Processing method for enhancing oil adsorption capacity of asparagus crude fiber powder

By treating the old asparagus stems with a combination of alkaline soaking and enzymatic methods, and utilizing ultra-fine grinding, rehydration, low-temperature treatment, and steam explosion processes, the oil adsorption capacity of the asparagus crude fiber powder was enhanced, solving the problem of developing and utilizing old asparagus stems, and achieving efficient resource utilization and environmental protection.

CN118058473BActive Publication Date: 2026-02-17JINAN INST OF FRUIT PRODS CHINA GENERAL SUPPLY & MARKETING COOP
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Patent Information

Application Number
CN202311529364.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2022-12-08
Filing Date
2023-11-16
Publication Date
2026-02-17
Estimated Expiration
2043-11-16

AI Technical Summary

Technical Problem

The high content of crude fiber in the old stems of asparagus, as well as its poor water retention and oil absorption, restricts its development and utilization. Existing technologies have failed to effectively improve the oil adsorption capacity of asparagus crude fiber.

Method used

The old asparagus stems were treated with a combination of alkaline soaking and enzymatic methods. Subsequently, the crude fiber of the asparagus was modified by processes such as ultra-fine grinding, rehydration, low-temperature treatment and steam explosion to enhance its oil adsorption capacity.

Benefits of technology

It significantly improves the oil adsorption capacity of asparagus crude fiber powder, expands its application range in functional foods, improves resource utilization and reduces environmental pollution.

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Abstract

The application belongs to the technical field of asparagus rough fiber modification, and particularly relates to a processing method for enhancing the oil adsorption capacity of asparagus rough fiber powder. The asparagus rough fiber in asparagus old stem waste is obtained by alkali leaching combined with treatment of two enzyme preparations, and then the obtained asparagus rough fiber is subjected to ultramicro-pulverization, rehydration, step-by-step low-temperature treatment, steam explosion treatment, and finally hot air microwave combined drying treatment for modification. After the above operation and treatment, the water holding property and oil adsorption capacity of the asparagus rough fiber powder are significantly improved compared with those before modification, which not only effectively solves the problem of processing and utilization of asparagus old stem and other high-rough-fiber-content waste resources, but also improves the added value of the asparagus rough fiber and expands the application range thereof.
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