JP7724646B2 - Oily composition and plastic oil composition containing said oily composition - Google Patents

Description

The present invention relates to a plastic oil composition that has the effect of reducing oil-off, and an oil-based composition contained in the plastic oil composition.

Plastic fat compositions such as margarine and fat spreads are usually stored refrigerated, but may be temporarily exposed to room temperature when purchased and brought home from the store or when used at home.

Because the raw materials for plastic oil and fat compositions contain oils and fats with melting points lower than room temperature, when exposed to room temperature, a phenomenon known as oil-off (separation of fat), in which a visible liquid substance appears on the surface of the solid plastic oil and fat composition, can occur. For this reason, it is required for the quality of plastic oil and fat compositions that oil-off does not occur even in an atmosphere with a temperature higher than the melting point of some of the oils and fats used as raw materials.

Traditionally, plastic fat compositions have used partially hydrogenated fats obtained by hydrogenating animal or vegetable fats. Partially hydrogenated fats are solid or semi-solid fats whose melting point is increased by adding hydrogen to the carbon-carbon double bonds in the unsaturated fatty acid residues of the fat, thereby reducing the number of double bonds and increasing the proportion of saturated fatty acid residues.

During the production process of partially hydrogenated oils and fats, trans isomers (hereinafter referred to as trans fatty acids) are produced from unsaturated fatty acid residues. Oils and fats having trans fatty acids as the fatty acid residue generally have a higher melting point than oils and fats having cis-ligands as the fatty acid residue, and are known to maintain the β'-type crystalline polymorphism.
Partially hydrogenated oils containing saturated fatty acid residues and trans fatty acid residues can be freely adjusted in melting point by varying the degree of hydrogenation, and partial liquefaction at high temperatures or room temperature can be reduced, so they are widely used in margarine, fat spreads, shortening, etc.

On the other hand, in recent years, there has been concern about the health hazards posed by the consumption of oils containing trans fatty acid residues. Excessive intake of oils containing trans fatty acid residues is a risk factor for coronary heart disease such as myocardial infarction, so many countries have imposed regulations on the labeling of trans fatty acids and restrictions on the use of partially hydrogenated oils containing a large amount of trans fatty acid residues.
In the United States, the Food and Drug Administration decided to remove partially hydrogenated oils from the list of generally recognized as safe (GRAS) products in June 2015. Although there are no legal restrictions in Japan, the importance of labeling products is being discussed in light of growing health consciousness and regulations overseas.
It has also been pointed out that excessive intake of saturated fatty acid residues in fats and oils increases the risk of coronary heart disease.

Thus, while partially hydrogenated oils and fats can impart desired physical properties to plastic oil and fat compositions, they have also been linked to health hazards. Therefore, efforts are being made to impart desired physical properties to plastic oil and fat compositions by using alternative ingredients to partially hydrogenated oils and fats, while reducing the trans fatty acid residues, or trans fatty acid residues and saturated fatty acid residues, in the oil and fat.

Patent Document 1 discloses a plastic oil and fat composition that contains behenic acid and has a triglyceride blending ratio within a specific range, thereby achieving good shape retention, meltability in the mouth, appearance, and plasticity even when the contents of trans fatty acids and lauric acid are low.
Patent Document 2 discloses a plastic oil and fat composition containing a triglyceride having one or more behenic acid residues and at least one of a palmitic acid-linked monoglyceride fatty acid ester and a stearic acid-linked monoglyceride fatty acid ester, thereby reducing saturated fatty acids and trans fatty acids.
Patent Document 3 discloses an oil and fat composition that contains 3 to 50% of a high-melting-point oil and fat containing 5% or more of saturated fatty acids of C20 or higher as constituent fatty acids, and that contains 35% or less of saturated fatty acids in the total oil and fat, and is substantially free of trans fatty acids.
Patent Document 4 discloses a fat composition suitable for healthy margarine or spread, which contains a triglyceride containing three monounsaturated or polyunsaturated fatty acids having at least 18 carbon atoms and a triglyceride containing three saturated fatty acids having 16-24 carbon atoms.

