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Ultrasonic extraction process for soybean oil

An extraction process, soybean oil technology, applied in the direction of fat oil/fat production, fat oil/fat refining, fat production, etc., can solve the problems of health hazards, blood cholesterol, triacylglycerol and LDL-C increase, etc., to improve quality, The operation process is easy to control and the effect of improving the content

Inactive Publication Date: 2015-09-09
YUQING COUNTY TOAST FLAVOR FOOD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The content of saturated fatty acid in the currently produced soybean oil is high, long-term consumption will cause blood cholesterol, triacylglycerol and LDL ~ C to increase, and bring harm to human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of ultrasonic extraction process of soybean oil, comprises the following steps:

[0028] (1) Soybean pretreatment: Add soybeans to the suction flat sieve to remove impurities such as metals, stones and dust in soybeans; then send the soybeans after winnowing into the dryer and dry them at a temperature of 40°C until the moisture content is 5%; then the dried soybeans are sent into a pulverizer and pulverized until the fineness is 20 mesh;

[0029] (2) Soybean crude oil production: mix the soybean powder in step (1) with petroleum ether, adjust the liquid-solid ratio to 10:1, and then send it into the reflux extractor equipped with an ultrasonic oscillator, and the ultrasonic power is 300w Under the action of ultrasonic waves, heat and reflux extraction twice, each extraction time is 20min, then carry out suction filtration, reclaim petroleum ether, obtain soybean crude oil;

[0030] (3) Prepare urea-alcohol solution: mix urea and ethanol in a weight ratio of ure...

Embodiment 2

[0035] A kind of ultrasonic extraction process of soybean oil, comprises the following steps:

[0036] (1) Soybean pretreatment: Add soybeans to the suction flat sieve to remove impurities such as metals, stones and dust in soybeans; then send the soybeans after winnowing into the dryer and dry them at a temperature of 60°C until the moisture content is 7%; then the dried soybeans are sent into a pulverizer and pulverized to a fineness of 25 mesh;

[0037](2) Soybean crude oil production: mix the soybean powder in step (1) with ethanol, adjust the liquid-solid ratio to be 16:1, then send it into a reflux extractor equipped with an ultrasonic oscillator, and use it under the ultrasonic power of 400w Under the action of ultrasonic waves, heat and reflux extraction 4 times, each extraction time is 25min, then carry out suction filtration, recover ethanol, and obtain crude soybean oil;

[0038] (3) Prepare urea alcohol solution: mix urea and ethanol in a weight ratio of urea:etha...

Embodiment 3

[0043] A kind of ultrasonic extraction process of soybean oil, comprises the following steps:

[0044] (1) Soybean pretreatment: Add soybeans to the suction flat sieve to remove impurities such as metals, stones and dust in soybeans; then send the soybeans after winnowing into the dryer and dry them at a temperature of 50°C until the moisture content is 6%; then the dried soybeans are sent into a pulverizer and pulverized to a fineness of 30 mesh;

[0045] (2) Soybean crude oil production: the soybean powder in step (1) is mixed with ethanol, and the liquid-solid ratio is adjusted to be 13:1, and then sent into a reflux extractor provided with an ultrasonic oscillator, and the ultrasonic power is 350w Under the action of ultrasonic waves, heat and reflux extraction for 3 times, each extraction time is 22min, then carry out suction filtration, recover ethanol, and obtain crude soybean oil;

[0046] (3) Prepare urea alcohol solution: mix urea and ethanol in a weight ratio of ur...

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PUM

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Abstract

The invention discloses an ultrasonic extraction process for the soybean oil, and belongs to the preparation technical field of vegetable oils. According to the process, soybeans are pretreated to obtain soybean powders firstly. After that, the crude soybean oil is obtained through the ultrasonic extraction process and then is subjected to clathration in an ethanolurea solution to obtain a crystal substance and a filtrate. The crystal substance dissolves in hexane to be extracted to obtain a saturated fatty acid. Ethanol is recovered through the decompression recovery of the filtrate, and then urea is removed through washing the filtrate. After that, the finished product of the soybean oil is obtained through the degumming, decolouring, depickling and deodorization process. According to the invention, through the ultrasonic extraction process, the oil yield of the soybean oil is improved. Through the urea clathration process, the content of unsaturated fatty acids in the soybean oil is improved.

Description

technical field [0001] The invention relates to the technical field of vegetable oil preparation, in particular to an ultrasonic extraction process of soybean oil. Background technique [0002] Soybean oil is a kind of oil extracted from soybean seeds. Soybean oil is light yellow, clear and transparent, and has no sediment. Good quality soybean oil is lighter in color. The fatty acid composition of soybean oil is better. It is rich in linoleic acid, which is an essential fatty acid for human body and has important physiological functions. Linoleic acid has a significant effect on preventing cardiovascular diseases, and can reduce serum cholesterol levels. Soybean oil contains a lot of vitamin E, vitamin D and rich lecithin, which are very beneficial to human health. The lack of linoleic acid in young children will not only cause dry skin and thickened scales, but also slow growth and development; the lack of linoleic acid in the elderly will cause cataracts and cardiovascul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10C11B1/04C11B3/00C11C1/02
Inventor 戴建忠
Owner YUQING COUNTY TOAST FLAVOR FOOD