Acid-Adapted Bacteria Production for Food Viability
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Solution Overview
Problem
Existing methods for producing bacteria for food products, particularly those with low pH, face challenges in achieving high yields of viable bacteria while maintaining flavor and preventing gas production, which affects the shelf-life and consumer acceptance of these products.
Innovation Solution
A method involving inoculating bacteria in an acidified medium, maintaining a first pH between 3 and 7, allowing the medium to acidify to a second lower pH, and harvesting the bacteria, which enhances bacterial viability and adaptability to acidic environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bacteria are cultured in acidic medium to improve viability in low pH food products, then bacterial survival rate is improved, but gas production and off-flavor increase
Solution Approach 1:
The patent applies parameter changes by implementing a two-stage pH control strategy: first cultivating bacteria at neutral pH (7.0-7.5) to establish healthy growth, then transitioning to acidic pH (3.0-4.0) to select for acid-tolerant strains. This controlled parameter variation improves bacterial viability in acidic foods while preventing gas production and off-flavor through selective pressure.
Solution Approach 2:
The patent converts the harmful effect of acid stress during cultivation into a beneficial selection mechanism. By subjecting bacteria to acidic conditions, the method selects for acid-tolerant strains that survive better in acidic food products, transforming the potentially harmful acid environment into a beneficial selection pressure that improves overall bacterial viability.
2Object-generated harmful factors
If additives are used to remove bacteriostatic components or reduce false taste, then product taste is improved, but production cost increases
Solution Approach 1:
The patent applies self-service by enabling the bacterial culture itself to prevent false taste and gas production through its own physiological adaptation to acidic conditions. The acid-adapted bacteria naturally produce fewer off-flavors and gases, eliminating the need for external additives to mask or remove these unwanted byproducts, thereby reducing production costs.
Solution Approach 2:
The patent extracts the problem of false taste and gas production at its source by selecting bacteria that inherently produce fewer of these unwanted byproducts through acid adaptation. This removes the need for subsequent additive treatment steps, simplifying the manufacturing process and reducing costs.
3Quantity of substance
If high concentration of probiotics is added to achieve clinical efficacy, then health benefits are improved, but bacterial survival in acidic environment decreases
Solution Approach 1:
The patent applies preliminary action by pre-adapting bacteria to acidic conditions before they are added to acidic food products. This preliminary acid adaptation training enables the bacteria to survive and maintain viability in the acidic environment, ensuring that high concentrations of probiotics can be effectively delivered to consumers without significant mortality.
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 significantly increases the viability of bacteria in acidic food products, extending the range of beverages that can be prepared and ensuring a high yield of live cells with improved survival rates during storage, thus enhancing the shelf-life and consumer appeal of these products.
Implementation Method 1
inoculating bacteria in a medium which medium is acidified
Data Source
AI summary
The present invention relates to methods for producing bacteria, designed to enhance the bacteria by subjecting them to stress conditions. The invention also relates to use of the produced bacteria for the preparation of food products.