JP 2016-189773 A JP 2018-88863 A Japanese Patent Application Laid-Open No. 2001-139983 Patent No. 3065102

However, the oil and fat composition of Patent Document 1 reduces trans fatty acids in the oil and fat, but does not mention reducing saturated fatty acids. Also, Patent Documents 2 and 3 reduce trans fatty acids and saturated fatty acids in the oil and fat, but Patent Document 2 uses saturated fatty acid-linked monoglycerides, and Patent Document 3 uses high-melting-point oil and fat containing 5% or more of saturated fatty acids of C20 or higher, so there is a limit to the amount of these materials that can be added when aiming to reduce saturated fatty acids.
Patent Document 4 describes a method for providing a spread fat (where S is a saturated fatty acid having 16-24 carbon atoms, and U is a monounsaturated or polyunsaturated fatty acid having at least 18 carbon atoms) containing 5-95% by mass UUU and 0-8% by weight SSS, and the SFC value of the composition at 5°C is 6.5% or more.
As described above, a plastic oil and fat composition that contains a monounsaturated fatty acid-linked triglyceride having 20 or more carbon atoms and an unsaturated fatty acid-linked monoglyceride, thereby exhibiting little oil-off and a low SFC value at 5 to 40°C, and a simple method for producing the same have not been disclosed.

Based on the above, the objective of this study is to provide a plastic oil and fat composition that can reduce oil-off while reducing the saturated fatty acid and trans fatty acid content of the oils and fats used as raw materials for the plastic oil and fat composition, and a method for producing the oil-based composition contained in the plastic oil and fat composition.

In order to solve the above-mentioned problems, the present inventors have studied the cause of oil-off occurring when both trans fatty acid residues and saturated fatty acid residues in a plastic oil composition are reduced, and have concluded that one of the reasons for this is as follows.
That is, fats and oils containing fewer trans fatty acid residues and saturated fatty acid residues have a higher proportion of fats and oils containing many unsaturated fatty acid residues with low melting points. In a plastic fat and oil composition made from fats and oils of this composition, fats and oils containing saturated fatty acid residues and trans fatty acid residues are preferentially crystallized during the cooling process during production, and fats and oils containing many unsaturated fatty acid residues other than trans fatty acid residues are solidified in a state where they are all embraced by fats and oils containing saturated fatty acid residues and trans fatty acid residues. Furthermore, thereafter, during the storage of the plastic fat and oil composition in a cooled state, the fats and oils containing saturated fatty acid residues and trans fatty acid residues converge. When such a plastic fat and oil composition is exposed to an atmosphere at a temperature higher than the melting point of the fats and oils containing many unsaturated fatty acid residues other than trans fatty acid residues, the embraced fats and oils containing many unsaturated fatty acid residues other than trans fatty acid residues are liquefied and separated, which is thought to result in oil-off.
As a result of further research based on the above findings, the present inventors have found that an oily composition containing a plastic oil composition having an oil-off reducing effect can be obtained by adjusting the composition of the oily composition to a specific range.
<1>
An oily composition comprising at least two of the following (a), (b), and (c):
(a) Triglycerides containing one or more saturated fatty acid residues having 20 or more carbon atoms; (b) Triglycerides containing one or more monounsaturated fatty acid residues having 20 or more carbon atoms; (c) Unsaturated fatty acid-linked monoglycerides.
When the oily composition contains the component (a), the content of the component (a) is 2.5% by mass or more, when the oily composition contains the component (b), the content of the component (b) is 3.5% by mass or more, and when the oily composition contains the component (c), the content of the component (c) is 0.5% by mass or more, based on the total mass of the oily composition.
The oily composition characterized by:
<2>
A plastic oil composition comprising the oily composition according to claim 1, which has an oil-off value of 2 cm or less and a heat shock resistance of 0.5 cm or more.
<3>
The plastic oil composition according to <2>, characterized in that the SFC value at 5 to 40 ° C. is 6.5% or less.

