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Method for continuously peeling plant fruit nut skin

A nut cell and plant technology, which is applied to the field of continuous peeling of plant nut afterscaping, can solve the problems of oil precipitation or scorching of nuts, inability to realize automation of production, unsatisfactory peeling effect, etc., so as to improve peeling efficiency, Achieving the effect of safe production and simple method

Active Publication Date: 2013-12-04
YUNNAN MOER GARDEN BIOLOGICAL SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The effect of peeling by baking and hot soup is not ideal. Improper baking can easily cause the oil of the nuts to separate out or be scorched, thus affecting the quality of the nuts.
Although the lye soaking method has a good peeling effect, the process is complicated, the manual operation efficiency is low, and production automation cannot be realized. Therefore, there is also the problem of unstable peeling effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0020] The inversion described in steps A, B, C and D is completed in a drum-type device, and a 360° inversion is realized at a rotating speed of 20 to 200 rpm.

[0021] The inner wall of the drum-type device is equipped with a stirring or kneading device, which realizes synchronous stirring or kneading as the drum turns over, so that the nuts are soaked and rinsed evenly and fully, and the best treatment effect is achieved.

[0022] The hot water mentioned in step A is sprayed into the softening device with a water volume of 1~30m3 / min. The hot alkaline water described in step B is sprayed into the soaking device with a water volume of 1-30m3 / min. This ensures that hot water or hot alkaline water can produce the effects of pressure washing and rubbing on the nuts, accelerate the softening of the nut shell, separate the nuts, and improve the soaking efficiency.

[0023] The edible alkali described in the B step is Na 2 CO 3 or Ca(OH) 2 Any one or combination of more than o...

Embodiment 1

[0031] Taking walnuts as an example, the walnut kernels that have been removed from impurities are sent to a softening device, continuously turned over and soaked in a hot water environment at 60°C for 2 minutes to soften the aftercoat of the nuts; Spray into the softening unit. The softened walnut kernels are sent into the soaking device, soaked in edible lye at 60°C, turned over, and rubbed for 2 minutes, so that the aftercoat of the nuts is separated; the edible alkali is Na 2 CO 3 , the lye concentration is (weight ratio) 20g / kg, and the hot lye water is sprayed into the soaking device at a water volume of 1m3 / min. Send the walnut kernels from which the body coat has been removed into a high-pressure washing device, and under the action of a 0.6Mpa jet of water, rinse for 2 minutes while turning over to remove the body coat of the nuts. The walnut kernels separated from the aftercoat are sent to the circulation rinsing device, under the action of 0.1Mpa jet water, they a...

Embodiment 2

[0033] Taking almonds as an example, send the almonds that have been removed from impurities into the softening device, continuously turn them over and soak them in a hot water environment at 90°C for 10 minutes, and soften the aftercoat of the nuts; the hot water is sprayed at a water volume of 30m3 / min Enter the softening unit. Put the softened almonds into the soaking device, soak in 90°C edible lye, turn over, and rub the skin for 10 minutes to separate the aftercoat of the nuts; the edible alkali is Ca(OH) 2 , the concentration of lye is (weight ratio) 200g / kg; hot lye is sprayed into the soaking device at a water volume of 30m3 / min. Send the almonds that have been detached from the aftercoat to a high-pressure washing device, and under the action of a 5Mpa jet of water, rinse them for 10 minutes while turning them over to remove the aftercoat of the nuts. The almonds separated from the aftercoat are sent to the circulation rinsing device, under the action of 0.4Mpa jet ...

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PUM

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Abstract

The invention discloses a method for continuously peeling plant fruit nut skin, which comprises the working procedures of softening skins, dipping for peeling, separating the skins, circularly rinsing, and centrifugally dewatering and specifically comprises the working procedures of: feeding fruit nuts of which impurities are removed into a dipping device; dipping in hot water at the temperature of 60-90DEG C for 2-10 minutes in a turning over manner; dipping in an edible alkali liquor for 2-10 minutes; injecting water flows at 0.6-5MPa to rinse for 2-10 minutes to separate the skins; injecting the water flow at 0.1-0.4MPa for 2-10 minutes to remove the alkali liquor; and centrifugally dewatering for 1-15 minutes to finish the operation of peeling the skins. Because the method comprises the working procedures of softening the skins, dipping for peeling, separating the skins, circularly rinsing, and centrifugally dewatering, the fruit nut skin peeling efficiency is greatly improved, and continuous automated production is realized. The sealing action is realized, the safe production is realized, and the labor intensity of workers is lowered. The processing quality of the fruit nuts is guaranteed to be stable, and influences on the peeling effect by the manual factor are eliminated. The method is simple and convenient, is stable and stable in work and is suitable for processing and producing high-quality fruit nut products.

Description

technical field [0001] The invention belongs to the technical field of food processing, and in particular relates to a method for continuous peeling of plant nut shells. Background technique [0002] Nuts belong to a category of closed fruits, with hard peels, usually containing 1 fruit in the peel, such as chestnuts, walnuts, hazelnuts, pine nuts, etc. Plant nuts, commonly known as nuts, are rich in protein, oil, minerals, vitamins and other ingredients that are beneficial to the human body. They have excellent effects on human growth and development, strengthening physical fitness, and preventing diseases. With the improvement of people's living standards, the demand for deep-processed nuts is increasing. There is a thin film on the surface of nuts, commonly known as afterbirth, and removal of afterbirth is a necessary process for deep processing of nuts. The prior art methods for removing nut shell coatings mainly include roasting and peeling methods, hot soup peeling m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23N5/08A23N5/01A23N7/01
Inventor 邢开国张跃进杨文
Owner YUNNAN MOER GARDEN BIOLOGICAL SCI & TECH DEV