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A kind of oil composition containing 1,3-dioleic acid-2-palmitic acid triglyceride and its preparation method

A technology for palmitic acid triglyceride and oil composition, which is applied in the field of recycling the fatty acid mixture, can solve the problems of increasing the cost of preparing OPO, increasing the cost of producing OPO, increasing the cost, and improving health attributes, reducing difficulty and efficiency. cost, cost reduction effect

Active Publication Date: 2021-06-11
COFCO GROUP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through this method, the content of sn-2 palmitic acid in the product can reach more than 50%, and the content of C52 triglycerides can reach more than 40%. Alcohol with 1 carbon atom is used as the reaction of alcoholysis agent, the implementation of the whole production process must be completed in the explosion-proof workshop, and the production equipment involved must also carry out explosion-proof treatment and transformation, in addition, also need to increase the fractionation device of alcohol, and then Greatly increased the cost input of producing OPO
Finally, due to the increase of sn-1,3-selective alcoholysis steps, the amount of sn-1,3-selective enzyme preparation is increased, thus further increasing the cost of OPO preparation

Method used

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  • A kind of oil composition containing 1,3-dioleic acid-2-palmitic acid triglyceride and its preparation method
  • A kind of oil composition containing 1,3-dioleic acid-2-palmitic acid triglyceride and its preparation method
  • A kind of oil composition containing 1,3-dioleic acid-2-palmitic acid triglyceride and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Weigh 0.4g ST52 palm stearin and place it in the reactor, and preheat it to 57°C, and the whole process is accompanied by mechanical stirring. Weigh 3.5g of the oleic acid mixture (wherein, by weight, the oleic acid content is 80%) and slowly add it into the preheated ST52 palm stearin, continue heating and stirring until transparent and clear. Accurately weighed 450 mg of immobilized RM IM lipase, added to the reaction mixture, and reacted at a temperature of 57° C. to obtain a crude composition 1. The content of C54 triglyceride in the crude composition 1 was monitored. When the content of C54 triglyceride reached 25%, 0.6 g of ST52 palm stearin was added to continue the reaction for 4 hours to obtain crude composition 2. The crude composition was purified by molecular distillation (evaporation temperature, 185 °C; condenser temperature, 40 °C; heat exchanger temperature, 60 °C; rotary wiper speed, 120 rpm; feed rate, 2 mL / min; absolute pressure, 2 Pa) 2. Separation ...

Embodiment 2-4

[0064] In Examples 2-4, the addition amounts of the oleic acid mixture were 5g, 4g and 3g respectively, and the addition amounts and experimental conditions of other raw materials were the same as in Example 1.

Embodiment 5-6

[0066]In embodiment 5, the first addition amount of ST52 palm stearin is 0.3g, and the addition amount is 0.7g again, and the addition amount and experimental conditions of other substances are the same as in embodiment 1.

[0067] In embodiment 6, the initial addition amount of ST52 palm stearin is 0.7g, and the addition amount is 0.3g again, and the addition amount and experimental conditions of other substances are the same as in embodiment 1.

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Abstract

The invention relates to a method for preparing an oil composition containing 1,3-dioleic acid-2-palmitic acid triglyceride (OPO). The method uses ST52 palm stearin, a conventional product in the oil industry, as a raw material. A large excess of oleic acid mixture is subjected to sn-1,3 directional transesterification in the presence of an enzyme preparation, and an oil composition containing OPO and a recyclable fatty acid mixture are obtained through separation and purification.

Description

technical field [0001] The invention belongs to the field of food processing, and in particular relates to a method for preparing an oil composition and an oil composition containing 1,3-dioleic acid-2-palmitic acid triglyceride (OPO) obtained by the method, As well as the recyclable fatty acid mixture, further, the present invention also relates to a method for reclaiming the fatty acid mixture. Background technique [0002] Triglyceride is an important source of energy for human beings. For infants in the early stages of growth, the role of triglyceride is particularly obvious. It is reported that 50-60% of the energy supply of lactating infants and young children comes from triglycerides in breast milk . In recent years, with the rapid development of social economy, people pay more and more attention to the nutrition of infant formula milk powder. However, until now, a large proportion of triglycerides contained in infant formulas have been formulated by physically blen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P7/64C11C3/10
CPCC11C3/10C12P7/6409C12P7/6454C12P7/6472
Inventor 王翔宇李世磊孔录刘孟涛王满意张建华董巍郝克非董华尚刚
Owner COFCO GROUP
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