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Rapeseed peeling method used for making oil through cold pressing

A rapeseed and cold pressing technology, which is applied in the direction of fat oil/fat production, fat production, etc., can solve the problem that the method of microwave-assisted rapeseed peeling has not been found, and the peeling rate of rapeseed is small, so as to reduce the adhesion of the skin kernel and improve peeling Reasonable effect of rate and nutrient composition

Active Publication Date: 2015-09-02
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that microwaves can be used to process rapeseeds, but a method for assisting rapeseed dehulling with microwaves has not been found
Rapeseed dehulling oil production process has become a new trend in the rapeseed processing industry. There are many research reports on rapeseed dehulling and low-temperature oil extraction technology, but there are few reports specifically aimed at improving the rapeseed dehulling rate; according to research, the existing technology The rapeseed peeling rate is less than 80%

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The steps of microwave-assisted rapeseed dehulling for cold-pressed oil production are as follows:

[0026] (1) Rapeseed pretreatment

[0027] The combination of screening and winnowing is used to remove large and small impurities such as silique shells, leaves, and silt, and shriveled seeds in the raw materials to obtain pretreated rapeseed.

[0028] (2) Microwave treatment

[0029] Microwave the pretreated rapeseed, microwave processing conditions: power 1000W, time 1min, to obtain microwave rapeseed.

[0030] (3) Broken and peeled

[0031] The microwave rapeseed is added to the rapeseed peeling machine for crushing, crushing and peeling, and the broken and peeled rapeseed is obtained, and the peeling rate is 95%; the peeling rate is the percentage of the mass of the separated kernels in the total mass of rapeseed.

[0032] (4) Separation of skin and kernel

[0033] The broken and dehulled rapeseeds are successively transferred to the winnowing machine and the scr...

Embodiment 2

[0037] The steps of microwave-assisted rapeseed dehulling for cold-pressed oil production are as follows:

[0038] (1) Rapeseed pretreatment

[0039] The combination of screening and winnowing is used to remove large and small impurities such as silique shells, leaves, and silt, and shriveled seeds in the raw materials to obtain pretreated rapeseed.

[0040] (2) Microwave treatment

[0041] Microwave the pretreated rapeseed, the microwave processing conditions: power 900W, time 2min, to obtain microwave rapeseed.

[0042] (3) Broken and peeled

[0043] The microwave rapeseed is added to the rapeseed peeling machine for crushing, crushing and peeling, and the crushed and peeled rapeseed is obtained, and the peeling rate is 97%.

[0044] (4) Separation of skin and kernel

[0045] The broken and dehulled rapeseeds are successively transferred to a winnowing machine and a screening machine to separate the rapeseed skins from the rapeseed kernels to obtain dehulled rapeseed ker...

Embodiment 3

[0049] The steps of microwave-assisted rapeseed dehulling for cold-pressed oil production are as follows:

[0050] (1) Rapeseed pretreatment

[0051] The combination of screening and winnowing is used to remove large and small impurities such as silique shells, leaves, and silt, and shriveled seeds in the raw materials to obtain pretreated rapeseed.

[0052] (2) Microwave treatment

[0053] The pretreated rapeseed was treated with microwaves, and the microwave treatment conditions were: power 800W, time 3min, to obtain microwaved rapeseed.

[0054] (3) Broken and peeled

[0055]The microwave rapeseed is added to the rapeseed peeling machine for crushing, crushing and peeling, and the crushed and peeled rapeseed is obtained, and the peeling rate is 98%.

[0056] (4) Separation of skin and kernel

[0057] The crushed and peeled rapeseeds are successively transferred to the winnowing machine and the screening machine to separate the rapeseed skins from the rapeseed kernels to...

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Abstract

The invention provides a rapeseed peeling method for making oil through cold pressing and belongs to front-end procedures in a rapeseed oil making method. The rapeseed peeling method provided by the invention comprises the following steps: (1), rapeseed pre-processing, (2), microwave pre-processing, (3), crushing and peeling; (4) hull and kernel separating, (5), color sorting and peeling, and (6), oil making through cold pressing. The process is relatively simple, the investment is less, the microwave pre-processing is conducive to rapeseed crushing and peeling, hull and kernel adhesion is effectively reduced after crushing, moreover, a drying effect is played, the rapeseed peeling rate can reach 95 percent or above, and the shelling rate and the color sorting rate are both higher than 95 percent. Low temperature pressed crude oil obtained through low temperature pressing to the rapeseed kernel obtained after microwave treatment is light in color, more reasonable in nutrient substance composition, can be high-quality rapreseed oil without need of complex refining process, and meets the requirements of current consumers to green and healthy oil.

Description

technical field [0001] The invention belongs to the technical field of food processing and production, in particular to a method for removing rapeseed husks. Background technique [0002] Rapeseed is one of the most important oil crops and economic crops in my country, and its annual planting area and total output both rank first in the world. About 50% of domestic vegetable oil comes from rapeseed. In the rapeseed oil production technology, the traditional oil production process mainly includes a direct pressing process, pre-pressing-extraction process and direct leaching process, while the modern oil production process mainly refers to the extraction process after extrusion pretreatment and low temperature cold pressing process. Among them, rapeseed dehulling and cold pressing oil production is a new processing technology developed in recent years. This technology can significantly improve the quality of oil and the utilization value of cake. Compared with hot pressing, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04
Inventor 吴学凤姜绍通罗水忠潘丽军郑志
Owner HEFEI UNIV OF TECH
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