JP2019135966A - Chocolate and production method therefor - Google Patents

Abstract

To suppress weakening of snapping properties in a chocolate while keeping an automatic restoration maximum temperature thereof as high as possible, and in particular, make an automatic restoration maximum temperature 37-45°C.SOLUTION: This problem is solved by adding, to a molten chocolate material containing an emulsifier having an HLB value of at most 7, a powdered chocolate seed agent that contains a stabilization crystal of a triglyceride (BOB) which has behenic acid at positions 1 and 3 and oleic acid at a position 2.SELECTED DRAWING: None

Description

The present invention relates to a method for producing tempering chocolates, and more particularly to a method for producing seed tempering.

The tempering operation of chocolate is an important operation during the manufacture of chocolate, and when the chocolate is solidified, fine crystal nuclei are generated, the mold release of the solidified product from the mold is improved, and the product has a good gloss It is done to obtain products that retain properties such as gloss and texture. However, this operation is not simple, and various methods for omitting tempering have been tried.

The first is seed tempering, which uses StOSt (triglyceride with stearic acid at positions 1 and 3 as the main component and triglyceride at position 2 and oleic acid) as the main component. (Patent Document 1). This is a simple method in which tempering can be performed simply by adding about 0.5% by weight of the shortening to chocolate at about 30 ° C. and stirring, but gradually after the shortening is added due to the temperature of 30 ° C. There was a problem that fat and oil crystals in chocolate were precipitated and thickening occurred, and in some cases, workability as chocolate was very poor.

In addition, a chocolate additive (hereinafter referred to as “BOB seed agent”) containing stabilized crystals of fats and oils mainly composed of triglyceride (hereinafter referred to as “BOB”) in which behenic acid is located at positions 1 and 3 and oleic acid at position 2 is used. ) Is added to chocolate as crystal nuclei (Patent Document 2). In this method, 3% by weight of a BOB seed agent is added to a chocolate dough usually having a temperature of about 35 ° C. The BOB seed contains 50% by weight of sugar as an excipient. The reason why it is necessary to add a relatively large amount of the seed agent of 3% by weight is that a fat crystal having a function of simplifying tempering in the seed agent partially dissolves in the chocolate and loses its function. .

In general, chocolate containing only cocoa butter contained in cacao beans as fat and oil has a heat-resistant temperature of cocoa butter of about 31 ° C. Therefore, in summer in Japan and in hot regions near the equator, There is a problem that fats and oils dissolve. When the melted chocolate is re-solidified as it is, that is, without crystal nuclei, fat bloom (referred to as a phenomenon in which white fat crystals are formed on the chocolate surface, hereinafter referred to as “bloom”) occurs. However, as in Patent Document 2, if the seed tempering is performed with the BOB seed agent, a part of the BOB seed remains undissolved even when exposed to such a high temperature, and is tempered by the remaining seed during re-solidification. Therefore, it becomes chocolate which does not generate bloom.
In this application, even if it is exposed to a high temperature that melts most of the fats and oils contained in chocolate for a certain period of time, it will automatically return to normal chocolate without blooming during subsequent cooling. The upper limit temperature that can be generated is defined as the auto return upper limit temperature. Incidentally, the automatic recovery upper limit temperature of chocolate prepared by adding 3% by weight of BOB seed agent and tempering is 37 ° C.

On the other hand, addition of a large amount of the BOB seed as described above is not always easy in terms of work in terms of uniform dispersibility in the chocolate dough. This is because the specific gravity of BOB seed agent and chocolate are greatly different, and in addition, powdered BOB seed agents are aggregated to cause lumps, which makes it difficult to be familiar with chocolate. Furthermore, the problem that the chocolate thickened temporarily by addition in a large amount was sometimes seen.

In Patent Document 3, if the BOB-containing fats and oils are previously blended in the chocolate dough in a melted state, the amount added can be reduced, the deterioration of workability associated with the above-mentioned large amount addition can be reduced, and the automatic recovery ability can be reduced. There is a description that will not be damaged.

On the other hand, there is a demand from the market for chocolate that can be automatically restored even when exposed to a high temperature of 37 ° C. or higher.

Japanese Patent Laid-Open No. 02-406 JP-A-63-240745 JP2007-259737

The present inventor, as in Patent Document 3 for the purpose of improving the automatic recovery upper limit temperature, blends BOB-containing fats and oils into the chocolate dough, or adds a large amount of BOB seed agent to an automatic recovery upper limit temperature of 37 ° C. Although it was able to improve more than this, on the other hand, it was found that the resulting chocolate had a reduced biting hardness at room temperature, that is, a reduced snapping property, and the crisp texture like chocolate was impaired. It was.
That is, an object of the present invention is to suppress a reduction in the snapping property of chocolate while increasing an automatic return upper limit temperature as much as possible. In particular, the upper limit temperature for automatic recovery is set to 37 to 45 ° C.