The present invention provides a plastic oil and fat composition that reduces oil-off while reducing the saturated fatty acid and trans fatty acid content of the oils and fats used as raw materials for the plastic oil and fat composition, and a method for producing the oil-based composition contained in the plastic oil and fat composition.

The present invention relates to a plastic oil composition having an oil-off reducing effect and an oily composition contained in the plastic oil composition. These will be described in detail below.
(Oil-based composition contained in a plastic oil composition having an oil-off reducing effect)
The oily composition contained in the plastic oil composition having an oil-off reducing effect of the present invention contains at least two, preferably three of the following (a), (b), and (c):
(a) a triglyceride containing one or more saturated fatty acid residues having 20 or more carbon atoms; (b) a triglyceride containing one or more monounsaturated fatty acid residues having 20 or more carbon atoms; and (c) an unsaturated fatty acid-bound monoglyceride. When component (a) is contained, the content of component (a) is 2.5% by mass or more and 30% by mass or less; when component (b) is contained, the content of component (b) is 3.5% by mass or more and 50% by mass or less; and when component (c) is contained, the content of component (c) is 0.5% by mass or more and 10% by mass or less, based on the total mass of the oily composition.

Therefore, more specifically, the oily composition contained in the plastic oil composition of the present invention comprises the following (1) to (4):
(1) An oily composition containing, based on the total mass of the oily composition, 2.5% to 30% by mass of the (a) component and 3.5% to 50% by mass of the (b) component. (2) An oily composition containing, based on the total mass of the oily composition, 2.5% to 30% by mass of the (a) component and 0.5% to 10% by mass of the (c) component. (3) An oily composition containing, based on the total mass of the oily composition, 3.5% to 50% by mass of the (b) component and 0.5% to 10% by mass of the (c) component. (4) An oily composition containing, based on the total mass of the oily composition, 2.5% to 30% by mass of the (a) component, 3.5% to 50% by mass of the (b) component, and 0.5% to 10% by mass of the (c) component.
Among these, the oily composition (4) is more preferred.
In the oily composition contained in the plastic oil and fat composition of the present invention, by containing the triglyceride (a) or (b) containing a saturated or monounsaturated fatty acid residue having 20 or more carbon atoms in the above range, oil that is liquid at room temperature can be entrapped in the network structure formed by the triglyceride (a) or (b). Furthermore, by containing the unsaturated fatty acid-bound monoglyceride (c), the network structure formed by the triglyceride can be strengthened, allowing the liquid oil to be entrapped even more firmly.
Therefore, by including all of (a), (b), and (c) within the above ranges, the above-mentioned effects are more effectively exhibited, and oil-off of a plastic fat composition containing the oily composition is reduced.

The oil-based composition contained in the plastic oil composition of the present invention having the effect of reducing oil-off can contain optional ingredients other than those mentioned above, such as emulsifiers such as saturated distilled monoglycerides, propylene glycol fatty acid esters, polyglycerol fatty acid esters, and phospholipids, crystal adjusters such as sorbitan fatty acid esters, antioxidants such as vitamin E, vitamin C derivatives, and tea extracts, coloring agents such as carotene, caramel, and red koji pigments, and flavorings, to the extent that this effect is not impaired.

In the oily composition contained in the plastic oil composition having the oil-off reducing effect of the present invention, the content of (a) in the above cases (1), (2), and (4) is 2.5% by mass or more and 30% by mass or less, and preferably 4.0% by mass or more and 15% by mass or less, based on the total mass of the oily composition.
In the above cases (1), (3), and (4), the content of (b) in the oily composition is 3.5% by mass or more and 50% by mass or less, and preferably 5.0% by mass or more and 30% by mass or less, based on the total mass of the oily composition.
In the above cases (2), (3), and (4), the content of (c) in the oily composition is from 0.5 to 10% by mass, and preferably from 1.0 to 5.0% by mass, based on the total mass of the oily composition.

