JP6196168B2 - Inhibitor of crystal growth of lauric oil - Google Patents

Description

  The present invention relates to a crystal growth inhibitor for lauric fats and oils.

  Laurin-based fats and oils containing lauric acid having 12 carbon atoms as a main constituent fatty acid, such as coconut oil and palm kernel oil, have a good melt with a cold feeling and a light white flavor, such as chocolate and ice cream. It is used in various fat-containing foods such as frozen confectionery, margarine / shortening plastic oil and fat compositions, foaming creams, liquid white or powdered dairy products such as coffee whitener and adjusted milk, and oil and fat compositions.

  However, lauric fats and oils are particularly prone to grow crystals at low temperatures, and fat-containing foods using lauric fats and oils may deteriorate in quality due to the crystal growth. For example, it is known that a coffee whitener using lauric fats and oils becomes unstable in emulsified state during refrigerated storage.

  In order to solve such problems, in the technical field of coffee whiteners using lauric fats and oils, a method using a fractionated liquid part of lauric fats and oils for improving emulsification stability (Patent Document 1), lauric fats and liquids Methods for using oils and fats together (Patent Documents 2 and 3) have been proposed.

  However, the coffee whitener according to the above method cannot obtain a sufficient viscosity, has a poor cream feeling, and has poor dispersibility when added to coffee. Moreover, the above method is assumed to be used in a specific technical field such as a coffee whitener, and is not applicable to all fat-containing foods using lauric fats and oils.

  Therefore, if the crystal growth of lauric fats and oils is directly suppressed, it is considered that undesired phenomena due to the crystal growth of lauric fats and oils can be suppressed in various forms of fat and oil-containing foods made from lauric fats and oils. Therefore, there is a strong demand for a crystal growth inhibitor that can suppress the crystal growth when added to lauric oils.

JP 2005-204653 A Japanese Patent Laid-Open No. 07-079698 Japanese Patent No. 4003804

  An object of this invention is to provide the crystal growth inhibitor which can suppress the crystal growth by adding to a lauric oil and fat.

  As a result of intensive studies on the above problems, the present inventor has found that the above problems can be solved by sorbitan fatty acid esters characterized by fatty acid composition and esterification rate, and the present invention is made based on this finding. It came to.

That is, the present invention comprises the following (1) and (2).
(1) A crystal growth inhibitor for lauric fats and oils characterized in that a sorbitan fatty acid ester satisfying the following conditions (A) and (B) is an active ingredient.
(A): The fatty acid content of 10 to 14 carbon atoms in the constituent fatty acid is 45% or more;
(B): The esterification rate is 35 to 85%.
(2) A lauric oil / fat composition comprising the crystal growth inhibitor according to (1).

  In the lauric oil / fat composition to which the crystal growth inhibitor of the present invention is added, crystal growth is suppressed.

FIG. 1 is an optical micrograph (magnification 500 times) showing the state of crystals produced in the lauric oil composition to which the crystal growth inhibitor (prototype F) of the example was added. FIG. 2 is an optical micrograph (magnification 500 times) showing the state of crystals produced in a lauric oil composition to which a crystal growth inhibitor (prototype H) of a comparative example was added. FIG. 3 is an optical micrograph (magnification 500 times) showing the state of crystals produced in the lauric oil composition to which the crystal growth inhibitor (prototype L) of the comparative example was added.

  The sorbitan fatty acid ester used in the present invention satisfies the following conditions (A) and (B).

[Condition (A)]
The sorbitan fatty acid ester used in the present invention has a fatty acid content of 10 to 14 carbon atoms (preferably a saturated fatty acid) in 100% constituent fatty acids of 45% or more, preferably 50% or more, more preferably 60% or more. is there. If the content of the fatty acid having 10 to 14 carbon atoms is less than 45%, the effect of suppressing the crystal growth of lauric fats and oils cannot be sufficiently obtained, which is not preferable. Examples of the fatty acid having 10 to 14 carbon atoms include capric acid (10 carbon atoms), lauric acid (12 carbon atoms), and myristic acid (14 carbon atoms), and lauric acid is preferable.

