Probiotic Fruit Snack Moisture Barrier Layer
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Solution Overview
Problem
Current food products with probiotic cultures have limited shelf life and require refrigeration, making them unsuitable for a mobile and active lifestyle, and existing products with low moisture content lack mass appeal and stability.
Innovation Solution
A fruit snack with a high moisture content and probiotic cultures is developed using a manufacturing process that involves creating a center with substantial moisture, applying a barrier layer to prevent moisture migration, and then coating it with an outer layer containing probiotic cultures, allowing the center to cool to room temperature before applying the outer layer to maintain stability and flavor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fermented products with probiotic cultures are produced with high moisture content, then probiotic viability is maintained, but shelf life is reduced and refrigeration is required
Solution Approach 1:
The product is divided into two distinct layers: an inner layer containing probiotic cultures and an outer moisture barrier layer. This segmentation allows the probiotic layer to maintain high moisture content for viability while the barrier layer prevents moisture migration that would otherwise require refrigeration, thereby extending shelf life without compromising probiotic viability.
Solution Approach 2:
A moisture barrier layer acts as an intermediary between the probiotic-containing inner layer and the external environment. This barrier layer prevents moisture migration from the inner layer to the outer layer, enabling the product to remain stable at room temperature while maintaining probiotic viability in the inner layer.
2Duration of action of stationary object
If fermented products are refrigerated to extend shelf life, then product stability is improved, but convenience for mobile lifestyle is reduced
Solution Approach 1:
By segmenting the product into a probiotic inner layer and a moisture barrier outer layer, the invention enables room temperature stability without refrigeration. This eliminates the need for cold chain logistics and refrigeration during consumption, significantly improving convenience for mobile and active lifestyles while maintaining extended shelf life.
Solution Approach 2:
The invention changes the moisture content parameter of the outer layer by creating a moisture barrier that prevents moisture migration. This parameter change allows the product to remain stable at room temperature rather than requiring refrigeration, thereby improving convenience without sacrificing shelf life.
3Duration of action of stationary object
If existing probiotic products are made with low moisture content for stability, then shelf life is extended, but mass appeal is reduced
Solution Approach 1:
The product is segmented into an inner layer with high moisture content (60-80%) containing probiotic cultures and an outer layer with moisture barrier properties. This segmentation allows the inner layer to maintain the high moisture content necessary for probiotic viability and mass appeal, while the outer layer provides the stability and extended shelf life typically associated with low moisture products.
Solution Approach 2:
The invention uses a composite structure combining two different material layers: an inner layer made of fermented food material with high moisture content for probiotic viability and consumer appeal, and an outer layer with moisture barrier properties for stability and extended shelf life. This composite approach allows both high moisture content and long shelf life to coexist.
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 fruit snack maintains viability of probiotic bacteria and flavor for an extended period at room temperature, offering a convenient and palatable product that can be produced using traditional methods like starch molding or extrusion, ensuring the benefits of probiotics are preserved.
Implementation Method 1
applying a barrier layer to the center of the food product, the barrier layer adapted to substantially prevent migration of moisture from the center of the food product
Implementation Method 2
applying an outer layer over the barrier layer applied to the center of the food product, the outer layer containing probiotic cultures
Data Source
AI summary
A fruit snack with probiotics that is stable at room temperature is manufactured by combining various ingredients including fruit juices/purees to produce a slurry and cooking the slurry to produce a center that contains a high moisture content. The fruit snack center is covered with a barrier layer which in turn is covered by an outer layer that contains heat sensitive ingredients, such as probiotic cultures. The barrier layer substantially prevents migration of moisture from the center to the outer layer, and the fruit snack is cooled prior to applying the outer layer to minimize damage/harm to the heat sensitive ingredients. In addition to including probiotic cultures and being stable at room temperature, the fruit snack has other desirable characteristics including a chewy soft texture and fruit-flavorings, and may be manufactured using traditional processes.