The oil-based composition contained in the plastic oil composition having the oil-off reducing effect of the present invention can be used as is by mixing the solid components of the composition that imparts the oil-off reducing effect as long as all of the components are powder or granular. If liquid components are included, they can be mixed to form a paste and used.

The oil-based composition contained in the plastic oil composition of the present invention, which has the effect of reducing oil-off, can be prepared simply by adding the above-mentioned components to a heated oil raw material and stirring, so no special equipment is required and it can be used in general production equipment for plastic oil compositions.

When preparing the oil-based composition contained in the plastic oil composition having an oil-off reducing effect of the present invention, the amount of each component that imparts the oil-off reducing effect can be appropriately adjusted so that (a) is 2.5% by mass or more and 30% by mass or less, based on the total mass of the oil-based composition, when (a) is used; when (b) is used, (b) is appropriately adjusted so that (b) is 3.5% by mass or more and 50% by mass or less; and when (c) is used, (c) is appropriately adjusted so that (c) is 0.5% by mass or more and 10% by mass or less. Furthermore, the above-mentioned oil-based composition contains at least two, and preferably three, of (a), (b), and (c).

(Plastic oil and fat composition)
The plastic oil composition of the present invention comprises the above-mentioned oily composition and is in a form containing an aqueous phase.
The plastic oil-and-fat composition of the present invention is not particularly limited, and may be, for example, margarines. Furthermore, the emulsion form containing the aqueous phase is not particularly limited, and examples thereof include water-in-oil, oil-in-water, oil-in-water-in-oil, and water-in-oil-in-water. In this case, the content of the oily composition is preferably 20 to 85% by mass, more preferably 30 to 85% by mass, and even more preferably 30 to 70% by mass, based on the total mass of the plastic oil-and-fat composition. Furthermore, the content of the aqueous phase is preferably 15 to 80% by mass, more preferably 15 to 70% by mass, and even more preferably 30 to 70% by mass, based on the total mass of the plastic oil-and-fat composition.
Margarines refer to margarine or fat spreads. Margarine contains 80% by mass or more of fats and oils, while fat spreads contain less than 80% by mass of fats and oils.

(raw materials)
The raw materials of the oily composition contained in the plastic oil composition of the present invention will be described below.
The oils and fats used in the oily composition contained in the plastic oil and fat composition may be any oils and fats as long as the trans fatty acids and saturated fatty acids are reduced in the resulting plastic oil and fat composition and the oily composition contained in the plastic oil and fat composition.In this case, the content of trans fatty acids is preferably 7g or less, more preferably 3.5g or less, even more preferably 1.0g or less, and most preferably 0.3g or less per 100g of the plastic oil and fat composition.For saturated fatty acids, the proportion of saturated fatty acid residues in the constituent fatty acid residues of the oily composition contained in the plastic oil and fat composition is preferably 30% by mass or less, more preferably 20% by mass or less, even more preferably 15% by mass or less, and most preferably 10% by mass or less.
As a combination of the trans fatty acid content and the proportion of saturated fatty acid residues in the constituent fatty acid residues, for example, a plastic oil/fat composition having a trans fatty acid content of 1.0 g or less per 100 g of the plastic oil/fat composition and having saturated fatty acids in the constituent fatty acids of the oily composition contained in the plastic oil/fat composition of 15 mass % or less is preferred.Furthermore, a plastic oil/fat composition having a trans fatty acid content of 0.3 g or less per 100 g of the plastic oil/fat composition and having saturated fatty acids in the constituent fatty acids of the oily composition contained in the plastic oil/fat composition of 10 mass % or less is even more preferred.

