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Method for preparing walnut oil by aqueous enzymatic method

A technology of walnut oil and water enzymatic method, which is applied in the directions of fat oil/fat production, fat oil/fat refining, and recovery of fatty substances, etc., can solve the problems of low oil yield and many steps, and achieves improved degreasing rate, good crushing effect, The effect of reducing contact

Pending Publication Date: 2022-08-09
HEBEI YANGYUAN ZHIHUI BEVERAGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Therefore, the technical problem to be solved in the present invention is to overcome the defects of numerous steps and low oil yield in the prior art, thereby providing a method for preparing walnut oil by aqueous enzymatic method

Method used

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  • Method for preparing walnut oil by aqueous enzymatic method
  • Method for preparing walnut oil by aqueous enzymatic method
  • Method for preparing walnut oil by aqueous enzymatic method

Examples

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Effect test

Embodiment 1

[0049] The present embodiment provides a method for preparing walnut oil by water enzymatic method, and the specific steps are as follows:

[0050] Step 1: Choose 500g of walnut kernels with full particles, no mildew, no oily smell, no pests, and no impurities.

[0051] Step 2: prepare an alkaline aqueous solution with a mass concentration of 4‰, add walnut kernels after boiling, time for 25 minutes, rinse the alkali-boiled walnut kernels with water, and after rinsing, the obtained peeled walnut kernels have a moisture content of 20%.

[0052] Step 3: Using a colloid mill to crush the pretreated walnut kernels without adding water, and the particle size of the walnut kernels after crushing does not exceed 900 μm.

[0053] Step 4: Add water to the crushed walnut kernels to prepare walnut pulp, and the mass ratio of walnut kernels to water is 1:3.

[0054] Step 5: heating the walnut pulp to 50°C, adding alkaline protease, stirring and mixing, the amount of alkaline protease add...

Embodiment 2

[0057] The present embodiment provides a method for preparing walnut oil by water enzymatic method, and the specific steps are as follows:

[0058] Step 1: Choose 500g of walnut kernels with full particles, no mildew, no oily smell, no pests, and no impurities.

[0059] Step 2: prepare an alkaline aqueous solution with a mass concentration of 4‰, add walnut kernels after boiling, time for 25 minutes, rinse the alkali-boiled walnut kernels with water, and after rinsing, the obtained peeled walnut kernels have a moisture content of 20%.

[0060] Step 3: Using a colloid mill to crush the pretreated walnut kernels without adding water, and the particle size of the walnut kernels after crushing does not exceed 900 μm.

[0061] Step 4: Add water to the crushed walnut kernels to prepare walnut pulp, and the mass ratio of walnut kernels to water is 1:3.

[0062] Step 5: Heat the walnut pulp to 50°C, add papain, stir and mix, and the amount of papain added is 3‰ of the mass of the wal...

Embodiment 3

[0065] The present embodiment provides a method for preparing walnut oil by water enzymatic method, and the specific steps are as follows:

[0066] Step 1: Choose 500g of walnut kernels with full particles, no mildew, no oily smell, no pests, and no impurities.

[0067] Step 2: prepare an alkaline aqueous solution with a mass concentration of 4‰, add walnut kernels after boiling, time for 25 minutes, rinse the alkali-boiled walnut kernels with water, and after rinsing, the obtained peeled walnut kernels have a moisture content of 20%.

[0068] Step 3: Using a colloid mill to crush the pretreated walnut kernels without adding water, and the particle size of the walnut kernels after crushing does not exceed 900 μm.

[0069] Step 4: Add water to the crushed walnut kernels to prepare walnut pulp, and the mass ratio of walnut kernels to water is 1:3.

[0070] Step 5: heating the walnut pulp to 50°C, adding neutral protease, stirring and mixing, the amount of neutral protease added...

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Abstract

The invention relates to the technical field of food, in particular to a method for preparing walnut oil by an aqueous enzymatic method, which comprises the following steps: under the condition of not adding water, crushing pretreated walnut kernels until the particle size of the crushed walnut kernels is less than or equal to 900 microns; adding water into the crushed walnut kernels to prepare walnut pulp; carrying out enzymolysis on the walnut pulp by using an aqueous enzymatic method; according to the method provided by the invention, the enzymolysis efficiency is greatly improved, and the final oil yield is up to 70% or above.

Description

technical field [0001] The invention relates to the technical field of food, in particular to a method for preparing walnut oil by an aqueous enzymatic method. Background technique [0002] At present, the common methods in the current production of walnut oil mainly include: [0003] (1) Pressing method: It is the most commonly used method in the current production of walnut oil, and it is also a relatively mature walnut oil extraction method. He mainly uses the principle of mechanical pressing to squeeze out the oil in the raw materials at one time. Typically, the machinery used includes screw presses and hydraulic presses. The denaturation temperature of walnut protein is 67.5 ℃. According to the degree of denaturation of walnut protein, mechanical pressing can be divided into cold pressing and hot pressing. Generally speaking, the hot pressing method uses a screw press; the cold pressing method uses a hydraulic press. Cold pressing, using physical pressing method to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/00C11B1/02C11B1/04C11B3/00
CPCC11B1/00C11B1/025C11B1/04C11B3/001Y02W30/74
Inventor 夏君霞赵慧博齐兵路敏戴胜兴高飞
Owner HEBEI YANGYUAN ZHIHUI BEVERAGE
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