Method for fractionating grease through using erythritol fatty acid ester, and application of erythritol fatty acid ester

A technology of erythritol and fatty acid ester, which is applied in the field of oil fractionation and can solve problems such as failure to obtain ideal results

Active Publication Date: 2013-12-04
WILMAR SHANGHAI BIOTECH RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these studies failed to achieve the desired effect

Method used

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  • Method for fractionating grease through using erythritol fatty acid ester, and application of erythritol fatty acid ester
  • Method for fractionating grease through using erythritol fatty acid ester, and application of erythritol fatty acid ester
  • Method for fractionating grease through using erythritol fatty acid ester, and application of erythritol fatty acid ester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] A. Preparation and characterization of erythritol fatty acid esters with different degrees of esterification

preparation Embodiment i

[0037] Preparation Example i: Preparation of Erythritol Monopalmitate

[0038] Weigh 105 grams (0.41 moles) of palmitic acid and 150 grams (1.23 moles) of erythritol into a 2-liter three-necked flask, and install a reflux condenser, a mechanical stirrer and an addition funnel for the flask. 1 liter of cyclohexane was added to the flask as a reflux solvent, followed by phase transfer catalyst cetyltrimethylammonium bromide (7.65 g, 3% by weight) and reaction catalyst p-toluenesulfonic acid (5.1 g, 2% by weight). Start the stirring device, heat the mixture to 95°C, and reflux at this temperature for 8 hours. After the reaction is over, filter while hot to remove unreacted erythritol, cool to room temperature, let it stand for 1 hour, and extract it with a Buchner funnel. Filter, wash with 1500 ml of saturated aqueous sodium bicarbonate solution, then wash with 800 ml of petroleum ether, and dry at room temperature in a vacuum oven to obtain 80 g of the product. Use petroleum e...

preparation Embodiment ii

[0039] Preparation Example ii: Preparation of Erythritol Palmitic Acid Diester

[0040] In this experiment, the reaction system, nuclear magnetic resonance instrument and HPLC in the above preparation example i were used. Take by weighing 210 grams (0.82 moles) of palmitic acid and 50 grams (0.41 moles) of erythritol and add in the there-necked flask, add 1 liter of toluene as reflux solvent in this flask, then add reaction catalyst p-toluenesulfonic acid (7.8 grams, 3% by weight). The mixture was refluxed at 130°C for 24 hours. After the reaction was completed, unreacted erythritol was removed by filtration while it was hot, cooled to room temperature, allowed to stand for 1 hour, and suction filtered with a Buchner funnel. Washing, and then washing with 1200 milliliters of petroleum ether, after drying at room temperature in a vacuum oven, 220 grams of product were obtained. Use petroleum ether as a solvent, add the product to petroleum ether according to the ratio of prod...

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PUM

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Abstract

The invention relates to a grease fractionating method. The method comprises the following steps: adding a crystallization promoter to grease for fractionation, wherein the crystallization promoter is erythritol fatty acid ester; heating to make the grease fused; cooling for crystallizing to make the fused grease form a solid part and a liquid part; and separating the solid part and the liquid part, wherein the erythritol fatty acid ester is a monoester, a diester, a triester and a tetraester formed through using erythritol and C2-28 fatty acid or a mixture thereof. The invention also relates to an application of the erythritol fatty acid ester in the grease crystallizing fractionation.

Description

technical field [0001] The present invention generally relates to the fractionation of fats and oils, and more specifically, the present invention relates to the fractionation of fats and oils using erythritol fatty acid esters. Background technique [0002] Alditols fatty acid esters represent sugar alcohols and fatty acids (usually C 8 -C 22 Fatty acid) esterification products are a type of fat substitute. Now people have developed fatty acid esters of sugar alcohols such as xylitol, sorbitol, maltitol and mannitol as additives, which are widely used in the fields of food, medicine and cosmetics. [0003] Erythritol (Erythritol), also known as protophytol, erythritol, chemical name is 1,2,3,4-butanetrol. The structural formula is shown in Formula 1, which is widely distributed in nature and exists in seaweed, mushrooms, fruits, lichens, microorganisms, fermented foods, and animal body fluids. Erythritol is a filling sweetener with a cool taste. It not only has all the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B7/00
Inventor 郑妍陈翔杨天奎徐学兵
Owner WILMAR SHANGHAI BIOTECH RES & DEV CENT
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