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Method for leaching peanut oil in water with microwave pretreatment

A peanut oil and pretreatment technology is applied in the fields of edible vegetable oil processing and edible oil extraction, which can solve the problems of damage to the nutritional value and harm of peanut oil, and achieve the effects of easy industrial production, short technological process and simple equipment.

Inactive Publication Date: 2011-08-17
郑小非
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by this invention is to provide a kind of brand-new production method of peanut oil, to overcome the damage of nutritional value of peanut oil in the above-mentioned prior art, the harm of trans fatty acid and benzopyrene to human body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0023] Weigh 100kg of shelled peanut kernels containing 48% oil, heat to 50°C under microwave irradiation, and then grind to 120 mesh; then add 250L of hot water according to the water-to-material ratio of 2.5:1 for slurry preparation, and the slurry is prepared at 50°C and 40r Stir and fuse at a constant temperature for 35 minutes under the condition of constant temperature / min, and then dry and dehydrate the centrifuged clean oil at 95kpa and 65°C to obtain 46.81kg of pure natural peanut oil, and the calculated oil rate is:

[0024] 46.81kg / 48kg×100%=97.52%

example 2

[0026] Weigh 100kg of shelled peanut kernels containing 50.6% oil, and grind to 200 mesh after being heated to 85°C by microwave irradiation; add 1500L of hot water according to the water-to-material ratio of 10.5:1 for slurry preparation; Stir and fuse at a constant temperature for 150 minutes under the condition of 10 minutes, and dry and dehydrate the clear oil obtained by centrifugal separation under the conditions of vacuum 95kpa and 65°C to obtain 49.80kg of pure natural peanut oil, and the calculated oil rate is:

[0027] 49.80kg / 50.6kg×100%=98.42%

[0028] After testing, all the indicators of the obtained pure natural peanut oil have reached the national standard of pressed first-grade peanut oil (GB1534--2003), and it does not contain trans fatty acids and benzene at all.

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PUM

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Abstract

The invention discloses a method for leaching peanut oil in water with microwave pretreatment, belonging to the technical field of edible plant oil processing methods and aiming at solving the technical problem that a bran-new peanut oil production method is provided so as to overcome the destruction of the nutrient value of the peanut oil and the damage of trans-fatty acid and benzopyrene on a human body in the prior art. The method is characterized in that based on peanut kernels without shells as raw materials, microwave irradiation heating is carried out so as to promote oil-containing cells to be fully broken; the peanut kernels are grinded in a grinding machine to 120-200 meshes; hot water is added in the ground peanut kernels in a proportion for stirring and fusing at constant temperature; and centrifugal separation and vacuum drying are carried out so as to directly obtain the pure peanut oil, wherein the oil yield of the pure peanut oil is larger than or equal to 95%, nutrient ingredients in the pure peanut oil are entirely maintained, and harmful components such as trans-fatty acid, benzopyrene and the like do not completely contained in the pure peanut oil. The method has the characteristics that the obtained pure peanut oil has no high temperature high pressure and no organic solvent residue, process flow is short, equipment is simple, oil yield is high, and the like, and the method is easy for industrial production.

Description

technical field [0001] The invention relates to a method for extracting edible oil from plant seeds, in particular to a method for extracting peanut oil from peanut kernels, and belongs to the technical field of edible vegetable oil processing methods. Background technique [0002] Peanut is an important high-oil shell soft edible oil in my country. Peanuts contain about 65%-75% kernel, 40%-55% oil in the kernel, and 25%-31% protein. Peanuts are rich in nutrition, rich in various vitamins and trace elements such as calcium, phosphorus, iron, magnesium and zinc. Peanut oil is an edible oil extracted from peanuts, and the oil contains more than 80% unsaturated fatty acids. Moreover, the content of resveratrol, β-sitosterol, vitamin E, etc. is also very rich. Modern medical research has proved that these materials are chemopreventive agents for tumor diseases, arteriosclerosis and cardiovascular and cerebrovascular diseases. An excellent edible oil with health care function....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10C11B1/04A23D9/02
Inventor 郑小非万绍平
Owner 郑小非