A method for improving the yield of peanut oil prepared by hydraulic pressure

A hydraulic and peanut oil technology, applied in the direction of fat production, edible oil/fat, fat oil/fat production, etc., can solve the problems of declining popularity rate, high residual oil, complicated process, etc., achieve low equipment requirements and improve use The effect of high life and oxidation stability

Active Publication Date: 2019-11-26
无锡食赫兹未来食品科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] (3) Excessively high temperature destroys some special flavor substances, resulting in a burnt smell;
[0009] (4) The temperature is too high, which makes the peanut meal seriously denatured and difficult to reuse;
[0010] (5) Roasting seeds at high temperature consumes a lot of energy;
[0011] (6) The process is complicated and the cost is high
[0012] (7) The direct contact between the screw of the oil press and the material generates a lot of heat (usually the temperature exceeds 100°C), which makes the protein powder produced have poor color and poor nutrition, and is only sold as feed.
[0014] (1) There is no fragrance of peanut oil, which reduces people's acceptance;
[0015] (2) The temperature in the process is low, and the shelf life of peanut protein powder is short;
[0016] (3) The yield of peanut oil is low, the cost is high, the market price is high, and the popularity rate is declining
However, the main defect of hydraulic oil extraction in peanut oil production is that the residual oil is high, usually reaching more than 20%, which restricts its industrial application

Method used

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  • A method for improving the yield of peanut oil prepared by hydraulic pressure
  • A method for improving the yield of peanut oil prepared by hydraulic pressure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Take 25 kg of peanut kernels, put the screened peanuts into an infrared heating machine for processing by vacuum suction (heating at 130°C for 40 minutes, processing distance of 20 cm, material thickness of 5 cm, infrared wavelength of about 2.5 μm), processed peanuts Cool at room temperature for 5 hours, and use the LXT-1 stripper to remove the red coat;

[0042] (2) dry grinding to 2 μm by means of an ultrafine pulverizer;

[0043] (3) Using a three-column hydraulic oil press, the pressure is gradually increased to prepare peanut oil:

[0044] The first stage: 10 ~ 12bar treatment for 30mins;

[0045] The second stage: 25~28bar treatment for 30mins;

[0046] The third stage: 45 ~ 48bar treatment for 30 minutes;

[0047] The fourth stage: 95~98bar treatment for 30mins;

[0048] The fifth stage: 290~295bar treatment for 30mins;

[0049] The sixth stage: 570~585bar treatment for 30mins.

[0050] The obtained crude oil is centrifuged at room temperature at 4500r...

Embodiment 2

[0053] (1) Take 25kg of the same batch of peanut kernels as in Example 1, and add the screened peanuts into an infrared heating machine for processing by vacuum suction (heating at 130°C for 40min, processing distance 20cm, material thickness 5cm, infrared wavelength 2.5μm About), the processed peanuts were cooled at room temperature for 5 hours, and the red coat was removed by LXT-1 stripper;

[0054] (2) dry grinding to 2 μm by means of an ultrafine pulverizer;

[0055] (3) Using a three-column hydraulic oil press, the pressure is gradually increased to prepare peanut oil:

[0056] The first stage: 12~15bar treatment for 30mins;

[0057] The second stage: 28 ~ 30bar treatment for 30mins;

[0058] The third stage: 48~50bar treatment for 30min;

[0059] The fourth stage: 98~100bar treatment for 35mins;

[0060] The fifth stage: 295~300bar treatment for 35mins;

[0061] The sixth stage: 580~600bar treatment for 30mins.

[0062] The obtained crude oil is centrifuged at roo...

Embodiment 3

[0065] (1) Take 25kg of the same batch of peanut kernels as in Example 1, and add the screened peanuts into an infrared heating machine for processing by vacuum suction (heating at 130°C for 40min, processing distance 20cm, material thickness 5cm, infrared wavelength 2.5μm About), the processed peanuts were cooled at room temperature for 5 hours, and the red coat was removed by LXT-1 stripper;

[0066] (2) dry grinding to 2 μm by means of an ultrafine pulverizer;

[0067] (3) Using a three-column hydraulic oil press, the pressure is gradually increased to prepare peanut oil:

[0068] The first stage: 12~15bar treatment for 60mins;

[0069] The second stage: 28~30bar treatment for 60mins;

[0070] The third stage: 48~50bar treatment for 60min;

[0071] The fourth stage: 98~100bar treatment for 60mins;

[0072] The fifth stage: 292~298bar treatment for 60mins;

[0073] The sixth stage: 575~590bar treatment for 60mins.

[0074] The obtained crude oil is centrifuged at room ...

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Abstract

The invention discloses a method for increasing the yield of hydraulically produced peanut oil and belongs to the technical field of food processing. The problem of higher residual oil rate during hydraulic production of peanut oil at present is effectively solved with a hydraulic pressing method adopting gradient pressure increase. Meanwhile, with the adoption of the gradient pressure increase manner, long-term high-pressure hydraulic pressing is prevented, the service life of equipment is effectively prolonged, and the production cost is reduced. Compared with a constant-pressure pressing method, the method has the advantages that the oil yield is increased by about 13%, the oil yield through hydraulic pressing is increased effectively, and application of hydraulic pressing in the industry is facilitated. Besides, soft, elegant and aromatic peanut oil produced with the method has the aroma and taste inherent peanut oil, has no odors, has light color, is clear and transparent, is low in acid value and high in VE content, has stable oxidation stability and contains rich unsaturated fatty acid, sterol, wheat germ phenol, phospholipid, choline and the like.

Description

technical field [0001] The invention relates to a method for improving the yield of peanut oil prepared by hydraulic pressure, and belongs to the technical field of food processing. Background technique [0002] Peanut is the fourth vegetable oil in the world, accounting for about 14% of the world's annual oil production. The oil content in peanuts is as high as 44%-58%, most of which are unsaturated fatty acids, especially the essential linoleic acid content is very rich. The content of protein in peanut is 24%-34%, the digestibility reaches 90%, contains 8 kinds of amino acids necessary for human body, is the third plant protein source in the world, and can supply about 11% of the world's demand. Therefore, peanut is a good source of protein supply, and extracting high-quality oil from peanut is one of the requirements for the development of oil industry. [0003] The traditional peanut oil extraction process mainly refers to two kinds of pressing method and leaching met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B1/04C11B1/06A23D9/02
CPCA23D9/02C11B1/04C11B1/06
Inventor 刘元法李凯
Owner 无锡食赫兹未来食品科技有限公司
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