Potato-Based Artificial Rice Texture and Nutrition via Twin-Screw Extrusion
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Solution Overview
Problem
Current artificial rice products have limitations such as low resistant starch content, poor digestion resistance, short shelf life, and incomplete nutritional composition, which are not adequately addressed by existing technologies.
Innovation Solution
A potato-based nutritional artificial rice formula is developed, incorporating 70-90% rice powder, 10-30% potato whole powder, 0.1-1% sucrose ester, 0.01-0.1% yeast β-glucan, and 0.1-1% sodium alginate, using double pre-curing technology and twin-screw extrusion to enhance texture, nutritional content, and shelf life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional artificial rice is made with limited ingredients, then manufacturing is simple, but nutritional completeness is poor
Solution Approach 1:
The patent combines multiple natural ingredients (mushroom powder, cordyceps sinensis, yam powder, sweet potato powder, brown rice powder, red bean powder, and rice powder) to create a composite artificial rice formulation. This composite approach achieves nutritional completeness by integrating diverse nutrients from different sources while maintaining a manageable manufacturing process through standardized mixing ratios.
2Reliability
If resistant starch content is increased, then digestion resistance is improved, but shelf life is reduced
Solution Approach 1:
The patent optimizes the ratio of resistant starch sources (mushroom powder, cordyceps sinensis, yam powder, sweet potato powder, brown rice powder, red bean powder) to achieve a balance between digestion resistance and shelf life. By controlling the particle size distribution, moisture content, and composition ratios of these ingredients, the formulation maintains high digestion resistance while preventing excessive starch retrogradation that would shorten shelf life.
3Quantity of substance
If more nutritional ingredients are added, then nutritional completeness is improved, but manufacturing complexity increases
Solution Approach 1:
The patent divides the artificial rice formulation into distinct functional components: starch sources (rice powder, potato powder), nutritional supplements (mushroom powder, cordyceps sinensis, yam powder, sweet potato powder, brown rice powder, red bean powder), and binding agents. Each component serves a specific nutritional or functional purpose, allowing for systematic manufacturing while achieving comprehensive nutrition.
4Ease of operation
If artificial rice texture is improved to match natural rice, then consumer acceptance is increased, but production cost is increased
Solution Approach 1:
The patent uses different ingredients with specific textures to replicate various aspects of natural rice quality. Mushroom powder, cordyceps sinensis, and yam powder contribute to umami flavor and mouthfeel, while brown rice powder and red bean powder provide granular texture. This localized quality enhancement in specific components achieves overall natural rice-like characteristics without requiring expensive processing for all 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 solution significantly improves the anti-regeneration properties, nutritional completeness, and texture of artificial rice, extending shelf life and making it more comparable to natural rice in appearance and taste.
Implementation Method 1
The mixture material is fed into a twin-screw extruder for molding and granulating, in which working temperatures of cavities of respective sections of the twin-screw extruder are as follows: 50-70°C in a section I, 80-100°C in a section II, 120-140°C in a section III, 110-120°C in a section IV, and 25-40°C in a section V
Implementation Method 2
after the drying, the potato-based nutritional artificial rice is obtained
Data Source
Figure 1~2
Figure 3
AI summary
A potato-based nutritional artificial rice formula and a preparation method thereof. Sucrose ester, sodium alginate, and yeast β-glucan are added to regulate texture of the artificial rice. The tempered mixture materials are fed into a twin-screw extruder via a feeder. The twin-screw extruder is divided into five heating sections and has a screw with a length-to-diameter ratio of 16:1-28:1. Working temperatures of cavities of respective sections of the twin-screw extruder are as follows: 50-70°C in a section I, 80-100°C in a section II, 120-140°C in a section III, 110-120°C in a section IV, and 25-40°C in a section V. A rotation speed of the screw is 200-300 rpm. The materials are conveyed, extruded, and cured through the twin-screw extruder to form gel granules, and the gel granules are extruded and molded through a die having a circular molding hole diameter of 1-6 mm to obtain artificial rice. Whole potato powder has a reduced viscosity after being pre-treated by cooking, and the whole potato powder is in a low gelatinization state, thereby obtaining the artificial rice having better anti-retrogradation properties, abundant nutrition, and excellent texture.