Method for preparing edible grade transparent concentrated soybean phospholipid

A soybean lecithin, edible-grade technology, applied in the field of oil processing, can solve the problems of dark color and poor transparency of concentrated soybean lecithin, and achieve the effect of solving the dark color and improving product quality.

Inactive Publication Date: 2017-06-20
COFCO GROUP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The core of the present invention is to use soybean crude oil as raw material without using organic solvents, and at the same time solve the problems of dark color and poor tra

Method used

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  • Method for preparing edible grade transparent concentrated soybean phospholipid

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Using soybean crude oil as a raw material, the soybean crude oil is filtered through a cellulose filter cake layer, wherein the amount of cellulose is 0.01% of the weight of the soybean crude oil, and then filtered through a filter membrane with a pore size of 20 μm. Add water equivalent to 0.1% of the weight of soybean crude oil to the filtered soybean crude oil, carry out hydration reaction for 5 minutes, and the reaction temperature is 30° C., and the phospholipids in the soybean crude oil and water form a jelly. Centrifuge at a centrifugal speed of 2500 rpm for 10 min to obtain a jelly after centrifugation, add hydrogen peroxide equivalent to 0.1% of its weight to the jelly after centrifugation, and carry out a decolorization reaction at a temperature of 20 °C, the decolorization time is 5min, and the decolorized product is obtained. Then, the decolorized product is evaporated and dehydrated, the temperature is controlled at 90°C, the vacuum degree of evaporation is...

Embodiment 2

[0035]Using soybean crude oil as a raw material, the soybean crude oil is filtered through a cellulose filter cake layer, wherein the amount of cellulose is 5% of the weight of the soybean crude oil, and then filtered through a filter membrane with a pore size of 0.6 μm. Water corresponding to 10% of the weight of soybean crude oil was added to the filtered soybean crude oil, and the hydration reaction was carried out for 60 minutes at a reaction temperature of 90.2° C., and the phospholipids in the soybean crude oil and water formed a jelly. Centrifuge at a centrifugal speed of 2500 rpm for 10 min to obtain a jelly after centrifugation, add hydrogen peroxide equivalent to 5% of its weight to the jelly after centrifugation, and carry out a decolorization reaction at a temperature of 80 °C, the decolorization time was 180min, and the decolorized product was obtained. Then, the decolorized product is evaporated and dehydrated, the temperature is controlled at 90°C, the evaporati...

Embodiment 3

[0037] Using soybean crude oil as a raw material, the soybean crude oil is filtered through a cellulose filter cake layer, wherein the amount of cellulose is 0.2% of the weight of the soybean crude oil, and then filtered through a filter membrane with a pore size of 3 μm. Water corresponding to 1% of the weight of soybean crude oil is added to the filtered soybean crude oil, and the hydration reaction is carried out for 20 minutes at a reaction temperature of 40° C., and the phospholipids in the soybean crude oil and water form a jelly. Centrifuge at a centrifugal speed of 2500 rpm for 10 min to obtain a jelly after centrifugation, add hydrogen peroxide equivalent to 0.5% of its weight in the jelly after centrifugation, and carry out a decolorization reaction at a temperature of 30 °C, the decolorization time is 30min, and the decolorized product is obtained. Then, the decolorized product is evaporated and dehydrated, the temperature is controlled at 90°C, the vacuum degree of...

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Abstract

The invention provides a method for preparing edible grade transparent concentrated soybean phospholipid; the Gartner color of the phospholipid obtained by the method is less than 8, the transparency is high, the peroxide value is less than 10 meq/kg, the amount of a residual solvent is less than 50 mg/kg, and indicators meet the requirements of food phospholipid. Soybean crude oil is directly used as raw material, an organic solvent is not required to be added in the preparation process, no residual risk of the organic solvent exists, and at the same time, the potential safety hazard in the production process is reduced. In addition, the method solves the problems of deep color and poor transparency of concentrated soybean phospholipid in China and can realize industrialized production.

Description

technical field [0001] The invention relates to the field of oil processing, in particular to the processing of phospholipids, and more particularly to a method for directly preparing food-grade phospholipids using soybean crude oil as a raw material without using organic solvents. Background technique [0002] Phospholipids are a class of lipid compounds with important physiological functions. As a natural food additive, phospholipids are widely used in a huge amount. Concentrated soybean lecithin is mainly a by-product of soybean crude oil processing. Generally, hydrated oil foot is obtained through hydration and degumming, and then the finished product is obtained through dehydration. At present, the quality of domestic concentrated soybean lecithin is quite different from that of similar foreign products, mainly because of dark color, high impurity content and low transparency, which makes the added value of domestic concentrated soybean lecithin low, and the product ap...

Claims

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Application Information

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IPC IPC(8): C07F9/10
CPCC07F9/103
Inventor 黄昭先陆健宋长虹王满意陈寒刚
Owner COFCO GROUP
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