Extraction method for peony essential oil

A technology of peony essential oil and extraction method, which is applied in the direction of essential oil/fragrance, fat production, etc., can solve the problems of organic solvent residue, low effective extraction rate, difference between the aroma of the extract and the fragrance of flowers, etc., to prevent the use of allergies, non-toxic Solvent pollution, effect of maintaining natural fragrance

Inactive Publication Date: 2018-05-11
龙里县泽洋生态科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional methods of extracting essential oils from plant flowers are mostly solution extraction and water decoction. These extraction methods will affect the unstable components in flowers to a certain extent, resulting in the difference between the aroma of the extract and the aroma of flowers. In addition, its effective extraction rate is not high, and there are organic solvent residues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A method for extracting peony essential oil, comprising the steps of:

[0014] (1) Extraction, picking peony flowers, using supercritical carbon dioxide fluid as the extraction solvent, extraction pressure 25Mpa, extraction temperature 50°C, separator I pressure 16Mpa, temperature 54°C, separator II pressure 8Mpa, temperature 19°C, extraction time Extraction and preparation of peony extract under the condition of 3h;

[0015] (2) Molecular distillation, under the conditions of feed temperature 50°C-70°C, distillation temperature 125°C, vacuum degree 45Pa, flow rate of peony extract 250ml / h, speed of scraping film 380r / min, cooling temperature 23°C, in The primary peony essential oil is extracted from the peony extract by molecular distillation in the distiller;

[0016] (3) Add auxiliary materials, add an auxiliary material whose weight accounts for 1% of the primary peony essential oil to the primary peony essential oil, and the auxiliary material is a mixture of purs...

Embodiment 2

[0019] A method for extracting peony essential oil, comprising the steps of:

[0020] (1) Extraction, picking peony flowers, using supercritical carbon dioxide fluid as the extraction solvent, extraction pressure 25Mpa, extraction temperature 50°C, separator I pressure 16Mpa, temperature 54°C, separator II pressure 8Mpa, temperature 19°C, extraction time Extraction and preparation of peony extract under the condition of 3h;

[0021] (2) Molecular distillation, under the conditions of feed temperature 50°C, distillation temperature 120°C, vacuum degree 35Pa, flow rate of peony extract 200ml / h, speed of scraping film 370r / min, cooling temperature 23°C, in the distiller Extract primary peony essential oil from peony extract by molecular distillation;

[0022] (3) Add auxiliary materials, add an auxiliary material whose weight accounts for 1% of the primary peony essential oil to the primary peony essential oil, and the auxiliary material is a mixture of purslane extract and hone...

Embodiment 3

[0025] A method for extracting peony essential oil, comprising the steps of:

[0026] (1) Extraction, picking peony flowers, using supercritical carbon dioxide fluid as the extraction solvent, extraction pressure 25Mpa, extraction temperature 50°C, separator I pressure 16Mpa, temperature 54°C, separator II pressure 8Mpa, temperature 19°C, extraction time Extraction and preparation of peony extract under the condition of 3h;

[0027] (2) Molecular distillation, under the conditions of feed temperature 70°C, distillation temperature 130°C, vacuum degree 55Pa, flow rate of peony extract 300ml / h, speed of scraping film 390r / min, cooling temperature 23°C, in the distiller Extract primary peony essential oil from peony extract by molecular distillation;

[0028] (3) Add auxiliary materials, add an auxiliary material whose weight accounts for 1% of the primary peony essential oil to the primary peony essential oil, and the auxiliary material is a mixture of purslane extract and hone...

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PUM

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Abstract

The invention discloses an extraction method for peony essential oil. The extraction method comprises the following steps: (1) extraction; (2) molecular distillation; and (3) addition of an auxiliarymaterial. The extraction method of the invention adopts a supercritical carbon dioxide fluid to extract the peony essential oil, and finally, the peony essential oil can be naturally separated from carbon dioxide, so the natural fragrance of peony flowers can be maintained, solvent pollution is avoided, and the extraction rate of active ingredients can be improved; and the auxiliary material, i.e., a mixture of purslane extract and honey is added to prevent allergies in the use of the peony essential oil, and the quality of the peony essential oil is effectively improved.

Description

technical field [0001] The invention relates to the field of plant essential oil extraction, in particular to a method for extracting peony essential oil. Background technique [0002] Peony flower is beautiful in large size and bright in color. It is graceful, luxurious and luxurious. It is known as the king of flowers and is one of the traditional precious flowers in our country. Peony has a rich and beautiful aroma, and peony essential oil extracted from peony flowers is widely used in daily chemical, food and other industries. [0003] But peony blooms once a year, and the flowering period is only one week. The petals are delicate and moist, and they are easy to mold after harvesting and difficult to preserve, which brings many difficulties to the development and production of peony essential oil. Plant essential oils currently on the market are compounded from essential oils and chemical additives. The traditional methods of extracting essential oils from plant flower...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
CPCC11B9/02
Inventor 谢泽洋
Owner 龙里县泽洋生态科技有限公司
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