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Preparation technology of environment-friendly and low-residue walnut oil

A production process and technology of walnut oil, which are applied in the directions of fat oil/fat production, fat production, and fat oil/fat refining, etc., can solve the problems of low oil yield and poor antioxidant capacity of edible oil, so as to improve the oil yield, High utilization rate and the effect of improving work pressure

Inactive Publication Date: 2018-04-13
盐津益康食用油有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the above two methods, walnut kernels are used as the only raw material for pressing, the oil yield is not high, and the latter is peeled, and the processed edible oil has poor antioxidant capacity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An environmentally friendly and low-residue walnut oil production process includes the following process steps:

[0028] (1) Select mature walnuts, remove the shells to obtain walnut kernels, then use a high-speed universal pulverizer to crush the walnut shells into walnut shell powders smaller than 60 meshes, and chop the walnut kernels into walnut kernels with a particle size of less than 0.4 cm;

[0029] (2) Drying the walnut shell powder and walnut kernels processed in step (1) at a temperature of 85°C for 2 hours;

[0030] (3) Mix the dried walnut shell powder and walnut kernels according to the mass ratio of 3.5:1.2, and put them into the hydraulic oil press, and use the cold pressing method to squeeze them into walnut oil to control the hydraulic oil press Working pressure is 60MPa;

[0031] (4) Put the crude walnut oil squeezed through the above steps into the hydration tank, keep the crude walnut oil at a normal temperature of 25°C, stir the crude walnut oil quickly at...

Embodiment 2

[0036] An environmentally friendly and low-residue walnut oil production process includes the following process steps:

[0037] (1) Select mature walnuts, remove the shells to obtain walnut kernels, then use a high-speed universal pulverizer to crush the walnut shells into walnut shell powders smaller than 60 meshes, and chop the walnut kernels into walnut kernels with a particle size of less than 0.4 cm;

[0038] (2) Dry the walnut shell powder and walnut kernels processed in step (1) at a temperature of 75°C for 2 hours;

[0039] (3) Mix the dried walnut shell powder and walnut kernels according to the mass ratio of 3.5:1.0, and put them into the hydraulic oil press, and use the cold pressing method to squeeze the walnut oil into control the hydraulic oil press The working pressure is 65MPa;

[0040] (4) Put the crude walnut oil squeezed through the above steps into the hydration tank, keep the crude walnut oil at a normal temperature of 18°C, quickly stir the crude walnut oil at a ...

Embodiment 3

[0045] An environmentally friendly and low-residue walnut oil production process includes the following process steps:

[0046] (1) Select mature walnuts, remove the shells to obtain walnut kernels, then use a high-speed universal pulverizer to crush the walnut shells into walnut shell powders smaller than 60 meshes, and chop the walnut kernels into walnut kernels with a particle size of less than 0.4 cm;

[0047] (2) Dry the walnut shell powder and walnut kernels processed in step (1) at a temperature of 80°C for 2.8 hours;

[0048] (3) Mix the dried walnut shell powder and walnut kernels according to the mass ratio of 3.5:1.2, and put them into the hydraulic oil press, and use the cold pressing method to squeeze the walnut oil into control the hydraulic oil press Working pressure is 64MPa;

[0049] (4) Put the crude walnut oil squeezed through the above steps into the hydration tank, keep the crude walnut oil at a normal temperature of 20°C, and quickly stir the crude walnut oil at ...

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Abstract

The invention discloses a preparation technology of an environment-friendly and low-residue walnut oil, and relates to the technical field of food processing. The preparation technology comprises thefollowing steps of selecting of raw materials, crushing, cutting into particles, drying, hydrating, dewatering, discoloring and the like. The preparation technology has the advantages that firstly, the walnut shell and the walnut kernel are mixed and are subject to hydraulic cold pressing, the working pressure of a hydraulic cold press is increased by utilizing the high-strength property of the walnut shell and walnut kernel, the oil pressing rate is further increased, and the utilization rate is higher in comparison with the traditional cold pressing technology; proofed by test, when the walnut shell powder and the walnut kernel particles are dried and are mixed according to a mass ratio of 3.5:1.2, the oil pressing rate is highest and reaches 50.12%; meanwhile, by strictly controlling each procedure parameter, the safe and stable preparation of edible oil is guaranteed, the original color, fragrance and flavor of the walnut oil are reserved, and the damage to nutritional components and trace elements of the walnut oil is avoided.

Description

Technical field [0001] The invention relates to the technical field of food processing, in particular to an environment-friendly and low-residue walnut oil production process. Background technique [0002] Walnut, also known as Juglans, is a plant belonging to the genus Juglans in the Juglans family. It ranks first among the four largest nuts in the world and is distributed in most parts of my country. Walnut kernel is rich in nutrition and is a kind of health food. Walnut oil is rich in unsaturated fatty acids, and its content is as high as 90%. It is a high-grade health oil. A hydraulic oil press or a screw press can be used to extract walnut oil. The dynamic pressing form of the pressed material in the press chamber during the squeezing process of the screw press easily causes the temperature of the press chamber to rise, resulting in denaturation of the protein in the press; while the static pressing form of the pressed material during the pressing process of the hydraulic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/06C11B1/04C11B3/00
CPCC11B1/04C11B1/06C11B3/001
Inventor 唐元其唐元雄
Owner 盐津益康食用油有限责任公司
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