Supercritical carbon dioxide extraction method of sea-buckthorn seeds

A technology of carbon dioxide and seabuckthorn seeds, applied in the direction of fat production, fat oil/fat production, etc., can solve the problems of reduced bulk density, insufficient unfavorable extraction medium, and extended extraction cycle, so as to increase the natural accumulation volume and improve the extraction rate , the effect of shortening the extraction cycle

Active Publication Date: 2014-06-18
宝得瑞(湖北)健康产业有限公司
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  • Claims
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Problems solved by technology

However, in the supercritical carbon dioxide extraction process of seabuckthorn seeds, the temperature rise of raw seabuckthorn seeds is too large when the shell is broken, which affects the quality of seabuckthorn seed oil; on the other hand, the raw seabuckthorn seeds are too small, making them loose The bulk density is reduced, and the voids of raw materials are too small, which is not conducive to full contact with the extraction medium, which affects the extraction rate of seabuckthorn seeds and prolongs the extraction cycle
Since seabuckthorn seed oil is a valuable industrial product, a small reduction in extraction rate is a huge economic loss

Method used

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  • Supercritical carbon dioxide extraction method of sea-buckthorn seeds
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  • Supercritical carbon dioxide extraction method of sea-buckthorn seeds

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Embodiment 1

[0030] A method for supercritical carbon dioxide extraction of seabuckthorn seeds, wherein seabuckthorn seed oil is extracted from seabuckthorn seeds; the external dimensions of the raw seabuckthorn seeds are 1.6 mm to 2.8 mm, and the method adopts the following steps:

[0031] Step 1, using a mesh belt dryer to dry seabuckthorn seeds as a raw material for 3 hours, so that the water content of the raw seabuckthorn seeds is not higher than 12% by weight.

[0032] Step 2, for the dried raw seabuckthorn seeds obtained in step 1, adopt a sieve size of 3mm to remove impurities with a size greater than 3mm, and use a sieve size of 1.5mm to remove impurities with a size less than 1.5mm Impurities: This step uses a TQML type rotary sieve to screen, first use a 3mm sieve to remove impurities larger than 3mm, and then use a 1.5mm sieve to remove impurities smaller than 1.5mm.

[0033] Step 3, use the specific gravity sorting method to remove impurities with a specific gravity greater th...

Embodiment 2

[0047] This embodiment is a special case of the first embodiment.

[0048] In step 5, the period of supercritical carbon dioxide extraction is 3.5 hours.

[0049] After the supercritical carbon dioxide extraction in step 5, an average of 75.5 grams to 80 grams of sea buckthorn seed oil can be obtained per kilogram of raw sea buckthorn seeds.

[0050] The extraction period of the original process is 3.5 hours, and an average of 69-74 grams of sea-buckthorn seed oil can be obtained per kilogram of raw sea-buckthorn seeds.

[0051] Compared with the original process, this embodiment adopts the same supercritical carbon dioxide extraction cycle, and an average of 6 to 6.5 grams of seabuckthorn seed oil can be obtained per kilogram of raw seabuckthorn seeds.

[0052] When the cost of raw seabuckthorn seeds increases or the price of seabuckthorn seed oil rises, the method of this embodiment can be used to maximize the yield of seabuckthorn seed oil.

Embodiment 3

[0054] This embodiment is a special case of the first embodiment.

[0055] In step 5, the period of supercritical carbon dioxide extraction is 2.5 hours.

[0056] After the supercritical carbon dioxide extraction in step 5, an average of 70-76 grams of sea-buckthorn seed oil can be obtained per kilogram of raw sea-buckthorn seeds.

[0057] The extraction period of the original process is 2.5 hours, and an average of 64-68 grams of sea-buckthorn seed oil can be obtained per kilogram of raw sea-buckthorn seeds.

[0058] Compared with the original process, the supercritical carbon dioxide extraction method of this embodiment can obtain an average of 6-8 grams more seabuckthorn seed oil per kilogram of raw seabuckthorn seeds.

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Abstract

The invention relates to a supercritical carbon dioxide extraction method of sea-buckthorn seeds, and the method is used for extracting sea-buckthorn seed oil from raw sea-buckthorn seed materials. The method comprises the following steps: drying the raw sea-buckthorn seed materials, removing impurities from the raw sea-buckthorn seed materials, breaking the hulls of the raw sea-buckthorn seed materials and extracting the sea-buckthorn seed oil, wherein the husks of the hulled raw sea-buckthorn seed materials are partially connected, the inner kernels of the hulled raw sea-buckthorn seed materials are opened and exposed, the temperature of the sea-buckthorn seeds is not higher than 50 DEG C during a hull breaking process, and the loose stacking density of the hulled raw sea-buckthorn seed materials is 1.25-1.3 times that of the unhulled raw sea-buckthorn seed materials. The method disclosed by the invention has the beneficial effects of reducing the temperature of the raw sea-buckthorn seed materials during the hull breaking process and guaranteeing the quality of the sea-buckthorn seed oil; the hulled raw sea-buckthorn seed materials are fluffy and the natural stacking volume is increased and thus the sea-buckthorn seeds are in full contact with an extracting medium during the supercritical carbon dioxide extraction process of the sea-buckthorn seeds, so that the extraction yield is increased, the extraction period is shortened and a remarkable benefit is achieved.

Description

technical field [0001] The invention belongs to a method for extracting seabuckthorn seed oil, in particular to a method for extracting seabuckthorn seed supercritical carbon dioxide. Background technique [0002] Supercritical carbon dioxide extraction technology has the advantages of high extraction rate, high purity and good product quality. Seabuckthorn seed oil is a valuable industrial product extracted from seabuckthorn seeds. In order to ensure product quality and yield, supercritical carbon dioxide extraction technology has been widely used. However, in the supercritical carbon dioxide extraction process of seabuckthorn seeds, the temperature rise of raw seabuckthorn seeds is too large when the shell is broken, which affects the quality of seabuckthorn seed oil; on the other hand, the raw seabuckthorn seeds are too small, making them loose The bulk density decreases, and the raw material gap is too small, which is not conducive to full contact with the extraction me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10C11B1/04
Inventor 徐建波王大鹏户红光
Owner 宝得瑞(湖北)健康产业有限公司
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