Whole Grain Snack Texture via Starch and Emulsifier Matrix
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Solution Overview
Problem
Conventional snack foods, such as crackers, are high in fat and refined wheat flour, making them less than ideal as healthy snack options, and none have successfully combined high levels of multi-grain and whole-grain nutrients with a soft, crunchy texture.
Innovation Solution
A method using high amounts of whole grain flours, waxy starch, emulsifiers, potato flakes, and pregelatinized starch to create a soft and crunchy texture in baked snack foods, while maintaining nutritional superiority and adhering to health guidelines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If refined wheat flour and fat are used to create soft, crunchy crackers, then the desired texture is achieved, but the nutritional quality deteriorates with high fat and refined grain content
Solution Approach 1:
The patent uses a composite dough formulation combining whole grain flours (wheat, oats, rice), starches (waxy maize, potato), and emulsifiers (lecithin, mono- and diglycerides) to achieve both nutritional benefits and desired texture. This composite approach allows the snack to maintain soft-crunchy characteristics while being made from healthier whole grain ingredients rather than refined flour and high fat content.
Solution Approach 2:
The patent modifies the chemical composition parameters of the dough by controlling the ratios of whole grain flours (40-70%), starches (10-30%), and emulsifiers (1-5%), along with adjusting water content (20-40%) and baking conditions (temperature 350-450°F, time 5-15 minutes). These parameter changes enable the transformation of whole grain ingredients into a product with cracker-like texture while maintaining nutritional integrity.
2Object-affected harmful factors
If whole grain flours are used to improve nutritional quality, then fiber and vitamin content increases, but the soft, crunchy texture similar to crackers is lost
Solution Approach 1:
The patent introduces emulsifiers (lecithin, mono- and diglycerides) as intermediary substances that mediate between whole grain flours and starches during mixing and baking. These emulsifiers create a matrix that traps steam and maintains air pockets, enabling the dough to achieve and maintain the soft, crunchy cracker texture despite being made from whole grain ingredients which naturally have different textural properties.
Solution Approach 2:
The patent utilizes phase transitions during baking, particularly the gelatinization of starches (waxy maize, potato) and the vaporization of water (20-40% content). As the dough bakes at 350-450°F, water converts to steam, creating air pockets and expanding the structure, while starch gelatinizes to form a gel matrix that sets the soft, crunchy texture. This controlled phase transition is key to achieving cracker-like texture from whole grain ingredients.
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 method results in a healthy, nutritious snack with a soft, crunchy texture similar to crackers, meeting dietary fiber and nutrient requirements while limiting fat, sodium, and saturated fats, and providing a crunchy texture.
Implementation Method 1
Another aspect of the invention involves adding pregelatinized or modified starch, which allows the snack food to expand during cooking and contributes to its crunchy texture
Implementation Method 2
After the dough is cut, the snack pieces are transported towards and through an oven, which reduces the moisture content inside the snack piece. The oven cooks the snack piece and imparts a crunchy texture.
Data Source
AI summary
The present invention discloses a method for making a multi-grain, whole grain baked snack food product with a soft, crunchy texture similar to a cracker. Ingredient formula ranges have been determined that maximize the amount and number of nutritious whole grains present in the snack food, while still keeping the texture soft and crunchy, and the color and flavor acceptable. The ingredients are combined with water to make a dough, which is then sheeted and cut into pieces. The pieces are baked to produce a multi-grain, whole grain baked snack food.