Lupin Seed Fiber Thermal Modification for Creamy Mouthfeel
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Solution Overview
Problem
Native lupine fibers from cotyledons exhibit strong oil and fat binding properties, leading to a rough and drier mouthfeel in low-fat foods, reducing enjoyment value.
Innovation Solution
Thermal modification of lupine fiber particles by heating above 130°C, combined with mechanical comminution and aqueous extraction processes, reduces the surface porosity and sharpness of cell walls, resulting in a fiber preparation with decreased fat-binding capacity and a creamier mouthfeel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If native lupine fibers from cotyledons are used, then oil and fat binding properties are improved, but mouthfeel quality deteriorates
Solution Approach 1:
The patent applies thermal treatment at temperatures of 130°C or higher to modify the physical and chemical parameters of lupine fiber particles. This heat treatment alters the cell wall structure, reducing surface porosity and changing the fiber's oil binding characteristics while improving mouthfeel properties in low-fat food applications.
2Reliability
If freeze-dried fiber preparations with high porosity are used, then oil binding capacity is improved, but bulk density deteriorates
Solution Approach 1:
The patent employs thermal treatment at elevated temperatures (130°C or higher) to fundamentally change the physical parameters of the fiber particles. This heat-induced modification reduces surface porosity and increases bulk density while maintaining adequate oil binding capacity, thereby resolving the contradiction between these two properties.
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 modified fiber preparation enhances the enjoyment value of low-fat foods by providing a softer, creamier texture while maintaining nutritional benefits, with increased bulk density and reduced oil binding properties.
Implementation Method 1
Thermal modification of lupine fiber particles by heating above 130°C, combined with mechanical comminution and aqueous extraction processes, reduces the surface porosity and sharpness of cell walls
Implementation Method 2
mechanical comminution and aqueous extraction processes, reduces the surface porosity and sharpness of cell walls
Implementation Method 3
mechanical comminution and aqueous extraction processes, reduces the surface porosity and sharpness of cell walls
Implementation Method 4
these fiber preparations are able to firmly bind non-polar substances such as oil and fat in the form of fine droplets or particles with the help of pronounced adhesive and capillary forces
Implementation Method 5
these fiber preparations are able to firmly bind non-polar substances such as oil and fat in the form of fine droplets or particles with the help of pronounced adhesive and capillary forces
Data Source
Figure 1~2
Figure 3
AI summary
The present invention relates to a fiber preparation made from lupin seeds, containing fiber particles from the cotyledons of the lupin seeds. The fiber preparation is characterized by the fact that at least 10% of the surface area of the fiber particles in the preparation no longer has exposed edges or modified cell walls that have a wall thickness of > 5 µm at their exposed edges. These properties can be achieved, for example, by using temperatures above 100°C during the drying of the fiber preparation. The fiber preparation exhibits reduced fat-binding properties and produces a softer, creamier mouthfeel, particularly in reduced-fat foods, than many previously known fiber preparations made from lupin seeds.