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Pilot test method for extracting soybean oil by using aqueous enzymatic method

A soybean oil and water enzymatic technology, which is applied in the direction of oil/fat production and fat production, can solve the problems of increased production costs, expensive enzyme preparations, and cannot be reused, and achieves reduced dosage, low production costs, and simple methods. Effect

Active Publication Date: 2013-09-04
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Application Information

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Problems solved by technology

[0003] At present, the main problem of using water enzymatic method to extract soybean oil is that the enzyme preparation is expensive and cannot be reused. After enzymatic hydrolysis and extraction, some oil exists in the hydrolyzate and emulsion and cannot be used. Moreover, the application of a large amount of water has also increased. Cost of production

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  • Pilot test method for extracting soybean oil by using aqueous enzymatic method

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Embodiment

[0013] After pressing the soybeans into tablets, perform extrusion pretreatment to obtain puffed materials, weigh 200kg of pulverized puffed materials and add them to an electric heating type enzymolysis reaction tank, then add 1000kg of tap water, stir and mix at a stirring speed of 70r / min, After mixing evenly, adjust the pH to 9-9.5 with NaOH; add P6L alkaline protease, and enzymolyze at 55-60°C for 1.5 hours to obtain the enzymolysis solution; then use a horizontal centrifuge to separate the enzymolysis system to obtain residue I, hydrolysis Liquid and Emulsion I. Take by weighing 200kg pulverized puffed material and join in the electric heating type enzymolysis reaction tank, then add hydrolyzate and emulsion I and tap water to add up to 1000kg, stir and mix under 70r / min stirring speed, after mixing evenly, use NaOH to adjust pH to 9-9.5;, enzymatically hydrolyze at 55-60°C for 2.5h to obtain the enzymatic hydrolysis solution; then use a horizontal centrifuge to separate...

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Abstract

The invention discloses a pilot plant test method for extracting soybean oil by using an aqueous enzymatic method, which belongs to a vegetable oil processing technique. The method is performed by taking soybeans as raw materials through the steps of carrying out sheeting and extrusion pretreatment on soybeans, and mixing a soybean product with water so as to obtain a liquid mixture; and adding alkali proteases into the liquid mixture to carry out cyclic enzymolysis, and carrying out centrifugal separation on the obtained product so as to obtain soybean oil. According to the invention, an enzymic preparation and the water are cyclically utilized, thereby greatly reducing the production cost; and emulsion fluid and hydrolysate are cycled simultaneously, so that the purpose of emulsion breaking is achieved, and the enrichment of oil and fat in the hydrolysate is also realized, thereby improving the yield of soybean oil.

Description

technical field [0001] The invention belongs to the application of biotechnology in the food industry, and mainly relates to a pilot test method for extracting soybean oil by aqueous enzymatic method. Background technique [0002] In the preparation of vegetable oil, the leaching method and the mechanical pressing method based on No. 6 solvent are mainly used. The pressing method has simple process, less supporting equipment, strong adaptability to oil varieties, and pure flavor, but the cake after pressing has a high residual oil content, low oil extraction efficiency, large power consumption, and easy loss of parts. Although the leaching method has a high oil extraction rate (95%-98%), the protein denaturation of the wet meal is serious during the high temperature desolventization process, and the use of organic solvents increases the complexity of the process, reduces the safety of production, and causes environmental pollution. , and with the depletion of petroleum reso...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B1/00C11B1/04
Inventor 江连洲李杨齐宝坤于鹏王中江王胜男
Owner NORTHEAST AGRICULTURAL UNIVERSITY