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Preparation method of walnut oil and spiral oil extracting device thereof

An oil pressing device and walnut oil technology, applied in the direction of manufacturing tools, fat oil/fat production, fat production, etc., can solve the problems of affecting oil quality, waste of resources, dark color, etc., to maintain nutrients and flavor substances, and avoid deep damage , Improve the effect of tissue composition

Inactive Publication Date: 2019-05-21
北京同仁堂安徽中药材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The screw pressing method has problems such as bitter oil and dark color, the color of walnut meal is dark brown, and the taste is bitter, which cannot be further processed and utilized, resulting in waste of resources and other problems; the water substitution method uses the "affinity" of non-oil components in oil plants to oil and water At the same time, using the difference in water and oil density, the grease is separated by physical methods, which has the disadvantages of low oil yield, difficult separation, and easy oxidation; the organic solvent extraction method has the inherent flammability and explosion hazards of the solvent and the Residual solvents in oil and meal are harmful to health and affect the quality of oil; supercritical CO 2 Fluid extraction equipment is expensive, maintenance costs are high, and factory production is difficult

Method used

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  • Preparation method of walnut oil and spiral oil extracting device thereof
  • Preparation method of walnut oil and spiral oil extracting device thereof
  • Preparation method of walnut oil and spiral oil extracting device thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] The treatment process screening embodiment of screening embodiment 1 walnut: walnut adopts following several ways to carry out pretreatment respectively, then prepares walnut oil:

[0035] 1. Screen high-quality walnuts that are not damaged or moldy, put them into a frying pan and stir-fry them at a temperature of 40°C for 3-5 minutes to obtain mature walnuts, and cool them for later use.

[0036] 2. Screen high-quality walnuts without damage or mildew, put them into a frying pan and stir-fry at a temperature of 60°C for 4-5 minutes to obtain mature walnuts, and cool them for later use.

[0037] 3. Screen high-quality walnuts without damage or mildew, put them into a frying pan and stir-fry them at a temperature of 50°C for 3-5 minutes to obtain mature walnuts, and cool them for later use.

[0038] 4. Screen high-quality walnuts without damage or mildew, put them into a frying pan and stir-fry at a temperature of 55°C for 3-4 minutes to obtain mature walnuts, and cool t...

Embodiment 2

[0044] Screening Example 2 The treatment process screening embodiment of walnut kernels: the walnut kernels obtained by directly shelling walnuts are processed in the following ways respectively, and then walnut oil is prepared:

[0045]1. Carry out liquid nitrogen freezing treatment of walnut kernels, and carry out microwave thawing treatment to remove the attached skin; the temperature of liquid nitrogen freezing treatment is -60°C, and the treatment time is 10 minutes; the power of microwave thawing treatment is 700W, and the treatment temperature is 40 ℃, the time is 12min.

[0046] 2. Freeze the walnut kernels with liquid nitrogen and thaw them with microwave to remove the skin; the temperature of the liquid nitrogen freezing treatment is -70°C, and the treatment time is 10 minutes; the power of the microwave thawing treatment is 800W, and the treatment temperature is 45 ℃, the time is 12min.

[0047] 3. Freeze the walnut kernels with liquid nitrogen and thaw them with m...

Embodiment 3

[0055] Screening example 3: the processing parameters of the treatment process of preferred screening example 1 and screening example 2, the walnut kernels are combined with the process of stirring and removing the skin, and then prepare walnut oil:

[0056] Screen high-quality walnuts without damage and mildew, put them into a frying pan and stir-fry them at a temperature of 50°C for 3-5 minutes to obtain ripened walnuts, cool them for later use; then transport the ripened walnut kernels to a crusher for crushing Crushing and shelling treatment; then the walnut kernels were subjected to liquid nitrogen freezing treatment, and microwave thawing treatment was performed to remove the attached skin; the temperature of liquid nitrogen freezing treatment was -70°C, and the treatment time was 10 minutes; the power of microwave thawing treatment was 800W, and the treatment The temperature is 45°C, and the time is 12 minutes; the walnut kernels after peeling are chopped into 0.7-0.9cm ...

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Abstract

The invention discloses a preparation method of walnut oil and a spiral oil extracting device. The preparation method comprises the following steps of placing selected walnuts into a wok for stir-frying, obtaining the mature walnuts, and cooling for prepare use; breaking shells, and separating the shells and walnut kernels; conducting liquid nitrogen freezing treatment on the walnut kernels, and conducting microwave thawing treatment to remove skin; sending the peeled walnut kernels to a crusher for crushing, crushing to a coarse grain shape, and obtaining a pressing raw material; conducting low temperature pressing after putting the pressing raw material in a presser to obtain the walnut oil and an oil residue; filtering the walnut oil to obtain initial filtering oil; placing the initialfiltering oil under vacuum, filling nitrogen, and standing; filtering the initial filtering oil after standing through a refined filtering device to obtain a finished product. Through the above treatment process, the method improves the oil yield and ensures the quality and taste of the walnut oil. The spiral oil extracting device improves the oil yield of the pressed walnuts by setting multi-stage pressing screws and gradually decreasing spacing between spiral blades on each pressing screw.

Description

technical field [0001] The invention relates to a preparation method of walnut oil and a screw oil pressing device thereof, belonging to the technical field of edible oil processing. Background technique [0002] Walnut, also known as walnut and Qiang peach, is a plant of the Juglandaceae family. Together with almonds, cashew nuts and hazelnuts, it is also known as the world-renowned "four major dried fruits". Walnuts are rich in nutrients, containing 15-20 grams of protein per hectogram, more fat, 10 grams of carbohydrates, and contain calcium, phosphorus, iron and other trace elements and minerals necessary for human body, as well as carotene, nuclear Flavin and other multivitamins. At the same time, the oil content of walnut kernel is as high as 65% to 70%, ranking first among all woody oil plants, and has the reputation of "oil depot on trees". [0003] Walnut oil is a vegetable oil made from walnut kernels and squeezed. It contains a large amount of unsaturated fatty...

Claims

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Application Information

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IPC IPC(8): C11B1/06C11B1/04B30B9/12
Inventor 胡胜甜鲁大伟王桃桃吴计划王芬
Owner 北京同仁堂安徽中药材有限公司
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