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Method for extracting dogwood kernel oil

A technology of cornel seed and extraction method, which is applied in the direction of fat oil/fat production, fat oil/fat refining, and fat production, and can solve the problems of low oil yield, low production efficiency, and low oil purity

Active Publication Date: 2014-03-05
江学忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the extraction technology of dogwood kernel oil is relatively rare. The traditional extraction methods mainly include pressing method and leaching method. The pressing method is suitable for plant seeds with high oil content, and the equipment investment is large, the oil yield is low, and the waste of resources is large; The leaching method is suitable for oils with an oil content of less than 20%. Its disadvantages are firstly that the production efficiency is low, and secondly that solvents need to be added, resulting in low purity of the extracted oils and a large consumption of solvent resources. It is difficult to realize the production of pure natural oils, and the cost higher
The patent application No. 201210232359.2 discloses a method for extracting cornel kernel oil. Although it has high production efficiency and oil yield, it is still difficult to overcome the defects of the above-mentioned leaching method.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The extraction of present embodiment cornus officinalis kernel oil is to carry out as follows:

[0023] From the acquired raw cornus cornus pits, artificially screen the cornus cornus pits without mildew pollution; pass through a stainless steel sieve with a hole diameter of 3mm, remove the sand particles with a diameter of less than 3mm, and then manually pick out the stones with a diameter greater than 3mm; rinse with clean water Clean, in which the water temperature is controlled at 18°C-20°C, and the rinsing time is controlled at 10 minutes. Then put the rinsed dogwood core into the oven with the required volume, spread the dogwood core on the oven tray, adjust the oven temperature to 45°C, and set a timer for 15 minutes to remove the moisture from the cornel core surface. After the surface moisture of the dogwood core is removed , when the dogwood core begins to emit a clear fragrance, it is certain that the water on the surface has completely evaporated. Then, ad...

Embodiment 2

[0025] The extraction method of cornus officinalis seed oil of present embodiment is basically the same as embodiment 1, and difference only is:

[0026] The rinsing time is 15 minutes; the drying temperature is 45°C, and the drying time is 10 minutes; the temperature for the first heating to denature the core shell of Cornus officinalis is 85°C, and the time is 25s; the shrinkage denaturation temperature of the cell nucleus is 10°C, and the holding time is 12h; The temperature of the second rapid cell expansion is 95°C, and the time is 15s; the crushed particle size of Cornus officinalis is 50nm; For cornus oil, the pressing pressure is 0.4MPa.

Embodiment 3

[0028] The extraction method of cornus officinalis seed oil of present embodiment is basically the same as embodiment 1, and difference only is:

[0029] The rinsing time is 13 minutes; the drying temperature is 47°C, and the drying time is 13 minutes; the temperature for the first heating to denature the core shell of Cornus officinalis is 80°C, and the time is 30s; the shrinkage temperature of the nucleus is 5°C, and the holding time is 10h; The temperature of the second rapid cell expansion is 90°C, and the time is 17s; the crushed particle size of Cornus officinalis is 0.5nm; When pressing dogwood oil, the pressing pressure is 0.5MPa.

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Abstract

The invention discloses a method for extracting dogwood kernel oil. The method comprises the following steps: preparing materials, drying, modifying for the first time, modifying for the second time, modifying for the third time, grinding, modifying for the fourth time, primarily separating, squeezing, ultrasonically removing impurities, and filtering in vacuum. According to the method, dogwood kernel cells are destroyed and modified for multiple times by adopting a pure physical method, so that fatty acids and other beneficial ingredients completely overflow and the final oil yield is high; no chemical preparations are added in the method, so that the pure natural property of the dogwood kernel oil used as raw materials of foods and drugs is ensured and no toxic side effects on a human body are caused; the method is short in production cycle, high in production efficiency and completely suitable for large-scale industry production, and achieves the purposes of turning dogwood kernels into wealth and fully utilizing the dogwood kernels.

Description

technical field [0001] The invention belongs to the technical field of oil refining, and in particular relates to a method for extracting cornel kernel oil. Background technique [0002] Cornus officinalis is sour in nature and flavor, astringent, slightly warm, and returns to the liver and kidney meridians, and has the effects of nourishing the liver and kidney, astringent essence and detoxification. It is used for vertigo and tinnitus, soreness of waist and knees, impotence and nocturnal emission, enuresis, frequent urination, metrorrhagia, profuse sweating, prostration, internal heat and quenching thirst. Up to now, the medicinal use of dogwood is to take its skin and flesh, discard its core, and the weight of the core accounts for more than 80% of the fruit of dogwood, so pharmaceutical companies have to be troubled by the disposal of a large number of discarded dogwood cores every year. Recently, relevant researches have shown that the core of Cornus officinalis and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B1/06C11B3/00
Inventor 江学忠郭武华
Owner 江学忠