JP2020010614A - Plastic oil-and-fat composition - Google Patents

Abstract

To provide a plastic oil-and-fat composition containing oil-and-fat of two-chain-length β type having stable crystal polymorphism.SOLUTION: A plastic oil-and-fat composition contains a powdery oil-and-fat composition, wherein the powdery oil-and-fat composition contains oil-and-fat powder having a melting point of 50°C or higher and two-chain-length β type crystal; oil-and-fat crystal of the oil-and-fat contained in the plastic oil-and-fat composition includes two-chain-length β type; and a ratio of the oil-and-fat powder based on the oil-and-fat contained in the plastic oil-and-fat composition is 0.5 to 30 mass%.SELECTED DRAWING: None

Description

  The present invention relates to a plastic fat or oil composition in which the fat or oil contained in the plastic fat or oil composition has a two-chain-length β-type polymorph.

  The plastic fat composition is used for kneading or folding into bakery dough. It is also suitable for applications such as spreads, coating creams and sand creams. The plastic fat composition is typically butter. The bakery foods in which butter is used have good flavor and mouthfeel. However, butter is difficult to use because it is expensive and its physical properties change over time. Therefore, margarine, fat spread, shortening, and the like using inexpensive and good workability animal and plant fats and oils other than butter (milk fat) have been developed.

  Particularly since the problem of trans fatty acids, animal and vegetable fats and oils and transesterified and / or fractionated fats and oils have been used in plastic fat compositions. However, the triacylglycerol produced by transesterification and / or fractionation is limited to SSS, SSU, SUS, SUU, USU, UUU (S is a saturated fatty acid, U is a cis unsaturated fatty acid). The options for reforming are limited.

  Under such circumstances, for example, JP-A-2002-069694 discloses an oil / fat composition containing a compound crystal composed of SUS and USU. The compound crystal is a stable two-chain-length β-type crystal. Therefore, it is considered that the change in physical properties of the oil and fat composition over time is extremely small. However, in order for SUS and USU to form a compound crystal, it is necessary that the abundance ratio of SUS and USU is close to 1: 1 and that the content of SUS and USU in the fat or oil contained in the fat or oil composition is high. There is. In order to obtain fats and oils having a high content of SUS and USU, advanced fat and oil processing technology is required. Thus, the use of compound crystals can be very costly.

JP-A-2002-069694

  Therefore, development of a plastic fat composition having a low trans fatty acid content, a small change in physical properties, and good workability has been demanded.

  An object of the present invention is to provide a plastic fat composition having a low trans fatty acid content, a small change in physical properties and good workability, and a method for producing the same.

  The present inventors have conducted intensive research on the above problems. As a result, since the plastic fat composition contains a fat powder having a melting point of 50 ° C. or more and a two-chain β-type crystal, the fat contained in the plastic fat composition can be a stable two-chain β-type crystal. I found that it could take the form. Thus, the present invention has been completed. That is, the present invention can include the following aspects.

[1] A plastic fat composition containing a powdered fat composition,
The powdered fat or oil composition contains a fat or oil powder having a melting point of 50 ° C. or more and a two-chain length β-type crystal,
The fat and oil crystals of the fat and oil contained in the plastic fat and oil composition contain a two-chain β-form,
The said plastic fat composition.
[2] The plastic fat composition according to [1], wherein a ratio of the fat powder to the fat contained in the plastic fat composition is 0.5 to 30% by mass.
[3] The mass ratio of the HOH content (HOH / (HHO + OHO)) of the fats and oils contained in the plastic fat composition to the total amount (HHO + OHO) of the HHO content and the OHO content is 0.3 to 2.0. The plastic fat composition according to [1] or [2], wherein
Here, H, O, HHO, OHO and HOH mean the following.
H: a saturated fatty acid having 16 to 24 carbon atoms O: oleic acid HHO: oleic acid (O) at the 1 or 3 position of glycerol, 2 or 3 position, or 16 to 24 carbon atoms at the 1 and 2 positions Triacylglycerol OHO in which saturated fatty acid (H) is ester-bonded: oleic acid (O) in the first and third positions of glycerol, and triacylglycerol HOH in which saturated fatty acid (H) having 16 to 24 carbon atoms is ester-bonded in the second position : Triacylglycerol in which oleic acid (O) is in the 2-position of glycerol and a saturated fatty acid (H) having 16 to 24 carbon atoms is in the 1- and 3-positions [4] is occupied in the fats and oils contained in the plastic fat composition. The plastic fat composition according to any one of [1] to [3], wherein the total content of HHO, OHO, and HOH is 10 to 60% by mass.
[5] The plastic fat composition according to any one of [1] to [4], wherein the fat powder has an average particle size of 50 μm or less.
[6] The plastic fat composition according to any one of [1] to [5], wherein the particles of the fat powder have a plate shape having an aspect ratio (2) of 2.5 or more.
[7] The fat or oil powder contains one or more XXX-type triglycerides having a fatty acid residue X having a carbon number x at positions 1 to 3 of glycerin, wherein the carbon number x is an integer selected from 14 to 22. A plastic oil / fat composition according to any one of [1] to [6].
[8] The plastic fat composition according to any one of [1] to [7], wherein the loose bulk density of the powdered fat composition is 0.05 to 0.6 g / cm ³ .
[9] A food containing the plastic fat composition according to any one of [1] to [8].
[10] A powdery fat or oil composition containing a fat or oil powder having a melting point of 50 ° C or more and a two-chain β-type crystal is dispersed in a plastic fat or oil composition dough in a molten state of less than 50 ° C, and then cooled. A method for producing an oil / fat composition.
[11] A crystallization accelerator for a plastic fat composition comprising, as an active ingredient, a fat powder having a melting point of 50 ° C. or more and a two-chain β-form crystal.

  The present invention provides a plastic oil / fat composition in which the oil / fat contained in the plastic oil / fat composition has a stable polymorphism of two-chain length β type. The present invention also provides a method for producing a plastic fat composition using the powdered fat composition.

It is the figure which showed typically the micrograph at the time of making fats and oils powder adhere to the surface of a core material. In the figure, A is a core substance, and B is a fat powder. The length of the line segment ab (the length in the vertical direction from the adhering surface of the particles adhering to the surface of the core material) is the value of the thickness of the fat or oil powder. It is a microscope photograph (1500 times) at the time of making the powdered fat composition A adhere to the glass bead surface, and the part measured as the particle thickness is shown by the straight line (two places).

  Hereinafter, the plastic fat composition of the present invention will be described step by step.