As a result of studies conducted by the present inventor to solve these problems, the reduction in snapping property is caused by the presence of a BOB component partly dissolved in a blended BOB-containing fat or BOB seed agent in chocolate fat. In view of this, the inventors have intensively studied a method for suppressing the decrease in snapping property by reducing the BOB component in the chocolate as much as possible while maintaining the upper limit temperature. As a result, when the chocolate dough contains an emulsifier having an HLB of 7 or less, even if the addition of the BOB seed agent is small, the knowledge of solving the problems of the present invention was obtained, and the present invention was completed. .

That is, the present invention
(1) Powdered chocolate seed agent containing stabilized crystals of triglyceride (BOB) in which 1,3-position is behenic acid and 2-position is oleic acid in a melted chocolate dough containing an emulsifier having an HLB of 7 or less A process for producing chocolates, characterized in that
(2) The method for producing chocolates according to (1), wherein the emulsifier is one or more selected from sorbitan fatty acid esters or sucrose fatty acid esters.
(3) The method for producing chocolate according to (1), wherein the emulsifier contains 50% by weight or more of a saturated fatty acid having 16 to 24 carbon atoms as a constituent fatty acid.
(4) The method for producing chocolate according to (1), wherein the chocolate dough further comprises an oil or fat containing 20 to 20% by weight of a saturated fatty acid having 20 to 24 carbon atoms as a constituent fatty acid. (5) The oil or fat is Hyelsin rapeseed oil. (4) The method for producing chocolates according to (4), which is at least one of the extremely hardened oil or the transesterified oil containing 20% by weight or more of behenic acid as a constituent fatty acid.
(6) Chocolates having an upper limit temperature of 37-45 ° C. that can be automatically restored, containing emulsifiers with HLB of 7 or less and BOB as essential components, and having undissolved BOB-stabilized crystals at 37 ° C.-45 ° C. Chocolate to do.
(7) A powdery chocolate seed containing BOB stabilization crystals is added to a melted chocolate dough containing an emulsifier having an HLB of 7 or less, and the chocolate is at 37 ° C. to 45 ° C. How to give automatic recovery ability.
(8) Chocolate containing BOB added in a powder state, an emulsifier having an HLB of 7 or less, and an extremely hardened oil of Hyelin rapeseed oil.
It is.

According to the method for producing chocolates of the present invention, it is possible to suppress the reduction in the snapping property of chocolate while increasing the maximum temperature for automatic recovery as much as possible, and the amount of expensive BOB seed agent added can be reduced. Since it becomes easy to disperse | distribute a seed agent uniformly, the problem of the thickening which may arise immediately after additive addition is solved. Furthermore, depending on the addition amount of various emulsifiers and fats and oils, it is possible to increase the upper limit of automatic return to 37 ° C. or higher.

Hereinafter, the present invention will be specifically described.
The emulsifier contained in the chocolate dough of the present invention needs to have an HLB value of 7 or less, preferably 6 or less, more preferably 5.5 or less, still more preferably 4.5 or less, and most preferably 3.5 or less. is there. Moreover, Preferably it is 0.5 or more, More preferably, it is 1 or more, More preferably, it is 2 or more. If the HLB value exceeds the upper limit, the solubility in fats and oils may be reduced, resulting in difficulty in dispersion. In addition, the automatic return upper limit temperature may not be sufficiently improved.
The emulsifier contained in the chocolate dough of the present invention is not particularly limited as long as the HLB value is 7 or less, but is preferably one or more emulsifiers selected from sorbitan fatty acid ester or sucrose fatty acid ester.
Even if the addition of the BOB seed agent is small due to the emulsifier content, the mechanism that can suppress the reduction of the snapping property of the chocolate while increasing the maximum temperature of the automatic recovery as much as possible is still unclear, but inevitably when seed tempering or when the chocolate is stored at high temperature The partial dissolution of the stable crystals in the BOB seed agent has the effect of reducing the emulsifier in the chocolate fat and oil, and it is considered that the upper limit of the automatic return is improved by increasing the residual seed amount. Moreover, since the BOB component which exists in the state melt | dissolved in chocolate fats and oils reduces on the contrary, it thinks that a snap fall is suppressed.

