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Method for peeling almond or peach seed by freezing

A technology of peach kernels and almonds, which is applied in the field of frozen peeling of almonds or peach kernels, which can solve the problems of almonds and peach kernels, such as the influence of ingredients, poor effect, and environmental pollution, and achieve the effect of improving peeling rate, easy handling, and good quality

Inactive Publication Date: 2010-08-04
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the process of processing almonds and peach kernels, peeling has always been a difficult problem. There are two traditional peeling methods. One is peeling after soaking in lye. The ingredients are affected, and a large amount of lye is needed, causing environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: 1) After washing the almonds or peach kernels, remove the floating dust on the surface, and then soak them in warm water at 40°C until the moisture content of the almonds or peach kernels reaches 30%;

[0013] 2) Drain the soaked almonds or peach kernels and freeze them at a low temperature. The freezing temperature is -20°C and the freezing time is 5 hours;

[0014] 3) Place the frozen almonds or peach kernels in 20°C water for 40 seconds quickly, and then quickly peel the peeled or peach kernels mechanically or place the frozen almonds or peach kernels in an ultrasonic cleaner at 25°C, ultrasonic frequency 80Hz, power 200W, Ultrasonic time is 25s to take out, mechanically peeled, to obtain peeled almonds or peach kernels.

Embodiment 2

[0015] Embodiment 2: 1) After washing the almonds or peach kernels, remove the floating dust on the surface, and then soak them in warm water at 30°C until the moisture content of the almonds or peach kernels reaches 30%;

[0016] 2) Drain the soaked almonds or peach kernels and freeze them at a low temperature. The freezing temperature is -20°C and the freezing time is 6 hours;

[0017] 3) Quickly soak the frozen almonds or peach kernels in 25°C water for 35s, and then perform mechanical peeling immediately after taking them out, or place the frozen almonds or peach kernels in an ultrasonic cleaner at 28°C, ultrasonic frequency 80Hz, power 205W, ultrasonic Take it out in 20 seconds, peel it mechanically, and get peeled almonds or peach kernels

Embodiment 3

[0018] Embodiment 3: 1) After cleaning the almonds or peach kernels, remove the floating dust on the surface, and then soak them in warm water at 33°C until the moisture content of the almonds or peach kernels reaches 20%;

[0019] 2) Drain the soaked almonds or peach kernels and freeze them at a low temperature. The freezing temperature is -20°C and the freezing time is 5.5 hours;

[0020] 3) Put the frozen almonds or peach kernels in warm water at 30°C for 30s and keep them warm for 30s. After taking them out, quickly perform mechanical peeling or place the frozen almonds or peach kernels in an ultrasonic cleaner at 30°C, ultrasonic frequency 80Hz, power 200W, Ultrasonic time is 20s and taken out, mechanically peeled to obtain peeled almonds or peach kernels.

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PUM

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Abstract

The invention relates to a method for peeling an almond or a peach seed by freezing. The method comprises the following steps of: cleaning the almond or the peach seed; removing dust on the surface; soaking the almond or the peach seed in water to freeze at the lower temperature; quickly placing the frozen almond or peach seed into boiling water for heating; and taking the almond or the peach seed out, and quickly peeling the almond or the peach seed by using a machine to obtain the peeled almond or peach seed. In the method for peeling the almond or the peach seed by freezing, seed coats of the almond or the peach seed are peeled by a mechanical method and compared with the conventional technology, the method for peeling the almond or the peach seed by freezing improves peeling rate, the obtained almond or peach seed has better quality, and all the components are unmodified; and the method has the advantages of contributing to energy saving and environmental protection, satisfying the principle of sustainable development, along with no pollution, low energy consumption, and easy processing.

Description

technical field [0001] The invention belongs to the field of agricultural product processing, and in particular relates to a method for freezing and peeling almonds or peach kernels. Background technique [0002] Almonds are the dried and mature seeds of apricot and apricot, which are plants of the Rosaceae family. They are bitter in taste and warm in nature. It is rich in protein (24.7%), fat (44.8%), cellulose (12%), and contains 12% amygdalin and trace selenium in addition, and wherein, the content of calcium, potassium, phosphorus, and iron is respectively 3, 4, 6, 7 times. Almonds are not only a good source of new plant protein, but also have anti-cancer, anti-aging and other effects. Regular consumption of almonds can supplement nutrition and prevent diseases. Therefore, intensify efforts to develop curative effect, health-care type almond food has broad prospect. [0003] Peach is the third largest deciduous fruit tree in my country after apple and pear. At prese...

Claims

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Application Information

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IPC IPC(8): A23N5/08
Inventor 易建华李静娟朱振宝
Owner SHAANXI UNIV OF SCI & TECH
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