<Powder fat composition>
The plastic fat composition of the present invention includes a powder fat composition containing a fat powder having a melting point of 50 ° C. or more and a two-chain β-type crystal. The powdered fat or oil composition is a powdery solid at normal temperature (20 ° C.). There is no particular limitation on the fat or oil used as a raw material for the fat or oil powder having a melting point of 50 ° C. or more and a two-chain β-form crystal as long as it is an edible fat or oil. For example, there are palm stearin, extremely hardened rapeseed oil, extremely hardened high erucic acid rapeseed oil, extremely hardened sunflower oil, extremely hardened safflower oil, and extremely hardened palm oil having a melting point of 50 ° C. or higher. These fats and oils having a melting point of 50 ° C. or more may be used alone or in combination of two or more. The melting point of the fat as a raw material of the fat powder is preferably 55 ° C. or more, more preferably 58 ° C. or more, and further preferably 61 ° C. or more. When the melting point of the fat as the raw material of the fat powder is within the above range, it effectively functions as a two-chain-length β-type crystal seed. The melting point of the fat or oil powder (the fat or oil used as a raw material of the fat or oil) can be measured according to 2.2.4.2 melting point (increased melting point) of the standard fat and oil analysis test method (edited by the Japan Oil Chemists' Society-1996).

  The fat or oil powder contained in the powder or fat composition contains a two-chain β-type crystal. Here, the two-chain length of the fat and oil crystals is determined by measuring the long surface interval of the fat and oil crystals by X-ray diffraction measurement. That is, the long plane spacing of the fat crystals is measured in the range of 2θ of 0 to 8 degrees. At this time, a diffraction peak corresponding to 40 to 50 ° is detected, and a diffraction peak corresponding to 60 to 65 ° is not detected, or even if detected, less than １ ／ of the diffraction intensity of the diffraction peak corresponding to 40 to 50 ° ( (Preferably less than 1/10), it is determined that the fat crystals have a two-chain length structure. Here, β-form is one of crystalline polymorphs of fats and oils. Some fat crystals have the same composition but different sublattice structures (crystal structures), and are called crystal polymorphs. Typically, there are hexagonal type, orthorhombic vertical type, and triclinic parallel type, which are called α-type, β′-type, and β-type, respectively. Here, that the crystal form of the fat and oil crystal is β-form means that the fat and oil crystal turns around 4.5 to 4.7 °, preferably around 4.6 ° in X-ray diffraction measurement at 2θ of 17 to 26 °. This is the case where the compound has a diffraction peak, and particularly has no diffraction peak around 4.1 to 4.3 °, preferably 4.2 °. More specifically, in the X-ray diffraction measurement, a peak intensity around 2θ = 19 ° (4.6 °), which is a characteristic peak of β-type, and a peak intensity 2θ =, which is a characteristic peak of α-type (and β ′), are obtained. The ratio of peak intensities around 21 ° (4.2 °): 19 ° / (19 ° + 21 °) [4.6 ° / (4.6 ° + 4.2 °)] to calculate the abundance of β-form crystals Can be an index that represents In the present invention, the peak intensity ratio is preferably 1. However, the lower limit of the peak intensity ratio is, for example, 0.4 or more, preferably 0.5 or more, more preferably 0.6 or more, still more preferably 0.7 or more, still more preferably 0.75 or more, and most preferably. May be 0.8 or more. When the peak intensity ratio is 0.4 or more, it can be considered that more than 50% by mass of the fat and oil crystals is β-type. The upper limit of the peak intensity ratio is preferably 1, but 0.99 or less, 0.98 or less, 0.95 or less, 0.93 or less, 0.90 or less, 0.85 or less, 0.80 or less, etc. It may be. The peak intensity ratio can be any of the above lower limit and upper limit, or any combination. When the fat and oil crystals of the fat and oil powder are of the two-chain length β type (the peak intensity ratio is within the above range), they function effectively as the two-chain length β-type crystal seed.

The above-mentioned X-ray diffraction method for identifying the polymorph of fats and oils will be additionally described. The diffraction conditions are given by the following Bragg equation.
2d sin θ = nλ (n = 1, 2, 3,...)
A diffraction peak appears at a position satisfying this equation. Here, d is the lattice constant, θ is the diffraction (incident) angle, λ is the wavelength of the X-ray, and n is a natural number. From the diffraction peak 2θ = 16 to 27 ° corresponding to the short plane interval, information on packing (sublattice) of the side surface in the crystal can be obtained, and the polymorph can be identified. In particular, in the case of triacylglycerol, a β-type characteristic peak appears at 2θ = 19, 23, or 24 ° (around 4.6 °, 3.9 °, or 3.8 °) and α at 21 ° (4.2 °). A characteristic peak of the type appears. The X-ray diffraction measurement is performed using, for example, an X-ray diffractometer (for example, Rigaku Corporation, a sample horizontal X-ray diffractometer Ultima IV) maintained at 20 ° C. As a light source for X-rays, CuKα rays (1.54 °) are most often used. In the analysis of the intensity of the diffraction peak obtained by the X-ray diffraction measurement, it is appropriate to perform correction to eliminate the influence of the amorphous portion of the fat or oil on the baseline. For example, background removal processing may be performed by the Sonneveld-Visser method or the like.

  The fat or oil powder contained in the powder or fat composition preferably has an average particle size of 30 μm or less. The average particle size of the fat or oil powder is preferably less than 20 μm, more preferably 2 to 16 μm, and still more preferably 4 to 13 μm. The average particle diameter (effective diameter) is a value (d50) measured by a laser diffraction scattering method (ISO133201, ISO9276-1) using a particle size distribution measuring device (for example, Microtrac MT3300ExII manufactured by Nikkiso Co., Ltd.). The effective diameter means the spherical particle size when the measured diffraction pattern of the fat or oil powder to be measured conforms to the theoretical diffraction pattern obtained assuming a spherical shape. Thus, in the case of the laser diffraction scattering method, since the effective diameter is calculated by matching the theoretical diffraction pattern obtained assuming a spherical shape and the actually measured diffraction pattern, even if the measurement target has a plate-like shape. The same principle can be used to measure a spherical shape. When the average particle size (average particle diameter) of the fat and oil powder having a melting point of 50 ° C. or more and a two-chain β-form crystal is within the above range, the plastic fat and oil composition has a good mouth feel.

  The above-mentioned powdered fat or oil composition has, in addition to a fat or oil powder having a melting point of 50 ° C. or more and a two-chain β-type crystal, an emulsifier, a fragrance, skim milk powder, whole milk powder, cocoa powder, sugar, dextrin, sodium caseinate, and others. May be included. The amount of these other components can be any amount as long as the effects of the present invention are not impaired. For example, when the total mass of the powder and fat composition is 100 mass%, the other components are preferably 0 to 70 mass%, more preferably 0 to 50 mass%, and still more preferably 0 to 30 mass%. %. 90% by mass or more of the other components are preferably powders having an average particle diameter of 1000 μm or less, more preferably powders having an average particle diameter of 500 μm or less.

  One preferred embodiment of the powdered fat or oil composition is a powdered fat or oil composition substantially consisting of a fat or oil powder having a melting point of 50 ° C. or more and a two-chain β-form crystal. Further, “substantially” means that the content of components other than the fat and oil powder contained in the powder and fat composition is, for example, 0 to 15% by mass when the powder and fat composition is 100% by mass, and preferably Means 0 to 10% by mass, more preferably 0 to 5% by mass.

