Crispy Fruit Snack Dough Moisture Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional fruit-based snacks are difficult to produce with a stable crispy texture that remains unchanged under ambient conditions, as existing drying methods are expensive and result in moisture absorption, while frying increases calorie content and leads to browning.
Innovation Solution
A food product with at least 50% fruit or vegetable content, combined with starch and fat, is formulated to achieve a crispy texture that remains stable by controlling moisture content below 4% and adjusting the glass transition temperature above room temperature, using baking at atmospheric conditions to prevent charring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional drying techniques (freeze drying, vacuum drying) are used to produce crispy fruit snacks, then the product achieves initial crispiness, but the product absorbs moisture quickly after package opening and loses crispiness over time
Solution Approach 1:
The patent changes the moisture content parameter to less than 4% and adjusts the glass transition temperature to above room temperature through specific formulation (50-80% fruit content, starch, fat, and optional emulsifier), enabling the product to maintain crispy texture without rapid moisture absorption after opening
Solution Approach 2:
The patent creates a composite material system combining fruit puree or powder, starch, and fat in specific ratios. This composite formulation achieves both initial crispiness and long-term moisture stability by controlling the glass transition temperature above ambient conditions
2Stability of the object's composition
If frying is used to produce stable crispy texture, then the texture remains stable, but the calorie content increases due to fat absorption
Solution Approach 1:
The patent reduces fat content to 0-10% compared to fried products while achieving texture stability through controlled moisture content (<4%) and glass transition temperature adjustment, significantly reducing calorie content while maintaining texture stability
Solution Approach 2:
The patent replaces expensive and unhealthy frying processes with a simpler, healthier baking or toasting method that achieves similar texture stability without the caloric burden of fat absorption
3Quantity of substance
If high fruit content (typically fructose and glucose) is used in frying or baking, then the product has high nutritional value, but browning and charring occur
Solution Approach 1:
The patent controls moisture content to less than 4% and uses lower temperature processing (baking or toasting instead of high-temperature frying), preventing Maillard reaction and caramelization that cause browning and charring while preserving high fruit content (50-80%)
4Ease of manufacture
If conventional baking is used for high fruit content products, then the product is easier to manufacture, but browning and charring occur due to high natural sugar contents
Solution Approach 1:
The patent extends baking time at lower temperatures or uses toasting methods, maintaining manufacturing simplicity while preventing browning and charring through controlled moisture content (<4%) and adjusted processing parameters
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 product maintains a hard and crispy texture for extended periods without moisture absorption, even after packaging is opened, and can be produced without preservatives, offering a healthier snack option with high fruit content.
Implementation Method 1
removing moisture from the dough to an amount less than 4% by weight to form a crispy textured ambient shelf-stable food product
Implementation Method 2
exhibits reduced moisture uptake such that the food product has a moisture content of less than 7% by weight even after 2 weeks and up to five weeks after exposure to ambient conditions
Data Source
AI summary
A crispy textured ambient shelf-stable food product is formed from a dough that includes at least 50% by weight of a fruit and/or vegetable, starch and fat. The food product has a moisture content of less than 4% by weight and exhibits reduced moisture uptake such that the food product has a moisture content of less than 7% by weight after 2 weeks exposure to ambient conditions of 50% humidity at 23° C.