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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 amount of carotin samples, not suitable for large-scale preparation, difficult to recycle and apply, and achieve less impurities, Effect of low toxicity and easy purification

Inactive Publication Date: 2010-06-16
SHANDONG ACAD OF CHINESE MEDICINE
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AI Technical Summary

Benefits of technology

This patented technology involves making certain types of chemicals from animal fats called lanolin by dissolving them into alcoholic solutions containing water. These liquids are filtered out before being added back together again afterward. Afterwards they can be combined with other materials like silicon dioxide powder (SiO2) or glass flakes onto another solid support material such as aluminum oxide. By doing this it becomes possible to make special compounds that have specific properties useful in various industries including medicine, biology, chemistry, electronics, energy storage devices etc..

Problems solved by technology

This patented technical problem addressed by this patents relates to finding ways to produce high purity α -linolenic esters such as six essential long chain triglycerides (LCST)-rich vegetable fats called phytogenesis related compounds (PFTCs)) from crude palms containing these types of molecules. These PTFEesters could potentially provide valuable sources of alpha -fibrostanols (FAs) used as medicine.

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

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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, drying in 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

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Claims

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Application Information

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Owner SHANDONG ACAD OF CHINESE MEDICINE
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