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Extracting process of pine needle volatile oil of masson pine by steam distillation method

A technology of steam distillation and pine needles of masson pine, which is applied in the direction of fat oil/fat production and fat production, can solve the problems of cumbersome oil-water separation, etc., and achieve the effects of reducing production costs, high resource utilization, and increasing yield

Inactive Publication Date: 2013-07-24
刘映良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Compared with the traditional method, the ultrasonic-assisted extraction method is convenient and fast, but the oil-water separation in the later stage is very cumbersome. After testing and comparison, the oil yield is not as high as the traditional method.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Implementation 1: The collected pine needles are washed with clear water, and dried at room temperature for later use. The soaking time of pine needles is controlled at 7h, and the soaking treatment is carried out: put the pine needles cut into 5mm into the volatile oil extractor, add water (g / ml) according to the solid-liquid ratio of 1:9, mix well, and soak. Then carry out distillation and extraction: temperature 120°C, extraction for 3 hours; after the extraction is completed, collect the upper layer extract, add anhydrous sodium sulfate to remove the residual water in the extract to obtain dry and pure volatile oil. Weighed, the calculated yield was 4.815‰.

Embodiment 2

[0014] Implementation 2: The collected pine needles are washed with clear water, and dried at room temperature for later use. Control the soaking time of pine needles at 7 hours, and carry out soaking treatment: put the crushed and sieved pine needle powder into a volatile oil extractor, add distilled water at a solid-to-liquid ratio of 1:8, mix well, and soak. Then carry out distillation and extraction: temperature 150°C, extraction for 4 hours; after the extraction is completed, collect the upper layer extract, add anhydrous sodium sulfate to remove the residual water in the extract to obtain dry and pure volatile oil. Weighed, the calculated yield was 3.665‰.

Embodiment 3

[0015] Implementation 3: The collected pine needles are washed with clear water, and dried at room temperature for later use. Control the soaking time of pine needles at 7 hours, and carry out soaking treatment: put the pine needles cut into 10mm into the volatile oil extractor, add distilled water according to the solid-liquid ratio of 1:11, mix well, and soak. Then carry out distillation and extraction: temperature 200°C, extraction for 6 hours; after the extraction is completed, collect the upper layer extract, add anhydrous sodium sulfate to remove the residual water in the extract to obtain dry and pure volatile oil. Weighed, the calculated yield was 3.517‰.

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Abstract

The invention discloses an extracting process of pine needle volatile oil of masson pine by a steam distillation method. The process is characterized by comprising the following steps of: firstly, pre-treating raw materials; washing the pine needle by clean water, airing, and cutting the pine needle to 1-30mm; and respectively soaking, extracting by distillation and collecting upper volatile oil, and adding anhydrous sodium sulfate in the volatile oil to dehydrate. The process provided by the invention is high in yield of volatile oil, good in oil quality, low in energy consumption and suitable for large-scale production.

Description

technical field [0001] The invention relates to an extraction process of natural volatile oil in plants, which is suitable for extracting pure volatile oil from pine trees. Background technique [0002] At present, the extraction methods of plant volatile oil often include ultrasonic extraction, and the extraction methods of pine needle volatile oil include supercritical extraction, ultrasonic-assisted extraction, steam distillation, etc. [0003] The supercritical extraction method is more efficient than the traditional method, and the quality of the oil is better. But due to pure CO 2 The non-polar characteristics of itself greatly limit its application range. When extracting polar substances, an entrainer needs to be added. The entrainer affects the solubility and selectivity of the solvent. On the basis of a large number of experiments, it is still possible to find out the appropriate entrainer and its dosage. In addition, operating temperature and pressure are two im...

Claims

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Application Information

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IPC IPC(8): C11B1/10C11B1/04
Inventor 刘映良王委丁贵杰
Owner 刘映良
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