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Synthesis method of medium/long-chain triglyceride

A technology for structural triglycerides and medium-chain triglycerides is applied in the field of synthesis of medium/long-chain structural triglycerides, and achieves the effects of low production cost, simple process and ingenious conception

Active Publication Date: 2011-08-03
四川国瑞药业有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although medium / long-chain STG fat emulsions are available for sale, the main raw material medium / long-chain STG is imported from abroad. There is no relevant research report yet

Method used

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  • Synthesis method of medium/long-chain triglyceride
  • Synthesis method of medium/long-chain triglyceride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: Such as figure 1 As shown, 128g long carbon chain triglycerides (soybean oil) and 72g medium carbon chain triglycerides (caprylic acid triglyceride) are mixed, added to a closed container, and dried under magnetic stirring, vacuum and 85°C Keep the temperature at 50℃ for 30min, add 0.6g sodium methoxide, stop heating after 20min reaction, add citric acid aqueous solution to terminate the reaction, the amount of citric acid aqueous solution added is the total weight of medium-chain triglycerides and long-chain triglycerides based on citric acid 9%-11%, the mixture is centrifuged, washed with water, and vacuum dried to obtain medium / long chain STG. Determine the content of medium / long chain STG and its acid value, peroxide value and color in the product.

[0022] Determination of medium and long chain STG content: evaporative light scattering-high performance liquid chromatography (HPLC-ELSD).

[0023] Determination of acid value of medium and long chain STG: Refe...

Embodiment 2

[0027] Example 2: Such as figure 1 As shown, 192g long carbon chain triglycerides (soybean oil) and 108g medium carbon chain triglycerides (caprylic triglyceride) are mixed, added to a closed container, and dried under magnetic stirring, vacuum, and 85°C for 30 minutes , Keep the temperature at 80℃, add 1.2g of sodium methoxide, stop heating after 40 minutes of reaction, add citric acid aqueous solution to terminate the reaction, the amount of citric acid aqueous solution added is calculated as the total weight of medium-chain triglycerides and long-chain triglycerides based on the citric acid content 9%-11%, the mixture is centrifuged, washed with water, and vacuum dried to obtain medium / long chain STG. The content of medium / long-chain STG in the product and its acid value, peroxide value and color were determined, and the detection method was the same as in Example 1.

[0028] The content of the medium / long-chain STG in the obtained product is 72.36%, the acid value is 2.8 mg / ...

Embodiment 3

[0029] Example 3: Such as figure 1 As shown, 3840g long-chain triglycerides (soybean oil) are mixed with 2160g medium-chain triglycerides (caprylic triglyceride), added to a closed reactor, and dried under stirring, vacuum, and 85°C for 30 minutes , Adjust the temperature to 80℃, add 24g of sodium methoxide, stop heating after 45min of reaction, add citric acid aqueous solution to terminate the reaction, the amount of citric acid aqueous solution added is calculated as the total weight of medium chain triglycerides and long chain triglycerides based on citric acid content 9%-11%, the mixture is centrifuged, washed with water, and vacuum dried to obtain medium / long chain STG. Determine the content of medium / long chain STG and its acid value, peroxide value and color in the product.

[0030] The content of the medium / long-chain STG in the obtained product was 73.54%, the acid value was 2.1 mg / g, the peroxide value was 0.24 meq / kg, the color was yellow value 7.0, red value 0.7 (1 i...

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Abstract

The invention discloses a synthesis method of medium / long-chain triglyceride. The method comprises the following steps: weighting medium-chain triglyceride and long-chain triglyceride according to a molar ratio of 1:0.5-2, mixing, adding the mixture in a sealed vacuum reaction vessel, drying at 80-100 DEG C for 30-90min under stirring; keeping the temperature of the mixture to 50-80 DEG C, adding sodium methoxide accounting for 0.1%-0.6% of the total weight of oil under the vacuum condition to perform ester exchange reaction for 20-80min, then stopping heating, adding citric acid solution accounting for 9%-11% of the total weight of medium-chain triglyceride and long-chain triglyceride to stop the reaction, rinsing, centrifuging and performing vacuum drying to prepare the medium / long-chain triglyceride. The method disclosed by the invention has clever conception, simple process and low production cost, is suitable for industrial production and can be used to provide a selection foundation of the technological parameters of the medium / long-chain structural triglyceride (STG) synthesis and determine the specific process and parameters of the high content medium / long-chain STG synthesis.

Description

Technical field [0001] The invention belongs to the field of deep processing and modification of fats and oils, and relates to a method for synthesizing triglycerides with a medium / long chain structure. Background technique [0002] Medium / long chain structure triglyceride (medium / long chain STG) is a new structure triglyceride synthesized by esterification or transesterification. Its characteristic is that the glycerol backbone also contains medium chain fatty acids (MCFA, 8-12). -Carbon fatty acids) and long-chain fatty acids (LCFA, 14-22 carbon fatty acids). Medium / long chain STG has more advantages in nutritional metabolism than traditional long chain triglycerides (LCT), medium chain triglycerides (MCT) and physical mixed medium / long chain triglycerides (MCT / LCT). The application demand in the food and pharmaceutical industries is increasing, especially in the application of fat emulsions. Studies have shown that LCT-type fat emulsions have some defects in metabolism and i...

Claims

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Application Information

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IPC IPC(8): C11C3/10
Inventor 王兴国宋志华彭亮王一茜范时根肖捷
Owner 四川国瑞药业有限责任公司
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