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Jasmine essential oil extraction method

A technology of jasmine essential oil and an extraction method, applied in the field of extraction of jasmine essential oil, can solve the problems of limited product quality, easy growth of mildew, easy organic residues and the like

Inactive Publication Date: 2019-05-24
镇江市丹徒区南山溪园茶叶专业合作社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has high extraction yield and low cost, but it will cause organic residues and make the aroma of the product not pure enough
3. Supercritical CO2 extraction method, because the supercritical CO2 fluid is too soluble, the non-essential oil components in jasmine are also extracted, such as protein, which makes the product prone to mold during storage and limits the quality of the obtained product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] 1. Collection: Collect jasmine flowers that have been open for 1-2 days as raw materials, avoid light and keep warm.

[0013] 2. Transportation and preservation: transport the collected jasmine flowers to a cold storage at a sealed low temperature of -2°C for storage.

[0014] 3. Pretreatment: soak the collected and preserved jasmine flowers in an ethanol solution with a mass concentration of 70%, stir at 40-50°C for 1 hour, cool, and collect the pretreated jasmine petals.

[0015] 4. Microwave extraction: Place the pretreated jasmine flower petals in ethanol with a mass concentration of 75-80% for microwave extraction, set the microwave output power to 400w, and set the microwave time for 10 minutes. After cooling, filter out the jasmine petal residues, collect and extract The extract is concentrated under reduced pressure and sent to the gas chromatograph for ethanol-free detection.

[0016] 5. Steam distillation extraction: add water to the steam distillation equipment, heat...

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PUM

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Abstract

The invention aims at providing a jasmine essential oil extraction method which can effectively extract jasmine essential oil and fill up the market blank. The jasmine essential oil extraction methodis characterized by extracting jasmine essence through a microwave extraction-steam distillation method; the process comprises collection, transportation and preservation, pretreatment, microwave extraction, steam distillation and refining; for pretreatment, gardenia petals are placed in ethanol with the mass concentration being 75-80%, the microwave output power is 400 w, the microwave time is set to be 10 minutes, after cooling, gardenia petal residues are filtered out, and an extracting solution is collected; the extracting solution is subjected to vacuum concentration and sent to gas chromatograph for ethanol-free detection.

Description

1. Technical Field [0001] The invention relates to a method for extracting jasmine essential oil and belongs to the technical field of agricultural product processing. 2. Background technology [0002] Jasmine (scientific name: Jasminum sambac (L.) Ait) is widely cultivated in southern my country. The flower of jasmine is extremely fragrant, which is a famous raw material for scented tea and an important raw material for flavor. Jasmine essential oil, known as the "king of essential oils", commonly used extraction methods include: fat adsorption, extraction and supercritical CO2 extraction. The fat adsorption method has the advantage of simple production process, but the subsequent separation of essential oil and grease is difficult, and its use range is limited. Extraction method Use low boiling point solvents such as petroleum ether, hexane, pentane and other organic solvents to soak jasmine, extract a mixture of essential oil and organic solvent, and then distill off the org...

Claims

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Application Information

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IPC IPC(8): C11B9/02
Inventor 魏玉宝魏洁琼
Owner 镇江市丹徒区南山溪园茶叶专业合作社
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