Here, the content of the constituent fatty acid in the condition (A) refers to the content in 100% of the fatty acid used as a raw material for producing the sorbitan fatty acid ester, and this content is the following process for the produced sorbitan fatty acid ester: You may measure by implementing (1)-(3).
(1) Preparation of sample In “2.4.1.2-1996 methyl esterification method (boron trifluoride methanol method)” of “Standard oil analysis test method (I)” (edited by the Japan Oil Chemists' Society). Prepare a sample according to the procedure.
(2) Measuring method Measured according to [2.4.2.2-1996 Fatty acid composition (FID temperature rising gas chromatograph method)] of "Standard oil analysis test method (I)" (edited by the Japan Oil Chemists' Society). To do.
(3) Quantification The percentage of each peak area with respect to the total peak area recorded by the data processing apparatus is taken as the content of constituent fatty acids.

[Condition (B)]
The esterification rate of the sorbitan fatty acid ester used in the present invention is 35 to 85%, more preferably 50 to 80%. If the esterification rate is less than 35%, the effect of suppressing the shrinkage of lauric fats and oils cannot be sufficiently obtained, which is not preferable. In addition, sorbitan fatty acid esters having an esterification rate exceeding 85% have problems such as a significant increase in reaction time and coloring of the obtained sorbitan fatty acid esters, so that they are industrially produced or sold commercially. Since it is difficult to obtain a commercial product, it is not preferable.

  Here, the esterification rate (%) is calculated by the following formula. In addition, the ester value and the hydroxyl value in the following formula are shown in [2.3.3-1996 Ester Value] and [2.3. 6-1996 hydroxyl number].

  Examples of sorbitol used as a raw material for the sorbitan fatty acid ester used in the present invention include D-sorbitol liquid containing 50.0 to 70.0% by mass of D-sorbitol, white powder, or granular D-sorbitol. .

  As the fatty acid used as a raw material for the sorbitan fatty acid ester used in the present invention, those satisfying the above condition (A) are preferably used.

  In the production (esterification reaction) of the sorbitan fatty acid ester used in the present invention, the amount of fatty acid charged relative to sorbitol is preferably about 1.4 to 3.5 mol per mol of sorbitol.

  The production method of the sorbitan fatty acid ester used in the present invention is not particularly limited. For example, the esterification reaction between sorbitol and a fatty acid may be performed without a catalyst, or may be performed using an acid catalyst or an alkali catalyst. It is preferably carried out in the presence of a catalyst. Examples of the acid catalyst include concentrated sulfuric acid and p-toluenesulfonic acid. Examples of the alkali catalyst include potassium hydroxide, sodium hydroxide, potassium carbonate, sodium carbonate and the like. The usage-amount of an alkali catalyst is 0.01-1.0 mass% of the total preparation amount (dry matter conversion), Preferably it is 0.05-0.5 mass%.

  Although it does not specifically limit as a manufacturing apparatus used for the said manufacture, For example, the said esterification reaction was equipped with the water separator with a stirrer, the jacket for a heating, a baffle plate, an inert gas blowing tube, a thermometer, a cooler, etc., for example. While supplying sorbitol, a fatty acid, and a catalyst to a normal reaction vessel and stirring and mixing, under any inert gas atmosphere such as nitrogen or carbon dioxide, water generated by the esterification reaction is removed from the system, It is performed by heating at a predetermined temperature for a certain time. The reaction temperature is usually in the range of 180 to 260 ° C, preferably in the range of 200 to 250 ° C. The reaction pressure conditions are reduced pressure or normal pressure, and the reaction time is 0.5 to 15 hours, preferably 1 to 4 hours. The end point of the reaction is usually determined by measuring the acid value of the reaction mixture and taking 10 or less as a guide.

  When a catalyst is used after completion of the esterification reaction, the catalyst remaining in the reaction mixture may be neutralized. In that case, when the temperature of esterification reaction is 200 degreeC or more, it is preferable to neutralize after cooling liquid temperature to 180-200 degreeC. Moreover, when reaction temperature is 200 degrees C or less, you may neutralize at the same temperature. After neutralization, it is allowed to stand at that temperature for preferably 0.5 hours or more, more preferably 1 to 10 hours. When unreacted sorbitol or sorbitol intramolecular condensate is separated into the lower layer, it is preferably removed.

  In the present invention, the lauric fats and oils refer to fats and oils having a saturated fatty acid content of 12 or more carbon atoms in the constituent fatty acid composition of the fats and oils, specifically coconut oil, palm kernel oil, and these fats and oils. And fats and oils subjected to one or more physical or chemical treatments such as hydrogenation, fractionation, and transesterification. In the present invention, these fats and oils may be used alone or in combination of two or more.

