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Walnut oil refining method

A walnut oil and walnut technology, applied in the field of walnut oil refining, can solve the problems of backward processing technology and processing equipment, short shelf life, solvent residue, etc.

Inactive Publication Date: 2010-04-07
石家庄市丸京干果有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing processing technology, processing technology and processing equipment are backward, and the produced walnut oil has many deficiencies in quality and shelf life, such as short shelf life, easy to produce solvent residues, etc., it is difficult to enter the market, which seriously restricts the expansion of reproduction

Method used

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  • Walnut oil refining method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] Selected walnut kernels, the crushed walnut kernels are first squeezed with a vertical cylinder hydraulic oil press to extract walnut oil, the pressing pressure is 20Mpa, the pressing time is 25-30min, the oil yield is controlled at 35%, and the first-grade cold-pressed walnut cake is obtained; Secondary cold pressing is to extract walnut oil from primary cold-pressed walnut cake with water-cooled temperature-controlled, frequency-adjusted and variable-speed screw oil press, and the oil output temperature is controlled at ≤65-70°C by constant temperature automatic control device, and the cake output temperature is ≤67-67°C. 72 DEG C, the residual oil in the cake is less than or equal to 9%, and two cold-pressed walnut oils are combined to obtain walnut crude oil.

[0077] Walnut crude oil is refined intermittently with caustic soda, the concentration of caustic soda is 10.45%, the initial temperature of alkali refining is 40°C, the stirring speed is 50r / min, and the amou...

Embodiment 2

[0084] Selected walnut kernels, the crushed walnut kernels are first squeezed with a vertical cylinder hydraulic oil press to extract walnut oil, the pressing pressure is 20Mpa, the pressing time is 25-30min, the oil yield is controlled at 32%, and the first-grade cold-pressed walnut cake is obtained; Secondary cold pressing is to extract walnut oil from primary cold-pressed walnut cake with water-cooled temperature-controlled, frequency-adjusted and variable-speed screw oil press, and the oil output temperature is controlled at ≤65-70°C by constant temperature automatic control device, and the cake output temperature is ≤67-67°C. 72 DEG C, the residual oil in the cake is less than 16%, and two cold-pressed walnut oils are combined to obtain walnut crude oil.

[0085] Walnut crude oil is refined intermittently with caustic soda, the concentration of caustic soda is 12%, the initial temperature of alkali refining is 50°C, the stirring speed is 60r / min, and the amount of alkali a...

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Abstract

The invention provides a walnut oil refining method; walnut crude oil is prepared into the refined walnut oil by alkali refining, hydration, decoloring, hydrogenation, deodorization and drying; by utilizing multiple technologies comprehensively, the peroxide value of the walnut oil is reduced, the technical difficult point that the walnut oil is easy to oxidize is solved well, and the quality of the walnut oil is improved, the quality of the product is stable and the quality guarantee period of the walnut oil can reach more than 24 mouths. The method has the advantages of rational technology, advanced technology, strong innovativeness and good economic and social benefits.

Description

technical field [0001] The invention relates to a method for refining walnut oil. Background technique [0002] The products produced by the traditional walnut oil process have a shelf life of only about six months, and the acid value and peroxide value are high, making storage difficult. The inherent astringent substances in the walnut coat are not removed, which directly reduces the grade of the product. The application and development of oil have been greatly restricted. It is of great significance to use walnut crude oil to prepare high-grade edible oil and prolong the shelf life through refining. The existing processing technology, processing technology and processing equipment are backward, and the produced walnut oil has many deficiencies in quality and shelf life, such as short shelf life, easy to produce solvent residues, etc., it is difficult to enter the market, which seriously restricts the expansion of reproduction . Contents of the invention [0003] The i...

Claims

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Application Information

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IPC IPC(8): C11B3/06C11B3/10C11B3/00C11B1/06C11C3/12
Inventor 秦绪平秦世杰卢义和任铁平宫素芝王春芳梁绍隆冯霖刘红梅
Owner 石家庄市丸京干果有限公司
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