Non-digestible Hydroxypropyl Starch Hydrolysate Production
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Solution Overview
Problem
Existing hydroxypropyl starch hydrolysates contain digestible components, limiting their effectiveness as low-calorie dietary fibers.
Innovation Solution
Hydrolyzing hydroxypropyl starch with specific degree of substitution using α-amylase and glucoamylase, followed by glucose removal through chromatographic or membrane fractionation, results in a non-digestible hydroxypropyl starch hydrolysate with high dietary fiber content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If hydroxypropyl starch is hydrolyzed with enzyme or acid to obtain hydrolysate, then the hydrolysate can be produced as a sugar substitute, but the hydrolysate contains many digestible components and cannot serve as effective low calorie dietary fiber
Solution Approach 1:
The patent applies extraction by removing glucose (digestible component) from the hydrolysate mixture through chromatographic fractionation or membrane fractionation. This separates the desired non-digestible dietary fiber components from the harmful digestible glucose, achieving high purity non-digestible hydroxypropyl starch hydrolysate with dietary fiber content of 80% or more and glucose content of less than 5% by mass
Solution Approach 2:
The patent controls the degree of substitution parameter of hydroxypropyl starch within 0.05 to 0.4 to optimize the balance between digestibility resistance and hydrolysis efficiency. This parameter control ensures the hydrolysate maintains non-digestible properties while allowing effective separation of digestible components
2Ease of manufacture
If conventional hydrolysis methods are used to produce hydroxypropyl starch hydrolysate, then the production process is simple, but the product contains digestible components that limit its effectiveness as dietary fiber
Solution Approach 1:
The patent introduces chromatographic fractionation or membrane fractionation as an intermediary separation step between hydrolysis and final product formation. This intermediary process effectively removes digestible glucose while preserving non-digestible dietary fiber components, transforming a simple but impure process into a refined purification sequence that maintains ease of manufacture while achieving high purity
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 process produces a water-soluble dietary fiber with low viscosity, non-retrogradation, and high moisture retention, suitable for various food and cosmetic applications.
Implementation Method 1
hydrolyzing the hydroxypropyl starch having a specific degree of substitution using an α-amylase, and then a glucoamylase
Implementation Method 2
removing glucose by a procedure, such as chromatographic fractionation or membrane fractionation
Implementation Method 3
removing glucose by a procedure, such as chromatographic fractionation or membrane fractionation
Data Source
AI summary
The present invention provides a non-digestible hydroxypropyl starch hydrolysate which can be used as novel water soluble dietary fiber, a method for producing it, as well as food products and beverages containing the non-digestible hydroxypropyl starch hydrolysate. The present invention provides the non-digestible hydroxypropyl starch hydrolysate characterized by having a DE value of less than 20 and a glucose content of less than 3% by mass; food products and beverages containing it; and the method for producing the non-digestible hydroxypropyl starch hydrolysate comprising the steps of: (A) hydrolyzing a hydroxypropyl starch with a degree of substitution of 0.05 to 0.4 with α-amylase and then with glucoamylase; and (B) removing glucose from the hydrolysate obtained in the step (A).