  The crystal growth inhibitor (hereinafter also simply referred to as “crystal growth inhibitor”) of the lauric fat according to the present invention comprises a sorbitan fatty acid ester satisfying the above conditions (A) and (B) as an active ingredient. The crystal growth inhibitor of the present invention may be used by adding a sorbitan fatty acid ester that satisfies the above conditions (A) and (B) as it is to a lauric oil or fat, or a preparation containing the sorbitan fatty acid ester is prepared, You may add this to a lauric oil and fat as a crystal growth inhibitor. Although there is no restriction | limiting in particular in the addition method, For example, it can carry out easily by adding the crystal growth inhibitor of this invention to a lauric oil and fat, heating this to about 60-120 degreeC, and carrying out mixing dissolution.

  The lauric oil / fat composition of the present invention is a lauric oil / fat to which the crystal growth inhibitor of the present invention is added and an oil / fat composition produced from the lauric oil / fat as a raw material. Specifically, in addition to an oil composition obtained by directly adding the crystal growth inhibitor of the present invention to a lauric oil, an edible oil composition produced using the oil composition as a raw material is exemplified. Examples of the fat composition include chocolates, whipped cream fat composition (foamable oil-in-water emulsified composition), sand cream fat composition, frozen confectionery fat composition, confectionery or bread coating fat. Examples thereof include a plastic oil composition such as a composition, margarine, fat spread or shortening, and a liquid or powdered dairy product or oil composition such as coffee whitener or adjusted milk. There is no restriction | limiting in particular in the manufacturing method of these edible oil-fat compositions, These can be manufactured by a conventional method using a conventional apparatus.

  The content of the sorbitan fatty acid ester in the lauric oil / fat composition of the present invention depends on the form of the oil / fat composition, the content of the lauric oil / fat in the oil / fat composition, the degree of the intended crystal growth inhibiting effect, and the like. Although it is different and not uniform, for example, it is usually 0.1 to 2.0 parts by weight, preferably 0.2 to 1.2 parts by weight with respect to 100 parts by weight of lauric fats and oils contained in the fat composition Can be adjusted as follows.

  Hereinafter, the present invention will be specifically described with reference to examples, but the present invention is not limited thereto.

[Production Example 1]
428 g of sorbitol was charged into a 2 L four-necked flask equipped with a stirrer, thermometer, gas blowing tube and water separator, and then lauric acid L-98 (trade name; fatty acid composition: 98% lauric acid, myristic acid 20.5; 330.5 g, manufactured by Maruzen Pharmaceutical Industry Co., Ltd., stearic acid 65 (trade name; stearic acid content 65%; palmitic acid content 35%; manufactured by Miyoshi Oil & Fats Co., Ltd.) 264.4 g and behenic acid 85 (trade name; Behenic acid content 90%; arachidic acid content 8%; stearic acid content 2%; made by Miyoshi Oil & Fats Co., Ltd.) 66.1 g, sodium hydroxide 1.38 g was added as a catalyst, and under normal pressure in a nitrogen gas stream The esterification reaction was carried out at 235 ° C. until the acid value became 10 or less for about 1.5 hours. The obtained reaction product was cooled to obtain about 850 g of sorbitan fatty acid ester (prototype A; esterification rate: 35%).

[Production Example 2]
A 2 L four-necked flask equipped with a stirrer, thermometer, gas blowing tube and water separator was charged with 367 g of sorbitol, then lauric acid L-98 (trade name; fatty acid composition: lauric acid 98%, myristic acid 26.0; Maruzen Pharmaceutical Industry Co., Ltd.) 446.0 g, stearic acid 65 (trade name; stearic acid content 65%; palmitic acid content 35%; Miyoshi Oil & Fats Co., Ltd.) 356.8 g and behenic acid 85 (trade name; Behenic acid content 90%; arachidic acid content 8%; stearic acid content 2%; manufactured by Miyoshi Oil & Fats Co., Ltd.) 89.2 g, sodium hydroxide 0.58 g was added as a catalyst, and under normal pressure in a nitrogen gas stream The esterification reaction was carried out at 235 ° C. for about 3.0 hours until the acid value became 10 or less. The obtained reaction product was cooled to obtain about 1070 g of sorbitan fatty acid ester (prototype B; esterification rate 60%).

