Extraction method of fennel volatile oil

An extraction method and cumin technology, applied in the field of natural plant extraction products, can solve the problems of long time consumption, high extraction temperature, decomposition of volatile oil chemical components, etc., and achieve the effects of shortening extraction time, improving extraction rate, and simplifying operation steps.

Inactive Publication Date: 2014-10-01
NANJING ZELANG MEDICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of the steam distillation method is that the extraction temperature is high and the time-consuming is long

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Dry and crush the fennel, take 100g and place it in a glass container, add 8 times the 70% ethanol solution, and use dual-frequency ultrasonic extraction. The ultrasonic frequency is 20KHz, 40KHz, and the power is 400W (20KHz and 40KHz are each half). Continuously extract for 60 minutes at 70°C, filter, and concentrate the filtrate on a rotary evaporator until there is no alcohol, extract 3 times with n-hexane, combine the extracts, dry and dehydrate with anhydrous sodium sulfate, and concentrate under reduced pressure on a rotary evaporator to obtain colorless and transparent The yield of cumin volatile oil is 5.1%.

Embodiment 2

[0015] Dry and crush the fennel, take 100g and place it in a glass container, add 9 times the 600% ethanol solution, and use dual-frequency ultrasonic for extraction. The ultrasonic frequency is 20KHz, 40KHz, and the power is 500W (20KHz and 40KHz are each half). Continuously extract for 40 minutes at 60°C, filter, and concentrate the filtrate on a rotary evaporator until there is no alcohol, extract 3 times with petroleum ether, combine the extracts, dry and dehydrate with anhydrous sodium sulfate, and concentrate under reduced pressure on a rotary evaporator to obtain colorless and transparent The yield of cumin volatile oil is 5.6%.

Embodiment 3

[0017] Dry and crush the fennel, take 100g and place it in a glass container, add 10 times the 65% ethanol solution, and use dual-frequency ultrasonic extraction. The ultrasonic frequency is 20KHz, 40KHz, and the power is 450W (20KHz and 40KHz are each half). Continuously extract for 30 minutes at 50°C, filter, and concentrate the filtrate on a rotary evaporator until there is no alcohol, extract twice with cyclohexane, combine the extracts, dry and dehydrate with anhydrous sodium sulfate, and concentrate on a rotary evaporator under reduced pressure to obtain colorless Transparent cumin volatile oil, the yield is 4.9%.

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PUM

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Abstract

The invention relates to an extraction method of fennel volatile oil and particularly relates to a method for extracting the fennel volatile oil by double-frequency ultrasonic waves. The extraction method comprises the steps of drying and smashing the fennel; putting into a glass vessel; adding 60-70% ethanol solution which is 8-10 times as much as fennel; constantly extracting for 30-60 minutes at 50-70DEG C by using the double-frequency ultrasonic waves, wherein the frequency of ultrasonic wave is 20KHz and 40KHz, and the power of the ultrasonic wave is 400-500W; filtering; concentrating the filtrate in a rotary evaporator till the filtrate has no alcohol smell; extracting with the organic solvent for 1-3 times; mixing the filtrates; drying and dehydrating by anhydrous sodium sulfate; and concentrating at reduced pressure so as to obtain the water white fennel volatile oil. The method for extracting the fennel volatile oil by the double-frequency ultrasonic waves is simple, has short extraction time and low energy consumption, is much higher than traditional extraction method in term of yield of the volatile oil, and is applicable to industrial production.

Description

technical field [0001] The invention relates to a method for extracting fennel volatile oil, in particular to a method for extracting fennel volatile oil by using dual-frequency ultrasonic waves, and belongs to the technical field of natural plant extraction products. Background technique [0002] Fennel, the dry and mature fruit of fennel belonging to the Umbelliferae family, also known as fennel, glutinous rice, fennel, and fennel seed, has the functions of regulating qi and regulating the stomach, dispelling cold and relieving pain. Contains 3~8% of volatile oil, the main components in the oil are 50~78% of trans-anisole, 18~20% of α-anisone, about 10% of methyl piperonol, and anisaldehyde. It can be used as a carminative to relieve abdominal distension Exhaust gas and relieve pain; it can reduce the tension of the stomach, and then stimulate it to normalize its peristalsis, shorten the emptying time, and increase the tension and peristalsis of the intestine, thus promoti...

Claims

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Application Information

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IPC IPC(8): C11B1/10A61K36/23
Inventor 刘东锋杨衡东
Owner NANJING ZELANG MEDICAL TECH
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