain CGMCC No. 14813 significantly increases the organic acid content in fermented products, demonstrating improved production efficiency and cost-effectiveness compared to similar strains, while maintaining the nutritional and physiological benefits associated with lactic acid bacteria.

Implementation Method 1

Lactic acid bacteria (LAB) are a general term of a kind of bacteria that can produce a large amount of lactic acid by using fermentable carbohydrates. The Lactic acid bacteria can decompose lactose into glucose and galactose, and the glucose is transformed into small molecular compounds, such as lactic acid, by fermentation

Methodology Applied
Scientific EffectFermentation: Fermentation

Data Source

PatentUS12037627B2Lactobacillus paracasei and uses thereof
Publication Date: 2024.07.16 CHINA NAT RES INST OF FOOD & FERMENTATION IND CO LTD

AI summary

A Lactobacillus paracasei and uses thereof. The Lactobacillus paracasei has a deposit number of CGMCC No. 14813. The Lactobacillus paracasei can be used for increasing the amount of an organic acid in a raw material. The Lactobacillus paracasei can be used for fermenting the raw material, where the raw material can be selected from at least one of fruits, which can increase the content of the organic acid in a fermented product.