Dual-Atmosphere Food Packaging for Shelf Life and Packet Integrity
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Solution Overview
Problem
Existing food product packaging systems fail to effectively combine modified atmosphere packaging with separate condiment packets, leading to spoilage and reduced shelf life of perishable items, while also risking damage to non-perishable condiments due to exposure to modified atmosphere processes.
Innovation Solution
A food product packaging system with distinct compartments, one for modified atmosphere and one for non-modified atmosphere, allowing perishable items like sandwiches to be stored with condiments, where the modified compartment is sealed to maintain shelf life and the non-modified compartment protects condiments from vacuum exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If modified atmosphere packaging is used for perishable food products, then shelf life is extended, but condiment packets may open or burst due to exposure to the modified atmosphere process
Solution Approach 1:
The packaging is divided into separate compartments: a first compartment for perishable food products that undergoes modified atmosphere packaging, and a second compartment for condiment packets that remains at ambient atmosphere. This segmentation allows each compartment to be treated independently, extending shelf life of perishable items without exposing condiment packets to the modified atmosphere process that could cause them to burst or open.
Solution Approach 2:
The condiment packets are extracted from the modified atmosphere environment and placed in a separate non-modified atmosphere compartment. This removes the harmful influence of the modified atmosphere process from the condiment packets while maintaining it for the perishable food products, resolving the contradiction between extending shelf life and protecting packet integrity.
2Reliability
If condiment packets are packaged separately from perishable food products, then structural damage to condiments is prevented, but shelf life of perishable items is reduced due to non-modified atmosphere packaging
Solution Approach 1:
The packaging combines modified atmosphere packaging for perishable food products with ambient atmosphere packaging for condiment packets within a single integrated structure. This merging allows both packaging requirements to be satisfied simultaneously: the perishable items receive the shelf life extension benefits of modified atmosphere, while the condiment packets remain protected from damage by not being exposed to the modified atmosphere process.
3Device complexity
If a single compartment packaging is used, then device complexity is reduced, but the ability to maintain different atmosphere conditions for different products is lost
Solution Approach 1:
The packaging is segmented into multiple compartments with different atmosphere conditions - a first compartment for modified atmosphere and a second compartment for ambient atmosphere. This segmentation enables the packaging to adapt to different product requirements while maintaining a relatively simple overall structure, resolving the contradiction between complexity and versatility.
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
Extends the shelf life of perishable items by maintaining optimal atmosphere conditions while preventing structural damage to non-perishable condiments, offering a cost-effective and durable solution with improved aesthetic appearance.
Implementation Method 1
Modified atmosphere is the practice of modifying the composition of the internal atmosphere of a package (commonly food packages, drugs, etc.) in order to improve the shelf life. The modification process generally lowers the amount of oxygen in the headspace of the package. Oxygen can be replaced with nitrogen, a comparatively inert gas, or carbon dioxide.
Implementation Method 2
From a microbiological aspect, oxygen encourages the growth of aerobic spoilage microorganisms. Therefore, the reduction of oxygen and its replacement with other gases can reduce or delay oxidation reactions and microbiological spoilage.
Implementation Method 3
A food product packaging according to the invention comprises a modified atmosphere compartment and a non-modified atmosphere compartment. The non-modified atmosphere compartment is not subjected to the modified atmosphere process, thereby protecting condiments from vacuum exposure and structural damage.
Data Source
Figure 1
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AI summary
Food products can be stored and sold in packaging. For example, a perishable food product can be stored in a first compartment of a packaging, and a second food product can be stored in a second compartment. The first compartment can include a modified atmosphere to increase the shelf life of the food product in the first compartment. The second compartment can be under normal atmosphere. This allows a more perishable food product to be stored in the first compartment, and a prepackaged, or otherwise less perishable food product to be separately stored in the second compartment, while extending the shelf life of the food products. The first product could be a sandwich, and the second product be one or more condiments for the sandwich.