Examples of fats and oils include soybean oil, corn oil, olive oil, palm oil, palm kernel oil, coconut oil, canola oil, rice bran oil, safflower oil, high oleic safflower oil, rapeseed oil, refined rapeseed oil, heavily hydrogenated rapeseed oil, sunflower oil, high oleic sunflower oil, cotton oil, cottonseed oil, peanut oil, perilla oil, sesame oil, perilla oil, safflower oil, high oleic safflower oil, grape seed oil, peanut oil, macadamia nut oil, hazelnut oil, pumpkin seed oil, linseed oil, walnut oil, camellia oil, tea seed oil, mustard oil, rice oil, wheat germ oil, etc., as well as partially hydrogenated oils, interesterified oils, fractionated oils, etc., and one or more of these may be selected. The selected oil or fat may be blended so that the oil content is 20% to 85% by mass, based on the total mass of the plastic oil or fat composition; 20% to 85% by mass is preferred, 30% to 85% by mass is more preferred, and 30% to 70% by mass is most preferred.

(Other ingredients)
Furthermore, if necessary, raw materials commonly used in plastic fat and oil compositions can be used as long as they do not increase the trans fatty acid content or cause oil-off. Examples of such raw materials include water, skim milk powder, salt, potassium chloride, acidulants such as acetic acid, lactic acid, and gluconic acid, thickening stabilizers such as guar gum, carrageenan, gum arabic, crystalline cellulose, carboxymethylcellulose, methylcellulose, gelatin, agar, dextrin, starch, and modified starch, sweeteners, antioxidants, pH adjusters, flavorings, colorings, and vitamins.

(Method for preparing interesterified oil)
The interesterified oil can be prepared by any interesterification method known in the art, for example, by random interesterification using chemical catalysts such as sodium methylate, sodium hydroxide, etc.

(Method for producing plastic oil and fat composition)
Next, an example of a method for producing a plastic oil composition will be described.
(A) The raw material fat or oil is heated to above its melting point, for example, 40°C to 85°C, and a composition that imparts an oil-off reducing effect is added and dissolved to prepare an oil phase. If necessary, an emulsifier such as a glycerin fatty acid ester, a sorbitan fatty acid ester, or lecithin, a pigment such as β-carotene, or an oil-soluble vitamin can be added to the oil phase.

(b) Prepare the aqueous phase by adding and dissolving salt, skim milk powder, and other dairy products in warm water at approximately 40°C to 60°C.

(c) The aqueous phase is added to the oil phase at a constant rate while stirring to prepare an emulsion. The stirring rate of the oil phase and the rate at which the aqueous phase is added can be adjusted appropriately depending on the amount of oil in the plastic oil composition so as to produce a uniform emulsion.

(d) If necessary, a flavoring is added to this emulsion, and the emulsion maintained at 50°C is rapidly cooled to 10°C using a closed continuous scraping tube cooler such as a Combinator or Perfector, followed by kneading and crystallization. The crystallized emulsion is kneaded using a pin machine or the like to obtain a plastic oil and fat composition. Examples of plastic oil and fat compositions include margarine and spreads.
There is no time limit for steps (a) and (b), and either step may be carried out first, or both steps may be carried out simultaneously.

The evaluation criteria of the present invention in this specification are summarized below.
(Oil-off evaluation test)
The sample was packed into a 3 cm diameter glass ring, cooled on ice for 10 minutes, and then stored at 5°C for 72 hours. A 1 cm x 5 cm filter paper was inserted into the sample by 1 cm, and the sample was left to stand at 23°C for 1 hour.
Oil-off was evaluated by measuring the height of liquid oil that had soaked into the filter paper after leaving it to stand for 1 hour (n=2).
The oil-off value of the plastic oil composition of the present invention is preferably 2 cm or less.

(Heat shock resistance test)
The sample was left to stand at 10°C for 2 weeks, and then punched out with a glass ring 2 cm in diameter and 1 cm in height, placed on a petri dish, and kept at 30°C for 1 hour, after which the height of the sample was measured.
The heat shock resistance of the plastic oil composition of the present invention is preferably 0.5 cm or more.

