CN113512568A - Preparation method of linoleic acid-rich structural grease - Google Patents
Preparation method of linoleic acid-rich structural grease Download PDFInfo
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- CN113512568A CN113512568A CN202110792787.XA CN202110792787A CN113512568A CN 113512568 A CN113512568 A CN 113512568A CN 202110792787 A CN202110792787 A CN 202110792787A CN 113512568 A CN113512568 A CN 113512568A
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- linoleic acid
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- 239000004519 grease Substances 0.000 title claims abstract description 32
- 235000020778 linoleic acid Nutrition 0.000 title claims abstract description 26
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 title claims abstract description 26
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 36
- 239000005642 Oleic acid Substances 0.000 claims abstract description 28
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims abstract description 27
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims abstract description 27
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims abstract description 27
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims abstract description 27
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000002156 mixing Methods 0.000 claims abstract description 26
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 25
- 239000000194 fatty acid Substances 0.000 claims abstract description 25
- 229930195729 fatty acid Natural products 0.000 claims abstract description 25
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims abstract description 25
- 235000019485 Safflower oil Nutrition 0.000 claims abstract description 24
- 238000004821 distillation Methods 0.000 claims abstract description 24
- 235000005713 safflower oil Nutrition 0.000 claims abstract description 24
- 239000003813 safflower oil Substances 0.000 claims abstract description 24
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 23
- 239000002994 raw material Substances 0.000 claims abstract description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 12
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 claims abstract description 11
- UFTFJSFQGQCHQW-UHFFFAOYSA-N triformin Chemical compound O=COCC(OC=O)COC=O UFTFJSFQGQCHQW-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 102000004882 Lipase Human genes 0.000 claims abstract description 7
- 108090001060 Lipase Proteins 0.000 claims abstract description 7
- 239000004367 Lipase Substances 0.000 claims abstract description 7
- 235000019421 lipase Nutrition 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 102000004190 Enzymes Human genes 0.000 claims abstract description 3
- 108090000790 Enzymes Proteins 0.000 claims abstract description 3
- 125000003473 lipid group Chemical group 0.000 claims abstract 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 18
- 239000003921 oil Substances 0.000 claims description 13
- 235000019198 oils Nutrition 0.000 claims description 13
- 235000021314 Palmitic acid Nutrition 0.000 claims description 12
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 claims description 12
- 230000001877 deodorizing effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 235000021355 Stearic acid Nutrition 0.000 claims description 5
- 235000021588 free fatty acids Nutrition 0.000 claims description 5
- 238000000199 molecular distillation Methods 0.000 claims description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 5
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 5
- 239000008117 stearic acid Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 235000019197 fats Nutrition 0.000 description 7
- 235000020256 human milk Nutrition 0.000 description 7
- 210000004251 human milk Anatomy 0.000 description 7
- 229940040461 lipase Drugs 0.000 description 5
- 102000003820 Lipoxygenases Human genes 0.000 description 3
- 108090000128 Lipoxygenases Proteins 0.000 description 3
- 125000005457 triglyceride group Chemical group 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 2
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 201000001320 Atherosclerosis Diseases 0.000 description 1
- 206010053759 Growth retardation Diseases 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 102000019280 Pancreatic lipases Human genes 0.000 description 1
- 108050006759 Pancreatic lipases Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 235000012000 cholesterol Nutrition 0.000 description 1
- 235000020247 cow milk Nutrition 0.000 description 1
- 230000001079 digestive effect Effects 0.000 description 1
- IQLUYYHUNSSHIY-HZUMYPAESA-N eicosatetraenoic acid Chemical compound CCCCCCCCCCC\C=C\C=C\C=C\C=C\C(O)=O IQLUYYHUNSSHIY-HZUMYPAESA-N 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 229940088598 enzyme Drugs 0.000 description 1
- 235000004626 essential fatty acids Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000013350 formula milk Nutrition 0.000 description 1
- 231100000001 growth retardation Toxicity 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002632 lipids Chemical group 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 208000030159 metabolic disease Diseases 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000001328 optic nerve Anatomy 0.000 description 1
- 229940116369 pancreatic lipase Drugs 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000004671 saturated fatty acids Chemical class 0.000 description 1
- 208000017520 skin disease Diseases 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/64—Fats; Fatty oils; Ester-type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/64—Fats; Fatty oils; Ester-type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats
- C12P7/6409—Fatty acids
- C12P7/6427—Polyunsaturated fatty acids [PUFA], i.e. having two or more double bonds in their backbone
Abstract
The invention discloses a preparation method of a linoleic acid-rich structural grease, which comprises the following steps: mixing in step (1): safflower oil and oleic acid are used as raw materials, the safflower oil and the oleic acid are uniformly mixed, 1 percent of lipid exchange enzyme is added, a small amount of 0.1 percent of 10 percent sodium hydroxide solution is added to adjust the pH value, and the reaction is carried out for 2 hours; step (2), distillation and separation: putting the mixed liquid obtained in the step (1) into a distillation tower for distillation, and separating after distillation to obtain fatty acid; step (3), mixing reaction: mixing the fatty acid obtained in the step (2) and tripalmitoyl triglyceride (PPP) in a weight ratio of 3: 1, adding sodium hydroxide solution to adjust the pH value to 5.0-5.3, then adding 10% of Novoxil immobilized lipase, vacuumizing and introducing nitrogen until the pressure of the reactor is 0.01 MPa. The invention adopts safflower oil as the supply of linoleic acid raw material, has simple production process, reduces the production cost, increases the content of linoleic acid, and generates the structural grease with high content of OPL.
