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Preparation method of natural pine nut edible oil

A technology for edible oil and pine nuts, which is applied in the production of fat oil/fat and fat production, can solve the problems of high energy consumption, infeasible washing with water, increase production cost, etc., and achieve the effect of improving oil yield and reducing production cost.

Active Publication Date: 2015-07-22
陕西雨鹤生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can separate oil and slag better, its defect is that adding pine nut husks will bring pine oil (rosin) flavor to pine nut edible oil, which will affect the quality of edible oil; adding rice husk, straw, wheat stalks, the process is complex, especially the process of cutting, washing and drying wheat straws and straws consumes a lot of energy in winter and increases production costs. It is not feasible to wash other materials with water
[0007] Patent 02132485.9 discloses a method of supercritical extraction of carbon dioxide to process pine nut oil. This method is expensive in equipment, and the cost of materials such as carbon dioxide consumption is too high. The edible oil produced has no market competitiveness due to the high cost
[0008] There is no report on the high-quality pine nut oil that is simple and easy to implement and can be effectively obtained without additives

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The shelled pine nuts are dried and cleaned, with a moisture content of 12%; crushed, and the pine nuts are taken out;

[0027] Get 25kg pine nuts for subsequent use. Preheat the temperature of the roasting machine to 50°C, put the prepared pine nuts into the roasting machine for roasting, raise the temperature of the roasting machine and control it at 60°C, and put the fried pine nuts directly into the roasting machine after 10 minutes Squeeze with a screw press, and filter the squeezed crude oil through an oil filter: bag pressurized filter, filter oil temperature is 55°C, gradually pressurize to 0.3MPa (as the filter cake thickens, the pressure gradually increases, to 0.3MPa), light yellow, transparent, and fragrant pine nut oil can be obtained. After weighing, the oil yield reached 30%.

[0028] Tested according to the standard SN / T1033-2002 method, the acid value is 0.3mgKOH / g, the peroxide value is 5.0mmol / kg, and there is no solvent residue. It was stored at r...

Embodiment 2

[0030] The shelled larch pine nuts are dried and cleaned, with a moisture content of 12%; crushed, and the pine nut kernels are taken out;

[0031] Get 25kg pine nuts for subsequent use. Preheat the temperature of the roasting machine to 50°C, put the prepared pine nuts into the roasting machine for roasting, control the temperature of the roasting machine at 65°C, and put the fried pine nuts directly into the screw press after 8 minutes Machine pressing, and the extracted crude oil is filtered through an oil filter machine, the temperature of the oil filter is adjusted to 60°C, and the pressure is gradually increased to 0.3Mpa, and light yellow, transparent, and fragrant pine nut oil can be obtained. After weighing, the oil yield reached 32%.

Embodiment 3

[0033] The shelled pine nuts are dried and cleaned, with a moisture content of 12%; crushed, and the pine nuts are taken out;

[0034] Get 25kg pine nuts for subsequent use. Preheat the temperature of the roasting machine to 50°C, put the prepared pine nuts into the roasting machine for roasting, control the temperature of the roasting machine at 60°C, and put the fried pine nuts directly into the screw press after 8 minutes Machine pressing, and the crude oil obtained is filtered through an oil filter machine (the temperature of the oil filter is adjusted to 62°C, and the pressure is gradually increased to 0.3Mpa), and light yellow, transparent, and fragrant pine nut oil can be obtained. After weighing, the oil yield reached 35.5%.

[0035] Tested according to the standard SN / T1033-2002 method, the acid value is 0.3mgKOH / g, the peroxide value is 4.5mmol / kg, and there is no solvent residue. It was stored at room temperature for 6 months without oxidation.

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Abstract

The invention provides a preparation method of natural pine nut edible oil. The preparation method comprises the following steps: 1, airing pine nuts with shells to enable the moisture contents of the pine nuts to be not more than 12%, and crushing the pine nuts to take out pine nut kernels; 2, pre-heating a drying and frying machine to 50-60 DEG C, putting the pine nut kernels into the drying and frying machine, adjusting the temperature of the drying and frying machine to 60-80 DEG C, and drying and frying; 3, putting the dried and fried pine nut kernels into a squeezing device, and squeezing to obtain oil; 4, filtering rough oil squeezed in the step 3 to separate out pine nut oil and oil dregs. According to the provided novel processing and producing method using the pine nuts as raw materials to produce the pine nut edible oil by squeezing, for the pine nuts, particularly pinus pumila nuts, which are difficult in producing oil by squeezing, the pine nut edible oil with high quality can be produced without adding any additive, the oil extraction rate can be improved, and the production cost can be reduced.

Description

technical field [0001] The invention belongs to the field of preparation methods of vegetable oil, and in particular relates to a method for pressing vegetable oil. Background technique [0002] With the improvement of people's living standards, the demand for natural and environmentally friendly edible oils is increasing. Not only the quality of edible oils is high, but also the varieties of edible oils are more demanding, especially for natural oils. , Non-polluting plants are the most popular raw materials, and the traditional method of producing edible oil without additives is the most popular. [0003] Inner Mongolia Daxing'an Mountains forest area is rich in pine nuts such as pine, larch, camphor pine, etc. Pine nuts contain a lot of amino acids, carbohydrates, various vitamins and a lot of oil that the human body needs. But so far, most of these resources are sold as nuts in the market, and their seeds are eaten, but they have not been fully and rationally utilized. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B1/04C11B1/06
Inventor 周广胜
Owner 陕西雨鹤生物科技有限公司
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