Reduced-Fat Farinaceous Product via Partial Frying and Coating
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Solution Overview
Problem
Existing methods for preparing ready-to-eat farinaceous products fail to replicate the sensory properties of fried products while significantly reducing fat content, resulting in sub-optimal appearance and taste.
Innovation Solution
A method involving partial frying of farinaceous dough pieces with 30-60% of the surface area contacted with hot oil for at least 10 seconds, followed by baking, and applying a layer of edible material to 40-70% of the surface area, where the uncovered surface is fried, minimizing fat uptake without compromising product quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If fully fried farinaceous products are prepared, then sensory properties (crispy crust, distinct taste) are improved, but fat content increases significantly
Solution Approach 1:
The doughnut surface is segmented into two distinct zones: a fried zone (30-60% of surface area) that contacts hot oil to develop crispy texture and flavor, and a non-fried zone that remains uncovered to minimize fat absorption. This spatial segmentation allows simultaneous achievement of sensory quality and reduced fat content
Solution Approach 2:
Different surface regions are assigned different functional qualities: the fried zone receives oil treatment for crispy texture and characteristic flavor, while the non-fried zone maintains a softer texture and absorbs less fat. The edible material layer is applied selectively to enhance the non-fried zone's appeal while preserving the functional benefits of both zones
2Quantity of substance
If fat content is reduced in fried farinaceous products, then nutritional quality is improved, but sensory properties (appearance and taste) deteriorate
Solution Approach 1:
The edible material layer (glaze, chocolate, or other coatings) is applied to the non-fried zone to provide visual appeal, sweetness, and textural contrast. This localized enhancement compensates for the reduced fat content in that area while maintaining overall product attractiveness and flavor profile
Solution Approach 2:
Instead of completely avoiding oil treatment, the method applies partial frying to 30-60% of the surface area. This partial action is sufficient to develop the characteristic fried sensory properties in that zone while limiting overall fat absorption. The edible material layer further enhances the product's sensory qualities without requiring complete frying of the entire surface
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 method achieves a substantial reduction in fat content while maintaining sensory properties comparable to fried products, as demonstrated by the example of reduced-fat glazed doughnuts with a fat content of about 7 wt.%, comparable to fully fried counterparts.
Implementation Method 1
contacting 30-60% of the total surface area of the one or more shaped dough pieces with hot oil during a period of at least 10 seconds to produce one or more partially fried dough pieces
Implementation Method 2
baking said one or more partially fried dough pieces to produce one or more baked dough pieces
Data Source
AI summary
The invention provides a method of preparing a ready-to-eat farinaceous food product, said method comprising the successive steps of: a)preparing a farinaceous dough by mixing flour, water and optionally one or more other bakery ingredients; b)dividing the dough into one or more dough portions; c)shaping the one or more dough portions into one or more shaped dough pieces; d)proving the dough pieces; e)contacting 30-60% of the total surface area of the one or more shaped dough pieces with hot oil during a period of at least 10 seconds to produce one or more partially fried dough pieces comprising a fried surface area and a non-fried surface area; and f)baking said one or more partially fried dough pieces to produce one or more baked dough pieces; where in a layer of edible material is applied to 40-70% of the surface area of the shaped dough pieces, the partially fried dough pieces or the baked dough pieces and wherein the surface area of the final ready-to-eat product that is not covered by the layer of edible material is fried surface area. This method achieves a significant reduction in fat uptake during preparation of the ready-to-eat farinaceous product without introducing a perceptible adverse effect on product quality. Another aspect of the invention relates to ready-to-eat food product comprising a body of baked farinaceous dough, 40-70% of the surface area of said body of baked dough being coated with a layer of edible material, wherein the surface of the baked dough body that is not coated with the layer of edible material is fried surface area and wherein at least 70 wt.% of the surface of the baked dough body that is covered with the layer of edible material is non-fried.