  As one preferred embodiment of the powdered fat or oil composition, particles of the fat or oil powder having a melting point of 50 ° C. or more and a two-chain β-form crystal exhibit a plate-like shape (a plate-like shape). . Here, the plate-like shape has an aspect ratio of preferably 1.2 or more. The aspect ratio is more preferably 1.2 to 3.0, still more preferably 1.3 to 2.5, and even more preferably 1.4 to 2.0. Here, the aspect ratio is defined as the ratio of the length of the long side to the length of the short side of the particle figure, which is surrounded by a rectangle circumscribing the particle figure so as to minimize the area. Therefore, when the particles have a spherical shape, the aspect ratio is smaller than 1.1. In the prior art, the method of directly dissolving and dissolving fats and oils having a high solid fat content at normal temperature such as extremely hardened oils, the particles of the fats and oils powder have a spherical shape due to surface tension, and the aspect ratio is less than about 1.1. Become. The aspect ratio is measured, for example, by directly observing with an optical microscope or a scanning electron microscope or the like, by measuring the length in the long axis direction and the length in the short axis direction of the arbitrarily selected particles. It can be obtained as an average value of the numbers.

Further, the particle shape of the fat or oil powder having a melting point of 50 ° C. or more and a two-chain-length β-type crystal can also be expressed using the aspect ratio (2) of the particle. The aspect ratio (2) in the present invention is a value obtained by dividing the major axis of the particle by the thickness [= major axis / thickness]. When the particles are perfectly spherical, the value of the aspect ratio (2) is 1 [= 1/1], and the value of the aspect ratio (2) increases as the degree of flatness of the particles increases (the thickness decreases). Becomes larger.
The aspect ratio (2) of the particles can be measured, for example, by the following methods (a) and (b).
(A) When the long diameter and thickness of each particle can be measured from the electron micrograph of the particle, the long diameter and the thickness (length and width) of each particle in the electron micrograph are measured. Measurement is performed to determine the aspect ratio (2) for each particle, and the average value is defined as the particle aspect ratio (2). For example, this measurement method can be used when the particles are spherical.
(B) When the long diameter or thickness of each particle cannot be measured from the electron micrograph of the particle. For example, when the particle has a flat shape or a plate shape, each of the particles in the electron micrograph is For particles, the major axis can be measured, but the thickness is often invisible in photographs, and it is difficult to measure directly from photographs. In such a case, the particles are attached to the surface of a core material such as glass beads, an electron micrograph is taken, and the vertical length from the attachment surface of the particles attached to the core material surface is defined as the thickness of the particles. Measure and use this value as the thickness.
This is explained with reference to the schematic diagram of FIG. 1. In FIG. 1, A is a core substance, B is a particle for measuring the aspect ratio (2), and the length of the line segment ab (from the adhesion surface of the particle adhering to the core material surface). Is the value of the thickness of this particle. As the value of the major axis, an average particle diameter (d50) measured based on the laser diffraction scattering method described above is used. The aspect ratio (2) [= major axis / thickness] can be determined from the values of the major axis and the thickness measured in this way.

  The aspect ratio (2) of the particles of the fat and oil powder of the present invention is preferably 2.5 or more, more preferably 2.5 to 100, further preferably 3 to 50, and still more preferably 3 to 50. 20 and most preferably 3 to 15. When the aspect ratio and / or aspect ratio (2) of the fat or oil powder having a melting point of 50 ° C. or more and the two-chain-length β-type crystal is within the above range, the fat or oil powder is more effective as a two-chain-length β-type crystal seed. To work.

One preferred embodiment of the powdered oil / fat composition is a powdered oil / fat composition having a loose bulk density of 0.05 to 0.6 g / cm ³ . The loose bulk density of the powdered fat or oil composition is, for example, when substantially composed of only the fat or oil powder, preferably 0.1 to 0.5 g / cm ³ , more preferably 0.1 to 0.4 g / cm ³ or It is 0.15-0.4 g / cm < ³ >, More preferably, it is 0.2-0.3 g / cm < ³ >. Here, the “loose bulk density” is the packing density in a state where the powder is naturally dropped. The loose bulk density (g / cm ³ ) is measured, for example, by dropping an appropriate amount of the powdered oil and fat composition into a measuring cylinder having an inner diameter of 15 mm × 25 mL from about 2 cm above the upper opening end of the measuring cylinder and loosely filling the same. It is determined by measuring the filled mass (g) and reading the volume (mL), and calculating the mass (g) of the powdered fat or oil composition per mL. The loose bulk density can also be calculated from the bulk specific gravity measured based on JIS K-6720 (or ISO 1060-1 and 2) using a bulk specific gravity measuring device manufactured by Kuramochi Kagaku Kikai Seisakusho Co., Ltd. Specifically, 120 mL of the sample is dropped into the receiver from a position 38 mm above the upper opening of the receiver (a 100-mL cylindrical container having an inner diameter of 40 mm and a height of 85 mm). The sample raised from the receiver is scraped off, the mass (Ag) of the sample corresponding to the internal volume (100 mL) of the receiver is weighed, and the loose bulk density can be obtained from the following equation.
Loose bulk density (g / mL) = A (g) / 100 (mL)
It is preferable to perform the measurement three times and take the average value.

Further, the loose bulk density can also be measured by the following method.
The loose bulk density (g / cm ³ ) can be measured with a powder tester (model PT-X) manufactured by Hosokawa Micron Corporation.
Specifically, a sample is charged into a powder tester, the upper chute in which the sample is charged is vibrated, and the sample is dropped into a lower measuring cup by natural fall. The sample raised from the measuring cup is scraped off, and the mass (Ag) of the sample corresponding to the internal volume (100 cm ³ ) of the receiver is weighed, and the loose bulk density is determined from the following equation.
Loose bulk density (g / cm ³ ) = A (g) / 100 (cm ³ )
Further, an appropriate amount of the powdered oil and fat composition was dropped into a measuring cylinder having an inner diameter of 15 mm × 25 mL from above about 2 cm from the upper opening end of the measuring cylinder and loosely filled, and the filled mass (g) was measured and the capacity (mL) ) Is read, and the mass (g) of the powdered fat or oil composition per 1 mL is calculated.

<Method for producing powdered oil / fat composition>
In the method for producing a powdery fat or oil composition contained in the plastic fat or oil composition of the present invention, the method comprises the steps of: ) Is not particularly limited, and a conventionally known method such as freeze-pulverization, extrusion granulation, and spray cooling granulation may be applied. However, as one preferred embodiment of converting fats and oils having a melting point of 50 ° C. or more into powdery fat crystals, fats and oils having a melting point of 50 ° C. or more include fatty acids having x carbon atoms in the first to third positions of glycerin. Embodiments using fats and oils containing one or more XXX-type triglycerides having a residue X, wherein the carbon number x is an integer selected from 14 to 22 are mentioned.

