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Walnut oil preparation method

A technology of walnut oil and walnut kernels, which is applied in the field of vegetable oil preparation technology, can solve the problems of easy destruction of nutrients, low oil yield, complicated process, etc., and achieve the effect of no damage to nutrients, high oil yield, and simple process

Inactive Publication Date: 2018-12-14
临江市山花绿色食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a preparation method of walnut oil aiming at the technical problems of low oil yield, easily damaged nutritional components and complex process in the traditional walnut oil production method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] The preparation method of walnut oil of the present invention may further comprise the steps:

[0028] (1) Grinding and drying walnut kernels, the drying temperature is 40-50°C, and the drying time is 30-60 minutes;

[0029] (2) grinding the dried walnut kernel into slurry;

[0030] (3) By weight, take 100 parts of slurry, add 8 to 12 parts of sodium carbonate, 4 to 8 parts of cellulase, 0.5 to 1 part of α-amylase, 3 to 6 parts of protease and 400-600 parts of distilled water, stirring and mixing; sodium carbonate, cellulase, α-amylase and protease to break the cells in the slurry, release nutrients in the cells, and interact between protein-water and protein-protein Enhance, enhance the oil stirring effect, improve the oil yield, among them, the activity of cellulase is ≥10000 activity units / g; the activity of α-amylase is ≥4000 activity units / g; the activity of protease is ≥100000 activity units / g; the stirring temperature is 25-35°C, the pH is 6.5-6.8, the stirrin...

Embodiment 1

[0035] The preparation method of walnut oil of the present invention may further comprise the steps:

[0036] (1) Grinding and drying walnut kernels, the drying temperature is 50°C, and the drying time is 30 minutes;

[0037] (2) grinding the dried walnut kernel into slurry;

[0038] (3) By weight, get 100 parts of slurry, add 12 parts of sodium carbonate, 8 parts of cellulase, 1 part of α-amylase, 6 parts of protease and 600 parts of distilled water in the slurry, stir and mix; The activity of cellulase is ≥10000 activity units / g; the activity of α-amylase is ≥4000 activity units / g; the activity of protease is ≥100000 activity units / g;

[0039] (4) Ultrasonic mixing at 60°C and 35kHz for 60 minutes, once every 5 minutes, and repeated ultrasonication twice to obtain the enzymatic hydrolysis product;

[0040] (5) Centrifuge the enzymolysis product at 20° C. at a speed of 12,000 r / min for 30 minutes, and take the centrifuged product in the upper layer to obtain walnut oil.

...

Embodiment 2

[0043] The preparation method of walnut oil comprises the following steps:

[0044] (1) Grinding and drying walnut kernels, the drying temperature is 45°C, and the drying time is 50 minutes;

[0045] (2) grinding the dried walnut kernel into slurry;

[0046] (3) By weight, get 100 parts of slurry, add 10 parts of sodium carbonate, 6 parts of cellulase, 0.6 part of α-amylase, 5 parts of protease and 500 parts of distilled water in the slurry, stir and mix; The activity of cellulase is ≥10000 activity units / g; the activity of α-amylase is ≥4000 activity units / g; the activity of protease is ≥100000 activity units / g;

[0047] (4) Ultrasonic mixing at 55°C and 32kHz for 80 minutes, ultrasonication once every 5 minutes, and repeated ultrasonication 3 times to obtain the enzymatic hydrolysis product;

[0048] (5) Centrifuge the enzymatic hydrolysis product at 23° C. at a speed of 10,000 r / min for 45 minutes, and take the centrifuged product in the upper layer to obtain walnut oil. ...

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Abstract

The invention discloses a walnut oil preparation method, which solves the technical problems of low oil yield, easy damage to nutrients and complicated process in the prior art, and belongs to the technical field of a vegetable oil preparation process. The preparation method of the walnut oil provided by the invention comprises the steps of pulverization, drying, refining, stirring, ultrasonic, enzymatic hydrolysis and centrifugation. The preparation method of the walnut oil provided by the invention has the advantages of simple process, mild condition, low energy consumption, less protein denaturation, no damage to nutrients, and high oil yield. The walnut oil prepared by the method has high unsaturated fatty acid content and good quality.

Description

technical field [0001] The invention relates to the technical field of vegetable oil preparation technology, in particular to a preparation method of walnut oil. Background technique [0002] The oil content of walnut is as high as 65% to 70%, ranking first among all woody oil plants, and has the reputation of "oil depot on trees". Walnut oil is a natural fruit oil juice produced by selecting high-quality walnuts as raw materials and adopting an oil-making process. According to analysis, the fat content of every 100 grams of walnut kernels is 63-76 grams. The main components of its fat are linoleic acid glycerides, linolenic acid and oleic acid glycerides, which are essential fatty acids for the human body. In the international market, walnut oil is known as "Oriental olive oil" and is favored by consumers just like olive oil. [0003] The current walnut oil production process includes, mechanical pressing process, organic solvent extraction process and supercritical CO ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B3/16
CPCC11B1/025C11B1/04C11B3/16
Inventor 姜殿成
Owner 临江市山花绿色食品有限公司
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