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

A technology of ultra-low temperature and oily bean oil, which is applied in presses, fat oil/fat production, and fat production, etc. It can solve the problems that cannot meet the production requirements of oily oil, chemical solvents have potential safety hazards, and solvents are harmful to human health. High work efficiency, low production cost, good oil quality

Inactive Publication Date: 2012-06-20
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
  • Method for pressing Cyperus esculentus oil at ultralow temperature and pressing equipment thereof

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Experimental program
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Effect test

Embodiment 1

[0036] The method for ultra-low temperature pressing oily bean oil of the present invention adopts the following steps:

[0037] a) removing impurities and sorting to remove impurities such as stones and clods mixed in the fruit of the oily bean, and then washing the bean with water to clean off the silt attached to the skin of the fruit of the bean;

[0038] b) Drying material: drying the washed oily beans, and keeping the water content in the fruit of the dried oily beans at 12%;

[0039] C) Powder: send the dried oily bean fruit into a pulverizer with a mesh size of 2.5mm×2.5mm to be pulverized into coarse grains;

[0040] d) Steaming material Add 7% water of material weight to the pulverized oily bean material, send it into a steamer and steam and fry at a temperature of 80°C to soften, and steam and fry for 12 minutes;

[0041] e) Ultra-low temperature pressing. The steamed and fried softened material is sent to the cooling device of the special pressing equipment of the p...

Embodiment 2

[0052] In the drying step b), the water content in the dried oily bean fruit is 14%; in the powder step c), the mesh size of the pulverizer screen is 2mm×3mm; in the steaming step d), oil is added before steaming and frying The moisture in the Shadou material is 6% of the material weight, the steaming and frying temperature is maintained at 85° C., and the steaming and frying time is 11 minutes; the weight ratio relationship between urea and water in the urea cooling liquid 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 temperature to be lowered at each stage is: the first stage is 46°C, the second stage is 28°C, and the third stage is 6°C. All the other are with embodiment 1.

Embodiment 3

[0054] In step d) of steaming, add the water in the oily bean material before steaming and frying to 8% of the weight of the material, keep the temperature of steaming and frying at 75°C, and the time of steaming and frying is 14 minutes; The weight ratio relationship with water is 0.5:100, and the temperature of the press chamber is kept at 15°C; during the three-stage cooling process, the temperature to be lowered at each stage is: the first stage is 52°C, the second stage is 22°C, and the third stage is 8°C. All the other are with embodiment 1.

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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 awayfrom 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 pressing oily bean oil at ultra-low temperature and oil pressing equipment specially used for the method, belonging to the technical field of food processing. Background technique [0002] Oil sedge, also known as oil sedge, belongs to Cyperaceae Cyperus, is a new type of high-quality, high-yielding herbaceous oil crop containing high fat and high sugar content. The oil content of the oily bean fruit is generally 20%-25%, up to 36%. Its oil is rich in a variety of unsaturated fatty acids and protein and amino acids with rich and high nutritional value. According to measurements, the content of unsaturated fatty acids reaches 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, etc., and have high nutritional and health value. While being rich in oil, the oily sham bean fru...

Claims

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Application Information

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