Industrial continuous production method of fluid rapeseed oil phosphatide with low acid value

A technology of vegetable oil phospholipid and low acid value, which is applied in the direction of producing fat, recovering fatty substances, and recovering fat oil/fatty acid from waste, etc. It can solve the problems of vegetable oil phospholipid resource waste, pollute the environment, and high acid value, and achieve a simple and feasible processing method , No environmental pollution, rich calcium content effect

Inactive Publication Date: 2015-01-07
厦门银祥油脂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, rapeseed oil phospholipids made from refined rapeseed oil can not be used in various industries due to its high acid value and high viscosity. Most vegetable oil processing plants treat it as waste to produ

Method used

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  • Industrial continuous production method of fluid rapeseed oil phosphatide with low acid value

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1000kg of rapeseed oil legs with an acid value of 45mg / g are pumped into the preparation tank by a delivery pump, heated to make the temperature of the rapeseed oil legs in the preparation tank reach 65°C, and slowly added through a 40-mesh sieve under stirring conditions of 45rpm / min. Concentration is 200 kilograms of calcium hydroxide solution of 15%, and the acid value of neutralizing vegetable oil foot is 18.5mg / g, and viscosity is 20000 centipoises.

[0027] Then the screw pump is pumped into a thin-film evaporator with a temperature of 115°C and a vacuum of 0.095 MPa for evaporating and dehydrating for 2 to 3 minutes, so that the water content of rapeseed oil phospholipids reaches below 1%, and then pumped into a phospholipid cooler by a screw pump to cool, and then stored in phospholipids. Cans are weighed and packed.

Embodiment 2

[0029] 2000kg of vegetable oil feet with an acid value of 54mg / g is pumped into the preparation tank by a transfer pump, heated to make the temperature of the vegetable oil feet in the preparation tank reach 75°C, and slowly added through an 80-mesh sieve under the stirring condition of 60rpm / min. Concentration is 200 kilograms of calcium hydroxide solution of 15%, and the acid value of neutralizing vegetable oil foot is about 20.5mg / g, and viscosity is 15000 centipoise.

[0030] Then the screw pump is pumped into a thin-film evaporator with a temperature of 125°C and a vacuum of 0.095 MPa for evaporating and dehydrating for 2 to 3 minutes, so that the water content of rapeseed oil phospholipids reaches below 1%, and then pumped into a phospholipid cooler by a screw pump to cool, and then put into phospholipid storage Cans are weighed and packed.

Embodiment 3

[0032] 5000kg of rapeseed oil legs with an acid value of 43mg / g are pumped into the preparation tank by a delivery pump, heated to make the temperature of the rapeseed oil legs in the preparation tank reach 55°C, and slowly added through a 60-mesh sieve under stirring conditions of 30rpm / min. Concentration is 300 kilograms of calcium chloride solution of 15%, and the acid value of neutralizing vegetable oil foot is about 17.5mg / g, and viscosity is 13000 centipoise.

[0033] Then the screw pump is pumped into a thin film evaporator with a temperature of 130°C and a vacuum of 0.095 MPa for evaporating and dehydrating for 2 to 3 minutes, so that the water content of rapeseed oil phospholipids reaches below 1%. Cans are weighed and packed.

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Abstract

The invention provides an industrial continuous production method of fluid rapeseed oil phosphatide with a low acid value. The preparation method comprises the following steps: step a, adding 0.15 wt% of phosphoric acid and 6.0 wt% of hot water with a temperature of 80 DEG C into crude rapeseed oil prepared through a squeezing method or a leaching method to carry out hydration degumming and centrifugation so as to obtain rapeseed leftover and rapeseed oil; step b, adding a calcium hydroxide solution, which has a concentration of 5% to 30% and has been sieved by a sieve with a size of 20 to 40 meshes, into the separated rapeseed leftover according to the acid value of the rapeseed leftover, evenly mixing under heating and stirring to reduce the acid value and viscosity of the rapeseed leftover; step c, pumping the de-acidified rapeseed leftover obtained in the step b to a fixed-type scarper film evaporator with a temperature of 85 to 120 DEG C and a vacuum degree of 0.090-0.097 MPa by a conveying pump to carry out continuous evaporation, concentration, and dehydration until the water content of the rapeseed leftover reaches 1% or less so as to obtain the fluid rapeseed oil phosphatide with a low acid value. The provided method can achieve continuous massive production, and the processing method is simple and feasible, and does not generate any environmental pollution.

Description

technical field [0001] The invention relates to the field of food industry, in particular to a method for preparing rapeseed oil feet, a by-product of rapeseed oil refining. Background technique [0002] Rapeseed oil phospholipids are the by-products of rapeseed oil refining—the deep-processed products of hydrated oil feet, mainly including phosphatidylcholine (PC), phosphatidylcholine (PE), phosphatidic acid (PA), and phosphatidylinositol (PI) , sugar esters and glycerides and other components. Rapeseed oil phospholipid is an excellent natural emulsifier and nutrient, which can be used in industrial fields such as feed, food, paint, daily chemical and pesticide. [0003] Domestic production and development of rapeseed phospholipids is very little. With the development of my country's double-low rapeseed industry, the amount of erucic acid and glucosinolates contained in double-low rapeseed is extremely low. At the same time, the scale of rapeseed processing enterprises co...

Claims

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Application Information

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IPC IPC(8): C11B13/02
CPCY02W30/74C11B13/02
Inventor 薛武军李桂华苏永裕孙勤陈琼华
Owner 厦门银祥油脂有限公司
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