[Production Example 3]
A 2 L four-necked flask equipped with a stirrer, thermometer, gas blowing tube and water separator was charged with 342 g of sorbitol, then lauric acid L-98 (trade name; fatty acid composition: lauric acid 98%, myristic acid 23.3% (made by Maruzen Pharmaceutical Industry Co., Ltd.) 543.3 g, stearic acid 65 (trade name; stearic acid content 65%; palmitic acid content 35%; manufactured by Miyoshi Oil & Fats Co., Ltd.) 434.6 g and behenic acid 85 (trade name; 108.7 g of behenic acid content 90%; arachidic acid content 8%; stearic acid content 2%; manufactured by Miyoshi Oil & Fats Co., Ltd.), 0.54 g of sodium hydroxide as a catalyst, and nitrogen gas stream under normal pressure The esterification reaction was carried out at 235 ° C. for about 4 hours until the acid value became 10 or less. The obtained reaction product was cooled to obtain about 1210 g of sorbitan fatty acid ester (prototype C; esterification rate 80%).

[Production Example 4]
A 2 L four-necked flask equipped with a stirrer, thermometer, gas blowing tube and water separator was charged with 361 g of sorbitol, then lauric acid L-98 (trade name; fatty acid composition: lauric acid 98%, myristic acid 2%; made by Maruzen Pharmaceutical Industry Co., Ltd.) 740.7g and stearic acid 65 (trade name; stearic acid content 65%; palmitic acid content 35%; made by Miyoshi Yushi Co., Ltd.) 185.2g, sodium hydroxide as catalyst 0.59 g was added, and the esterification reaction was performed for about 4.0 hours under normal pressure in a nitrogen gas stream at 235 ° C. until the acid value became 10 or less. The obtained reaction product was cooled to obtain about 1090 g of sorbitan fatty acid ester (prototype D; esterification rate 75%).

[Production Example 5]
458 g of sorbitol was charged into a 2 L four-necked flask equipped with a stirrer, thermometer, gas blowing tube and water separator, and then lauric acid L-98 (trade name; fatty acid composition: 98% lauric acid, myristic acid 21.1; manufactured by Maruzen Pharmaceutical Industry Co., Ltd.) 571.1 g, behenic acid 85 (trade name; behenic acid content 90%; arachidic acid content 8%; stearic acid content 2%; manufactured by Miyoshi Oil & Fats Co., Ltd.) 30.0 g First, 1.29 g of sodium hydroxide was added as a catalyst, and an esterification reaction was carried out under normal pressure in a nitrogen gas stream at 235 ° C. until the acid value became 10 or less for about 1.5 hours. The obtained reaction product was cooled to obtain about 825 g of sorbitan fatty acid ester (prototype E; esterification rate: 35%).

[Production Example 6]
409 g of sorbitol was charged into a 2 L four-necked flask equipped with a stirrer, thermometer, gas blowing tube and water separator, and then lauric acid L-98 (trade name; fatty acid composition: 98% lauric acid, myristic acid 29.1%, manufactured by Maruzen Pharmaceutical Industry Co., Ltd.) 679.1 g, behenic acid 85 (trade name; behenic acid content 90%; arachidic acid content 8%; stearic acid content 2%; manufactured by Miyoshi Oil & Fats Co., Ltd.) 35.7 g First, 1.45 g of sodium hydroxide was added as a catalyst, and an esterification reaction was performed for about 1.5 hours at 235 ° C. under an atmospheric pressure under a nitrogen gas stream until the acid value became 10 or less. The obtained reaction product was cooled to obtain about 890 g of sorbitan fatty acid ester (prototype F; esterification rate: 45%).

[Production Example 7]
A 2 L four-necked flask equipped with a stirrer, thermometer, gas blowing tube and water separator was charged with 356 g of sorbitol, then lauric acid L-98 (trade name; fatty acid composition: 98% lauric acid, myristic acid 91% of 2%; manufactured by Maruzen Pharmaceutical Industry Co., Ltd.) and 48.1 g of behenic acid 85 (trade name; 90% behenic acid content; 8% arachidic acid content; 2% stearic acid content; manufactured by Miyoshi Oil & Fats Co., Ltd.) Then, 0.61 g of sodium hydroxide was added as a catalyst, and an esterification reaction was carried out in a nitrogen gas stream under normal pressure at 235 ° C. until the acid value became 10 or less for about 4.0 hours. The obtained reaction product was cooled to obtain about 1120 g of sorbitan fatty acid ester (prototype G; esterification rate 80%).

