Process for extracting herpetospermum pedunculosum seed oil by supercritical CO*

A wave-shaped melon seed and supercritical technology, applied in the direction of fat oil/fat production, fat production, etc., can solve the problems of high temperature, unfavorable heat-sensitive and easily oxidized substances, solvent residues, etc., and achieve strong solubility, no solvent residues, and easy operation The effect of low temperature

Inactive Publication Date: 2009-10-14
CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above method of extraction with organic solvents inevitably has solvent residues, and the higher temperature in the intermediate step is not good for heat-sensitive and easily oxidized substances

Method used

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  • Process for extracting herpetospermum pedunculosum seed oil by supercritical CO*
  • Process for extracting herpetospermum pedunculosum seed oil by supercritical CO*

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1: The mature and dried Boling melon seeds are crushed to a particle size of 80 mesh, weighed 1.6kg of Boling melon seed powder, and put it into a 5L extraction kettle for supercritical CO 2 extraction. During supercritical extraction, set the temperature of the extraction tank, separation tank I, and separation tank II and make them reach 60°C, 50°C, and 40°C respectively, and turn on the CO 2 Gas storage tank, extracting still is carried out pressurization, when extracting still pressure reached 25MPa, open the valve of control separating still I and separating still II pressure, adjust the pressure of separating still I to be 7MPa respectively, the pressure of separating still II is 5MPa, Simultaneous regulation of CO 2 The flow rate was 40L / h, the temperature and pressure were maintained, and the extract was collected every 30 minutes during the extraction period of 2.5 hours. The extraction rate was 33.56%.

Embodiment 2

[0045] Example 2: The mature and dried Boling melon seeds are pulverized to a particle size of 50 mesh, weighed 1.6kg of Boling melon seed powder, and put it into a 5L extraction kettle for supercritical CO 2 extraction. During supercritical extraction, set the temperature of the extraction tank, separation tank I, and separation tank II to 35°C, 40°C, and 30°C respectively, and turn on the CO 2 The gas storage tank pressurizes the extraction kettle, and when the pressure of the extraction kettle reaches 40MPa, open the valve of the control separation kettle I and the pressure of the separation kettle II, adjust the pressure of the separation kettle I to be 5MPa respectively, and the pressure of the separation kettle II to be 4MPa, Simultaneous regulation of CO 2 The flow rate is 20L / h, the temperature and pressure are maintained, and the extract is collected every 30min during the extraction period of 3.0h. The extraction rate is 29.45%.

Embodiment 3

[0046] Example 3: The mature and dried Boling melon seeds are pulverized to a particle size of 30 mesh, weighed 1.6kg of Boling melon seed powder, and put it into a 5L extraction kettle for supercritical CO 2 extraction. During supercritical extraction, set the temperature of the extraction tank, separation tank I, and separation tank II and make them reach 50°C, 40°C, and 30°C respectively, and turn on the CO 2 Gas storage tank, extracting still is carried out pressurization, when extracting still pressure reached 35MPa, open the valve of control separating still I and separating still II pressure, adjust the pressure of separating still I to be 5MPa respectively, the pressure of separating still II is 4MPa, Simultaneous regulation of CO 2 The flow rate was 35L / h, the temperature and pressure were maintained, and the extract was collected every 30 minutes during the extraction period of 3.5 hours. The extraction rate was 36.12%.

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Abstract

The invention relates to a process for extracting herpetospermum pedunculosum seed oil by supercritical CO2, in particular to an extracting process of herpetospermum pedunculosum seed oil, which is characterized by comprising the following steps: crushing cleaned and dried herpetospermum pedunculosum seeds until the granularity is 20-80 mu, placing the crushed herpetospermum pedunculosum seeds into an extracting kettle, and extracting the herpetospermum pedunculosum seeds under the conditions that the pressure of the extracting kettle is 20-40MPa, the temperature is 35-60 DEG C and the CO2 flow is 20-40L/h; performing the two-stage decompression separation after the extraction, separating the herpetospermum pedunculosum seeds to obtain the herpetospermum pedunculosum seed oil under the conditions that the pressure of a first-stage separating kettle is 5-7MPa and the temperature is 40-50 DEG C; and separating the herpetospermum pedunculosum seeds to obtain the herpetospermum pedunculosum seed oil under the conditions that the pressure of a second-stage separating kettle is 4-5MPa and the temperature is 30-40 DEG C.

Description

technical field [0001] The present invention relates to a kind of extraction technology of wave edge melon seed oil, specifically relate to a kind of use the carbon dioxide fluid under the supercritical state as extraction agent, extract from wave edge melon seed with oleic acid, linoleic acid, linolenic acid as The main method of poling melon seed oil. Background technique [0002] Boling melon seeds are the mature seeds of Herpetospermum pedunculosum (Ser.) Baill. (H.Caudigerum Wall), a genus of Cucurbitaceae. Nepal and other countries. Tibetan medicine believes that it can relieve liver fire, gallbladder heat, detoxify, and help digestion. It is used to treat red bark, liver disease, and indigestion. Boling melon seeds are one of the first-choice medicines for treating liver diseases in Tibetan medicine. Most of the Tibetan medicine prescriptions for treating liver diseases are compatible with Boling melons. The content of fatty oil in Boling melon seeds is very high. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10
Inventor 索有瑞赵先恩刘永军王洪伦
Owner CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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