Active Fermentation Process for Consistent Kombucha Flavor
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Solution Overview
Problem
The conventional fermentation process for Kombucha is inconsistent, time-consuming, and difficult to scale industrially due to variations in taste and quality, with the Kombucha mushroom needing constant replenishment and potential strong acetic or alcohol flavors deterring consumers.
Innovation Solution
A process involving multi-stage active liquid cultures with selected bacterial strains from the genus Acetobacter or Gluconobacter, conducted under controlled aerobic conditions with continuous air ventilation and mixing, to produce a fermented liquid with consistent flavor and nutritional benefits, eliminating the need for a mushroom-like body and reducing fermentation time to under 30 hours.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional fermentation process using Kombucha mushroom is used, then fermented drink can be produced, but the taste and quality vary from batch to batch and production time is long (7 days to 2 weeks)
Solution Approach 1:
The patent extracts and isolates specific bacterial strains (Acetobacter and Gluconobacter) from the conventional Kombucha mushroom symbiosis. By separating these functional bacteria from the complex mushroom structure, the invention achieves consistent fermentation results while significantly reducing production time to under 30 hours.
Solution Approach 2:
The patent changes the fermentation parameters by using pure cultured bacterial strains instead of the conventional Kombucha mushroom. This parameter change enables precise control over fermentation conditions, resulting in consistent taste and quality across batches while accelerating the process from weeks to hours.
2Reliability
If Kombucha mushroom is used for fermentation, then fermented drink can be produced, but the mushroom needs to be constantly replenished and eventually fails to produce consistent flavor
Solution Approach 1:
The patent extracts the functional bacterial components from the Kombucha mushroom structure and uses them as standalone cultured strains. This extraction eliminates the degradation issues of the mushroom while preserving the fermentation functionality, ensuring reliable and consistent flavor production.
Solution Approach 2:
Instead of attempting to reuse and maintain the Kombucha mushroom indefinitely, the patent employs readily available bacterial strains that can be easily cultured and replenished. This approach treats the culture as a renewable resource that can be consistently produced without degradation.
3Productivity
If conventional fermentation process is used, then fermented drink can be produced, but strong acetic or alcohol flavors are generated which deter consumers
Solution Approach 1:
The patent applies different bacterial strains for different fermentation stages or functions. By using Acetobacter for acid production and Gluconobacter for other metabolic functions, the invention achieves balanced flavor profiles that avoid excessive acetic or alcohol notes while maintaining fermentation efficiency.
Solution Approach 2:
The patent changes the microbial composition parameters by using specific bacterial strains with controlled metabolic pathways. This parameter change allows the fermentation process to produce desirable flavors while minimizing the generation of strong acetic or alcohol notes that deter consumers.
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 method ensures consistent, high-quality, and flavorful fermented drinks with enhanced nutritional value, suitable for large-scale industrial production, and minimizes contamination risks, while maintaining the beneficial properties of Kombucha without strong acetic or alcohol flavors.
Implementation Method 1
acetobacters oxidize glucose and fructose to gluconic acid and acetic acid, and oxidize ethanol to acetic acid
Implementation Method 2
yeasts degrade the sugar to glucose and fructose and further ferment them to ethanol
Data Source
Figure 1~2
AI summary
To prepare fermented drinks and products with consistency and ensuring quality and taste in short fermentation cycle, the process of the present invention comprises the steps of separating and selecting a colony of a suitable bacterial strain, preparing a seed liquid from a live culture of the colony, and culturing the seed liquid in a large scale liquid culture. The bacterial strain is of the genus of Acetobacter or Gluconobacter. The seed liquid is prepared by culturing the colony on a slant surface on a solid medium, followed by multi-stage active liquid culture including an initial stage of small scale active liquid culture and at least one enlarged scale active liquid culture.