Method for peeling anacardium occidentale kernels

A cashew and nut technology, which is applied in the field of food processing, can solve the problems of difficult removal of the peel of the cashew nut, uneven shape and size of the cashew nut, and difference in the size and shape of the cashew nut, and achieves high peeling rate, good stability and practicality. strong effect

Active Publication Date: 2014-07-02
AGRI PRODS PROCESSING RES INST CHINESE ACAD OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the uneven shape and size of cashew nuts lead to large differences in the size and shape of cashew nut kernels, and the kernel and peel are closely connected, making it difficult to remove the peel of cashew nut kernels, which severely limits the development of the cashew nut processing industry

Method used

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  • Method for peeling anacardium occidentale kernels

Examples

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Comparison scheme
Effect test

Embodiment 1

[0022] 1) Put the cracked skinned nuts in a mesh tray for gradient hot air drying. The treatment process is as follows: the first stage: 85°C, drying for 10 minutes, the second stage drying temperature 75°C, drying for 10 minutes, the second stage The third stage is 60°C, and the drying time is 10 minutes. The fourth stage drying temperature is 90°C, and the drying time is 10 minutes.

[0023] 2) Cold treatment is carried out on the cashew kernels after the first drying. The present invention adopts dynamic cold air treatment, and the dynamic cold air treatment conditions: the temperature is 20°C, the treatment is 20 minutes, and the air volume is 5000m 3 / h.

[0024] 3) The cold-treated cashew kernels are subjected to water mist humidification treatment: the treatment conditions are that the humidity is controlled at 100%, the humidification temperature is controlled at 10° C., and the humidification time is controlled at 48 hours.

[0025] 4) After the humidification treatm...

Embodiment 2

[0029] 1) Put the cracked skinned nuts in a mesh tray for gradient hot air drying. The treatment process is as follows: the first stage: 70°C, drying for 40 minutes, the second stage drying temperature 60°C, drying for 40 minutes, the second stage The third stage is 50°C, and the drying time is 40 minutes. The fourth stage drying temperature is 70°C, and the drying time is 40 minutes.

[0030] 2) The cashew kernels after the first drying are subjected to cold treatment. The present invention adopts static refrigeration treatment, and the static refrigeration treatment condition is -15° C. for 5 hours.

[0031] 3) The cold-treated cashew kernels are subjected to water mist humidification treatment: the treatment conditions are that the humidity is controlled at 70%, the humidification temperature is controlled at 40° C., and the humidification time is controlled at 20 hours.

[0032] 4) After the humidification treatment, the cashew kernels are subjected to the second hot air d...

Embodiment 3

[0036] 1)) Place the shelled nuts in a mesh tray for gradient hot air drying. The treatment process is as follows: the first stage: 85°C, drying for 30 minutes, the second stage drying temperature 75°C, drying for 30 minutes, The third stage is 55°C, and the drying time is 30 minutes. The fourth stage is at 80°C, and the drying time is 30 minutes.

[0037] 2) After the first drying, the cashew kernels are subjected to cold treatment, and the dynamic cold air treatment is adopted: dynamic cold air treatment conditions: temperature -15°C, treatment for 10 minutes, and the air volume is 3000m 3 / h.

[0038] 3) The cold-treated cashew kernels are subjected to water mist humidification treatment: the treatment conditions are that the humidity is controlled at 80%, the humidification temperature is controlled at 30° C., and the humidification time is controlled at 40 h.

[0039] 4) After the humidification treatment, the cashew kernels are subjected to the second hot air drying: th...

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Abstract

The invention provides a method for peeling anacardium occidentale kernels. The method for peeling the anacardium occidentale kernels comprises the following steps that (1) gradient hot-air drying is conducted on the hulled kernels with peels; (2) cold treatment is conducted on the anacardium occidentale kernels dried in the step (1); (3) water mist humidifying treatment is conducted on the anacardium occidentale kernels processed in a cold treatment mode; (4) secondary hot-air drying is conducted on the humidified anacardium occidentale kernels; (5) mechanical scraping and air current impact are adopted for removing the peels of the anacardium occidentale kernels processed in a secondary hot-air drying mode, scraps are collected through negative pressure, and coarse products are obtained; (6) third drying is conducted on the peeled and scrap-removed anacardium occidentale kernels so as to obtain finished products.

Description

technical field [0001] The invention belongs to the field of food processing, and in particular relates to a cashew kernel peeling method. Background technique [0002] Cashew nut (Anacardium occidentale L.), an evergreen tree belonging to the family Anacardiaceae, is an important tropical dry fruit and oil tree species. Its nut is one of the world's famous four major nuts (walnut, almond and hazelnut), and is loved by people all over the world. Cashew nuts are native to the northeast of Brazil, within 10° south latitude, and were introduced to Asia and Africa in the first half of the 16th century, and have now spread to countries in East Africa and South Africa. Cashew kernels are rich in nutrients, including 47% fat, 21.1% protein, 4.6-11.2% starch, and 2.4-8.7% sugar. They also contain a variety of amino acids, vitamins, phosphorus, iron, calcium and other trace elements. Cashew nuts are mainly used to make cashew nut chocolate, snacks and high-quality preserves, and can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23N5/00
Inventor 刘义军朱德明黄茂芳黄晖静玮
Owner AGRI PRODS PROCESSING RES INST CHINESE ACAD OF TROPICAL AGRI SCI
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