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Method for extracting shelled cedar seed oil and daucosterol from shelled cedar seed

A technology of carotin and cypress kernel oil, which is applied in the direction of fat oil/fat production, steroids, fat production, etc., can solve the problems of small carotin samples, not suitable for large-scale preparation, toxic eluent, etc., and reach the goal of impurity Less, less toxic, easy to refine the effect

Inactive Publication Date: 2012-07-04
SHANDONG ACAD OF CHINESE MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The eluent is toxic, it is a mixed solvent, it is not easy to recycle and apply, and the sample amount of carotin produced is very small, so it is not suitable for large-scale preparation

Method used

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  • Method for extracting shelled cedar seed oil and daucosterol from shelled cedar seed
  • Method for extracting shelled cedar seed oil and daucosterol from shelled cedar seed
  • Method for extracting shelled cedar seed oil and daucosterol from shelled cedar seed

Examples

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Effect test

Embodiment 1

[0020] Take 10Kg of cypress kernels, crush them, extract 2 times with petroleum ether (40°C), use 4 times the amount each time, extract for 1 hour each time, filter, combine petroleum ether liquid, recover petroleum ether until clean, and get 4.6Kg cypress kernel oil , edible after refining.

[0021] After the cypress oil is extracted, the cypress kernels are evaporated with petroleum ether, extracted twice with ethanol, each time with 8 times the amount, and extracted for 2 hours each time, filtered, and the filtrates combined. Recover ethanol to the extract form to obtain 1.1Kg extract. Add 2.2Kg of column chromatography silica gel (100-200 mesh) and stir evenly, place in a drying oven, dry at 60°C for about 5 hours, and let cool to obtain column layer silica gel mixture. Take 8.8Kg of silica gel for column chromatography (100-200 mesh), wet-pack the column with petroleum ether (70°C), add the above-mentioned column layer silica gel mixture into the chromatography column, a...

Embodiment 2

[0024] Take 10Kg of cypress kernels, crush them, extract 2 times with petroleum ether (50°C), use 4 times the amount each time, extract for 1 hour each time, filter, combine petroleum ether liquid, recover petroleum ether until clean, and get 4.4Kg cypress kernel oil , edible after refining.

[0025] After the cypress oil is extracted, the cypress kernels are evaporated with petroleum ether, extracted twice with ethanol, each time with 8 times the amount, and extracted for 2 hours each time, filtered, and the filtrates combined. Recover ethanol to the extract form to obtain 1.0Kg extract. Add 2.0 Kg of column chromatography silica gel (100-200 mesh) and stir evenly, place in a drying oven, dry at 60°C for about 5 hours, and let cool to obtain column layer silica gel mixture. Take 10Kg column chromatography silica gel (100-200 mesh), and use petroleum ether (80°C) to wet-pack the column, add the above-mentioned column layer silica gel mixture into the chromatography column, an...

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Abstract

The invention relates to a method for extracting shelled cedar seed oil and daucosterol from shelled cedar seed. The method comprises the following steps of: shattering shelled cedar seed, extracting with petroleum ether twice to obtain shelled cedar seed oil, completely volatilizing the petroleum ether from the cedar seed after extracting the shelled cedar seed oil, extracting with ethanol twice, mixing filtrate, recycling the ethanol to enable the mixed filtrate to form extract, adding column chromatography silicon gel which is 1-4 times the weight of the extract, uniformly stirring, dryingin a drying box, and cooling to obtain column layer silicon gel mixture, packing column chromatography silicon gel which is 4-8 times the weight of the extract into the chromatography column with a petroleum ether wet method, adding the column layer silicon gel mixture into the chromatography column, eluting with petroleum ether and acetic ether the volume ratio of which is 1:1 until effluent liquid is almost colorless, replacing the eluting liquid with acetic ether, mixing acetic ether eluting liquid, and recycling the acetic ether to obtain crude daucosterol. The invention has simple and convenient technological method for preparing daucosterol, low virulence of extracting and eluting solvent, high purity of the daucosterol, little impurity and easy purification, and is suitable for preparation or production in large scale.

Description

technical field [0001] The invention relates to a method for extracting cypress kernel oil and carrotin from cypress kernels. Background technique [0002] Unsaturated fatty acids in fatty oils can be divided into monounsaturated fatty acids (MU-FA) and polyunsaturated fatty acids (PUFA). Unsaturated fatty acids can be divided into n-3 family, n-6 family, n-7 family, n-9 family, among which n-3 family and n-6 ​​family have quite important significance in nutrition and biology. They mainly exist in the body tissue components in the form of complex lipids, some of them are precursors of certain active substances in the human body, a small amount of them exist in the blood in the form of lipoproteins, and a small amount of them are combined with plasma albumin in the form of free fatty acids to become Fatty acid transport vehicle in the body. We experimentally identified 6 kinds of fatty acids in cypress seed oil, saturated fatty acids are mainly hexadecanoic acid (6.58%), st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B1/10C07J17/00
Inventor 闫雪生徐新刚于蓓蓓付加雷孙付军宋卫国
Owner SHANDONG ACAD OF CHINESE MEDICINE
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