A kind of method for extracting dietary fiber of Auricularia japonica by alkali method

A technology of dietary fiber and alkaline extraction, applied in food science and other directions, can solve the problems of high cost and low extraction efficiency

Active Publication Date: 2020-06-19
HANGZHOU YUEXUANTANG COSMETICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing dietary fiber extraction methods are enzymatic methods, which are costly. Generally, chemical separation is used. Although the process is simple and low in cost, the extraction efficiency is not high. In this study, the alkaline method is used, and other chemical reagents are used to extract water-soluble fiber. and insoluble dietary fiber

Method used

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  • A kind of method for extracting dietary fiber of Auricularia japonica by alkali method
  • A kind of method for extracting dietary fiber of Auricularia japonica by alkali method
  • A kind of method for extracting dietary fiber of Auricularia japonica by alkali method

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Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0027] Alkaline Extraction of Jade Fungus Dietary Fiber

[0028] Single factor method:

[0029] 1 Experimental materials

[0030] Jade fungus from Jilin Agricultural University, dehydrated, desugared and dried, crushed and sieved for use; 95% ethanol, absolute ethanol, deionized water and other reagents and solvents were of analytical grade. Acetic acid, 0.5%, 1.0%, 1.5%, 2.0%, 2.5% NaOH solution.

[0031] Experimental equipment: HH-4 electric heating constant temperature water bath; SHB-Ⅲ circulating water multi-purpose vacuum pump, 101-1 electric blast drying oven; electronic analytical balance; cooking and sterilizing pot.

[0032] 2 Fungus sample preparation

[0033] 2.1 Dehydration

[0034] Take 10 g of pulverized jade fungus, place it in a vacuum oven at 70°C ± 1°C, and dry it to constant weight. Transfer the dried sample to a desiccator, and weigh (mD) after the temperature of the sample drops to room temperature. According to the mass of the sample before and aft...

specific Embodiment 2

[0071] 1. Response surface results

[0072] 1. Central composite experimental design factors

[0073]

[0074] 2. Design results of central composite experiment

[0075]

[0076] 3. Analysis of variance of water-soluble dietary fiber

[0077]

[0078] According to Table 3, adopt the response analysis method to analyze the test results, obtain the regression equation with the water-soluble dietary fiber extraction amount as the response value:

[0079] Water-soluble dietary fiber SDF extraction amount=0.36+0.005833A+0.0025B-0.0008333C-0.004167D-0.0025AB+0.005AC-0.02AD+0.0025BC+0.012BD+0CD-0.037A 2 -0.044B 2 -0.0065C 2 -0.011D 2

[0080] 4. Analysis of variance of insoluble dietary fiber

[0081]

[0082] According to Table 4, adopt the response analysis method to analyze the test results, obtain the regression equation with the insoluble dietary fiber extraction amount as the response value:

[0083] Insoluble dietary fiber IDF =0.57-0.0025A+0.003333B-0.0066...

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Abstract

The invention discloses a method for extracting dietary fibre of Auricularia nigricans by using an alkaline process, belongs to the field of extraction of plant dietary fibre, and aims at providing a method for extracting the dietary fibre of the Auricularia nigricans by using the alkaline process and acquiring a best extraction technology. The method specifically comprises the following steps of pre-processing the Auricularia nigricans; adding a sodium hydroxide solution into the pre-processed Auricularia nigricans until the material liquid ratio is (1:20) to (1:280); and performing extracting on the processed Auricularia nigricans under extracting temperature of 60 DEG C to 100 DEG C to obtain Auricularia nigricans slag powder.

Description

technical field [0001] The invention relates to a method for extracting dietary fiber, in particular to a method for extracting dietary fiber from fungus agaricus by alkaline method. Background technique [0002] Jade fungus is a white mutant strain of Auricularia auricula. Jade fungus is rich in dietary fiber. Dietary fiber is a general term for digestible polysaccharides that cannot be secreted by the human digestive tract. It can enhance the immune system, lower cholesterol, prevent high blood pressure, heart disease, and high blood pressure. Hyperlipidemia, etc., has the effects of laxative, diuretic, increasing gastrointestinal motility and preventing enterocolitis. Most of the existing dietary fiber extraction methods are enzymatic methods, which are costly. Generally, chemical separation is used. Although the process is simple and low in cost, the extraction efficiency is not high. In this study, the alkaline method is used, and other chemical reagents are used to ext...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L33/21A23L31/00
Inventor 司风玲
Owner HANGZHOU YUEXUANTANG COSMETICS CO LTD
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