Resistant dextrin with high dietary fiber content and preparation method therefor

By using pea starch as raw material and combining liquefaction and molecular rearrangement reactions, a resistant dextrin with high dietary fiber content was prepared, solving the problem of low dietary fiber content in existing technologies and realizing an efficient and low-cost preparation method.

WO2026123555A1 Publication Date: 2026-06-18SHANDONG BAILONG CHUANGYUAN BIO TECH CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
SHANDONG BAILONG CHUANGYUAN BIO TECH CO LTD
Filing Date
2025-04-30
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

Current resistant dextrin production processes have low dietary fiber content and high energy consumption and cost, making it difficult to meet the demand for high dietary fiber content.

⚗Method used

Resistant dextrin was prepared by using pea starch as raw material through liquefaction and molecular rearrangement reaction. The DE value of the liquefaction liquid was controlled at 8-11%. Molecular rearrangement reaction was carried out under acidic conditions, combined with activated carbon decolorization and ion exchange resin desalting, to directly obtain resistant dextrin with high dietary fiber content.

🎯Benefits of technology

The dietary fiber content in resistant dextrin was increased to ≥93%, reducing energy consumption and cost, simplifying the preparation process, and improving starch conversion rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention pertains to the technical field of functional sugars, and specifically relates to a resistant dextrin with a high dietary fiber content and a preparation method therefor. The preparation method of the present invention comprises the following steps: mixing pea starch milk and a liquefying enzyme for liquefaction to obtain a liquefied liquid, with the DE value of the liquefied liquid being 8%-11%; and subjecting the liquefied liquid to a molecular rearrangement reaction under an acidic condition to obtain the resistant dextrin, with the mass content of dietary fiber in the resistant dextrin being ≥ 93%. In the present invention, pea starch is used as a raw material, and after liquefaction, a crude dextrin material liquid (liquefied liquid) with a suitable DE value is easily obtained. In the present invention, the DE value of the liquefied liquid is controlled to be 8%-11%, and the prepared resistant dextrin has a high dietary fiber content and good digestion resistance.
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