Microbial Consortium for Regulating Cocoa Fermentation
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Solution Overview
Problem
The spontaneous cocoa fermentation process is inhomogeneous and difficult to control, leading to variations in microbial counts and species composition, resulting in inconsistent quality of cocoa beans due to factors like country, farm, and environmental conditions, causing taste issues and variability in cocoa products.
Innovation Solution
A microbial composition comprising at least three Lactobacillus species and one Acetobacter species, specifically Lactobacillus plantarum, Lactobacillus fermentum, and Acetobacter pasteurianus, along with additional Lactobacillus species and a yeast species like Saccharomyces cerevisiae, is used to regulate the fermentation of cocoa beans, providing a controlled fermentation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If spontaneous fermentation is used, then the process is simple and natural, but the quality consistency and microbial control are poor
Solution Approach 1:
The patent applies preliminary action by pre-selecting and combining specific microorganisms (Saccharomyces cerevisiae, Lactobacillus plantarum, Lactobacillus fermentum, and Acetobacter pasteurianus) into a defined consortium before fermentation. This pre-established microbial community ensures consistent metabolic activities and quality outcomes, resolving the contradiction between process simplicity and quality consistency by preparing the microbial system in advance rather than relying on spontaneous, uncontrolled microbial growth
Solution Approach 2:
The patent changes the microbial composition parameter by defining specific ratios and types of microorganisms in the fermentation consortium. By controlling the microbial population structure (parameter change), the process achieves both simplicity in application and precision in quality output, as the defined microbial parameters ensure reproducible fermentation results across different batches
2Quantity of substance
If spontaneous fermentation is used, then no additional inputs are required, but the fermentation time and process control are difficult
Solution Approach 1:
The patent uses preliminary action by pre-culturing and combining specific microorganisms into a ready-to-use consortium that can be directly applied to fermentation. This pre-prepared microbial mixture eliminates the need for monitoring spontaneous microbial growth stages and accelerates the fermentation process by ensuring immediate presence of all necessary microbial functions from the start
Solution Approach 2:
The patent ensures continuity of useful action by designing a microbial consortium where each organism performs its function continuously and synergistically throughout fermentation. The defined community maintains steady metabolic activities (sugar consumption, acid production, aroma development) without interruption or stagnation, improving fermentation speed and reliability compared to spontaneous processes
3Adaptability or versatility
If spontaneous fermentation is used, then the process is natural, but the microbial succession and metabolite production are variable
Solution Approach 1:
The patent changes the microbial composition parameter by defining specific ratios and types of microorganisms in the fermentation consortium. By controlling the microbial population structure (parameter change), the process achieves both simplicity in application and precision in quality output, as the defined microbial parameters ensure reproducible fermentation results across different batches
Solution Approach 2:
The patent applies composite materials principle by creating a composite microbial consortium that combines multiple species with complementary functions. This composite community (Saccharomyces for alcohol production, Lactobacillus for lactic acid, Acetobacter for acetic acid) works synergistically to produce consistent metabolites, resolving the contradiction between adaptability and reliability by designing a structured multi-component system
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
This approach results in fermented cocoa beans with improved consistency, a lighter color, higher polyphenol content, and enhanced organoleptic properties, allowing for faster and more reproducible fermentation, which can produce high-quality chocolate with better processing efficiency and reduced defects.
Implementation Method 1
LAB convert sugars and organic acids into lactic acid
Implementation Method 2
AAB start to develop and oxidize the ethanol initially produced by the yeasts to acetic acid
Implementation Method 3
The yeasts depectinise the pulp and produce ethanol from sugars and citric acid under anaerobic conditions
Data Source
AI summary
The invention relates to the use of a microbial composition for regulating the fermentation of such materials, in particular using compositions comprising specific combinations of microorganisms including at least three Lactobacillus species and a yeast species. The present invention further relates to a method for regulating fermentation of cocoa material, such as beans and/or pulp by using a microbial composition as defined herein, and to the fermented cocoa material thereby obtained. The invention also relates to the use of the obtained fermented cocoa material for the preparation of cocoa products and products derived therefrom, including chocolate. The present invention further relates to a method for downstream processing of cocoa beans that have been fermented with a microbial composition as defined herein, and to the downstream products thereby obtained.