Preparation method of food grade concentrated rape phospholipid

A food-grade, rapeseed technology, applied in the field of oil and fat engineering, achieves the effects of high extraction rate, convenient operation, and increased economic added value

Inactive Publication Date: 2006-11-29
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there is no food-grade rapeseed p

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Rapeseed oil hydration and dephosphorization oil bottoms are used as raw materials, heat preservation and dehydration at 45°C under vacuum until the water content of rapeseed oil hydration oil bottoms is about 5%, and food-grade H 2 o 2 , the addition amount is 3.0% of the mass of rapeseed oil hydration oil, and it is stirred at 40° C. for 40 minutes to achieve a light yellow color. Dehydration at 45°C under vacuum until the water content of the rapeseed oil hydration oil bottom is below 2.0%. Add acetone with 1.8 times the mass of dehydrated rapeseed oil hydration oil, keep stirring at 60°C for 1 hour, let stand to separate and remove the acetone phase, then add No. 6 solvent oil with 1.2 times the mass of dehydrated rapeseed oil hydration oil, 70 ℃ heat preservation and stirring for 45 minutes, let stand to separate the layers, separate the solid and liquid two phases, recover the No. 6 solvent oil layer at 70 ℃ under vacuum, and obtain the food-grade concentrated ra...

Embodiment 2

[0026] Rapeseed oil hydration and dephosphorization oil bottoms are used as raw materials, heat preservation and dehydration at 55°C under vacuum until the water content of rapeseed oil hydration oil bottoms is about 5%, and food-grade H 2 o 2 , the addition amount is 2.5% of the mass of the rapeseed oil hydration oil, and it is stirred at 45° C. for 40 minutes to achieve a light yellow color. Dehydration at 55°C under vacuum until the water content of the rapeseed oil hydration oil bottom is below 2.0%. Add acetone 2.0 times the mass of dehydrated rapeseed oil hydration oil, keep stirring at 55°C for 1 hour, let stand to separate and remove the acetone phase, then add No. 6 solvent oil 1.0 times the mass of dehydrated rapeseed oil hydration oil, 70 ℃ heat preservation and stirring for 1 hour, let stand to separate the layers, separate the solid-liquid two phases, put the No. 6 solvent oil layer under vacuum at 70 ℃ to recover the No. 6 solvent oil in the liquid phase, and ob...

Embodiment 3

[0028] Rapeseed oil hydration and dephosphorization oil bottoms are used as raw materials, heat preservation and dehydration at 55°C under vacuum until the water content of rapeseed oil hydration oil bottoms is about 5%, and food-grade H 2 o 2 , the addition amount is 3.5% of the mass of rapeseed oil hydration oil, and it is stirred at 40°C for 30 minutes to achieve a light yellow color. Dehydration at 45°C under vacuum until the water content of the rapeseed oil hydration oil bottom is below 2.0%. Add acetone 2.0 times the mass of dehydrated rapeseed oil hydration oil, keep stirring at 60°C for 45 minutes, let stand to separate and remove the acetone phase, then add No. 6 solvent oil 1.2 times the mass of dehydrated rapeseed oil hydration oil, 65 ℃ heat preservation and stirring for 45 minutes, let stand to separate the layers, separate the solid and liquid two phases, recover the No. 6 solvent oil layer at 70 ℃ under vacuum, and obtain the food-grade concentrated rapeseed p...

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Abstract

A process for preparing the food-class concentrated rape phosphatide includes such steps as providing the hydrated rapeseed oil dregs, decoloring, dewatering, pre-deoiling to remove neutral oil, adding solvent oil No.6, stirring at 55-75 deg.C, laying aside for layering, taking solvent oil layer, and recovering solvent oil to obtain product.

Description

(1) Technical field [0001] The invention belongs to the field of oil engineering, in particular to a preparation method of food-grade concentrated rapeseed phospholipid. (2) Background technology [0002] Rapeseed is one of the oilseeds with the largest output in the world and the most planted oilseed in China, so the rapeseed phospholipid resource is very rich. The utilization of rapeseed phospholipids is currently processed with rapeseed oil refining by-products as raw materials at home and abroad. Because the phospholipid content of rapeseed is lower than that of soybean, it is more difficult to separate and purify. So far, rapeseed phospholipid has only feed grade products, which are used as feed additives. Feed-grade rapeseed phospholipids are produced from refined, hydrated and dephosphorized oil feet of rapeseed oil, which is obtained by vacuum dehydration. The content of phospholipids is about 20%. Since it contains nearly 70% neutral oil, the moisture requirement ...

Claims

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Application Information

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IPC IPC(8): C07F9/10
Inventor 钱俊青
Owner ZHEJIANG UNIV OF TECH
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