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Method for preparing high activity alfalfa food fiber

A dietary fiber and high-activity technology, which is applied in food preparation, food science, application, etc., can solve the problems of the development and production of high-activity alfalfa fiber, so as to improve the technological content and economic added value, expand new application fields, The effect of shortening the gap

Inactive Publication Date: 2005-03-02
张宁生
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  • Summary
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

At present, my country has successfully developed high-activity sugarcane fiber, rice bran fiber and sugar beet fiber by using twin-screw extrusion technology, but there is no development and production of high-activity alfalfa fiber.

Method used

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  • Method for preparing high activity alfalfa food fiber

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0026] 1. Preparation of alfalfa leaf residue

[0027] Select fresh and tender alfalfa stems and leaves, roughly crush them with a pulverizer to a particle size of 2-4 mm, add appropriate amount of water to beat three times, and then press through a screw press unit to separate the alfalfa leaf residue, which contains more than 75% of the total dietary fiber content. The basic component is fiber, including cellulose, hemicellulose and lignin.

[0028] 2. Pretreatment of alfalfa leaf residue

[0029] Soaking and rinsing: After the fresh stems and leaves are separated by pressing, the leaf dregs must first be soaked and rinsed to soften the fibers, and at the same time wash off the residual soluble impurities on the surface of the leaf dregs, and control the concentration of the leaf dregs within the range of 12-20%. Careful control, water temperature 36 ~ 40 ℃, time 1.5 ~ 2h is appropriate.

[0030] Removal of grassy smell: the method of cooking with alkali is used to remove ...

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Abstract

The present invention utilizes extrusion and steaming technology and superfine crushing technology in denaturing treatment of alfalfa food fiber. Especially, the screw structure in the double screw extruder is improved from available four section structure into six section distribution structure including material feeding section, smelting section, the first extruding section, homogenizing section, the second extruding section and reverse retarding section. The said technology can obtain alfalfa food fiber with high physiological activity and raise the technological stability of double screw extruder.

Description

technical field [0001] The invention relates to a preparation method of highly active alfalfa dietary fiber. Background technique [0002] Dietary fiber is an assembly of polysaccharide carbohydrates and lignin that is not digested and absorbed by the human body. According to its solubility, it can be divided into water-soluble dietary fiber and water-insoluble fiber. A large number of factual studies have proved that dietary fiber has strong retarding oil, water holding capacity, compatibilization and inducing microorganisms, can chelate toxic substances such as cholesterol and heavy metals in the digestive tract, reduce the production of carcinogens and promote intestinal peristalsis , is conducive to the excretion of feces, has extremely important physiological functions for the human body, and is called the "seventh largest nutrient". [0003] So far, the relationship between the chemical composition, physicochemical properties and physiological functions of dietary fib...

Claims

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Application Information

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IPC IPC(8): A23L33/22
Inventor 张宁生
Owner 张宁生
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