Extraction method of eucommia seed oil

A technology of Eucommia ulmoides seed oil and an extraction method, which is applied in the directions of fat oil/fat production, fat production, etc., can solve the problems of large waste, low utilization rate of raw materials, and high cost, and achieves cost reduction, full utilization of raw materials, and low residual oil rate. Effect

Inactive Publication Date: 2013-05-08
LINGBAO JINDI EUCOMMIA IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cold pressing process is simple and the equipment is versatile, but the cold pressing method produces eucommia seed oil, the oil yield of the eucommia seed kernel is only about 18%, the residual oil content in the eucommia meal is about 10%, and the utilization rate of raw materials is low , a big waste
CO 2 The oil yield of the supercritical extraction process is high, but the cost is too high. The current market price is between 14,000 and 16,000 yuan per ton of Eucommia ulmoides kernels and meal with an oil content of about 10%. 30% of eucommia seeds need to be repeatedly extracted, and the processing cost per ton of eucommia seeds is between 42,000 and 48,000 yuan, which is too high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for extracting eucommia seed oil, first shelling 1000g eucommia seed kernels, cold pressing, then crushing the cold-pressed seed meal to pass through a 20-mesh sieve and subjecting it to CO 2 Supercritical extraction, 29.5g of eucommia seed oil obtained by combining cold pressing and extraction. Eucommia ulmoides seed oil is clear and transparent, with good fluidity and a color value of 8:2 (yellow-red).

[0018] The oil content of the raw material Eucommia ulmoides kernels is 30%, the impurity content is 3%, and the water content is 9%. It is cold-pressed once, and the temperature of the press chamber is 90°C, the oil yield of the cold-press is 18.6%, and the residual oil of the seed meal is 11%. %, the color is black. CO 2 During supercritical extraction, the pressure is 32MPa, the temperature is 20°C, the outlet pressure is 8.5MPa, the outlet temperature is 50°C, the time is 3.5h, and the extraction rate is 83%.

Embodiment 2

[0020] A method for extracting eucommia seed oil, first shelling 1000g eucommia seed kernels, cold pressing, then crushing the cold-pressed seed meal to pass through a 20-mesh sieve and subjecting it to CO 2 Supercritical extraction, combined cold pressing and extraction of eucommia seed oil, a total of 30.5g, eucommia seed oil is clear and transparent, good fluidity, red color, color value 7:3 (yellow red).

[0021] The oil content of the raw material Eucommia ulmoides seeds is 30%, the impurity content is 3%, and the water content is 9%. It is cold-pressed once, and the temperature of the press chamber is 80°C, the oil yield of the cold-press is 18%, and the residual oil of the seed meal is 11.5% %, the color is reddish brown. CO 2 During supercritical extraction, the pressure is 30MPa, the temperature is 24°C, the outlet pressure is 8MPa, the separation temperature is 55°C, the time is 4h, and the extraction rate is 84.5%.

Embodiment 3

[0023] A method for extracting eucommia seed oil, first shelling 1000g eucommia seed kernels, cold pressing, then crushing the cold-pressed seed meal to pass through a 20-mesh sieve and subjecting it to CO 2 Supercritical extraction, eucommia seed oil obtained by combining cold pressing and extraction, a total of 29.5g, eucommia seed oil is clear and transparent, with good fluidity.

[0024] The oil content of the raw material Eucommia ulmoides seeds is 30%, the impurity content is 3%, and the water content is 9%. After one cold press, the temperature of the press chamber is 85°C, the oil yield of the cold press is 18.3%, and the residual oil of the seed meal is 11.3% %, the color is brown. CO 2 During supercritical extraction, the pressure is 34MPa, the temperature is 16°C, the outlet pressure is 9.0MPa, the outlet temperature is 45°C, the time is 3h, and the extraction rate is 84%.

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Abstract

The invention relates to an extraction method of eucommia seed oil. The extraction method comprises the following steps of: firstly peeling and carrying out cold-pressing on an eucommia seed kernel; then smashing cold-pressed seed meal, and carrying out CO2 supercritical extraction; and merging cold-pressing and extraction to obtain the eucommia seed oil. The extraction method of the eucommia seed oil has the advantages of low residual oil ratio, sufficient raw material utilization and low extraction cost.

Description

technical field [0001] The invention relates to a method for extracting eucommia seed oil. Background technique [0002] Eucommia ulmoides kernels are long solids of (0.2-0.3) cm*(2-3) cm, with a total oil content of about 30%, which can be used to extract eucommia seed oil. The current market price of eucommia seed oil is 3 million yuan / ton. The traditional extraction process of Eucommia ulmoides seed oil mainly consists of the following two methods: one is to directly cold-press Eucommia ulmoides seed oil to obtain eucommia ulmoides seed oil; 2 The crude oil of Eucommia ulmoides seed oil was obtained by supercritical extraction. The cold pressing process is simple and the equipment is versatile, but the cold pressing method produces eucommia seed oil, the oil yield of the eucommia seed kernel is only about 18%, the residual oil content in the eucommia meal is about 10%, and the utilization rate of raw materials is low , a big waste. CO 2 The oil yield of the supercri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/06C11B1/10C11B1/04
Inventor 王昌华邵战坡周晓波贠忠学焦瑞轩孟社超杨红星龚美张璇璇邵云海王晓磊
Owner LINGBAO JINDI EUCOMMIA IND
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