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Method for removing plasticizer in plant essential oil

A technology of plant essential oils and plasticizers, applied in the direction of essential oils/fragrances, fat production, etc., can solve the problems of removing chemical plasticizers, plasticizer pollution of plant essential oils, etc., to achieve quality improvement, high safety, The effect of avoiding harm

Inactive Publication Date: 2012-07-18
SUN YAT SEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Since plant essential oils will come into contact with various materials containing plasticizers in the process of production and packaging, and plasticizers are easily soluble in oils and fats, this has caused plasticizer pollution of plant essential oils.
In order to ensure the safety of plant essential oils, finding a reasonable and effective way to remove plasticizers is an urgent and major issue, but there is currently no mature technology or method in production that can effectively remove chemical plasticizers from plant essential oils

Method used

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  • Method for removing plasticizer in plant essential oil
  • Method for removing plasticizer in plant essential oil
  • Method for removing plasticizer in plant essential oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～9

[0036] Examples 1 to 9 use molecular distillation to remove the plasticizer in Orange sweet oil, the essential oil in Examples 10 and 11 is Australian tea tree oil, and the molecular still is a wiped film molecular still , the model is: MD-S80-Ⅲ (manufacturer: Guangzhou Hanwei Technology Co., Ltd.), the process parameters of distillation are shown in the table below:

[0037] The molecular distillation process parameter of table 4, embodiment 1~11

[0038] Example Vacuum / pa Distillation temperature / ℃ Feed rate / ml / min Wiping speed / rpm Distillate / w / w% 1 5000 40 2 300 9.93 2 5000 50 3 300 9.83 3 3000 20 2 250 10.38 4 95000 70 3 250 25.48 5 3000 50 3 300 26.04 6 5000 50 6 250 29.54 7 6000 50 1.5 250 2.68 8 4000 45 1.5 200 8.97 9 4500 50 3 300 23.58 10 5000 60 1.5 250 6.69 11 5000 60 1.5 150 9.35

[0039] Detect the content of plasticizer in the above-mentioned...

Embodiment 12

[0046] What used in embodiment 12 is patchouli oil (Patchouli oil), and the technology of its molecular distillation is:

[0047] The vacuum degree is 25 pa, the distillation temperature is: 60 °C, the feed rate is: 1 ml / min, and the rotation speed of the scraping film is: 300 r / min. The obtained distillate was subjected to secondary distillation, and the process conditions were as follows: vacuum degree 2000 pa, distillation temperature: 90 °C, feed rate: 3 ml / min, film scraping speed: 300 r / min. The distillate after secondary distillation accounts for 86.69% of the raw material percentage.

[0048] In the final distillate obtained, the concentrations of DMEP, DPP, DEHP, and DBP were respectively reduced to 4.2156mg / kg, 3.2456 mg / kg, 0.6816 mg / kg, and 2.6003mg / kg, and the removal rates were 6.26% (w / w), 58.84% (w / w), 19.76% (w / w) and 47.16% (w / w).

Embodiment 13

[0050] Lavender volatile oil was used in Example 13, Rose oil was used in Example 14, Oleum Cinnamomi was used in Example 15, and Oleum Cinnamomi was used in Example 16. Bergamot oil, Ginger oil (Ginger oil) used in Example 17, Star anise oil (Star anise oil) used in Example 18, Chuanxiong rhizome essential oil used in Example 19 oil), in Example 20, rosemary essential oil (Rosemary Essential Oil), in Example 21, peppermint oil (Peppermint), in Example 22, lemon oil (Lemon oil), its molecular distillation The process parameters are shown in the table below.

[0051] The molecular distillation process parameter of table 7, embodiment 13~36

[0052] Example Vacuum / pa Distillation temperature / ℃ Feed rate / ml / min Wiping speed / rpm Distillate / w / w% 13 2200 55 1 250 2.42 14 800 60 1 250 5.19 15 500 50 1 300 7.86 16 5000 53 1 300 8.81 17 1000 50 1 150 6.22 18 2000 60 1 300 9.87 19 1000 100 2 300 11.32 ...

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Abstract

The invention discloses a method for removing plasticizer in plant essential oil. The method comprises the following steps of: inletting the plant essential oil into a molecular distiller, and distilling, wherein the vacuum degree of distillation is controlled to be at 100-100,000pa and the temperature is controlled to be at 20-100 DEG C,; and controlling distillation residue to account for 2-30% (w / w) of the feed quantity, wherein obtained distillate is the refined plant essential oil. The method disclosed by the invention can effectively remove the plasticizer in the plant essential oil to further improve the equality of the plant essential oil. Through the method disclosed by the invention, the plasticizer in the plant essential oil can be reduced to below 1.5mg / kg, and possible harm to human bodies caused by the plasticizer is effectively avoided; so that the refined essential oil is safe to use.

Description

technical field [0001] The invention relates to a method for refining plant essential oils, in particular to a method for removing plasticizers in plant essential oils. Background technique [0002] Plasticizer (Plasticizer) or chemical plasticizer (Chemical plasticizer) is a polymer material additive widely used in industry. Adding this chemical substance in plastic processing can make it more flexible and easy to process. Currently In most countries of the world, the use of plasticizers is legal in the food, drug, cosmetic and tobacco industries. [0003] Common plasticizers are dimethyl phthalate (DMP), diethyl phthalate (DEP), diisobutyl phthalate (DIBP), dibutyl phthalate (DBP) , bis(2-methoxy)ethyl phthalate (DMEP), bis(4-methyl-2-pentyl) phthalate (BMPP), bis(2-ethoxy phthalate) ) ethyl ester (DEEP), dipentyl phthalate (DPP), dihexyl phthalate (DHXP), butyl benzyl phthalate (BBP), bis(2-phthalate) Butoxy) ethyl ester (DBEP), dicyclohexyl phthalate (DCHP), di(2-ethy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
Inventor 杨得坡熊瑛赵志敏何颖朱龙平庄勇郭未艳杨文哲王冬梅
Owner SUN YAT SEN UNIV