  The XXX type triglyceride contained in the fat or oil having a melting point of 50 ° C. or more is a triglyceride having a fatty acid residue X having x carbon atoms at the 1st to 3rd positions of glycerin, and the fatty acid residues X are the same as each other. Here, the carbon number x is an integer selected from 14 to 22, preferably an integer selected from 16 to 22, more preferably an integer selected from 16 to 20, and further preferably selected from 16 to 18. Integer. The fatty acid residue X may be a saturated or unsaturated fatty acid residue. Specific examples of the fatty acid residue X include residues such as myristic acid, palmitic acid, stearic acid, arachidic acid, and behenic acid. However, it is not limited to this. The fatty acid residue X is more preferably palmitic acid, stearic acid, arachidic acid and behenic acid, even more preferably palmitic acid, stearic acid, and arachidic acid, and even more preferably, palmitic acid and stearic acid. is there. The content of the XXX type triglyceride contained in the fat or oil having a melting point of 50 ° C. or more is, for example, 50% by mass or more, preferably 60% by mass or more, more preferably 70% by mass when the total mass of the fat and oil is 100% by mass. The lower limit is at least 80% by mass, more preferably at least 80% by mass, for example, at most 100% by mass, preferably at most 99% by mass, more preferably at most 95% by mass. One or more types of XXX-type triglycerides can be used, preferably one or two types, and more preferably one type. When there are two or more types of XXX type triglycerides, the total value is the content of the XXX type triglycerides.

  The fat or oil having a melting point of 50 ° C. or more may contain other triglycerides other than the XXX type triglyceride. Other triglycerides may be a plurality of types of triglycerides, and may be synthetic fats or oils. Examples of natural fats and oils include palm oil, cocoa butter, sunflower oil, rapeseed oil, soybean oil, cottonseed oil and the like. Assuming that the fat or oil having a melting point of 50 ° C. or more is 100% by mass, there is no problem even if triglycerides other than the XXX type triglyceride are contained in 1% by mass or more, for example, about 5 to 50% by mass. The content of other triglycerides is, for example, preferably 0 to 30% by mass, more preferably 0 to 18% by mass, further preferably 0 to 15% by mass, and still more preferably 0 to 8% by mass.

  Fats and oils having a melting point of 50 ° C. or higher and having XXX-type triglyceride are melted, kept at a specific cooling temperature, and solidified by cooling, so that they can be sprayed or specially crushed by a crusher such as a mill. A powdery fat or oil crystal (fat or fat powder) can be obtained without using the processing means of (1). More specifically, (a) preparing an oil or fat having a melting point of 50 ° C. or higher and having XXX type triglyceride, and optionally heating the oil or fat obtained in step (a) as step (b) Then, the triglyceride contained in the fat or oil is melted to obtain the fat or oil in a molten state, and (d) the fat or oil in the molten state is cooled and solidified to contain a two-chain β-type crystal, and the particle shape of the fat or oil is reduced. To obtain powdery fat crystals (fat powder).

In the cooling in the step (d), for example, the fats and oils in a molten state are cooled at a temperature lower than the melting point of the fats and oils, and
Cooling temperature (° C) = carbon number x × 6.6-68
The cooling is performed at a temperature equal to or higher than the cooling temperature obtained from By cooling in such a temperature range, fine β-type fats and oils crystals can be formed, so that fats and oils crystal powder can be easily obtained.

  Further, between the above steps (b) and (d), optional steps for promoting powder generation as step (c), for example, (c1) a seeding step, (c2) a tempering step, and / or (c3) A pre-cooling step may be included. Further, the fat and oil crystal powder obtained in the step (d) may be obtained by the step (e) of pulverizing a solid obtained after cooling in the step (d) to obtain powdery fat and oil crystals.

  In the above step (e), the solid obtained after cooling is obtained by applying a known pulverizing means such as a hammer mill or a cutter mill to a powdery fat or oil crystal having an average particle size of 30 μm or less (oil or fat crystal powder or Fats and oils powder) can also be produced. In the above step, the fat or oil having a melting point of 50 ° C. or more and having XXX-type triglyceride is prepared in steps (a) to (f) in the state of a fat or oil composition containing 0 to 15% by mass of components other than the above-described fat and oil. It may be subjected to (e) or may be mixed with other components other than the above-described fats and oils to obtain a powdered fat and oil composition after being made into β-type fat and oil crystal powder.

An oil or fat powder having a melting point of 50 ° C. or more and a two-chain β-type crystal, which can be suitably used in the plastic oil and fat composition of the present invention obtained as described above, and has XXX type triglyceride The powder preferably has a plate-like shape having an aspect ratio of 1.2 or more or an aspect ratio (2) of 2.5 or more, and has a loose bulk density of 0.05 to 0.6 g / cm ³ . Note that the powdered fat composition containing the fat powder is described in detail in the specification of PCT / JP2016 / 072122 (Japanese Patent Application No. 2015-187271) previously filed by the present applicant, and thus the details are omitted. The content of said application is incorporated herein.

<Plastic fat composition>
The plastic fat composition of the present invention contains the powder fat composition containing the above-mentioned fat powder having a melting point of 50 ° C. or more and a two-chain β-type crystal. The content of the fat and oil powder having a melting point of 50 ° C. or more and a two-chain length β-form crystal in the fat and oil contained in the plastic fat composition of the present invention is preferably 0.5 to 30% by mass, more preferably The content is 1 to 20% by mass, more preferably 2 to 13% by mass, and even more preferably 3 to 8% by mass. When the content of the fat or oil powder having a melting point of 50 ° C. or more and a two-chain-length β-type crystal contained in the plastic fat or oil composition of the present invention is within the above range, the fat or oil contained in the plastic fat or oil composition has a two-chain length. It is easy to obtain stable β-form polymorph.

  The plastic fat composition of the present invention may be a substantially anhydrous substance having a water content of 3% by mass or less, or may be an emulsion. The emulsion may be a water-in-oil emulsion, an oil-in-water emulsion, or a complex emulsion. However, the plastic fat composition of the present invention is preferably an anhydride. Specific examples of the plastic fat composition of the present invention include, for example, margarine and shortening.

  The content of the fat or oil contained in the plastic fat composition of the present invention may be appropriately set according to the specific characteristics of the plastic fat composition including the fat or fat contained in the powdered fat composition. For example, in the case of shortening, the content of fats and oils is preferably 80 to 100% by mass, more preferably 90 to 100% by mass, and still more preferably 95 to 100% by mass. In the case of margarine (water-in-oil type emulsion), the content of fats and oils is preferably 40 to 96% by mass, more preferably 60 to 92% by mass, and further preferably 70 to 88% by mass.

  As a source of the fat or oil contained in the plastic fat or oil composition of the present invention, except for a fat or oil powder having a melting point of 50 ° C. or more and a two-chain length β-type crystal contained in the powdered fat or oil composition, a normal edible fat and / or Oils and fats contained in oil-containing food materials can be used. Specific examples of edible oils and fats include soybean oil, rapeseed oil, cottonseed oil, safflower oil, sunflower oil, rice oil, corn oil, sesame oil, olive oil, palm oil, palm fractionated oil (palm olein, palm super olein, palm middle melting point) , Palm stearin, etc.), shea butter, shea fractionated oil, monkey fat, monkey fractionated oil, illipe fat, cocoa butter, coconut oil, palm kernel oil, lard, beef tallow, milk fat, etc., and mixed oils and processed fats ( Hydrogenated oil, transesterified oil, fractionated oil, etc.). These edible oils and fats may be used alone or in combination of two or more.