(Solid Fat Content (SFC) Measurement Test)
The sample was placed in a glass tube for SFC measurement to a height of 1 cm, and the SFC (%) was measured at 5 to 40° C. (n=3).
The SFC value of the plastic oil composition of the present invention at 5 to 40° C. is preferably 10% or less, more preferably 6.5% or less.

Examples of the present invention are described in detail below, but the present invention is not limited to these examples.

1. Preparation of Oil-Based Compositions Contained in Plasticized Oil and Fat Compositions The oil and fat raw materials shown in Table 1 and the composition having an oil-off inhibitory effect were mixed to a total mass of 100 g, then stirred at 50°C and cooled with ice water to prepare the oil-based compositions of Examples 1 to 4. The oil and fat raw materials used were rapeseed oil, soybean oil, corn oil, and oils LS, LU, and LUS. LS is an interesterified oil containing 5.0% or more triglycerides containing one or more saturated fatty acid residues with 20 or more carbon atoms. LU is an interesterified oil containing 5.0% or more triglycerides containing one or more monounsaturated fatty acid residues with 20 or more carbon atoms. LUS is an interesterified oil containing 5.0% or more triglycerides each containing one or more saturated fatty acid residues with 20 or more carbon atoms and one or more monounsaturated fatty acid residues with 20 or more carbon atoms. The fats and oils LS, LU, and LUS were prepared by combining the fats and oils listed as "raw fats and oils" in the raw material section of the plastic fat and oil composition of the present invention so as to achieve the desired fatty acid composition and then subjecting them to interesterification. After preparation, the resulting interesterified oil was used as a sample, and the weight percent fatty acid content in the sample was measured based on the method for measuring fatty acid composition (FID temperature-programmed gas chromatography) described in 2.4.2.2-2013 of "Standard Methods for the Analysis of Fats, Oils, and Related Materials" compiled by the Japan Oil Chemists' Society, and it was confirmed that the sample had the desired composition.
In Table 1, the blend amount of each component is shown as a mass ratio (%) based on the total mass of the oily composition. Comparative Examples 1 to 3 were prepared in the same manner.

2. Preparation of Plastic Oil and Fat Compositions As shown in Tables 2 to 4, an oil phase and an aqueous phase were prepared so that the total mass was 100 g.
That is, the oil phase was prepared by mixing fats and oils with a composition having an oil-off reducing effect and stirring at 50°C. The compositions imparting the oil-off reducing effect were (a) a triglyceride containing one or more saturated fatty acid residues having 20 or more carbon atoms, (b) a triglyceride containing one or more monounsaturated fatty acid residues having 20 or more carbon atoms, and (c) an unsaturated fatty acid-bound monoglyceride. The aqueous phase was prepared by mixing water, salt, and gelatin and stirring at 50°C.
The oil phase and the aqueous phase were emulsified by adding the aqueous phase at 50°C at a rate of 20 L/min to the oil phase at 50°C while stirring at 140 rpm. The resulting emulsion at 50°C was rapidly cooled to 10°C in a closed continuous scraping tube cooler and kneaded, and then further kneaded in a pin machine while maintaining the temperature at 10°C.
160 g of the kneaded emulsion was filled into a plastic container to obtain plastic oil and fat compositions, Example Products 5 to 11 and Comparative Examples 4 to 6 (Table 2), Example Products 12 to 15 and Comparative Examples 7 to 9 (Table 3), Example Products 16 to 20 and Comparative Examples 10 to 12 (Table 4). These were stored at 10°C.
The trans fatty acid content of the obtained plastic oil composition according to the example product was 0.3 g to 1.6 g, and all were 3.5 g/100 g or less. The saturated fatty acid content of the constituent fatty acids in the oil composition according to the example product was 9 mass % to 15 mass %, and all were 15 mass % or less.

