Rye Flour Dough Composition Using Exogenous Gluten
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Solution Overview
Problem
Rye flour is less suitable for producing bakery products due to its lack of gluten, high endo-amylase activity, and natural acidity, which results in dense, compact, and sour bread with poor volume and stability, requiring combination with wheat flour and use of sourdough for stabilization.
Innovation Solution
A dough composition with a high percentage of rye flour, exogenous gluten, and a leavening agent, optionally including emulsifiers and hydrocolloids, to enhance gluten network formation and starch stability, allowing for the use of yeast and improved bread characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If rye flour is used in high percentage to produce bakery products, then nutritional value and flavor are enhanced, but the products become dense and compact due to lack of gluten
Solution Approach 1:
Wheat gluten is introduced as an intermediary substance that forms a protein network to trap gas bubbles, enabling high rye flour content (80-100%) while maintaining acceptable product volume and texture. The gluten acts as a mediator between the high rye flour content and the desired bakery product characteristics.
Solution Approach 2:
The invention creates a composite dough system combining rye flour, wheat gluten, and optionally wheat starch. This composite material approach allows the dough to benefit from both the nutritional/flavor properties of rye and the structural properties of wheat gluten, achieving a balance between density and volume.
2Quantity of substance
If rye flour is used in high percentage, then nutritional value is enhanced, but starch degradation occurs due to high endo-amylase activity
Solution Approach 1:
Wheat starch is introduced as an intermediary that forms a stable network structure to counteract the degrading effect of rye flour's endo-amylase activity. The wheat starch acts as a stabilizing agent that prevents excessive starch breakdown while allowing the high rye flour content to maintain its nutritional and flavor benefits.
Solution Approach 2:
The invention modifies the chemical environment of the dough by adjusting pH and adding enzymes to control amylase activity. These parameter changes stabilize the starch network while maintaining high rye flour content, preventing excessive starch degradation.
3Stability of the object's composition
If sourdough is used to stabilize rye flour products, then pH is lowered and starch gelatinisation is delayed, but the products develop sour and bitter taste
Solution Approach 1:
The invention extracts and eliminates the sourdough component from the recipe, replacing it with a combination of wheat gluten and wheat starch. This removes the source of unwanted sour and bitter flavors while maintaining the ability to control starch gelatinisation and product stability through the wheat-based additives.
Solution Approach 2:
The invention replaces the complex, time-consuming sourdough fermentation process with simpler, more controllable wheat-based additives (gluten and starch) that provide similar functional benefits without the unwanted flavor development. This substitution uses shorter-lived, more predictable ingredients.
4Strength
If wheat flour is combined with rye flour to improve product characteristics, then volume and texture are improved, but the rye flour content is limited to low percentages
Solution Approach 1:
Instead of limiting rye flour content to achieve good results, the invention inverts the approach by using wheat gluten and wheat starch as functional additives that enable high rye flour content (80-100%). This inversion allows the rye flour percentage to be the primary variable while the wheat-based additives provide the necessary structural support.
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 solution enables the production of rye-based bakery products with improved volume, texture, and stability, comparable to wheat-based products, without the need for sourdough, and allows for higher rye flour content, enhancing nutritional value and flavor.
Implementation Method 1
it does not contain gluten which prevents the formation of a gluten protein network
Implementation Method 2
the formation of a starch network is hampered due to the high endo-amylase activity in rye flour, which results in starch degradation
Implementation Method 3
Another characteristic of rye flour is that it ferments more readily than wheat flour as it contains a greater percentage of natural sugars, diastase and protease enzymes
Implementation Method 4
At lower pH the starch gelatinisation is delayed thereby giving the amylases less time to degrade the starch during baking due to heat denaturation of the amylases
Implementation Method 5
The dough composition may comprise an emulsifier and/or a hydrocolloid
Data Source
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AI summary
A dough is described. The dough has a high percentage of rye flour, as well as gluten and optionally a gluten strengthener and/or an encapsulated acidifier. The use of emulsifiers in the preparation of rye flour doughs is also described.