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Novel degreasing process of egg yolk powder

A technology of egg yolk powder and egg oil, applied in the direction of fat production, fat oil/fat production, fat oil/fat refining, etc., can solve the problems of low extraction pressure, low extraction efficiency, high extraction pressure, etc., and achieve stable operation process and high extraction efficiency High, high-quality results

Inactive Publication Date: 2021-08-06
ZHEJIANG KANGLAITE PHARM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Existing supercritical CO2 fluid extraction technology for extracting defatted egg yolk powder at present, patent number CN107569868 A Shortcoming of prior art: extraction pressure is big, extraction temperature is high, and extraction efficiency is low. Under similar circumstances, the extraction pressure used is lower, the extraction temperature is lower, and the extraction efficiency is higher, thereby reducing energy consumption and cost

Method used

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  • Novel degreasing process of egg yolk powder
  • Novel degreasing process of egg yolk powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1) granulation: add 95% food-grade ethanol of 15% powder weight to the egg yolk powder qualified in quality inspection, cross a 5mm aperture sieve to make cylindrical egg yolk powder particles with a particle diameter of 5mm;

[0029] 2) Drying: Dry the granulated cylindrical egg yolk powder granules at 45°C under dry heat conditions for 50 minutes, and the granules are required to still contain no less than 2% ethanol by weight of the granules as an entrainer during supercritical extraction;

[0030] 3) Filling: Fill the barrel with the dried cylindrical egg yolk powder particles and put them into a 1L extraction kettle;

[0031] 4) Extraction: main parameters of extraction: extraction pressure 27Mpa, temperature 38°C; flow rate 50L / h, extraction time 90min;

[0032] 5) Separation: the extracted mixed material passes through the separation tank, where the egg oil settles and separates at the bottom of the separation tank, the separation pressure is 4MPa, and the temper...

Embodiment 2

[0038] 1) granulation: add 95% food-grade ethanol of 15% powder weight to the egg yolk powder qualified in quality inspection, cross a 5mm aperture sieve to make cylindrical egg yolk powder particles with a particle diameter of 5mm;

[0039] 2) Drying: Dry the granulated cylindrical egg yolk powder granules at 45°C under dry heat conditions for 50 minutes, and the granules are required to still contain no less than 2% ethanol by weight of the granules as an entrainer during supercritical extraction;

[0040] 3) Filling: Fill the barrel with the dried cylindrical egg yolk powder particles and put them into a 1L extraction kettle;

[0041] 4) Extraction: main parameters of extraction: extraction pressure 25Mpa, temperature 35°C; flow rate 45L / h, extraction time 100min;

[0042] 5) Separation: the extracted mixed material passes through the separation tank, where the egg oil settles and separates at the bottom of the separation tank, the separation pressure is 4MPa, and the tempe...

Embodiment 3

[0048] 1) granulation: add 95% food-grade ethanol of 15% powder weight to the egg yolk powder qualified in quality inspection, cross a 5mm aperture sieve to make cylindrical egg yolk powder particles with a particle diameter of 5mm;

[0049] 2) Drying: Dry the granulated cylindrical egg yolk powder granules at 45°C under dry heat conditions for 50 minutes, and the granules are required to still contain no less than 2% ethanol by weight of the granules as an entrainer during supercritical extraction;

[0050] 3) Filling: Fill the barrel with the dried cylindrical egg yolk powder particles and put them into a 1L extraction kettle;

[0051] 4) Extraction: main parameters of extraction: extraction pressure 25Mpa, temperature 40°C; flow rate 50L / h, extraction time 90min;

[0052] 5) Separation: the extracted mixed material passes through the separation tank, where the egg oil settles and separates at the bottom of the separation tank, the separation pressure is 4MPa, and the temper...

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Abstract

The invention relates to a preparation method of defatted egg yolk powder. The method comprises the following steps: 1) granulating: adding 95% food-grade ethanol which accounts for 10-20% of the weight of the egg yolk powder into the egg yolk powder, and sieving with a sieve with the aperture of 5 mm to prepare cylindrical egg yolk powder particles with the particle size of 5 mm; 2) drying: drying the particles for 30-60 minutes under a dry and hot condition of 40-50 DEG C, wherein the granules are required to still contain ethanol which is not less than 2% of the weight of the granules; (3) charging: filling a charging barrel with the particles, and putting the charging barrel into an extraction kettle; 4) extracting: boosting the pressure, and starting extraction after reaching a stable state according to the main parameters of extraction that the extraction pressure is 20-27 Mpa, and the temperature is 32-50 DEG C, the flow rate is 80-320 L / h.kg, and the extraction time is 1-3 h; 5) separating: enabling the extracted mixed material to pass through a separation kettle, and settling, separating and precipitating the egg yolk oil at the bottom of the separation kettle, wherein the separation pressure is 4-6 MPa, and the temperature is 20-50 DEG C; and 6) discharging oil: discharging the separated egg yolk oil from an oil outlet at the bottom of the separation kettle every 15-30 minutes.

Description

technical field [0001] The invention relates to a method for degreasing egg yolk powder, in particular to a new technology for extracting egg yolk powder with supercritical carbon dioxide fluid to prepare defatted egg yolk powder. Used in food and medicine. Background technique [0002] Egg yolk powder is a powder made from fresh eggs through multiple processes. It is the most ideal substitute for fresh eggs. It has good emulsifying properties and is an ideal raw material for food, high-grade feed and other products. It is more effective than eggs. More premium features. [0003] Existing supercritical CO2 fluid extraction technology for extracting defatted egg yolk powder at present, patent number CN107569868 A Shortcoming of prior art: extraction pressure is big, extraction temperature is high, and extraction efficiency is low. In similar cases, the extraction pressure is lower, the extraction temperature is lower, and the extraction efficiency is higher, thereby reducin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/02C11B1/10C11B3/00
CPCC11B1/02C11B1/104C11B3/00
Inventor 董建刚宋林强周锋宋婵冯桂芳
Owner ZHEJIANG KANGLAITE PHARM CO LTD
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