Description
Technical Field
The invention relates to the technical field of preparation of structural grease, in particular to a preparation method of structural grease rich in linoleic acid.
Background
Breast milk is the best natural food for infants, fat is taken as an important energy supply substance, although the fat only accounts for about 3-5% of breast milk, the fat provides more than 50% of energy for the infants, more than 98% of the breast milk fat is triglyceride, the main structure type of the triglyceride is sn-USU type, U represents unsaturated fatty acid, and S represents saturated fatty acid. The content of palmitic acid in breast milk is 20-30%, wherein about 70% of palmitic acid is in sn-2 position, sn-1, 3 position is mainly unsaturated fatty acid, typical triglyceride is sn-OPO and sn-OPL, wherein O represents oleic acid, L represents linoleic acid, the position of fatty acid on triglyceride can affect the digestive absorption, the palmitic acid of cow milk and common vegetable oil is mostly distributed in sn-1, 3 position of triglyceride, the palmitic acid in sn-1, 3 position can obtain free palmitic acid after being hydrolyzed by pancreatic lipase in vivo, and is easy to form high melting point soap with calcium and magnesium ions in vivo and discharge out of body, thus causing mineral and energy loss of infants, and about 70% of palmitic acid in breast milk fat is in sn-2 position of triglyceride and can be absorbed in form of sn-2 monoglyceride, the loss of palmitic acid and calcium is avoided, and a large number of documents report methods for preparing 1, 3-dioleoyl-2-palmitic acid (OPO), however, besides OPO, the content of OPL in breast milk is high, OPL is totally called 1, 3-oleic acid and linoleic acid-2-palmitic acid triglyceride, compared with OPO, oleic acid is partially replaced by linoleic acid, and the content of OPL in breast milk in some regions even exceeds the content of OPO. OPL contains linoleic acid, which is an essential fatty acid for human body, and has effects of reducing cholesterol and preventing atherosclerosis. Infants lack linoleic acid, and the permeability of the skin to water is increased, resulting in water metabolism disorder, skin disease, growth retardation, etc. The derivative of linoleic acid, namely eicosatetraenoic acid (AA), is also an important substance for the development of human brain and optic nerves, and has important effects on improving the intelligence and enhancing the visual acuity of infants, so that how to produce the oil rich in linoleic acid or OPL is very important.
In contrast, chinese patent with publication number CN109566769A discloses a method for preparing a grease composition rich in OPO and OPL, which comprises the steps of taking triglyceride and a fatty acid acyl donor as raw materials, adding lipase into a solvent system or a solvent-free system to react at 50-90 ℃, and purifying the obtained product to obtain a grease mixture rich in OPO and OPL; wherein the fatty acid acyl donor is a mixture of an oleic acid acyl donor and a linoleic acid acyl donor, and the molar ratio of the oleic acid acyl donor to the linoleic acid acyl donor is (1-5): 1.
The sum of the contents of OPO and OPL in the product obtained by the preparation method is more than 35 percent, and the preparation method is particularly suitable for infant formula milk powder, but the linoleic acid acyl donor is used as a raw material to provide linoleic acid, so that the cost is high, the production cost is increased, and the popularization and the use are not facilitated.
Therefore, a preparation method of the structural grease rich in linoleic acid is proposed to solve the problems.
Disclosure of Invention
The invention aims to provide a preparation method of a structural grease rich in linoleic acid, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of a linoleic acid-rich structural grease comprises the following steps:
mixing in step (1): safflower oil and oleic acid are used as raw materials, the safflower oil and the oleic acid are uniformly mixed, 1 percent of lipid exchange enzyme is added, a small amount of 0.1 percent of 10 percent sodium hydroxide solution is added to adjust the pH value, and the reaction is carried out for 2 hours;
step (2), distillation and separation: putting the mixed liquid obtained in the step (1) into a distillation tower for distillation, and separating after distillation to obtain fatty acid;
step (3), mixing reaction: mixing the fatty acid obtained in the step (2) and tripalmitoyl triglyceride (PPP) in a weight ratio of 3: 1, mixing, adding a sodium hydroxide solution to adjust the pH value to 5.0-5.3, adding 10% of Novoxil immobilized lipase, vacuumizing, introducing nitrogen until the pressure of 0.01MPa exists in a reactor, and reacting for 4 hours at the temperature of 60 ℃ to obtain a crude structured oil mixture;
and (4) decoloring and deodorizing: and (4) performing molecular distillation on the crude structured grease mixture obtained in the step (3), removing free fatty acid, and decoloring and deodorizing the residual grease mixture to obtain the structured grease.
