A steeping process for extracting corn starch

By introducing Bacillus coagulans and Lactobacillus plantarum subspecies bacterial solutions with sulfite into the corn starch extraction soaking process, the problems of long soaking time and nutrient destruction have been solved, achieving more efficient and environmentally friendly starch production.

CN122255307APending Publication Date: 2026-06-23HULUNBEIER NORTHEAST FUFENG BIOTECHNOLOGIES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HULUNBEIER NORTHEAST FUFENG BIOTECHNOLOGIES CO LTD
Filing Date
2026-04-29
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing corn starch extraction and soaking processes suffer from problems such as long soaking cycles, difficulty in wastewater treatment, and damage to nutrients, which limit production efficiency and increase environmental pressure.

Method used

By utilizing the synergistic effect of sulfurous acid solution and specific compound bacteria, and by inoculating Bacillus coagulans and Lactobacillus plantarum subspecies bacterial solutions, the soaking process was optimized, the soaking time was shortened, and the sulfurous acid concentration was reduced. Metabolites such as lactic acid were used to lower the pH value, enhance the protein decomposition capacity, and inhibit the growth of miscellaneous bacteria.

Benefits of technology

It shortens soaking time by more than 10%, reduces sulfurous acid residue, improves the retention of starch nutrients, enhances starch quality, and optimizes production efficiency and environmental performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application belongs to the technical field of biotechnology, and discloses a soaking process for extracting corn starch, which comprises the following steps: corn kernels are mixed with a sulfurous acid solution in a weight ratio of 1:1-5 for soaking, and then inoculated with bacterial liquid, and the soaking time is 40-60 h. Compared with the traditional process, the sulfurous acid-composite bacteria soaking process can not only reduce the soaking time and the use concentration of sulfurous acid, relieve the environmental protection pressure, but also improve the starch quality.
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