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Preparation method of moderately processed ARA (Arachidonic acid) microalgae grease

A kind of microalgae oil, moderate technology, applied in the direction of fat oil/fat refining, edible oil/fat, fat production, etc., can solve the problems of unfavorable human health, waste of resources and energy, loss of nutrients, etc., to reduce the content of trans fatty acids, Reduce energy consumption and enterprise production cost, improve quality and quality effect

Active Publication Date: 2013-10-16
青岛海智源生命科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to produce qualified ARA microalgae oil and ensure its shelf life, the crude oil of ARA microalgae oil needs to be degummed, deacidified, and deodorized to remove colloids, free acids, and heavy metal ions in the oil. Over-processing exists in the current field of oil finishing, which not only causes waste of resources and energy, but also causes the loss of beneficial micronutrients naturally present in oil, and also produces accompanying substances that are not conducive to human health. trans fatty acids

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The crude oil of ARA microalgae grease is heated up to 70°C through a heat exchanger, and citric acid with a concentration of 0.3% by weight is added to 28%, reacted in an acidification tank for 30 minutes, added 2.0% lye for flocculation, added hot soft water with a weight of 1.8%, and then React in the hydration tank for 50 minutes, raise the temperature to 85°C and centrifuge to separate the oil foot and degummed oil, and dry the degummed oil to remove water and residual solvent.

[0029] Lower the oil temperature of the degummed oil to 40°C, then add 6.5% lye to react for 50-65 minutes to carry out alkali refining and deacidification; raise the temperature to 85°C for centrifugation, and add 90°C soft water to wash with 7.0% of the oil weight , centrifuged to obtain neutralized oil;

[0030] The ARA microalgae oil after alkali refining and neutralization is dried at 100°C, and then mixed with a decolorizing agent (the decolorizing agent is a mixture of activated car...

Embodiment 2

[0034] The crude oil of ARA microalgae grease is heated up to 75°C through a heat exchanger, and citric acid with a concentration of 0.3% by weight is added to 30%, reacted in an acidification tank for 25 minutes, added 2.2% lye for flocculation, and hot soft water with a weight of 1.0% is added to the oil. React in the hydration tank for 45 minutes, raise the temperature to 88°C and centrifuge to separate the oil foot and degummed oil, and dry the degummed oil to remove water and residual solvent.

[0035] Lower the oil temperature of the degummed oil to 40°C, then add 6.0% lye to react for 58 minutes to carry out alkali refining and deacidification; raise the temperature to 85°C for centrifugation, and add 90°C soft water to wash with 6.0% of the oil weight, centrifuge Separate to get neutral oil;

[0036] The ARA microalgae oil after alkali refining and neutralization is dried at 100 DEG C, then mixes with decolorizing agent (decolorizing agent is activated carbon and activ...

Embodiment 3

[0040] The crude oil of ARA microalgae grease is heated up to 75°C through a heat exchanger, and citric acid with a concentration of 0.3% by weight is added to 25%, reacted in the acidification tank for 25 minutes, 2.0% lye is added for flocculation, and hot soft water with a weight of 2.0% is added to the oil. React in the hydration tank for 45 minutes, raise the temperature to 88°C and centrifuge to separate the oil foot and degummed oil, and dry the degummed oil to remove water and residual solvent.

[0041]Lower the oil temperature of the degummed oil to 40°C, then add 6.0% lye to react for 50-65 minutes to carry out alkali refining and deacidification; raise the temperature to 85°C for centrifugation, and add 90°C soft water to wash with 6.5% of the oil weight , centrifuged to obtain neutralized oil;

[0042] Dry the ARA microalgae oil after alkali refining and neutralization at 100°C, and then mix it with a decolorizing agent (the decolorizing agent is a mixture of activ...

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Abstract

The invention provides a preparation method of moderately processed ARA (Arachidonic acid) microalgae grease. The method comprises the following steps of: first, degumming to remove colloid and impurities in microalgae grease; after degumming, refining alkali and neutralizing at low temperature to remove free acids; then, decoloring in a low temperature vacuum condition to remove residual soap, phosphorus, pigments and the like; and finally, deodorizing through combination of a packed tower and a plate tower, and thermosensitively decoloring to remove fatty acid and small molecular stink substances, wherein the generation amount of trans-fatty acids can be reduced, the energy is saved and the consumption is reduced, and the quality of grease products is improved. Due to the adoption of the method, the ARA microalgae grease with low content of trans-fatty acids (less than 1.0%) can be prepared.

Description

technical field [0001] The invention relates to the technical field of oil refining, in particular to a method for preparing moderately processed ARA microalgae oil. technical background [0002] With the development of food science and technology, various functional oils and fats continue to enter people's lives and play an important role in improving people's nutrition and health. As a new resource food, ARA microalgae oil is also a functional oil rich in ARA, which can enhance memory and thinking ability, improve intelligence and promote brain development. [0003] In order to produce qualified ARA microalgae oil and ensure its shelf life, the crude oil of ARA microalgae oil needs to be degummed, deacidified, and deodorized to remove colloids, free acids, and heavy metal ions in the oil. Over-processing exists in the current field of oil finishing, which not only causes waste of resources and energy, but also causes the loss of beneficial micronutrients naturally present...

Claims

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Application Information

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IPC IPC(8): C11B3/00C11B3/06A23D9/04
Inventor 白长军宁超美白红超戚桂斌初跃峰李玉玲
Owner 青岛海智源生命科技有限公司
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