The preparation method of 1-stearic acid-2-oleic acid-3-linoleic acid glyceride

A technology of glyceryl linoleate and stearic acid, which is applied in the preparation of carboxylic acid esters, the preparation of organic compounds, chemical instruments and methods, etc., to avoid the use of a large amount of toxic organic solvents, good yield, and good extraction effect Effect

Inactive Publication Date: 2018-10-26
HUAIYIN TEACHERS COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

With the improvement of modern technology and the widespread use of detection instruments such as high performance liquid chromatography, gas chromatography, and gas chromatography, the research on the detection of citrus peels in my country has attracted more and more attention, but the separation technology still has a certain gap with developed countries. , Glyceride purity and other product quality needs to be further improved

Method used

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  • The preparation method of 1-stearic acid-2-oleic acid-3-linoleic acid glyceride
  • The preparation method of 1-stearic acid-2-oleic acid-3-linoleic acid glyceride

Examples

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Effect test

Embodiment 1

[0025] Embodiment 1: Citrus seeds are washed with distilled water, dried, and pulverized. Put 100 g of citrus seed powder in a beaker, add 250 ml of water and 50 ml of ionic liquid 1-butyl-3-methylimidazole hexafluorophosphate, 25 Stir at ℃ for 3 hours, and filter with suction; the filtrate was extracted and washed with 100 ml of ethyl acetate for 3 times, combined with the ethyl acetate extraction and washing liquid, and the ethyl acetate was recovered by distillation under reduced pressure to obtain 41.0 g of the citrus seed oil mixture; the oil mixture was separated by chromatography column, The isolated pure glycerolipid 5.15 was obtained with a yield of 5.15%, and the isolated pure glycerolipid was characterized by nuclear magnetic resonance; the mixed solution of water and ionic liquid was distilled under reduced pressure to remove water, and the ionic liquid was recovered.

[0026] Using silica gel as a filler, the oil mixture is purified by column chromatography, charac...

Embodiment 2

[0031] Example 2: Put 20.0 g of citrus seed powder in a beaker, add 5.0 ml of water and 10.0 ml of ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate, stir at 25°C for 3 hours, and filter with suction; the filtrate Wash 3 times with 100ml of ethyl acetate, combine the ethyl acetate extract and washing solution, and recover ethyl acetate by distillation under reduced pressure to obtain 8.15g of citrus seed oil mixture; the oil mixture is separated by chromatographic column to obtain 0.862 g of isolated pure glyceride g, yield 4.31%.

Embodiment 3

[0032] Example 3: Put 20.0 g of citrus seed powder in a beaker, add 20.0 ml of water and 10.0 ml of ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate, stir at 25°C for 3 hours, and filter with suction; the filtrate Extract and wash with 100ml of ethyl acetate for 3 times, combine the extract and washing solution of ethyl acetate, and recover ethyl acetate by distillation under reduced pressure to obtain 8.27g of citrus seed oil mixture; the oil mixture is separated by chromatographic column to obtain 0.912 g of isolated pure glyceride g, yield 4.56%.

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Abstract

The invention discloses a method for preparing 1-stearic acid-2-oleic acid-3-linoleic acid glyceride. The method comprises the steps: extracting orange seed oil from orange seed powder by using water-ionic liquid at room temperature, and carrying out suction filtration; carrying out extraction-eluting on the filtrate by using ethyl acetate, carrying out reduced-pressure distillation recovery, and carrying out chromatographic column separation on an orange seed oil crude product, thereby obtaining a pure product. According to the method, orange seeds with relatively high fat and oil content serve as a raw material, are rich in resources and replace petroleum and the like, the preparation of organic chemicals from renewable resources is a sustainable social development trend, the requirements of green chemistry industry are met, and thus the method has a relatively good utilization and development prospect in increasing the added value of the orange seeds.

Description

technical field [0001] The invention belongs to the field of preparation and separation of natural organic compounds, and is related to the processing of non-metallic waste and debris, in particular to the preparation of 1-linoleic acid-2-oleic acid-3-stearin by using citrus seeds as raw materials and using ionic liquid extraction and separation Glyceride method. Background technique [0002] Most of the organic chemicals used in people's daily life come from non-renewable fossil resources such as oil, natural gas and coal. The preparation of organic chemicals from renewable resources is a trend of green and sustainable chemical development, which is conducive to the improvement of the environment and economic development. and social progress. Fats and oils from plants and animals are economical and renewable resources for the manufacture of chemicals. Citrus is a bulk fruit in the world, and as an important economic fruit tree, citrus ranks first in terms of cultivation a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C67/56C07C67/58C07C69/587
CPCC07C67/56C07C67/58C07C69/587
Inventor 娄凤文杜艳秋朱凤霞孙小军安礼涛覃树文
Owner HUAIYIN TEACHERS COLLEGE
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