Method for extracting soybean oil and soybean meal by using vacuum extrusion puffing pretreatment solvent method

A technology of vacuum extrusion and soybean oil, which is applied in the direction of fat oil/fat production and fat generation, can solve the problems that affect the extraction rate of soybean oil, the length of leaching time, the degree of denaturation of soybean meal, etc., so as to improve the comprehensive utilization value and shorten the extraction time , the effect of simple equipment

Active Publication Date: 2013-03-06
KEDONG YUWANG SOY PROTEIN FOOD CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still few studies on the process conditions of vacuum extrusion pretreatment immersion oil. The process conditions are the key to the extraction rate of soybean oil, the length of extraction time and the degree of denaturation of soybean meal. Therefore, to explore the extraction of soybean oil and soybean meal with low denaturation Process conditions are of great significance

Method used

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  • Method for extracting soybean oil and soybean meal by using vacuum extrusion puffing pretreatment solvent method
  • Method for extracting soybean oil and soybean meal by using vacuum extrusion puffing pretreatment solvent method
  • Method for extracting soybean oil and soybean meal by using vacuum extrusion puffing pretreatment solvent method

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Embodiment 1

[0027] The following are examples and test data thereof, etc., but the content of the present invention is not limited to the scope of these examples. Example 1: Screening experiment of optimal parameters for vacuum extrusion puffing of peeled soybean flakes

[0028] 1 Materials and methods

[0029] 1.1 Materials and reagents

[0030] Dehulled soybean flakes Harbin Jiusan Oil Group

[0031] n-Hexane Shanghai Huyu Biochemical Reagent Co., Ltd.

[0032] 1.2 Main instruments and equipment

[0033] pHS-25 acidity meter Shanghai Weiye Instrument Factory

[0034] Electronic Analytical Balance Merlot-Toledo Instruments (Shanghai) Co., Ltd.

[0035] Centrifuge Beijing Medical Centrifuge Factory

[0036] Precision Electric Mixer Jiangsu Jintan City Ronghua Instrument Manufacturing Co., Ltd.

[0037] Electric constant temperature water bath Yuyao Dongfang Electrical Instrument Factory

[0038] Semi-automatic azotometer Shanghai Xinjia Electronics Co., Ltd.

[0039] Digester Sha...

Embodiment 2

[0089] Example 2: Screening experiment of vacuum extrusion puffing extraction process parameters of dehulled soybean flakes

[0090] Based on the optimal vacuum extrusion puffing pretreatment process determined in Experimental Example 1, a single factor extraction test was carried out to determine the extraction process parameters (extraction temperature, extraction time, solvent and extraction oil ratio, stirring speed, extraction times) ) range. Taking the result of fuzzy comprehensive evaluation as the response value D, a response surface design experiment with 5 factors and 5 levels was carried out.

[0091] 1 Materials and methods

[0092] 1.1 Materials and reagents

[0093] Dehulled soybean flakes Harbin Jiusan Oil Group

[0094] n-Hexane Shanghai Huyu Biochemical Reagent Co., Ltd.

[0095] 1.2 Main instruments and equipment

[0096] pHS-25 acidity meter Shanghai Weiye Instrument Factory

[0097] Electronic Analytical Balance Merlot-Toledo Instruments (Shanghai) Co...

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Abstract

The present invention relates to a method for extracting soybean oil and low degeneration soybean meal by using a vacuum extrusion puffing pretreatment solvent method. The method comprises the following steps: crushing peeled soybean flakes, carrying out vacuum extrusion puffing by using a vacuum extrusion puffing machine, carrying out leaching on the obtained soybean product by using a solvent n-hexane, then carrying out separation to obtain mixing oil and wet meal, carrying out steam stripping on the mixing oil through a vacuum rotation evaporator to obtain the soybean oil, and carrying out flash evaporation precipitation on the wet meal to obtain the soybean meal, wherein a mold pore size of the vacuum extrusion puffing machine is 10-22 mm, a screw rotation speed is 40-140 r/min, a bush temperature is 40-80 DEG C, a vacuum degree is 0.02-0.06 MPa, a water content of the crushed soybean material is 8-16%, a leaching time is 40-100 min, a leaching temperature is 60-92 DEG C, a ratio of the solvent n-hexane volume to the weight of the soybean product after vacuum extrusion puffing is 0.6:1-2.2:1 ml/g, a stirring speed is 60-120 r/min, and the number of leaching is 1-5. With the present invention, purposes of soybean oil yield improvement, soybean meal degeneration degree reduction, and leaching time shortening are achieved.

Description

technical field [0001] The invention relates to a method for extracting soybean oil and soybean meal, in particular to a method for extracting soybean oil and low-denatured soybean meal by a vacuum extrusion pretreatment solvent method, which belongs to the field of vegetable oil extraction and processing. Background technique [0002] The extraction of vegetable oil mainly includes hot pressing and cold pressing processes. In the traditional hot pressing process, the protein is volatile and the heat-sensitive substances in the oil are easily destroyed. Compared with the traditional hot pressing process, the temperature of the cold pressing process is lower, so that the protein is not denatured. Nutrients can be effectively preserved, but the oil produced by the cold pressing process still has high residual oil in the cold pressed cake, and the general cold pressed oil yields little or no oil. [0003] Extrusion expansion is to use the heat generated by friction to heat up t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/00C11B1/10
Inventor 江连洲李杨齐宝坤王辰王中江王胜男
Owner KEDONG YUWANG SOY PROTEIN FOOD CO LTD
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