Two-Step Probiotic Fermentation for Polysaccharide Bioavailability
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Solution Overview
Problem
Current fermentation processes for food production are uncontrolled, leading to inconsistent metabolite production and flavor development, making them unsuitable for industrial-scale production due to regulatory and safety concerns, and the selection of starter strains focuses on technological features rather than consumer benefits.
Innovation Solution
A two-step fermentation process using a specifically selected bacterial blend of Lactobacillus gasseri, Lactobacillus rhamnosus, and Bifidobacterium breve, followed by inactivation of bacterial cells, to produce a fermented food product that enhances nutritional value and reduces antinutrients, with applications in food and supplements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If spontaneous microbial communities are used for fermentation, then the ability to fully utilize the substrate is improved, but the process becomes uncontrolled and unsuitable for industrial production
Solution Approach 1:
The spontaneous microbial community is segmented into individual pure strains (Lactobacillus gasseri, Lactobacillus rhamnosus, and Bifidobacterium breve), which are then recombined in a controlled consortium. This allows maintaining the functional benefits of diverse microorganisms while enabling industrial-scale control and consistency.
Solution Approach 2:
The invention changes the parameter of microbial composition from uncontrolled natural communities to a defined consortium with specific strain ratios. The fermentation conditions (pH 5.5-6.5, temperature 30-37°C, anaerobic atmosphere) are also precisely controlled to ensure reproducible results suitable for industrial production.
2Duration of action of stationary object
If natural fermentation processes are used, then shelf-life extension is achieved, but metabolite production and flavor development cannot be controlled
Solution Approach 1:
The fermentation process is segmented into two distinct stages: first with Lactobacillus strains to establish acidification and shelf-life, then with Bifidobacterium breve to produce specific metabolites and flavors. This sequential approach allows control over both preservation and quality attributes.
Solution Approach 2:
The Lactobacillus strains perform preliminary acidification of the substrate before Bifidobacterium breve is introduced. This preliminary action creates optimal conditions (lower pH, modified substrate composition) that enhance the subsequent metabolite production while ensuring shelf-life extension has already been established.
3Productivity
If starter strains are selected for technological features, then fermentative performance is improved, but consumer benefits are not optimized
Solution Approach 1:
The selection criteria for starter strains are changed from purely technological parameters (fermentation speed, substrate degradation) to include consumer-benefit parameters (probiotic viability, metabolite production, gut health effects). The chosen strains are specifically selected for their proven benefits to human health while maintaining good fermentative performance.
Solution Approach 2:
The invention creates a composite microbial system combining strains with complementary functions: Lactobacillus strains for acidification and shelf-life, and Bifidobacterium breve for probiotic benefits and metabolite production. This composite approach ensures both technological performance and consumer health benefits are optimized simultaneously.
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 process results in improved digestibility and bioavailability of nutrients, stimulates beneficial gut bacteria, and reduces harmful substances, providing specific health benefits for consumers, particularly in weaning babies and elderly individuals.
Implementation Method 1
Fermentation is known to improve the nutritional value of the original substrate... Fermentation processes are based, especially for traditional food, on the activity of spontaneous communities of bacteria, fungi and yeast
Implementation Method 2
final inactivation of the bacterial cells
Data Source
Figure 1
AI summary
A fermented food product or food supplement comprising a vegetable substrate fermented by a probiotic blend is disclosed. The fermented food product or food supplement according to the invention is useful in particular for improving natural maternity, lactation and baby weaning. The invention also discloses a process for the preparation of the fermented food product or food supplement comprising the fermentation of a vegetal substrate with the probiotic blend.