  The fat and oil crystals of the fat and oil contained in the plastic fat composition of the present invention have a two-chain β-type crystal structure. Here, the two-chain-length β-type crystal is as described above. The degree to which the crystals of the fats and oils contained in the plastic fat and oil composition of the present invention have a two-chain-length β-type crystal structure is, as described above, a characteristic peak of β-type 2θ = 19 ° in the X-ray diffraction measurement. Ratio of peak intensity around (4.6 °) to peak intensity around 2θ = 21 ° (4.2 °), which is a characteristic peak of α-type (and β′-type): 19 ° / (19 ° + 21 °) By calculating [4.6 ° / (4.6 ° + 4.2 °)], it can be used as an index indicating the abundance of β-type crystals. In the present invention, the peak intensity ratio is preferably 1. However, the lower limit of the peak intensity ratio is, for example, 0.4 or more, preferably 0.5 or more, more preferably 0.6 or more, still more preferably 0.7 or more, still more preferably 0.75 or more, and most preferably. May be 0.8 or more. When the peak intensity ratio is 0.4 or more, it can be considered that more than 50% by mass of the fat and oil crystals is β-type. The upper limit of the peak intensity ratio is preferably 1, but 0.99 or less, 0.98 or less, 0.95 or less, 0.93 or less, 0.90 or less, 0.85 or less, 0.80 or less, etc. It may be. The peak intensity ratio can be any of the above lower limit and upper limit, or any combination.

  The fats and oils contained in the plastic fat and oil composition of the present invention preferably contain HHO, OHO and HOH. Hereinafter, H, O, HHO, OHO, and HOH mean the following. H is a saturated fatty acid having 16 to 24 carbon atoms, preferably a saturated fatty acid having 16 to 18 carbon atoms. H is preferably straight-chain. O is oleic acid. HHO means asymmetric triacylglycerol containing OHH. That is, HHO is a triacyl ester in which oleic acid (O) is substituted at the 1- or 3-position of glycerol with a saturated fatty acid (H) having 16 to 24 carbon atoms at the 1- and 2-positions. Glycerol. OHO is triacylglycerol in which oleic acid (O) is ester-linked to glycerol at the first and third positions and a saturated fatty acid (H) having 16 to 24 carbon atoms is at the second position. HOH is triacylglycerol in which oleic acid (O) is located at the 2-position of glycerol, and saturated fatty acids (H) having 16 to 24 carbon atoms are ester-linked at the 1- and 3-positions.

  The fat or oil contained in the plastic fat or oil composition of the present invention preferably contains the above-mentioned HHO, OHO and HOH in a total of 10 to 60% by mass. The total content of HHO, OHO and HOH (HHO + OHO + HOH) is more preferably 20 to 50% by mass, and further preferably 25 to 45% by mass. The fat or oil contained in the plastic fat or oil composition of the present invention preferably has a mass ratio of HOH content (HOH / (HHO + OHO)) to the total amount of HHO and OHO (HHO + OHO) of 0.3. ~ 2.0. HOH / (HHO + OHO) is more preferably 0.5 to 1.8, further preferably 0.7 to 1.5, and still more preferably 0.8 to 1.2. When HHO + OHO + HOH and / or HOH / (HHO + OHO) of the fats and oils contained in the plastic fat composition of the present invention is within the above range, the fat and oil crystals of the fats and fats contained in the plastic fat composition tend to take the two-chain-length β type. .

  In addition, each triacylglycerol content contained in fats and oils can be measured by the gas chromatography method (for example, based on AOCS Ce5-86). The symmetry of triacylglycerols is described, for example, in J. Am. High Resol. Chromatogr. , 18, 105-107 (1995). The content of each fatty acid constituting the fat or oil can be measured by a gas chromatography method (for example, according to AOCS Ce1f-96). In addition, the iodine value of fats and oils can be measured according to “2.3.4.1-1996 Iodine value (Wijs-cyclohexane method)” of “Standard fat and oil analysis test method” edited by The Japan Oil Chemists' Society.

  The fat or oil contained in the plastic fat or oil composition of the present invention preferably contains a non-lauric transesterified fat or oil. Here, the non-lauric transesterified fat or oil has a lauric acid content of less than 10% by mass (preferably 0 to 5% by mass, more preferably 0 to 2% by mass) in the total amount of the constituent fatty acids of the transesterified fat or oil. A transesterified fat. The non-lauric transesterified fat preferably contains a non-lauric fat as a raw material fat for transesterification. Non-lauric fats and oils are fats and oils in which the content of fatty acids having 16 or more carbon atoms in the total amount of fatty acids constituting the fat or oil exceeds 90% by mass. Examples are rapeseed oil, high erucic acid rapeseed oil, soybean oil, corn oil, safflower oil, cottonseed oil, sunflower oil, cocoa butter, shea butter, monkey fat, palm oil, etc. Is mentioned. As the non-lauric fats and oils contained in the raw fats and oils for transesterification, one or more kinds selected from these may be used.

  The non-lauric transesterified fat preferably contains a palm fat as a raw material fat. Here, the palm fats and oils are fats and oils derived from palm oil. Examples of the palm-based fats and oils include palm oil, fractionated oil of palm oil, and processed oil thereof (one that has been subjected to at least one of hardening, transesterification, and fractionation). More specifically, palm olein (palm super olein), a two-stage fractionated oil of palm olein, palm stearin, and palm olein, which are one-stage fractionated oil, and palm olein, a two-stage fractionated oil of palm mid fraction, palm stearin (Soft palm) and palm stearin (hard stearin). When the non-lauric transesterified fat uses a palm fat as a raw fat for transesterification, the content of the palm fat in the raw fat is preferably 20 to 100% by mass, more preferably 40 to 100% by mass. It is 100% by mass, more preferably 60 to 100% by mass.

  In the non-lauric transesterified fat, the content of lauric acid in the total amount of the constituent fatty acids of the transesterified fat is less than 10% by mass (preferably 0 to 5% by mass, more preferably 0 to 2% by mass), As long as it has been subjected to transesterification, other processing such as separation and hydrogenation may be repeated once or plural times before and after the transesterification. The non-lauric transesterified fat has an iodine value of preferably 20 to 80, more preferably 30 to 75, further preferably 40 to 70, and still more preferably 45 to 65.

  The fat or oil contained in the plastic fat or oil composition of the present invention may contain a fat or oil rich in HOH having a HOH content of 25% by mass or more (hereinafter also referred to as HOH fat or oil). The HOH content of the HOH fat is preferably 35% by mass or more, and more preferably 45% by mass or more. The upper limit of the HOH content contained in the HOH fat is not particularly limited. However, the upper limit of the HOH content contained in the HOH fat is preferably 90% by mass or less, more preferably 80% by mass or less, and further preferably 70% by mass or less. The lower limit and the upper limit of the HOH content of the HOH oil and fat may be arbitrarily combined with the above numerical values.

