Extracting process of lavender essential oil

A technology of lavender essential oil and extraction process, applied in the field of essential oil extraction, can solve the problems of high cost, residual organic solvent, low yield and the like, and achieve the effects of low production cost, increased content and simple operation

Inactive Publication Date: 2019-02-22
福建农业职业技术学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the extraction methods of lavender essential oil include steam distillation, organic solvent extraction, and supercritical fluid extraction. Among them, the organic solvent method is easy to introduce impurities and cause organic solvent residues; the supercritical fluid extraction has simple extraction process, high efficiency and high efficiency. Pollution-free, such as the Chinese patents with application numbers 200510027485.4, 201310630702.3 and 201310522497.9, but the cost of this method is relatively high; steam distillation, such as the Chinese patents with application numbers 201610325255.4 and 201610325255.4, this method is still the lavender essential oil extraction One of the most commonly used methods, this method has simple equipment, easy operation, low cost and large output, but its yield is low, about 0.6% on average, and needs to be optimized

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of extraction process of lavender essential oil, the steps are as follows:

[0037] Step 1: Dry the freshly picked lavender, specifically: place the freshly picked lavender in an environment with a temperature of 20°C and a relative humidity of 17% for 7.5 hours; then perform alternating ventilation with cold and hot wind for 24 hours, The alternating interval is 3 hours; the temperature of the cold air is 21°C, and the temperature of the hot air is 27°C;

[0038] Step 2: pulverize the lavender obtained through the treatment in step 1, and pass through a 40-mesh sieve to obtain lavender powder;

[0039] Step 3: the lavender powder obtained in step 2 is soaked in three parts in distilled water for 40min, the liquid-solid ratio of the first part of liquid-solid mixture is 10:1, and the liquid-solid ratio of the second part of liquid-solid mixture is 13:1 1, the liquid-solid ratio of the third part of liquid-solid mixture is 16:1;

[0040] Step 4: The first part o...

Embodiment 2

[0046] A kind of extraction process of lavender essential oil, the steps are as follows:

[0047] Step 1: Place the freshly picked lavender in an environment with a temperature of 21°C and a relative humidity of 18% for 6 hours; then alternately ventilate with hot and cold wind for 22 hours, with an alternating interval of 3 hours, the temperature of the cold wind is 20°C, and the The hot air temperature is 26°C;

[0048] Step 2: pulverize the lavender obtained through the treatment in step 1, and pass through a 60-mesh sieve to obtain lavender powder;

[0049] Step 3: Soak the lavender powder obtained in step 2 in three parts in distilled water for 60 minutes to obtain three parts of liquid-solid mixture, the liquid-solid ratio of the first part of liquid-solid mixture is 11:1, and the second part of liquid-solid mixture The liquid-solid ratio is 14:1, and the liquid-solid ratio of the third part of liquid-solid mixture is 18:1;

[0050] Step 4: The first part of the liquid...

Embodiment 3

[0056] A kind of extraction process of lavender essential oil, the steps are as follows:

[0057] Step 1: Put the freshly picked lavender in an environment with a temperature of 22°C and a relative humidity of 20% for 8 hours; then alternately ventilate with hot and cold wind for 16 hours; the temperature of the cold wind is 22°C, and the temperature of the hot wind is 28°C ;

[0058] Step 2: pulverize the lavender obtained through the treatment in step 1, and pass through an 80-mesh sieve to obtain lavender powder;

[0059] Step 3: Soak the lavender powder obtained in step 2 in three parts in distilled water for 70 minutes to obtain three parts of liquid-solid mixture, the liquid-solid ratio of the first part of liquid-solid mixture is 11:1, and the second part of liquid-solid mixture The liquid-solid ratio is 13:1, and the liquid-solid ratio of the third part of liquid-solid mixture is 21:1;

[0060] Step 4: Perform ultrasonic strengthening treatment on the first liquid-so...

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Abstract

The invention discloses an extracting process of lavender essential oil and belongs to the technical field of essential oil extraction. The extracting process comprises the following steps that newly-picked lavenders are dried and crushed, the crushed lavenders are divided into three parts, distilled water is added, and the liquid-solid ratios of three parts of liquid-solid mixtures are (10 to 22):1 and are increased sequentially; and then the three parts of liquid-solid mixtures are sequentially subjected to ultrasonic enhancement treatment, and then then steam distillation is conducted. According to the extracting process of the lavender essential oil, the mixtures, with the different liquid-solid ratios, of the distilled water and the lavenders are subjected to ultrasonic enhancement step by step, steam distillation is conducted finally, thus the defect of low yield of a traditional steam distillation method is overcome, and effective components in the lavender essential oil are notdamaged; and the extracting process is easy to operate and low in production cost, no organic solvent is adopted, thus medicine residue is avoided, the equipment requirement is low, and the extracting process is completely suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of essential oil extraction, and in particular relates to a process for extracting lavender essential oil. Background technique [0002] Lavender (Lavandula angustifolia Mill) is a small shrub belonging to Dicotyledons, Labiatae, and Lavandula Linn. It is native to Europe. It was recognized by humans in the 18th century. The lavender essential oil extracted from lavender is widely used in the medical field, and has the effects of calming, lowering blood pressure, lowering lipids, clearing the brain, antibacterial, healing and anti-inflammation. my country's "Ministry of Health Drug Standards-Uyghur Medicine Sub-volume" contains lavender, which is often used to treat various nervous system diseases. Lavender essential oil has a certain antibacterial ability against Escherichia coli, Staphylococcus aureus and Candida albicans, and also has the ability to scavenge DPPH free radicals in vitro, so it can be dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
CPCC11B9/02C11B9/027
Inventor 杨慧吴俊穗陈家文林君瑾徐磊杜海江薛萍刘小伟
Owner 福建农业职业技术学院
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