Encapsulated Leavening Agents for Refrigerated Dough Stability
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Solution Overview
Problem
Chemically-leavened, non-developed doughs face challenges in maintaining stability and desirable properties during refrigerated storage, such as excessive leavening, discoloration, and reduced organoleptic qualities, due to premature reactions of chemical leavening agents, which affect density, taste, texture, aroma, and browning.
Innovation Solution
The use of encapsulated basic chemical leavening agents with a high degree of encapsulation, in combination with acidic leavening agents like sodium aluminum phosphate, to control pH and delay the release of leavening gases, ensuring a neutral pH and stable carbon dioxide production, along with packaging in low-pressure flexible containers to prevent excessive pressure buildup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chemical leavening agents are used in refrigerated dough, then leavening gas is produced, but premature reaction occurs during storage causing excessive leavening and density changes
Solution Approach 1:
The basic chemical leavening agent is segmented into encapsulated particles, where each particle contains the basic agent isolated from direct contact with the acidic agent. This segmentation prevents premature reaction during refrigerated storage while allowing controlled gas production during baking, resolving the contradiction between storage stability and reliable leavening.
Solution Approach 2:
An encapsulating agent acts as an intermediary barrier between the basic chemical leavening agent and the dough environment. This intermediary prevents direct contact and premature reaction with the acidic agent during storage, while still allowing the basic agent to function properly during baking, thus maintaining both storage stability and leavening reliability.
2Reliability
If high degree of encapsulation is used to control leavening agent reaction, then storage stability is improved, but dough pH becomes reduced
Solution Approach 1:
The encapsulating agent is specifically selected to be neutral or basic in nature, which compensates for the pH-reducing effect of the basic leavening agent. By changing the parameter of the encapsulating agent's chemical nature, the dough maintains a neutral pH range (6.5-7.5) during storage while still achieving storage stability through encapsulation.
3Ease of operation
If refrigerated storage is extended for convenience, then use convenience is improved, but organoleptic properties deteriorate due to discoloration and texture changes
Solution Approach 1:
The dough is prepared and packaged in advance with encapsulated leavening agents that prevent premature reaction. This preliminary action allows the dough to be stored for extended periods (up to 12 weeks) without degradation of organoleptic properties, maintaining taste, texture, and appearance comparable to freshly prepared dough while providing consumer convenience.
4Stress or pressure
If low pressure packaging is used, then pressure control is improved, but headspace management becomes challenging
Solution Approach 1:
The internal pressure parameter of the packaging is controlled to remain at or near atmospheric pressure (less than 15 psig) during refrigerated storage. This parameter control prevents excessive pressure buildup from premature gas production, while the flexible packaging design accommodates any minimal gas production, effectively managing headspace without requiring pressurization.
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 refrigerator-stable dough products with consistent leavening, browning, and organoleptic properties during and after refrigerated storage, maintaining desired characteristics for up to 12 weeks without excessive pressure or headspace in packaging.
Implementation Method 1
low solubility chemical leavening agents... can have a reduced tendency to react during storage
Implementation Method 2
a chemically-leavened dough is leavened by the reaction between chemical leavening agents that, when in contact, produce a leavening gas such as carbon dioxide
Implementation Method 3
low pressure package... packaged at an internal pressure of less than 15 psig (pounds per square inch, gauge)
Data Source
AI summary
Described are methods and compositions relating to non-developed dough compositions leavened by chemical leavening systems that include an encapsulated basic chemical leavening agent, wherein the dough composition can be refrigerated in a low pressure package and can exhibit desired browning upon baking.