  More specifically, the HOH fats and oils include animal and vegetable fats and oils such as cocoa butter, palm oil, shea butter, monkey fat, lippe fat, kokum fat, arambrackia fat, moller fat, mango kernel oil, beef tallow, and the like. Processed fats and oils obtained by applying one or more kinds of treatments such as mixing, fractionation, transesterification, and hydrogenation are exemplified. HOH fats are also known to be the first and third choice between palmitic acid, stearic acid or their lower alcohol esters and high oleic oils such as high oleic sunflower oil, as is already known. After a transesterification reaction using a sex lipase preparation, an oil or fat obtained by fractionating as necessary may be used. One or more HOH fats and oils may be used. The HOH fat is preferably a HOH-rich fraction of palm oil and / or palm fat. The HOH-rich fraction of palm-based fats and oils includes a palm middle melting point fraction. The iodine value of HOH fats and oils is preferably 30 to 65, more preferably 35 to 60, and still more preferably 40 to 55.

  The content of the non-lauric ester transesterified fat in the fat or oil contained in the plastic fat or oil composition of the present invention is preferably 40 to 87% by mass, more preferably 50 to 82% by mass, and still more preferably 55 to 82% by mass. ８０80% by mass. Moreover, the content of HOH fats and oils in the fats and oils contained in the plastic fat composition of the present invention is preferably 10 to 57% by mass, more preferably 15 to 47% by mass, and still more preferably 20 to 42% by mass. % By mass. In the fats and oils contained in the plastic fat and oil composition of the present invention, the content ratio of the non-lauric transesterified fat and HOH fat and oil is preferably 90:10 to 40:60, and more preferably 85:15. 50:50, more preferably 80:20 to 55:45. When the content or content ratio of the non-lauric transesterified fats and HOH fats and oils in the fats and oils contained in the plastic fat composition of the present invention is within the above range, the adjustment of HOH / (HHO + OHO) is easy. It is.

  The fat or oil contained in the plastic fat or oil composition of the present invention may contain a liquid oil which is liquid or fluid at 10 ° C. The liquid oil is more preferably liquid or fluid at 5 ° C. Examples of liquid oils include soybean oil, rapeseed oil, high oleic rapeseed oil, cottonseed oil, sunflower oil, high oleic sunflower oil, safflower oil, high oleic safflower oil, corn oil, rice oil, and the like. The content of the unsaturated fatty acid in the liquid oil is preferably 70% by mass or more, more preferably 80% by mass or more based on the total amount of fatty acids constituting the fat or oil. The content of the liquid oil in the fats and oils contained in the plastic fat composition of the present invention is preferably 0 to 40% by mass, more preferably 0 to 30% by mass, and still more preferably 0 to 20% by mass. is there. The plastic fat composition of the present invention may also contain milk-derived fats (such as butter, milk fat and fractionated oil thereof). The content of milk-derived fats and oils in the fats and oils contained in the plastic fat composition of the present invention is preferably 0 to 30% by mass, more preferably 0 to 20% by mass, and still more preferably 0 to 15% by mass. %.

  ADVANTAGE OF THE INVENTION The plastic fat composition of this invention can reduce content of the trans fatty acid which concerns on health. The trans fatty acid content of the plastic fat composition of the present invention is preferably 0 to 5% by mass, more preferably 0 to 3% by mass, and still more preferably 0 to 1% by mass.

  In the plastic fat composition of the present invention, as components other than fats and oils, components which are usually blended in plastic fat compositions such as shortening and margarine can be blended. Other components include water, emulsifiers such as lecithin, glycerin fatty acid ester, and sucrose fatty acid ester, thickening stabilizers such as gelatin, guar gum, xanthan gum, salting agents such as salt and potassium chloride, acetic acid, lactic acid, and gluconic acid. Acidulants, sugars, sugar alcohols, sweeteners such as stevia and aspartame, colorants such as β-carotene, caramel and red koji pigments, tocopherols, tea extracts (such as catechin) and antioxidants such as rutin, wheat Vegetable proteins such as protein and soy protein, dairy products such as whole milk powder, skim milk powder and whey protein, eggs and processed eggs, flavors, seasonings, pH adjusters, food preservatives, fruits, juices, coffee, nuts Pastes, spices, cacao mass, cocoa powder, cereals, beans, vegetables, meat and seafood, etc. Food materials and food additives, and the like.

<Production method of plastic fat composition>
The method for producing a plastic fat composition of the present invention includes a powder fat composition containing a fat powder having a melting point of 50 ° C. or higher and a two-chain β-type crystal, and any method capable of forming a plasticized state, Not limited. However, as one of preferred embodiments, a melting point of 50 ° C. or more and a two-chain length β are added to a base fat / oil composition in a molten state before plasticization (crystallization) (hereinafter also referred to as a base fat / oil composition). A method of mixing or adding a powdered fat or oil composition containing a fat or oil powder having a type crystal and plasticizing (crystallizing) by cooling is exemplified. The temperature of the base fat composition in the molten state is preferably the melting point of the fat or oil powder contained in the powdered fat or oil composition −5 ° C. or less, more preferably the melting point of the fat or oil powder contained in the powdered fat or oil composition −10 ° C. It is below ° C. For example, when the melting point of the fat and oil powder contained in the powder and fat composition is 55 ° C, the temperature of the base fat and oil composition in a molten state is preferably 50 ° C or less. The mixing ratio of the powdered fat and oil composition containing the fat and oil powder having a melting point of 50 ° C. or more and the two-chain-length β-type crystal and the base fat and oil composition is such that the fat and oil powder having a melting point of 50 ° C. or more and the two-chain-length β-type crystal And preferably 0.5: 99.5 to 30:70, more preferably 1:99 to 20:80, more preferably 1:99 to 20:80, based on the weight of the fat and oil contained in the base fat and oil composition. 2:98 to 13:87, and more preferably 3:97 to 8:92.

  When the plastic fat composition of the present invention is shortened, the base fat composition is typically. It is a melted oil / fat composition containing an oil / fat and, if necessary, an emulsifier and the like. Further, in the case of margarine, typically, an emulsified oil / fat composition obtained by emulsifying an aqueous solution containing water and, as needed, a food additive material, in a melted oil / fat composition containing an oil / fat and an emulsifier as needed. Things. The base fat composition may be sterilized as needed. After mixing and stirring a powdered fat or oil composition containing a fat or oil powder having a melting point of 50 ° C. or more and a two-chain-length β-type crystal in a base fat or oil composition in a molten state before plasticization (crystallization), Cooling plasticization performed in the production of a normal plastic fat composition may be performed. For cooling plasticization, a closed-type continuous tube cooler, for example, a cooling plasticizing device such as a voter, a combinator, or a perfector can be used. The cooling condition may be set, for example, higher than -20 ° C / min. However, the plastic fat composition of the present invention may be cooled and plasticized under slower cooling conditions. The slower cooling condition may be set to, for example, -5 ° C / min or less or -20 ° C / min or more, or may be set weaker than -5 ° C / min.