[Production Example 8]
A 2 L four-necked flask equipped with a stirrer, thermometer, gas blowing tube and water separator was charged with 347 g of sorbitol, and then stearic acid 65 (trade name; stearic acid content 65%; palmitic acid content 35 %; Made by Miyoshi Oil & Fats Co., Ltd.) 1035.4g, 0.65g of sodium hydroxide was added as a catalyst, and the esterification reaction took about 3.0 hours under normal pressure in a nitrogen gas stream at 235 ° C until the acid value was 10 or less. Went. The obtained reaction product was cooled to obtain about 1140 g of sorbitan fatty acid ester (prototype H; esterification rate 65%).

[Production Example 9]
A 2 L four-necked flask equipped with a stirrer, thermometer, gas blowing tube and water separator was charged with 355 g of sorbitol, then lauric acid L-98 (trade name; fatty acid composition: 98% lauric acid, myristic acid 2%; manufactured by Maruzen Pharmaceutical Industry Co., Ltd.) 126.6 g, stearic acid 65 (trade name; stearic acid content 65%; palmitic acid content 35%; manufactured by Miyoshi Oil & Fats Co., Ltd.) 682.0 g and behenic acid 85 (trade name; Behenic acid content 90%; arachidic acid content 8%; stearic acid content 2%; manufactured by Miyoshi Oil & Fats Co., Ltd.) 165.6 g, 0.62 g sodium hydroxide as a catalyst, and nitrogen gas stream under normal pressure The esterification reaction was carried out at 235 ° C. for about 3.0 hours until the acid value became 10 or less. The obtained reaction product was cooled to obtain about 1130 g of sorbitan fatty acid ester (prototype I; esterification rate 60%).

[Production Example 10]
A 2 L four-necked flask equipped with a stirrer, thermometer, gas blowing tube and water separator was charged with 443 g of sorbitol, then lauric acid L-98 (trade name; fatty acid composition: lauric acid 98%, myristic acid 28.6; Maruzen Pharmaceutical Co., Ltd.) 188.6 g, stearic acid 65 (trade name; stearic acid content 65%; palmitic acid content 35%; manufactured by Miyoshi Oil & Fats Co., Ltd.) 377.3 g and behenic acid 85 (trade name; Behenic acid content 90%; arachidic acid content 8%; stearic acid content 2%; manufactured by Miyoshi Oil & Fats Co., Ltd.) 62.9g, sodium hydroxide 1.33g was added as a catalyst, and under normal pressure in a nitrogen gas stream The esterification reaction was carried out at 235 ° C. until the acid value became 10 or less for about 1.5 hours. The obtained reaction product was cooled to obtain about 830 g of sorbitan fatty acid ester (prototype J; esterification rate 30%).

[Production Example 11]
A 2 L four-necked flask equipped with a stirrer, thermometer, gas blowing tube and water separator was charged with 337 g of sorbitol, and then lauric acid L-98 (trade name; fatty acid composition: lauric acid 98%, myristic acid. 34% by Maruzen Pharmaceutical Industries Co., Ltd.) and stearic acid 65 (trade name; stearic acid content 65%; palmitic acid content 35%; manufactured by Miyoshi Oil & Fats Co., Ltd.) 682.1 g and behenic acid 85 (trade name; Behenic acid content 90%; arachidic acid content 8%; stearic acid content 2%; manufactured by Miyoshi Oil & Fats Co., Ltd.) 113.7 g, 0.70 g of sodium hydroxide as a catalyst, and nitrogen gas stream under normal pressure The esterification reaction was performed for about 4.0 hours at 235 ° C. until the acid value was 10 or less. The obtained reaction product was cooled to obtain about 1250 g of sorbitan fatty acid ester (prototype K; esterification rate 80%).

