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Hybrid glyceride, production method and application
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A production method and technology for glycerides, applied in the application, chemical instruments and methods, preparation of carboxylate, etc., can solve the problems of slow reaction, unsuitable production, high price, etc., and achieve the effect of improving the sterilization effect
Active Publication Date: 2020-11-17
山东亚太海华生物科技有限公司 +1
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Patent 201510874064.9 discloses a method for preparing structural glycerides using a two-step lipase-catalyzed method. This patent is based on algae oil mixed oil, which is obtained by replacing the 1,3-position fatty acid in algae oil with medium-chain fatty acid catalyzed by lipase. Fatty acid glycerides hybridized with medium-chain fatty acids and omega-3 fatty acids are used to produce health-care oils; at the same time, this patented technology uses lipase as a catalytic medium, which is expensive and slow in response, and the high production cost is not suitable for bulk products such as feed additives. production of products
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Embodiment 1
[0028] Embodiment 1: the production method of hybrid glyceride, it comprises the steps:
[0029] 1. Inject glycerin and butyric acid into the reactor at a molar ratio of 2:1, and mix thoroughly by stirring;
[0030] 2. Add the catalyst p-toluenesulfonic acid according to 0.5% of the mass of glycerin and butyric acid, and continue stirring for 30 minutes to mix;
[0031] 3. Heat to 150 degrees Celsius, react at 160 rpm for 25 hours, and cool naturally;
[0032] 4. Let the reaction solution stand for 2 hours, separate the unreacted glycerin, and the upper layer is crude 1-monobutyrin;
[0033] 5. Add lauric acid to the crude product of 1-monobutyrin, the molar ratio of 1-monobutyrin crude product to lauric acid is 1:2;
[0034] 6. Add 1 times the volume of the reaction solution to the reaction kettle chloroform-ethyl acetate mixture (1:1, volume ratio);
[0035] 7. Heat to 160 degrees Celsius, react at 160 rpm for 30 hours, cool naturally, and cool down to 80 degrees Celsius;...
Embodiment 2
[0039] Embodiment 2: the production method of hybrid glyceride, it comprises the steps:
[0040] 1. Inject glycerin and butyric acid into the reactor at a molar ratio of 2:1, and mix thoroughly by stirring;
[0041] 2. Add the catalyst p-toluenesulfonic acid according to 1.0% of the mass of glycerin and butyric acid, and continue stirring for 40 minutes to mix;
[0042] 3. Heat to 165 degrees Celsius, react at 160 rpm for 27 hours, and cool naturally;
[0043] 4. The reaction solution was left to stand for 3 hours, and the unreacted glycerin was separated, and the upper layer was crude 1-monobutyrin;
[0044] 5. Add lauric acid to the crude product of 1-monobutyrin, the molar ratio of 1-monobutyrin crude product to lauric acid is 1:2;
[0045] 6. Add 2 times the volume of chloroform-ethyl acetate mixture (2:1, volume ratio) of the reaction solution into the reaction kettle;
[0046] 7. Heat to 170 degrees Celsius, react at 160 rpm for 32 hours, cool naturally, and cool down t...
Embodiment 3
[0050] Embodiment 3: the production method of hybrid glyceride, it comprises the steps:
[0051] 1. Inject glycerin and butyric acid into the reactor at a molar ratio of 2:1, and mix thoroughly by stirring;
[0052] 2. Add the catalyst p-toluenesulfonic acid according to 1.5% of the mass of glycerin and butyric acid, and continue stirring for 30-60 minutes to mix;
[0053] 3. Heat to 180 degrees Celsius, react at 160 rpm for 28 hours, and cool naturally;
[0054] 4. Let the reaction solution stand for 3 hours to separate the glycerol for the reaction, and the upper layer is crude 1-monobutyrin;
[0055] 5. Add lauric acid to the crude product of 1-monobutyrin, the molar ratio of 1-monobutyrin crude product to lauric acid is 1:2;
[0056] 6. Add 3 times the volume of chloroform-ethyl acetate mixture (1:2, volume ratio) of the reaction solution into the reaction kettle;
[0057] 7. Heat to 190 degrees Celsius, react at 160 rpm for 35 hours, cool naturally, and cool down to 80...
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Abstract
The invention provides a heterozygous glyceride and a production method and application thereof. The heterozygous glyceride is prepared from glyceride and white carbon black in a weight ratio of 1:1, wherein butyric acid resides at the first site of the glyceride, lauric acid resides at the second and third sites of the glyceride, and a molar ratio of the butyric acid to the lauric acid of 1:2. The production method comprises the following production steps: injecting glycerol and butyric acid into a reaction kettle in a molar ratio of 2:1; adding p-toluenesulfonic acid as per 0.5-1.5% weight of the glycerol and the butyric acid, and uniformly mixing; heating to a range of 150-180 DEG C, reacting at 160 r / min for 25-28 hours, and naturally cooling; standing for 2-3 hours and separating out unreacted glycerol; adding lauric acid to the crude product 1-glycerol monobutyrate; adding a chloroform-ethyl acetatemixed solution to the reaction kettle in a volume 1-3 times that of the reaction solution; heating to a range of 160-190 DEG C, reacting at 160 r / min for 30-35 hours, and naturally cooling to reduce the temperature to 80 DEG C; maintaining the rotating speed for 2 hours and the temperature at 80 DEG C, and recovering the chloroform-ethyl acetatemixed solution; and washing the crude product glyceride by using distilled water in a triple volume for 3 times to obtain heterozygous glyceride as a mixture of 1-butyric acid-2,3-lauric acid glyceride and white carbon black in equal weight. The heterozygous glyceride is used as a feed additive.
Description
technical field [0001] The present invention relates to a production method and application of a hybrid glyceride, in particular to a 1-butyric acid-2,3- Preparation method of glyceryl laurate preparation and its application in promoting intestinal health of livestock and poultry. Background technique [0002] The antibacterial effect of butyric acid occurs during the growth of mature bacteria. Butyric acid molecules enter the interior of harmful bacteria and dissociate into butyrate and hydrogen ions. The concentration of hydrogen ions increases, lowers the pH in the cell solution, kills harmful bacteria, and promotes the proliferation of acidophilic bacteria such as lactic acid bacteria; butyric acid inhibits the growth of harmful bacteria growth, reduce the discharge of harmful bacterial toxins, and then protect the intestinal mucosa from toxins; butyric acid, as a quick-acting carbon source for intestinal epithelial cells, does not need to go through the tricarboxylic a...
Claims
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Application Information
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