Composition containing 1,3-di-unsaturated fatty acyl-2-saturated fatty acyl glyceryl ester as well as preparation method and application thereof

A technology of fatty acylglycerol and unsaturated fatty acid, which is applied to the composition containing 1,3-dioleoyl-2-palmitoylglyceride (OPO) to prepare infant formula food and infant formula milk powder, reaching The effect of improving production efficiency and product yield

Active Publication Date: 2012-12-19
WILMAR SHANGHAI BIOTECH RES & DEV CENT
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AI-Extracted Technical Summary

Problems solved by technology

[0013] Although the above-mentioned patents increase the content of C52 in the final product through the selection of raw materials and pretreatment of the reaction ...
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Abstract

The invention relates to relates to a method for preparing a composition containing 1,3-di-unsaturated fatty acyl-2-saturated fatty acyl glyceryl ester, particularly containing 1,3-di-oleoyl-2-palmitoyl glyceryl ester (OPO), which comprises the steps of: carrying out random ester exchange on an ester rich in saturated fatty acid residue and an ester rich in unsaturated fatty acid residue serving as reaction substrates, and carrying out enzymatic oriented ester exchange on the reaction mixture and unsaturated fatty acid or unsaturated fatty acid ester. The invention also provides application of the composition to preparing formula milk powder for infant and preparing synthetic food for infant, and the formula milk powder for infant and the synthetic food for infant containing the composition.

Application Domain

Milk preparationFatty acid esterification +3

Technology Topic

Unsaturated fatSaturated fatty acid +5

Examples

  • Experimental program(5)
  • Comparison scheme(6)

Example Embodiment

[0098] Example 1
[0099] Grease composition 1
[0100] Mix palm oil stearin with IV=14.4 and high oleic sunflower oil in a ratio of 3:1, heat to 105°C, vacuum and stir at the same time, keep it for 1 hour, and dehydrate; add the above mixture weight to the transesterification tank 0.5% sodium methoxide as a catalyst, react at 80°C for 45 minutes; then add 20% citric acid aqueous solution (concentration 8%) of the above mixture weight and continue stirring for 20 minutes to terminate the reaction. Wash the reactant with water to pH=7, desoap, and then heat to 105°C for 30 minutes to dehydrate and dry; add 2% activated clay by weight of the mixture after dehydration and drying, and keep it at 110°C for 30 minutes for decolorization. Filter to obtain transesterified grease. Finally, the obtained transesterified grease was deodorized at 240°C, 2mbar and nitrogen blowing for 3 hours to obtain refined grease. The refined oil and oleic acid were mixed in a ratio of 1:2 and passed through a packed bed filled with 100g Lipozyme RM IM lipase for enzymatic directional transesterification. The temperature of the mixture and lipase was 60°C. The directional transesterification mixture obtained by the reaction was subjected to reduced pressure molecular distillation to remove fatty acids therein, and finally oil composition 1 was obtained. The results are shown in Table 1.

Example Embodiment

[0110] Example 2
[0111] Grease composition 4
[0112] Mix palm oil stearin with IV=22 and high oleic sunflower oil in a ratio of 3:1, add 6% (weight) lipase Lipozyme TL IM, and stir at 65°C for 24 hours for randomization reaction. Then the lipase is filtered and the fat is physically refined. Including adding 2% by weight of activated clay to the enzymatic transesterification mixture, decolorizing by keeping it at 110°C for 30 minutes, filtering, and finally deodorizing the obtained transesterified grease at 240°C, 2mbar and nitrogen blowing for 3 hours to obtain refining grease. Finally, the refined oil and oleic acid were mixed in a ratio of 1:2 and passed through a packed bed filled with 100g Lipozyme RM IM lipase for enzymatic directional transesterification. The temperature of the mixture and lipase was 60°C. The directional transesterification mixture obtained by the reaction was subjected to reduced pressure molecular distillation to remove fatty acids therein, and finally oil composition 4 was obtained. The results are shown in Table 2.

Example Embodiment

[0121] Example 3
[0122] Grease composition 7
[0123] Mix palm oil stearin with IV=34.6 and high oleic sunflower oil in a ratio of 4:1, heat to 105°C, vacuum and stir at the same time, keep for 1 hour, and dehydrate; add the weight of the mixture to the transesterification tank 0.5% sodium methoxide as a catalyst, react at 80°C for 45 minutes; then add 20% citric acid aqueous solution (concentration 8%) of the above mixture weight, continue stirring for 20 minutes to terminate the reaction. Wash the reactant with water to pH=7, desoap, and then heat to 105°C for 30 minutes to dehydrate and dry; add 2% activated clay by weight of the mixture after dehydration and drying, and keep at 110°C for 30 minutes for decolorization. Filter to obtain transesterified grease. Finally, the obtained transesterified grease was deodorized at 240°C, 2mbar and nitrogen blowing for 3 hours to obtain refined grease. The refined oil and oleic acid were mixed in a ratio of 1:2 and passed through a packed bed filled with 100g Lipozyme RM IM lipase for enzymatic directional transesterification. The temperature of the mixture and lipase was 60°C. The directional transesterification mixture obtained by the reaction was subjected to reduced pressure molecular distillation to remove fatty acids therein, and finally oil composition 7 was obtained. The results are shown in Table 3.

PUM

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