Preferably, the fatty acid components of the safflower oil in the step (1) are linoleic acid 76%, oleic acid 14%, stearic acid 3% and palmitic acid 7%.
Preferably, the weight ratio of the safflower oil to the oleic acid in the step (1) is 1: 1.
preferably, the weight ratio of the safflower oil to the oleic acid in the step (1) is 2: 1.
preferably, the weight ratio of the safflower oil to the oleic acid in the step (1) is 5: 1.
compared with the prior art, the invention has the beneficial effects that:
the invention adopts safflower oil as the supply of linoleic acid raw material, has simple production process, reduces the production cost, increases the content of linoleic acid, and generates the structural grease with high content of OPL.
Drawings
FIG. 1 is a schematic view of the preparation process of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 1, the present invention provides a technical solution: a preparation method of a linoleic acid-rich structural grease comprises the following steps:
mixing in step (1): taking safflower oil and oleic acid as raw materials, and mixing the safflower oil and the oleic acid in a weight ratio of 1: 1 proportion, adding 1 percent of lipoxygenase, adding a small amount of 0.1 percent of 10 percent sodium hydroxide solution to adjust the pH value, and reacting for 2 hours;
step (2), distillation and separation: putting the mixed liquid obtained in the step (1) into a distillation tower for distillation, and separating after distillation to obtain fatty acid;
step (3), mixing reaction: mixing the fatty acid obtained in the step (2) and tripalmitoyl triglyceride (PPP) in a weight ratio of 3: 1, mixing, adding a sodium hydroxide solution to adjust the pH value to 5.0-5.3, adding 10% of Novoxil immobilized lipase, vacuumizing, introducing nitrogen until the pressure of 0.01MPa exists in a reactor, and reacting for 4 hours at the temperature of 60 ℃ to obtain a crude structured oil mixture;
and (4) decoloring and deodorizing: and (4) performing molecular distillation on the crude structured grease mixture obtained in the step (3), removing free fatty acid, and decoloring and deodorizing the residual grease mixture to obtain the structured grease.
Detecting the components of the fatty acid obtained in the step (2), wherein the detected fatty acid components are as follows: linoleic acid 38%, oleic acid 54%, palmitic acid 4%, stearic acid 2%, and others 2%;
and (4) measuring the content of OPL in the structured oil obtained in the step (4), wherein the content of OPL is measured to be 20%.
Example 2:
referring to fig. 1, the present invention provides a technical solution: a preparation method of a linoleic acid-rich structural grease comprises the following steps:
mixing in step (1): taking safflower oil and oleic acid as raw materials, and mixing the safflower oil and the oleic acid in a weight ratio of 2: 1 proportion, adding 1 percent of lipoxygenase, adding a small amount of 0.1 percent of 10 percent sodium hydroxide solution to adjust the pH value, and reacting for 2 hours;
step (2), distillation and separation: putting the mixed liquid obtained in the step (1) into a distillation tower for distillation, and separating after distillation to obtain fatty acid;
step (3), mixing reaction: mixing the fatty acid obtained in the step (2) and tripalmitoyl triglyceride (PPP) in a weight ratio of 3: 1, mixing, adding a sodium hydroxide solution to adjust the pH value to 5.0-5.3, adding 10% of Novoxil immobilized lipase, vacuumizing, introducing nitrogen until the pressure of 0.01MPa exists in a reactor, and reacting for 4 hours at the temperature of 60 ℃ to obtain a crude structured oil mixture;
and (4) decoloring and deodorizing: and (4) performing molecular distillation on the crude structured grease mixture obtained in the step (3), removing free fatty acid, and decoloring and deodorizing the residual grease mixture to obtain the structured grease.
Detecting the components of the fatty acid obtained in the step (2), wherein the detected fatty acid components are as follows: 51%, oleic acid 40%, palmitic acid 5%, stearic acid 3%, and others 1%;
and (3) measuring the content of OPL in the structured oil obtained in the step (4), wherein the content of OPL is 33%.
