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Method for pressing Cyperus esculentus oil at ultralow temperature and pressing equipment thereof

An ultra-low temperature, oil pressing technology, used in presses, fat oil/fat production, fat production, etc., can solve problems such as failure to meet the production requirements of oilseed soybean oil, potential safety hazards of chemical solvents, and solvents harmful to human health, etc. High efficiency, low production cost and good oil quality

Inactive Publication Date: 2013-03-20
韩城市广新农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is easy to destroy the nutrients contained in the oil, and the residual solvent is harmful to human health. In addition, a large amount of residual chemical solvents also have potential safety hazards.
The supercritical extraction method does not destroy the original components in the oil, and has no chemical residues. It is safe and efficient, but its production cost is too high, and the cost of producing a ton of oily soybean oil is as high as ten thousand yuan
Existing methods for preparing oily soybean oil cannot meet people's requirements for the preparation of oily soybean oil

Method used

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  • Method for pressing Cyperus esculentus oil at ultralow temperature and pressing equipment thereof
  • Method for pressing Cyperus esculentus oil at ultralow temperature and pressing equipment thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] The method for squeezing sago oil at ultra-low temperature of the present invention adopts the following steps:

[0037] a) Removal and sorting to remove impurities such as stones and soil in the Cyperus esculentus fruit, and then wash the Cyperus esculentus with water to remove the sediment attached to the epidermis of the Cyperus esculentus fruit;

[0038] b) The drying material is used to dry the washed Cyperus esculentus, and the moisture content of the Cyperus edulis fruit remains 12% after drying;

[0039] C) Powder material: Send the dried cedar fruit into a pulverizer with a mesh size of 2.5mm×2.5mm and pulverize into coarse particles;

[0040] d) Steaming material: Add 7% of the water content by weight of the material to the crushed cedar material, and send it to the steamer for steaming and softening at a temperature of 80°C, and the steaming time is 12 minutes;

[0041] e) Ultra-low temperature squeezing. The steamed and softened material is sent to the cooling device ...

Embodiment 2

[0052] In the drying step b), the moisture content in the cedar fruit is 14% after drying; the mesh size of the pulverizer in the powder step C) is 2mm×3mm; in the steaming step d), the oil is added before the steaming The moisture in the sago pea material is 6% of the material weight, the steaming temperature is maintained at 85°C, and the steaming time is 11 minutes; the ratio of urea to water in the urea cooling solution in the ultra-low temperature pressing step e) is 1.2: 100. The temperature of the press chamber is maintained at 25°C; during the three-stage cooling process, the temperatures to be reduced to each stage are: 46°C at the first stage, 28°C at the second stage, and 6°C at the third stage. The rest is the same as in Example 1.

Embodiment 3

[0054] In the steaming step d), the moisture added to the cedar bean material before steaming is 8% of the weight of the material, the steaming temperature is maintained at 75°C, and the steaming time is 14 minutes; the urea in the urea cooling liquid in the ultra-low temperature pressing step e) The ratio of weight to water is 0.5:100, and the temperature of the squeezing chamber is maintained at 15°C; during the three-stage cooling process, the temperatures to be reduced to each stage are: first-stage 52°C, second-stage 22°C, and third-stage 8°C. The rest is the same as in Example 1.

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PUM

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Abstract

The invention relates to a method for pressing Cyperus esculentus oil at an ultralow temperature and dedicated pressing equipment for the method. The pressing method comprises the following steps of: removing impurities, oven-drying, powdering, steaming, pressing at an ultralow temperature, separating oil from sugars, and filtering, to obtain the purified pressed oil of Cyperus esculentus. The dedicated pressing equipment comprises a frame, a driving motor, a pressing device, a feeder, a large gear case, a power transfer transmission device, a cooling device and a cooling power transmission device. The pressing spiral shaft of the pressing device is a hollow shaft, the cooling cylinder of the cooling device is provided with a cooling interlayer, and the hollow pressing spiral shaft, the cooling interlayer of the cooling cylinder, a liquid reservoir and connecting pipes form a cooling circulation system. The urea cooling liquid is circulated in the circulation system to carry heat away from the cooling cylinder and the pressing chamber, so as to ensure that the Cyperus esculentus material is processed under the ultralow temperature (10 DEG C to 28 DEG C) condition all the time in the pressing process and thus to achieve mechanical pressing production of Cyperus esculentus oil.

Description

Technical field [0001] The invention relates to a method for squeezing sago oil at an ultra-low temperature and a squeezing equipment dedicated to the method, and belongs to the technical field of food processing. Background technique [0002] Cyperus edulis, also known as Cyperus edulis, belongs to the Cyperaceae Cyperus genus. It is a new type of high-quality and high-yield herbal oil crop with high oil and sugar content. The oil content of Cyperus edulis fruit is generally 20%-25%, up to 36%. The oil is rich in a variety of unsaturated fatty acids and protein and amino acids with rich nutritional value. According to measurements, the content of unsaturated fatty acids is 80 % Or more, of which oleic acid and linoleic acid are the main components, which have unique effects on reducing blood lipids, preventing cardiovascular diseases and promoting body metabolism, and have extremely high nutritional and health value. While rich in oil, the cedar fruit also contains 15-20% polys...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B30B9/02C11B1/00
Inventor 王广新
Owner 韩城市广新农业科技有限公司