CN102531892A - Method for preparing diacylglycerol - Google Patents
Method for preparing diacylglycerol Download PDFInfo
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- CN102531892A CN102531892A CN2012100014113A CN201210001411A CN102531892A CN 102531892 A CN102531892 A CN 102531892A CN 2012100014113 A CN2012100014113 A CN 2012100014113A CN 201210001411 A CN201210001411 A CN 201210001411A CN 102531892 A CN102531892 A CN 102531892A
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- fatty acid
- methyl ester
- acid methyl
- triglyceride
- diacylglycerol
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Abstract
A method for preparing diacylglycerol is characterized in that the mixture of fatty acid methyl ester and glycerol reacts under the catalytic action of sodium silicate that is solid catalysts so as to obtain diacylglycerol; the reaction time ranges from 0.5 to 2.5 hours; the molar ratio of fatty acid methyl ester and glycerol is 0.5:1 to 4:1; the amount of sodium silicate is 0.3 to 1.1 percent of the weight of fatty acid methyl ester; and fatty acid methyl ester refers to saturated fatty acid, and the C atom number of saturated fatty acid is an even number ranging from 14 to 20. The method can prepare diacylglycerol by taking fatty acid methyl ester and glycerol as substrates, and has the advantages of simple manufacturing technology, high yield of diacylglycerol and lower cost.
Description
Technical field
The present invention relates to a kind of preparation method of triglyceride, particularly is the method for Preparation of Catalyst triglyceride with the water glass.
Technical background
Triglyceride is domestic and international emerging a kind of lipid derivate, and it all plays important effect at aspects such as food, medical treatment, chemical industry.Triglyceride often is used as emulsifying agent to improve product quality; Also can be used as food oils and reduce the sickness rate of diseases such as obesity, hyperlipidemia and cancer effectively; Can also be used to make solid product, particularly oil-based cosmetic preparation, be used for improving adhesion, moisture retention and the extendability of product.Because of its special efficacy, triglyceride gets more and more people's extensive concerning recently.
At " preparation of water glass solid catalyst and catalyzed transesterification " (Chinese oil; The 34th the 5th phase of volume; 2009) reported that the employing water glass is as catalyzer in the literary composition; The catalysis crude cotton seed oil prepares biofuel (being fatty acid methyl ester) and prepares sweet diester with traditional use vegetables oil (being triglyceride level) with glycerine reaction and compare, and adopts fatty acid methyl ester and glycerine reaction can reduce sterically hindered between the reactant, and it is smooth more thorough to make reaction carry out ground.Employing Ca (OH) is disclosed in " research of the synthetic Tegin 55G of fatty acid methyl ester-glycerol system alcoholysis method " (Chinese oil, the 28th the 6th phase of volume, 2003)
2As catalyzer, be that substrate reactions prepares monoglyceride with fatty acid methyl ester and glycerine.Because Ca (OH)
2Have weakly alkaline, in the process of catalysis synthetic glyceride, can with product in free fatty acids generation neutralization reaction, reduced Ca (OH)
2Catalytic activity, suppressed catalytic effect.
One Chinese patent application number 03113862.4 " working method of sweet diester " discloses fixed lipase catalyzed lower alcohol of a kind of employing and triglyceride level reacted triglyceride.The lipase-catalyzed method for preparing triglyceride exist lypase source less, characteristics such as lypase costs an arm and a leg, production cost height; And the lipase immobilization process is loaded down with trivial details, has influenced large-scale industrial production.
Summary of the invention
The object of the invention provides a kind of working method for preparing triglyceride to existing weak point in the above-mentioned prior art just; Method of the present invention is catalyzer with the water glass; With fatty acid methyl ester and glycerine is substrate, the preparation triglyceride: this method production technique is simple, the triglyceride yield is high, cost is lower.
The object of the invention can be realized through following technique measures:
The preparation method of triglyceride of the present invention reacts fatty acid methyl ester and glycerol mixture to obtain triglyceride under the katalysis of solid catalyst water glass; Reaction times is 0.5 ~ 2.5 hour; The mol ratio of said fatty acid methyl ester and glycerine is 0.5:1 ~ 4:1; The water glass consumption is 0.3 ~ 1.1% of a fatty acid methyl ester weight; Said fatty acid methyl ester is meant the fatty acid methyl ester of the sfas of C atomicity between 14 ~ 20 even number.
Fatty acid methyl ester described in the present invention is meant one or more the mixture in the saturated fatty acid methyl ester of lipid acid C atomicity between 14 ~ 20 even numbers.
Product of the present invention adopts column chromatography to measure diglyceride content wherein.
Beneficial effect of the present invention is following:
1, production technique is simple, operational safety;
2, water glass excellent catalytic effect obviously improves reaction efficiency;
3, the diglyceride content in the product is high;
4, reduced the cost of preparation triglyceride.
Embodiment
To combine embodiment to make further detailed description below the present invention:
Embodiment 1
Get 500g methyl stearate and 80g glycerine respectively, stirring makes it fully miscible, adds the 2.5g water glass again, to react centrifugal, filtering and removing water glass 2.5 hours at 220 ℃ under 200 rev/mins the stirring velocity; Adopt column chromatography to measure diglyceride content in the product.The quality percentage composition of each composition is following in the product: monoglyceride is 34.74%, and triglyceride is 49.70%, and sweet three esters are 14.15%, and free fatty acids is 1.23%.