Example 3:
referring to fig. 1, the present invention provides a technical solution: a preparation method of a linoleic acid-rich structural grease comprises the following steps:
mixing in step (1): taking safflower oil and oleic acid as raw materials, and mixing the safflower oil and the oleic acid in a weight ratio of 5: 1 proportion, adding 1 percent of lipoxygenase, adding a small amount of 0.1 percent of 10 percent sodium hydroxide solution to adjust the pH value, and reacting for 2 hours;
step (2), distillation and separation: putting the mixed liquid obtained in the step (1) into a distillation tower for distillation, and separating after distillation to obtain fatty acid;
step (3), mixing reaction: mixing the fatty acid obtained in the step (2) and tripalmitoyl triglyceride (PPP) in a weight ratio of 3: 1, mixing, adding a sodium hydroxide solution to adjust the pH value to 5.0-5.3, adding 10% of Novoxil immobilized lipase, vacuumizing, introducing nitrogen until the pressure of 0.01MPa exists in a reactor, and reacting for 4 hours at the temperature of 60 ℃ to obtain a crude structured oil mixture;
and (4) decoloring and deodorizing: and (4) performing molecular distillation on the crude structured grease mixture obtained in the step (3), removing free fatty acid, and decoloring and deodorizing the residual grease mixture to obtain the structured grease.
Detecting the components of the fatty acid obtained in the step (2), wherein the detected fatty acid components are as follows: linoleic acid 51%, oleic acid 40%, palmitic acid 5%, stearic acid 3%, others 1%;
and (4) measuring the content of OPL in the structural oil obtained in the step (4), wherein the content of OPL is 45%.
The working principle is as follows: the invention provides linoleic acid by taking safflower oil as a raw material, the linoleic acid content in the produced fatty acid can reach 38-51 percent by implementation, and the fatty acid is taken as the raw material to produce the structural fat, and the OPL content in the structural fat can reach 33-45 percent; the invention adopts safflower oil as the supply of linoleic acid raw material, has simple production process, reduces the production cost, increases the content of linoleic acid, and generates the structural grease with high content of OPL.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A preparation method of a structure grease rich in linoleic acid is characterized by comprising the following steps:
mixing in step (1): safflower oil and oleic acid are used as raw materials, the safflower oil and the oleic acid are uniformly mixed, 1 percent of lipid exchange enzyme is added, a small amount of 0.1 percent of 10 percent sodium hydroxide solution is added to adjust the pH value, and the reaction is carried out for 2 hours;
step (2), distillation and separation: putting the mixed liquid obtained in the step (1) into a distillation tower for distillation, and separating after distillation to obtain fatty acid;
step (3), mixing reaction: mixing the fatty acid obtained in the step (2) and tripalmitoyl triglyceride (PPP) in a weight ratio of 3: 1, mixing, adding a sodium hydroxide solution to adjust the pH value to 5.0-5.3, adding 10% of Novoxil immobilized lipase, vacuumizing, introducing nitrogen until the pressure of 0.01MPa exists in a reactor, and reacting for 4 hours at the temperature of 60 ℃ to obtain a crude structured oil mixture;
and (4) decoloring and deodorizing: and (4) performing molecular distillation on the crude structured grease mixture obtained in the step (3), removing free fatty acid, and decoloring and deodorizing the residual grease mixture to obtain the structured grease.
2. The method for preparing the linoleic acid-rich structured oil according to claim 1, wherein the method comprises the following steps: the fatty acid components of the safflower oil in the step (1) comprise 76% of linoleic acid, 14% of oleic acid, 3% of stearic acid and 7% of palmitic acid.
3. The method for preparing the linoleic acid-rich structured oil according to claim 1, wherein the method comprises the following steps: in the step (1), the weight ratio of the safflower oil to the oleic acid is 1: 1.
4. the method for preparing the linoleic acid-rich structured oil according to claim 1, wherein the method comprises the following steps: the weight ratio of the safflower oil to the oleic acid in the step (1) is 2: 1.
5. the method for preparing the linoleic acid-rich structured oil according to claim 1, wherein the method comprises the following steps: the weight ratio of the safflower oil to the oleic acid in the step (1) is 5: 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110792787.XA CN113512568A (en) | 2021-07-14 | 2021-07-14 | Preparation method of linoleic acid-rich structural grease |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116287036A (en) * | 2023-03-21 | 2023-06-23 | 安徽森那贝生物科技有限公司 | Method for producing 1, 3-dioleoyl 2-palmitoyl glycerol |
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2021
- 2021-07-14 CN CN202110792787.XA patent/CN113512568A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116287036A (en) * | 2023-03-21 | 2023-06-23 | 安徽森那贝生物科技有限公司 | Method for producing 1, 3-dioleoyl 2-palmitoyl glycerol |
| CN116287036B (en) * | 2023-03-21 | 2023-10-20 | 安徽森那贝生物科技有限公司 | Method for producing 1, 3-dioleoyl 2-palmitoyl glycerol |
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