[Production Example 12]
A 2 L four-necked flask equipped with a stirrer, thermometer, gas blowing tube and water separator was charged with 550 g of sorbitol, and then lauric acid L-98 (trade name; fatty acid composition: 98% lauric acid, myristic acid 25.6% (made by Maruzen Pharmaceutical Industry Co., Ltd.) 295.6 g, stearic acid 65 (trade name; stearic acid content 65%; palmitic acid content 35%; made by Miyoshi Oil & Fats) 172.4 g and behenic acid 85 (trade name; Behenic acid content 90%; arachidic acid content 8%; stearic acid content 2%; manufactured by Miyoshi Oil & Fats Co., Ltd.) 24.6g, sodium hydroxide 1.13g was added as a catalyst, and nitrogen gas stream under normal pressure The esterification reaction was carried out at 235 ° C. until the acid value became 10 or less for about 1.5 hours. The obtained reaction product was cooled to obtain about 800 g of sorbitan fatty acid ester (prototype L; esterification rate: 23%).

[Production Example 13]
492 g of sorbitol was charged into a 2 L four-necked flask equipped with a stirrer, thermometer, gas blowing tube and water separator, and then lauric acid L-98 (trade name; fatty acid composition: lauric acid 98%, myristic acid 23.7% (made by Maruzen Pharmaceutical Industry Co., Ltd.) 523.7 g and stearic acid 65 (trade name; stearic acid content 65%; palmitic acid content 35%; manufactured by Miyoshi Oil & Fats Co., Ltd.) 27.6 g, sodium hydroxide as a catalyst 1.22 g was added, and the esterification reaction was carried out under normal pressure in a nitrogen gas stream at 235 ° C. until the acid value became 10 or less for about 1.5 hours. The obtained reaction product was cooled to obtain about 810 g of sorbitan fatty acid ester (prototype M; esterification rate 30%).

  Here, in 100% of the constituent fatty acids of the sorbitan fatty acid esters (prototypes A to M) produced in Production Examples 1 to 13, the content of fatty acids having 10 to 14 carbon atoms, 16 to 18 carbon atoms, and 20 to 22 carbon atoms ( %) And their esterification rates are shown in Table 1.

  In addition, among sorbitan fatty acid esters shown in Table 1, prototypes A to G (Production Examples 1 to 7) are examples according to the present invention, and prototypes H to M (Production Examples 8 to 13) are It is a comparative example for these.

[Test example]
[Crystal growth inhibition test of lauric fats and oils]
Sorbitan fatty acid esters (prototypes) obtained in Production Examples 1 to 13 to a blended oil consisting of 50 g of hydrogenated palm oil (trade name: hydrogenated palm oil; manufactured by Fuji Oil Co., Ltd.) and 50 g of canola oil (Nisshin Oilio Group) A to M) 0.5 g of each was added as a crystal growth inhibitor, and this was heated to 80 ° C. and mixed and dissolved to prepare a lauric oil composition. An appropriate amount of the obtained oil / fat composition was sampled on a cover glass, and another cover glass was placed thereon to sandwich the oil / fat composition. Next, the oil and fat composition was heated to 60 ° C. at a rate of 10 ° C./min using a microscope heating / cooling stage (manufactured by LINKAM), held for 3 minutes, and then 20 ° C. at a rate of 10 ° C./min. Until cooled. Subsequently, the oil and fat composition was stored in a thermostat set to 20 ° C. for 2 weeks, and its crystal state was observed with a polarizing microscope (manufactured by NIKON) and symbolized according to the following evaluation criteria. In addition, as a control, a test without addition of a crystal growth inhibitor was similarly tested. The results are shown in Table 2.
○: Most crystals having a size of 10 μm or less Δ: Crystals having a size of more than half of 10 to 20 μm ×: Most crystals having a size of 20 μm or more

  As is clear from the results in Table 2, the lauric oil / fat composition to which the crystal growth inhibitor of the present invention (prototypes A to G) was added had crystal growth sufficiently suppressed. On the other hand, comparatively large crystals are seen in the lauric fat composition and the control lauric fat composition to which the crystal growth inhibitor of the comparative example (prototypes H to M) is added, and compared with that of the present invention. It was inferior.

Claims (2)

Sorbitan fatty acid ester satisfying the following conditions (A) and (B) (however, the content of the saturated fatty acid having 16 to 18 carbon atoms and the saturated fatty acid having 20 to 22 carbon atoms in the constituent fatty acid is 10%) ) , A crystal growth inhibitor for lauric oils and fats.
(A): The fatty acid content of 10 to 14 carbon atoms in the constituent fatty acid is 80 % or more;
(B): The esterification rate is 35 to 85%.   A lauric oil composition comprising the crystal growth inhibitor according to claim 1.

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