Preparation method for DHA (Docosahexenoic Acid)-fortified soybean oil

A nutritionally enhanced soybean oil technology, applied in the fields of edible oil/fat, food science, application, etc., can solve problems such as doubts about the safety of antioxidants, and achieve the effect of enhancing storage stability and enriching nutrition

Active Publication Date: 2012-07-25
SHANDONG BOHI INDUSTRY CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most companies now protect oils by adding chemically synthesized antioxidants (TBHQ, etc.), but the safety of such antioxidants is still questioned

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Pump 110kg DHA microalgae oil (containing 38% DHA) into a stirring tank through a transfer pump, add 22kg coarse pore chromatography silica gel, stir for 30 min under vacuum and 50°C, and pump it into a leaf filter through a transfer pump to filter. The oil is separated from the silica gel, and the oil is transported to the bag filter by the pump for fine filtration to further remove the residual silica gel, and then the oil is transported to the grease blending tank. According to the formula ratio, set the metering pump, pump the corresponding 9890.2kg soybean oil and 2kg vitamin E into the oil blending tank, stir for 5 minutes under normal temperature and nitrogen filling conditions to mix evenly, and then pump the oil into the nitrogen filling filling production line for filling. Get DHA fortified nutritional soybean oil products.

[0025] The index detection of the DHA-containing soybean oil product finally obtained in the present invention showed that the content of t...

Embodiment 2

[0027] 230kg DHA microalgae oil (containing 38% DHA) is pumped into the mixing tank through a transfer pump, 23kg of coarse pore chromatography silica gel is added, and the mixture is stirred for 25 min under vacuum and 60°C, and then pumped into the leaf filter through the transfer pump to filter. The oil is separated from the silica gel, and the oil is transported to the bag filter by the pump for fine filtration to further remove the residual silica gel, and then the oil is transported to the grease blending tank. According to the formula ratio, set the metering pump, pump the corresponding 9762.3kg soybean oil and 10kg vitamin E into the oil blending tank, stir for 10min under the condition of normal temperature and nitrogen filling, and mix evenly, then pump the oil into the nitrogen filling production line for filling. Get DHA soybean oil products.

[0028] The index detection of the DHA-containing soybean oil product finally obtained in the present invention showed that th...

Embodiment 3

[0030] Pump 105kg DHA microalgae oil (containing 38% DHA) into the mixing tank through a transfer pump, add 21kg of coarse pore chromatography silica gel, stir for 20 min under vacuum at 55°C, and pump it into a leaf filter through a transfer pump to filter. The oil is separated from the silica gel, and the oil is transported to the bag filter by the pump for fine filtration, to further remove the residual silica gel, and then transport the oil to the grease blending tank. According to the formula ratio, set the metering pump, pump the corresponding 4894.1kg soybean oil and 3kg vitamin E into the oil blending tank, stir for 7 minutes under the condition of normal temperature and nitrogen filling, and mix well, then pump the oil into the nitrogen filling filling production line for filling. Get DHA soybean oil products.

[0031] The index detection of the DHA-containing soybean oil product finally obtained in the present invention showed that the content of trans fatty acid was 0....

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PUM

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Abstract

The invention relates to a preparation method for DHA (Docosahexenoic Acid)-fortifiedsoybean oil. The preparation method comprises the step of adding treated DHA microalgae oil and natural vitamin E into soybean oil under a nitrogen charging condition, wherein the treated DHA microalgae oil is the DHA microalgae oil after being subjected to chromatography silica gel treatment to remove free fattyacid and peroxide, and filtering. According to the preparation method provided by the invention, in order to solve the problem of the increasing of peroxide value and acid value after the DHA microalgae oil is stored for a period of time and in order to prevent the DHA microalgae oil added into the soybean oil from being further oxidized and acetified, the DHA microalgae oil is treated by the chromatography silica gel before being added, so that the peroxide and the free fatty acid are adsorbed and removed from oil, and the storing stability of the DHA microalgae oil after being added into the soybean oil is ensured.

Description

Technical field [0001] The invention relates to the field of edible oil processing. Background technique [0002] DHA (docosahexaenoic acid) is an omega-3 polyunsaturated fatty acid, commonly known as brain gold, and is an essential fatty acid with important physiological regulation functions for the human body. It can promote brain development of infants and young children, improve memory, lower blood fat, lower blood pressure, lower cholesterol, prevent cardiovascular diseases such as coronary heart disease, improve brain function, protect retina, improve vision, fight cancer, treat tracheitis, prevent diabetes, and delay aging And many other physiological functions. In view of this, many countries in Europe and the United States have formulated daily DHA intake standards, ranging from 160-400 mg / day. my country has not yet established a standard for daily DHA intake. At present, my country's per capita intake is only 40mg / day, which is far below the recommended standard for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23D9/007
Inventor 白长军彭亮杨小雁戚桂斌白红超
Owner SHANDONG BOHI INDUSTRY CO LTD
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