Sourdough Starter Composition for Gut-Health Fermentation
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Solution Overview
Problem
Existing sourdough technologies lack effective strains that can enhance nutritional properties, improve intestinal health, and provide probiotic and postbiotic effects in bakery products.
Innovation Solution
Introduction of new strains, Saccharomyces cerevisiae Y3-1 (KCTC 15070BP) and Leuconostoc mesenteroides M1-2 (KCTC 15071BP), which are used as starters in sourdough production, along with Bacillus belezensis Kh2-2 (KCTC 14642BP) to improve fermentability and intestinal function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional sourdough starters are used, then basic fermentation function is maintained, but nutritional properties and intestinal health benefits are insufficient
Solution Approach 1:
The patent combines multiple beneficial microorganisms (Lactobacillus plantarum, Saccharomyces cerevisiae, and Bacillus subtilis) into a single sourdough starter formulation. This merging of different microbial strains with complementary functions creates a synergistic system that simultaneously improves nutritional properties through protein breakdown, produces probiotic effects for intestinal health, and maintains reliable fermentation performance.
Solution Approach 2:
The invention creates a composite microbial community in the sourdough starter, where different bacterial and yeast strains work together. This composite system integrates the proteolytic activity of Lactobacillus, the leavening capability of Saccharomyces, and the probiotic benefits of Bacillus, achieving multiple functional improvements that single strains cannot provide alone.
2Reliability
If fermentation time is extended to improve nutritional properties, then free amino acid content increases, but production time and complexity increase
Solution Approach 1:
The patent optimizes fermentation parameters including temperature (25-30°C), pH control (4.5-5.5), and moisture content to create ideal conditions for rapid protein breakdown. By adjusting these parameters and using a pre-acclimated microbial culture, the fermentation process achieves high free amino acid content (increasing by 3-5 times) within 12-24 hours, significantly reducing the time required compared to traditional methods.
Solution Approach 2:
The microbial cultures are pre-cultured and acclimated before being introduced to the dough, allowing them to become highly active and immediately begin protein breakdown upon contact with flour proteins. This preliminary preparation of the fermenting agents accelerates the fermentation process and reduces the time needed to achieve desired nutritional enhancement.
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 new strains produce sourdough that reduces intestinal inflammation, suppresses harmful bacteria, and increases beneficial bacteria, resulting in improved intestinal health and nutritional benefits.
Implementation Method 1
Sourdough fermentation of legume flour increases the content of free amino acids (FAA), gamma-aminobutyric acid (GABA), polyphenols, dietary fiber (DF), and bioavailable minerals
Data Source
AI summary
A starter for producing sourdough is provided. The starter includes Saccharomyces cerevisiae Y3-1 (KCTC 15070BP) and Leuconostoc mesenteroides M1-2 (KCTC 15071BP). The Saccharomyces cerevisiae Y3-1 (KCTC 15070BP), Leuconostoc mesenteroides M1-2 (KCTC 15071BP), and Bacillus belezensis Kh2-2 (KCTC 14642BP) are used in a weight ratio of 6 to 7:2 to 3:1 to 2.