(Test Example 1)
<Oil-off evaluation test>
Example products 5 to 20 and Comparative examples 4 to 12 (hereinafter also referred to as samples) were packed into glass rings with a diameter of 3 cm, cooled on ice for 10 minutes, and then stored at 5°C.
A 1 cm x 5 cm filter paper was inserted 1 cm into the sample stored at 5°C for 72 hours, and the sample was left to stand at 23°C for 1 hour.
Oil-off was evaluated by measuring the height of the liquid oil that had soaked into the filter paper after leaving it to stand for 1 hour (n=2). For each level, oil-off of 2.0 cm or less was rated as "good: ○", and oil-off of 2.1 cm or more was rated as "poor: ×".

(Test Example 2)
<Heat shock resistance test>
The sample was left to stand at 10° C. for 2 weeks. After standing, the sample was punched out with a glass ring having a diameter of 2 cm and a height of 1 cm and placed on a petri dish. This was then kept at 30° C. for 1 hour, after which the height of the sample was measured.
When the height of the sample was 0.5 cm or more, the heat shock resistance was rated as "good: O", and when the height was less than 0.5 cm, the heat shock resistance was rated as "poor: X".

(Test Example 3)
<Solid Fat Content (SFC) Measurement Test>
Example products 1 to 20 and Comparative examples 1 to 12 were placed in glass tubes for SFC measurement to a height of 1 cm, and the SFC (%) at 5°C was measured (n=3).

(Test results)
As shown in Tables 2 to 4, Example Products 5 to 20 exhibited good oil-off and heat shock resistance regardless of the ratio of the oil phase to the water phase. Example Product 5 in Table 2, Example Product 12 in Table 3, and Example Product 16 in Table 4 had the best results in both oil-off and heat shock resistance.
In contrast, Comparative Examples 4 to 12 were not good in either oil-off or heat shock resistance.

As a result of the measurements, the SFC values for Example Products 5 to 20 were 6.5% or less.

Thus, it has become clear that when a specified amount of at least two, and preferably three of (a), (b), and (c) of (a) triglyceride containing one or more saturated fatty acid residues having 20 or more carbon atoms, (b) triglyceride containing one or more monounsaturated fatty acid residues having 20 or more carbon atoms, and (c) unsaturated fatty acid-bound monoglyceride are contained, oil-off is reduced, and it is possible to prepare a plastic oil composition that is endowed with heat shock resistance, even when an oil or fat with low saturated fatty acid and trans fatty acid content is used.

The present invention provides a plastic oil and fat composition that can reduce the saturated fatty acid and trans fatty acid contents of the oils and fats used as raw materials for the plastic oil and fat composition while reducing oil-off, and a method for producing the oil-based composition contained in the plastic oil and fat composition, thereby providing safe, healthy, and high-quality plastic oil and fat compositions such as margarine and fat spreads.

Claims (3)

An oily composition comprising the following (a), (b) , and (c):
(a) Triglycerides containing one or more saturated fatty acid residues having 20 or more carbon atoms
(b) Triglycerides containing one or more monounsaturated fatty acid residues having 20 or more carbon atoms
(c) Unsaturated fatty acid-bound monoglyceride
the oily composition, wherein, based on the total mass of the oily composition, the content of the component (a) when the component (a) is contained is 2.5 mass% or more, the content of the component (b) when the component (b) is contained is 3.5 mass% or more, and the content of the component (c) when the component (c) is contained is 0.5 mass% or more ;
and an aqueous phase . The plastic oil-and-fat composition according to claim 1, wherein the content of the oily composition is 20 to 85% by mass relative to the total mass of the plastic oil-and-fat composition, and the content of the aqueous phase is 15 to 80% by mass relative to the total mass of the plastic oil-and-fat composition. The plastic oil composition according to claim 2, characterized in that the SFC value at temperatures between 5 and 40°C is 6.5% or less.