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Method used for extracting biological ingredients with sub-critical ethanol solvent

A subcritical and ethanol technology, applied in the chemical field, can solve the problems of long extraction time and slow extraction speed, and achieve the effect of thorough extraction and improved extraction efficiency

Inactive Publication Date: 2015-06-17
HENAN YALINJIE BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solid phase in the extraction tank is the extraction residue. After the ethanol is evaporated and recovered, it is discharged. In this way, in order to maximize the extraction of the medicinal ingredients in the biomass, Chinese medicinal materials generally need to be extracted multiple times in the extraction tank. Long extraction time and slow extraction speed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] ①: Raw material pretreatment: take 100Kg ginkgo leaves, remove impurities, wash, dry, crush to 40 mesh, put into the extraction tank, close the extraction tank, vacuumize, and preheat the raw materials in the tank to 100°C;

[0009] ②: Extraction: Pour in ethanol solvent with a concentration of 20% at 100°C, control the ratio of raw materials: solvent at 1:2, control the temperature at 100°C, and extract the extract after 30 minutes;

[0010] ③: Add solvent again, repeat step ② twice;

[0011] ④: After evacuating the solvent in the extraction tank for the third time, continue heating to evaporate the ethanol in the raw material residue in the tank, and introduce the condenser to recover the ethanol solvent. Slag discharge to complete a subcritical ethanol extraction of raw materials;

[0012] ⑤: Pour the extract extracted in steps ② and ③ into an evaporation tank, and evaporate the ethanol in it to obtain the target extract of ginkgo flavonoids. The evaporated ethanol...

Embodiment 2

[0014] ①: Raw material pretreatment: Take 100Kg grape seeds, crush them to 40 meshes, put them into the extraction tank, close the extraction tank, vacuumize, and preheat the raw materials in the tank to 150°C;

[0015] ②: Extraction: Pour in ethanol solvent with a concentration of 90% at 150°C, control the ratio of raw materials:solvent at 1:1, control the temperature at 150°C, and extract the extract after 30 minutes;

[0016] ③: Add solvent again, repeat step ② for 3 times;

[0017] ④: After evacuating the solvent in the extraction tank for the fourth time, continue heating to evaporate the ethanol in the raw material residue in the tank, and introduce the condenser to recover the ethanol solvent. Slag discharge to complete a subcritical ethanol extraction of raw materials;

[0018] ⑤: Pour the extract extracted in steps ② and ③ into the evaporation tank, and evaporate the B therein to obtain the target extract grape seed oil and polyphenol mixture. The evaporated ethanol...

Embodiment 3

[0020] ①: Raw material pretreatment: take 100Kg rhizome of Polygonum cuspidatum, remove impurities, wash, dry, crush to 40 mesh, put into extraction tank, close the extraction tank, vacuumize, and preheat the raw material in the tank to 120°C;

[0021] ②: Extraction: Pour in ethanol solvent with a concentration of 70% at 120°C, control raw material: solvent ratio of 1:2, control temperature at 120°C, and extract the extract after 60 minutes;

[0022] ③: Add solvent again, repeat step ② step 1;

[0023] ④: After evacuating the solvent in the extraction tank for the second time, continue heating to evaporate the ethanol in the raw material residue in the tank, and introduce the condenser to recover the ethanol solvent. Slag discharge to complete a subcritical ethanol extraction of raw materials;

[0024] ⑤: Pour the extract extracted in steps ② and ③ into an evaporation tank, and evaporate the ethanol in it to obtain the target extract polydatin. The evaporated ethanol gas is ...

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Abstract

The invention discloses a method used for extracting biological ingredients with sub-critical ethanol solvent, and belongs to the field of chemistry. The method comprises following steps: biomass raw materials are delivered into a pressure extraction tank; ethanol extraction solvent at sub-critical states is delivered into the pressure extraction tank for extraction, wherein extraction time ranges from 30min to 1h; and after extraction, ethanol in an obtained extract is separated so as to obtain an object product. Compared with conventional normal-temperature normal-pressure ethanol extraction methods, extraction rate of the method is increased significantly, and more complete extraction of the biological object product is realized.

Description

technical field [0001] The invention relates to a subcritical biological component extraction process, in particular to a subcritical ethanol solvent extraction process for biological components, which belongs to the field of chemistry. Background technique [0002] There are many safe and efficient beneficial ingredients in biomass materials. For example, Chinese herbal medicines have been used for thousands of years in my country. However, the decoction process of Chinese herbal medicines is time-consuming and laborious, which restricts the development of traditional medicine. This shortcoming has played a huge role in promoting the application of traditional Chinese medicine. At present, the extraction of active ingredients in Chinese herbal medicines has formed a mature process and equipment, and has been widely used. This process uses ethanol as the extraction solvent, and extracts at atmospheric pressure below the boiling point of ethanol to obtain useful medicinal ingr...

Claims

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Application Information

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IPC IPC(8): B01D11/02A61K36/16A61K36/87C07D311/30C07D311/40C07H15/203C07H1/08C07G99/00C08B37/00
Inventor 杨倩祁鲲
Owner HENAN YALINJIE BIOLOGICAL TECH
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