  The temperature of the plastic fat composition of the present invention may be adjusted after cooling and plasticizing. More specifically, the plasticized oil-and-fat composition cooled and plasticized is preferably at a temperature of 15 to 35 ° C, more preferably at a temperature of 18 to 32 ° C, and still more preferably at a temperature of 20 to 28 ° C. . The temperature control time may be set to any time, for example, 3 hours or more, 6 hours or more, 12 hours or more, 24 hours or more, 36 hours or more, 48 hours or more. The upper limit of the temperature control time is not particularly set. However, it may be set to an arbitrary time of 240 hours or less, 168 hours or less, 120 hours or less, 72 hours or less. In the summer, the temperature may be changed by leaving it indoors. By controlling the temperature, the two-chain β-type crystal structure of the fat or oil contained in the plastic fat or oil composition of the present invention can be further strengthened.

<Features and uses of plastic fat composition>
The plastic fat composition of the present invention has good workability in confectionery and baking. In addition, since the fats and oils contained in the plastic fat and oil composition have a stable polymorphism of β-form with two chain lengths, there is little change in physical properties during storage (good workability is maintained). The plastic fat composition of the present invention is, for example, for kneading or folding into bakery dough such as confectionery or bread, for spreading or coating on bakery foods, and for creams such as anhydrous cream and butter cream. Can be suitably used. In particular, it can be suitably used for kneading in bakery dough.

  Next, the present invention will be described in more detail by way of examples. However, the present invention is not limited to these. Also. In the following, "%" indicates mass% unless otherwise specified.

<Analysis method>
-Trans fatty acid The trans fatty acid content of fats and oils was measured by the gas chromatography method according to AOCS Ce1f-96.
-Triglyceride composition Each triacylglycerol content of fats and oils was measured by the gas chromatography method (based on AOCS Ce5-86). The symmetry of triacylglycerol was measured by a silver ion column chromatography method (according to J. High Resol. Chromatogr., 18, 105-107 (1995)).
X-ray diffraction measurement Using an X-ray diffractometer Ultima IV (manufactured by Rigaku Corporation), using a CuKα (λ = 1.542 °) as a radiation source, using a filter for Cu, an output of 1.6 kW, and an operation angle of 0.96 to The measurement was performed at 30.0 ° and a measurement speed of 2 ° / min. According to this measurement, when only a peak near 4.6 ° and no peak near 4.1 to 4.2 ° were present, it was determined that all the fat components were β-type fat crystals.
From the result of the X-ray diffraction measurement, the peak intensity ratio = [intensity of β-type characteristic peak (2θ = 19 ° (4.6 °)) / (α-type (and β′-type) characteristic peak (2θ = 21 ° (4.2 °)) + β-type characteristic peak intensity (2θ = 19 ° (4.6 °))] was measured as an index indicating the abundance of β-type fat and oil crystals.

-Loose bulk density The loose bulk density (g / cm ³ ) of the powdered fat or oil composition obtained in the examples or the like is obtained by placing a powdered oil or fat in a measuring cylinder having an inner diameter of 15 mm x 25 mL from about 2 cm above the upper open end of the measuring cylinder. The composition was dropped and loosely filled, the filled mass (g) was measured, the volume (mL) was read, and the mass (g) of the powdered oil and fat composition per mL was calculated.
-Aspect ratio: Observed directly with a scanning electron microscope S-3400N (manufactured by Hitachi High-Technologies Corporation), and using the image analysis type particle size distribution measurement software (Mac-View manufactured by Mountech Co., Ltd.) The length in the major axis direction and the length in the minor axis direction were measured and measured as an average value of the measured numbers.
・ Aspect ratio (2)
(A) Aspect ratio of particles of powdered fat composition A (paragraph 0056) of the present invention (2)
Since the powdered oil / fat composition A of the present invention has a plate-like shape, it is difficult to measure the particle thickness from a micrograph. Therefore, the thickness of the particles was measured from a micrograph of the powdered oil or fat composition A attached to the glass beads. As the value of the major axis, an average particle diameter (d50) measured based on a laser diffraction scattering method was used.
Specifically, the powder and fat composition A is added to and mixed with glass beads (manufactured by AS ONE Corporation, model number BZ-01, dimensions 0.105 to 0.125 mmφ), so that the powder and fat composition A Was attached, and the appearance was photographed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation). The length in the vertical direction from the adhering surface of one particle of the powdered oil and fat composition A adhered to the glass bead surface was measured as the thickness of the particle, and the average value of the thickness of a total of 25 particles was obtained. The value was used as the value of the thickness of the particles of the powdered oil and fat composition A.
FIG. 2 is one of electron micrographs (1500 times) used for measuring the thickness of the particles of the powdered oil composition A. In this photograph, the length of the portion (two places) indicated by a straight line in the photograph is shown. The thickness (the length in the vertical direction from the adhering surface of the particles adhering to the glass bead surface) was measured as the thickness of the particles of the powdered oil / fat composition A.
As the value of the major axis, an average particle diameter (d50) measured based on the laser diffraction scattering method described above was used.
The aspect ratio (2) [= major axis / thickness] was determined from the values of the major axis and the thickness of the particles of the powdered oil / fat composition A thus measured.
(A) Aspect ratio of particles of powdered fat or oil composition a (paragraph 0056) (2)
The powder and fat composition a is almost spherical, and the major axis and thickness of each particle can be directly measured from an electron micrograph of the particle. Then, the major axis and the thickness (length and width) were measured for each particle in a photograph taken with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation). The aspect ratio (2) was determined for each particle, and the average value of the aspect ratios (2) of a total of 20 particles was defined as the particle aspect ratio (2).
・ Average particle size (d50)
The particle size distribution was measured by a particle size distribution analyzer (Microtrac MT3300ExII manufactured by Nikkiso Co., Ltd.) based on the laser diffraction scattering method (ISO133201, ISO9276-1). In addition, the measured average particle diameter is a value of the diameter (d50) in which, when the powder is divided into two from a certain particle diameter, the larger side and the smaller side have the same amount.

<Preparation of powdered oil and fat composition>
The following powdered oil and fat compositions A and a were prepared.
(1) Powder and fat composition A
25 ° C. of 25 g of a triglyceride having a stearic acid residue (carbon number: 18) at the 1st to 3rd positions (XXX type: 79.1% by mass, rapeseed extremely hardened oil, melting point: 67.3 ° C., manufactured by Yokoseki Yushi Kogyo Co., Ltd.) At 0.5 ° C. for 0.5 hour to completely melt, and cooled in a 60 ° C. constant temperature bath for 12 hours to form a solid having an increased volume of voids. After crystallization was completed, room temperature (25 ° C.) ). The resulting solid is mechanically pulverized to obtain powdery fat crystals (loose bulk density: 0.2 g / cm ³ , aspect ratio: 1.6, aspect ratio (2): 4.6, average particle size: 8.) 0 μm, X-ray diffraction measurement diffraction peak: 4.6 °, peak intensity ratio: 0.89). This fat and oil powder was used as a powder and fat composition A.
(2) Powder and fat composition a
A powdery fat crystal (loose bulk density: 0.5 g / cm ³ , aspect ratio: 1.1, aspect ratio (2)) obtained by spray cooling with a spray cooler using palm extremely hardened oil (melting point: 58 ° C.) as a raw material. 1.1, an average particle size of 162 μm, a diffraction peak of X-ray diffraction measurement: 4.2 °, and a peak intensity ratio of 0.03). This fat and oil powder was used as a powder and fat composition a.

