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Rapeseed oil pressing method

A technology of rapeseed and fried seeds, which is applied in the production of fat oil/fat, refining of fat oil/fat, and fat production, can solve the problems of being unsuitable for mass production, poor oil and cake quality, etc. Effect

Inactive Publication Date: 2015-09-16
DONGZHI HENGYUAN IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The traditional rapeseed oil production process mainly adopts one-time direct pressing technology. The main preparation steps are rapeseed-cleaning-softening-rolling-rolling-steaming-squeezing-pressing-crude oil-filtering-clear oil, but in this process the oil is not It has not been extracted to the maximum extent, and the quality of oil and cake obtained at the same time is poor, which is not suitable for mass production

Method used

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  • Rapeseed oil pressing method

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Effect test

Embodiment 1

[0024] A method for extracting rapeseed oil, the preparation steps are as follows:

[0025] 1) washing with water, washing the rapeseed with water, and then drying;

[0026] 2) Refrigeration, the rapeseed is sent to the cold storage for three refrigeration treatments, the first refrigeration temperature is -25 ° C, the refrigeration time is 12 hours, and then the refrigerated rapeseed is dried; the second refrigeration step is the refrigerated and dried rapeseed. The rapeseed was subjected to secondary refrigeration treatment, followed by drying treatment, the refrigeration temperature was -20°C, and the storage time was 5 hours; three refrigeration steps, the refrigerated and dried rapeseed was subjected to secondary refrigeration treatment, and then dried. The refrigeration temperature is -10°C, and the refrigeration time is 2 hours;

[0027] 3) frying seeds, performing frying treatment on the rapeseed after the treatment in step 2), so that the surface temperature of the r...

Embodiment 2

[0035] A method for extracting rapeseed oil, the preparation steps are as follows:

[0036] 1) washing with water, washing the rapeseed with water, and then drying;

[0037] 2) Refrigeration, the rapeseed is sent to the cold storage for three refrigeration treatments, the first refrigeration temperature is -30 ° C, the refrigeration time is 15 hours, and then the refrigerated rapeseed is dried; the second refrigeration step is the refrigerated and dried The rapeseed was subjected to secondary refrigeration treatment, followed by drying treatment, the storage temperature was -25°C, and the storage time was 10 hours; three refrigeration steps, the refrigerated and dried rapeseed was subjected to secondary refrigeration treatment, followed by drying treatment, The refrigeration temperature is -20°C, and the refrigeration time is 5 hours;

[0038] 3) frying seeds, performing frying treatment on the rapeseed after the treatment in step 2), so that the surface temperature of the ra...

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Abstract

The invention discloses a rapeseed oil pressing method. The method includes washing, refrigeration, seed frying, crushing, oil pressing, filtration, sedimentation, carburetion treatment, stratification and other steps, and through the steps, a finished product can be obtained. In the screening process, three-sieve treatment is employed to make the residual oil amount of the cake reach the lowest, also the cake quality can be higher, and paddy is added in the oil pressing process so as to extract oil from rapeseeds maximumly. In the carburetion treatment process, the upper layer oil in the carburetion pool is taken as the refined oil product, thus effectively improving the oil quality. Brine is placed into the carburetion pool to reach a dephosphorization effect, and the obtained refined oil product has high quality.

Description

technical field [0001] The invention relates to a method for extracting rapeseed oil. Background technique [0002] The traditional rapeseed oil production process mainly adopts one-time direct pressing technology. The main preparation steps are rapeseed-cleaning-softening-rolling-rolling-steaming-squeezing-pressing-crude oil-filtering-clear oil, but in this process the oil is not It has not been extracted to the maximum extent, and the oil and cake obtained at the same time are of poor quality, which is not suitable for mass production. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for extracting rapeseed oil, which has the technology of maximizing the oil content in the extracted rapeseed and obtains high-quality oil and high-quality cake. [0004] In order to solve the above problems, the technical solution of the present invention is a method for extracting rapeseed oil, the preparation steps of w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/06C11B1/04C11B3/00
Inventor 夏柱忠
Owner DONGZHI HENGYUAN IND & TRADE