Embodiment 2
Get 500g Uniphat A60 and 150g glycerine respectively, stirring makes it fully miscible, adds the 5g water glass again, gets under the stirring velocity at 220 ℃ of reactions 2 hours, centrifugal, filtering and removing water glass with 300 rev/mins; Adopt column chromatography to measure diglyceride content in the product.The quality percentage composition of each composition is following in the product: monoglyceride is 30.46%, and triglyceride is 42.75%, and triglyceride level is 25.64%, and free fatty acids is 1.15%.
Embodiment 3
Get 500g methyl stearate and Uniphat A60 etc. quality mixture and 100g glycerine, stirring makes it fully miscible, adds the 3.5g water glass again, with 300 rev/mins under the stirring velocity 200 ℃ of reactions 2 hours, centrifugal, filtering and removing water glass; Adopt column chromatography to measure diglyceride content in the product.The quality percentage composition of each composition is following in the product: triglyceride is 45.28%, and monoglyceride is 28.75%, and triglyceride level 24.90%, free fatty acids are 1.07%.
Embodiment 4
Get 500g myristic acid methyl esters and 90g glycerine respectively, stirring makes it fully miscible, adds the 2g water glass again, gets under the stirring velocity at 240 ℃ of reactions 1.5 hours, centrifugal, filtering and removing water glass with 300 rev/mins; Adopt column chromatography to measure diglyceride content in the product.The quality percentage composition of each composition is following in the product: triglyceride is 42.59%, and monoglyceride is 30.46%, and triglyceride level is 25.09%, and free fatty acids is 1.75%.
Claims (2)
1. the preparation method of a triglyceride is characterized in that: fatty acid methyl ester and glycerol mixture are reacted under the katalysis of solid catalyst water glass obtain triglyceride; Reaction times is 0.5 ~ 2.5 hour; The mol ratio of said fatty acid methyl ester and glycerine is 0.5:1 ~ 4:1; The water glass consumption is 0.3 ~ 1.1% of a fatty acid methyl ester weight; Said fatty acid methyl ester is meant the fatty acid methyl ester of the sfas of C atomicity between 14 ~ 20 even number.
2. preparation triglyceride method according to claim 1 is characterized in that: said fatty acid methyl ester is meant one or more the mixture in the saturated fatty acid methyl ester of lipid acid C atomicity between 14 ~ 20 even numbers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100014113A CN102531892A (en) | 2012-01-05 | 2012-01-05 | Method for preparing diacylglycerol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100014113A CN102531892A (en) | 2012-01-05 | 2012-01-05 | Method for preparing diacylglycerol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102531892A true CN102531892A (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100014113A Pending CN102531892A (en) | 2012-01-05 | 2012-01-05 | Method for preparing diacylglycerol |
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| CN (1) | CN102531892A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103445162A (en) * | 2013-08-21 | 2013-12-18 | 华南理工大学 | Pyruvoyl lauroyl glyceride and preparation method thereof |
| CN103497102A (en) * | 2013-09-30 | 2014-01-08 | 华南理工大学 | Pyruvoyl-based structured ester and preparation method thereof |
| CN104479883A (en) * | 2014-11-18 | 2015-04-01 | 青岛澳海生物有限公司 | Preparation method for fatty glyceride |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1438308A (en) * | 2003-03-06 | 2003-08-27 | 华南理工大学 | Method for producing diglyceride |
-
2012
- 2012-01-05 CN CN2012100014113A patent/CN102531892A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1438308A (en) * | 2003-03-06 | 2003-08-27 | 华南理工大学 | Method for producing diglyceride |
Non-Patent Citations (2)
| Title |
|---|
| 《管产学研助推食品安全重庆高峰论坛--2011年中国农业工程学会农产品加工及贮藏工程分会学术年会暨全国食品科学与工程博士生学术论坛论文集》 20110925 邵会等 硅酸钠催化制备甘二酯的工艺研究 第232-236页 1-2 , * |
| 邵会等: "硅酸钠催化制备甘二酯的工艺研究", 《管产学研助推食品安全重庆高峰论坛——2011年中国农业工程学会农产品加工及贮藏工程分会学术年会暨全国食品科学与工程博士生学术论坛论文集》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103445162A (en) * | 2013-08-21 | 2013-12-18 | 华南理工大学 | Pyruvoyl lauroyl glyceride and preparation method thereof |
| CN103445162B (en) * | 2013-08-21 | 2015-08-26 | 华南理工大学 | A kind of Pyruvoyl lauroyl glyceride and preparation method thereof |
| CN103497102A (en) * | 2013-09-30 | 2014-01-08 | 华南理工大学 | Pyruvoyl-based structured ester and preparation method thereof |
| CN104479883A (en) * | 2014-11-18 | 2015-04-01 | 青岛澳海生物有限公司 | Preparation method for fatty glyceride |
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Application publication date: 20120704 |