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Disordered flowers lavender essential oil and refining method thereof

A technology of lavender essential oil and mixed flowers, which is applied in the field of refining lavender essential oils of mixed flowers, and can solve the problems of poor quality and low yield of essential oils

Inactive Publication Date: 2016-02-03
NANJING INST FOR THE COMPREHENSIVE UTILIZATION OF WILD PLANTS CHINA COOP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the quality of blue and white lavender essential oil is the highest, and all indicators are in line with national standards, but the output of essential oil is the lowest; the content of camphor and linalool in French blue lavender essential oil meets the national standard requirements, but the content of lavender acetate is slightly lower, and the content of lavender acetate is higher than the standard value; Lavender has the largest cultivation amount and the highest essential oil content, but the camphor content in the essential oil is as high as 14.57%, which is close to 10 times the national standard requirement, so the quality is the worst. It should be refined and purified to improve the quality of its essential oil and economic benefits. imminent

Method used

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  • Disordered flowers lavender essential oil and refining method thereof
  • Disordered flowers lavender essential oil and refining method thereof
  • Disordered flowers lavender essential oil and refining method thereof

Examples

Experimental program
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Effect test

example 1

[0017] Pre-freeze the lavender essential oil at -20°C for 2 hours. The pre-frozen lavender essential oil was quickly placed in a low-temperature refrigerated centrifuge, the temperature of the centrifuge was controlled at -10°C, the speed was 10000rpm / min, centrifuged for 20min, and the supernatant was quickly poured out for later use. Pour the supernatant from low-temperature freezing and centrifugation into the evaporating flask of the molecular distillation equipment, and control the preheating temperature to 40°C, the evaporation temperature to 50°C, the cooling temperature to -30°C, the frequency of the peristaltic pump to 10Hz, and the speed of the wiper to be 150rpm / min, the evaporation pressure is 10mbar, and the light components are collected for later use. The light components obtained from a molecular distillation are injected into the evaporating flask of the molecular distillation equipment again, and the preheating temperature is controlled at 50°C, the evaporati...

example 2

[0019] Pre-freeze the lavender essential oil at -25°C for 4 hours. The pre-frozen lavender essential oil was quickly placed in a low-temperature refrigerated centrifuge, the temperature of the centrifuge was controlled at -20°C, the speed was 15000rpm / min, centrifuged for 15min, and the supernatant was quickly poured out for later use. Pour the supernatant from low-temperature frozen centrifugation into the evaporating flask of the molecular distillation equipment, and control the preheating temperature to 35°C, the evaporation temperature to 55°C, the cooling temperature to -25°C, the frequency of the peristaltic pump to 15Hz, and the speed of the wiper to 180rpm / min, the evaporation pressure is 20mbar, and the light components are collected for future use. The light components obtained from a molecular distillation are injected into the evaporating flask of the molecular distillation equipment again, and the preheating temperature is controlled at 55°C, the evaporation temp...

example 3

[0021] Pre-freeze the lavender essential oil at -15°C for 8 hours. The pre-frozen lavender essential oil was quickly placed in a low-temperature refrigerated centrifuge, the temperature of the centrifuge was controlled at -15°C, the speed was 12000rpm / min, centrifuged for 30min, and the supernatant was quickly poured out for later use. Pour the supernatant from low-temperature frozen centrifugation into the evaporating flask of the molecular distillation equipment, and control the preheating temperature to 40°C, the evaporation temperature to 60°C, the cooling temperature to -15°C, the frequency of the peristaltic pump to 18Hz, and the speed of the wiper to 160rpm / min, the evaporation pressure is 16mbar, and the light components are collected for later use. The light components obtained from a molecular distillation are injected into the evaporating flask of the molecular distillation equipment again, and the preheating temperature is controlled at 45°C, the evaporation tempe...

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Abstract

The invention relates to disordered flowers lavender essential oil and a refining method thereof. The method comprises the steps that the disordered flowers lavender essential oil obtained by steam distillation is subjected to low temperature pre-freezing and low temperature freezing centrifugation to remove part of fatty acid, eudesmol and camphor; primary molecular distillation and secondary molecular distillation are performed to remove the most part of the eudesmol and the camphor. In the disordered flowers lavender essential oil, the content of the fatty acid after refining is lowered to 2.61 percent to 2.88 percent from 4.23 percent before the refining; the content of the eudesmol is lowered to 0.67 percent to 0.98 percent from 18.31 percent before the refining; the content of the camphor is lowered to 1.40 percent to 1.48 percent from 14.57 percent, and accords with the requirements of the content of the camphor in the national standard (GB / T12653-2008). The yield is 65.22 percent to 74.28 percent in the whole refining process. The disordered flowers lavender essential oil and the refining method thereof, provided by the invention, are simple in process and high in yield, a technology that refrigerated centrifugation is combined with the molecular distillation is adopted, the content of the fatty acid, the eudesmol and the camphor in the disordered flowers lavender essential oil are lowered, the content of the camphor is enabled to reach the national standard, and the quality and the market competitiveness of disordered flowers lavender are improved.

Description

technical field [0001] The invention belongs to the technical field of extraction and separation of natural products, and in particular relates to a method for refining lavender essential oil. Background technique [0002] Lavender is a perennial subshrub of Lamiaceae Lavender, also known as perfume plant, yellow herb, native to the Mediterranean region, is a precious natural spice plant, known as "aromatic herb". my country introduced it from abroad in the early 20th century, and now it has been widely planted in Xinjiang, Shaanxi, Jiangsu and other places. Yili, Xinjiang is known as "the hometown of Chinese lavender". Lavender essential oil is extracted from the flower spikes of lavender. Because it contains more aromatic substances such as alkenes, ketones and esters, it has a pleasant aroma. Studies have shown that lavender essential oil has the effects of sedative and hypnotic, antibacterial and anti-inflammatory, insect repellent, anti-oxidation, scar removal, promoti...

Claims

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Application Information

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IPC IPC(8): C11B9/00
Inventor 赵伯涛陈斌钱骅黄晓德朱羽尧郝瑞芬
Owner NANJING INST FOR THE COMPREHENSIVE UTILIZATION OF WILD PLANTS CHINA COOP
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