<Preparation of edible oil and fat>
(1) Palm oil (Nisshin Oillio Co., Ltd., iodine value 52, HOH content 31.7% by mass) was used. It may be abbreviated as PMO.
(2) Palm medium melting point fraction (Nisshin Oillio Group Co., Ltd., iodine value 45, HOH content 50.4% by mass) was used. It may be abbreviated as PMF.
(3) Random transesterification using sodium methoxide as a catalyst was applied to palm olein (Nisshin Oillio Group Co., Ltd., iodine value 56). The obtained transesterified fat was purified according to a conventional method and used. It may be abbreviated as IEPL.
(4) Rapeseed oil (manufactured by Nisshin Oillio Group, unsaturated fatty acid content: 93% by mass) was used. It may be abbreviated as RSO.
(5) Rapeseed extremely hardened oil (Iodine value 1 manufactured by Yokoseki Yushi Kogyo Co., Ltd.) was used. It may be abbreviated as FHRSO.

<Preparation of plastic fat composition>
According to the following production procedures 1 to 4, the plastic fat compositions (shortenings) of Examples 1 to 12 were produced according to the formulations shown in Tables 1 to 3. The manufactured plastic fat composition of Examples 1-12 was adjusted at 25 degreeC for 24 hours. The X-ray diffraction images of the plastic oil composition before and after temperature control were measured, and the peak intensity ratio (peak intensity of β-type (4.6 °) / (peak intensity of α-type and β′-type (4.2 °) + β-type ( The peak intensity of 4.6Å) was determined. The results are shown in Tables 1 to 3.

(Manufacturing procedure)
1. The base fat composition was mixed according to the composition of the base fat composition shown in Tables 1 to 3, and melted at 80C.
The temperature of the base fat composition melted in 2.1 was adjusted to 45 ° C, and the powder fat composition was added according to Tables 1 to 3.
After adding the powdered oil / fat composition in 3.2, the mixture was stirred with a mixer to obtain a dispersion in which the powdered oil / fat composition was sufficiently dispersed.
The dispersion of 4.3 was cooled and plasticized (cooling rate −10 ° C./min) with a small combinator to obtain shortening.

(Production and evaluation of roll bread)
According to the following procedure, a craftsman with 23 years of bread craftsmanship produced roll bread. That is, 700 g of flour, 30 g of raw yeast, 150 g of whole egg, and 270 g of water were put into a mixer bowl and kneaded at a low speed for 2 minutes and at a medium speed for 2 minutes. A medium seed having a kneading temperature of 25 ° C was obtained. The resulting sponge was fermented at 28 ° C. for 2 hours. The fermented medium seed was put into a mixer bowl, and 300 g of strong powder, 120 g of white sugar, 17 g of salt, 40 g of skim milk powder, and 180 g of water were further put, and kneaded at low speed for 2 minutes and at medium speed for 5 minutes. Here, 150 g of the plastic oil / fat composition obtained in Example 3 and Example 12 was added as kneading fat, and kneaded at a low speed for 2 minutes and at a medium speed for 5 minutes to obtain a dough having a kneading temperature of 28 ° C. I got After taking the floor time for 30 minutes, it was divided into 45 g, then, after taking the bench time for 30 minutes, table roll molding was performed. Furthermore, the final fermentation was carried out by placing in a proofer at 38 ° C. and a relative humidity of 85% for 60 minutes. After the final fermentation, the whole egg was applied to the upper surface and placed in an oven at 210 ° C on the upper heat and 200 ° C on the lower heat. The mixture was baked in an oven for 9 minutes and 30 seconds to obtain a roll bread in which the plastic fat compositions of Examples 3 and 12 were kneaded with dough.
The plastic fat composition of Example 3 was easily kneaded into the dough as compared with Example 12, and the workability was clearly good. In addition, the roll bread manufactured using the plastic fat composition of Example 3 has a finer texture of the inner layer and a soft texture as compared with the roll bread manufactured using the plastic fat composition of Example 12. there were.

Claims (11)

A plastic fat composition containing a powdered fat composition,
The powdered fat or oil composition contains a fat or oil powder having a melting point of 50 ° C. or more and a two-chain length β-type crystal,
The fat and oil crystals of the fat and oil contained in the plastic fat and oil composition contain a two-chain β-form,
The said plastic fat composition.   The plastic fat composition according to claim 1, wherein a ratio of the fat powder to the fat contained in the plastic fat composition is 0.5 to 30% by mass. The mass ratio of the HOH content (HOH / (HHO + OHO)) to the total amount (HHO + OHO) of the HHO content and the OHO content of the fats and oils contained in the plastic fat composition is 0.3 to 2.0. The plastic fat composition according to claim 1.
Here, H, O, HHO, OHO and HOH mean the following.
H: a saturated fatty acid having 16 to 24 carbon atoms O: oleic acid HHO: oleic acid (O) at the 1 or 3 position of glycerol, 2 or 3 position, or 16 to 24 carbon atoms at the 1 and 2 positions Triacylglycerol OHO in which saturated fatty acid (H) is ester-bonded: oleic acid (O) in the first and third positions of glycerol, and triacylglycerol HOH in which saturated fatty acid (H) having 16 to 24 carbon atoms is ester-bonded in the second position : Triacylglycerol in which oleic acid (O) is in the 2-position of glycerol, and saturated fatty acid (H) having 16 to 24 carbon atoms is ester-bonded in the 1- and 3-positions   The plastic fat composition according to any one of claims 1 to 3, wherein the total content of HHO, OHO, and HOH in the fat contained in the plastic fat composition is 10 to 60% by mass.   The plastic fat composition according to any one of claims 1 to 4, wherein the fat powder has an average particle size of 50 µm or less.   The plastic fat composition according to any one of claims 1 to 5, wherein the particles of the fat powder have a plate-like shape having an aspect ratio (2) of 2.5 or more.   The fat and oil powder contains one or more XXX-type triglycerides having a fatty acid residue X having a carbon number x at positions 1 to 3 of glycerin, wherein the carbon number x is an integer selected from 14 to 22. Item 7. The plastic fat composition according to any one of Items 1 to 6. The plastic fat composition according to any one of claims 1 to 7, wherein the loose bulk density of the powder fat composition is 0.05 to 0.6 g / cm ³ .   A food comprising the plastic fat composition according to claim 1.   After dispersing a fat and oil composition containing a fat and oil powder having a melting point of 50 ° C. or more and a two-chain β-form crystal in a plastic fat and oil composition dough in a molten state of less than 50 ° C., the plastic fat and oil composition is cooled. Manufacturing method.   A crystallization accelerator for a plastic fat composition comprising, as an active ingredient, a fat powder having a melting point of 50 ° C. or more and a two-chain β-form crystal.

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