Moreover, it is preferable that the emulsifier contained in the chocolate dough of the present invention contains a saturated fatty acid having 16 to 24 carbon atoms in a constituent fatty acid of 50% by weight or more, preferably 70% by weight or more, and more preferably. Is 90% by weight or more. Further, behenic acid is preferably contained in the constituent fatty acid in an amount of 50% by weight or more, and more preferably 60% by weight or more. Further, stearic acid is preferably contained in the constituent fatty acid in an amount of 50% by weight or more, and more preferably 60% by weight or more.
The amount of the emulsifier contained in the chocolate dough of the present invention is preferably 0.05% by weight or more, more preferably 0.1% by weight or more, still more preferably 0.3% by weight or more, and most preferably 0.5%. % By weight or more, preferably 2% by weight or less, more preferably 1.5% by weight or less, still more preferably 1% by weight or less, and most preferably 0.8% by weight or less. If the amount of the emulsifier exceeds the upper limit, the chocolate may thicken during seed tempering. Moreover, since it becomes difficult to melt | dissolve in the fats and oils mix | blended with chocolate or chocolate, chocolate or fats and oils must be raised to high temperature, and it may lead to workability deterioration and chocolate quality deterioration. On the other hand, if it is less than the lower limit, the automatic return upper limit temperature may not be sufficiently improved.

The BOB seed agent of the present invention is in a powder form and contains BOB triglyceride. Moreover, excipient | fillers, such as sugar, may be included. The BOB content in the fat and oil contained in the BOB seed agent is preferably 40% by weight or more, more preferably 50% by weight or more, further preferably 60% by weight or more, and preferably 80% by weight or less, more preferably 70% by weight or less. It is. Oils and fats containing BOB triglycerides can be produced, for example, by applying a selective transesterification method utilizing enzyme activity. That is, fatty acids mainly containing behenic acid are obtained by curing, decomposing and rectifying, for example, Hyelin rapeseed oil, fish oil or whale oil, and the fatty acids or esters thereof are oils and fats mainly having oleic acid at the 2-position of glycerides. It is obtained by transesterification to selectively bind behenic acid to the 1,3-positions and, if necessary, fractional concentration.

The amount of the BOB seed agent added to the chocolate dough of the present invention is preferably 0.5% by weight or more, more preferably 1% by weight or more, still more preferably 1.2% by weight or more, and preferably 3. It is 5% by weight or less, more preferably 3% by weight or less, further preferably 2% by weight or less, and most preferably 1.8% by weight or less. If the added amount of the BOB seed exceeds 3.5% by weight, the biting hardness of the chocolate may be reduced, and the BOB seed may be difficult to disperse in the chocolate dough. The recovery upper limit temperature may not be sufficiently improved.

The chocolate dough of the present invention preferably contains fats and oils containing 20 to 24% by weight of saturated fatty acids having 20 to 24 carbon atoms as constituent fatty acids. In the present invention, the reason why the oil / fat is preferably contained is not clear, but it is considered that it has the effect of reducing the partial dissolution of stable crystals in the BOB seed agent as in the case of the emulsifier. Examples of the fats and oils include extremely hardened oils of Hyelsin rapeseed oil and transesterified oils containing behenic acid as constituent fatty acids, and examples of the latter include BOB-containing fats and oils and random transesterified oils. These oils and fats may be single oils or fats as exemplified above, but may be a mixture thereof. Here, the random transesterified oil may be a chemical catalyst or an enzyme catalyst.

When the fats and oils containing the saturated fatty acid having 20 to 24 carbon atoms of the present invention as a constituent fatty acid is 40% by weight or more is a BOB-containing fat or oil, the BOB content of the fat is preferably 40% by weight or more, more preferably 50% by weight. More preferably, it is 60% by weight or more, preferably 80% by weight or less, more preferably 70% by weight or less. Further, the content of the fats and oils in the chocolate dough is preferably 0.2% by weight or more, more preferably 0.5% by weight or more. Further, it is preferably 3% by weight or less, more preferably 2% by weight or less, still more preferably 1.5% by weight or less, and most preferably 1% by weight or less.
When the fat or oil containing the saturated fatty acid having 20 to 24 carbon atoms of the present invention as a constituent fatty acid is 40% by weight or more is a random transesterified oil, the behenic acid content in the fat or fatty acid is preferably 20% by weight or more. Preferably it is 25 weight% or more, More preferably, it is 30 weight% or more, Preferably it is 60 weight% or less, More preferably, it is 50 weight% or less. Further, the content of the fats and oils in the chocolate dough is preferably 0.2% by weight or more, more preferably 0.5% by weight or more. Further, it is preferably 3% by weight or less, more preferably 2% by weight or less, still more preferably 1.5% by weight or less, and most preferably 1% by weight or less.

When the fat and oil containing the saturated fatty acid having 20 to 24 carbon atoms of the present invention as a constituent fatty acid is 40% by weight or more is an extremely hardened oil of Hyelin rapeseed oil, its content is preferably 0.05% by weight or more, more preferably It is 0.07% by weight or more, more preferably 0.1% by weight or more, most preferably 0.2% by weight or more, and most preferably 0.3% by weight or more. Further, it is preferably 1.5% by weight or less, more preferably 1% by weight or less. If the content exceeds the upper limit, the mouthfeel of chocolate tends to deteriorate. In addition, the chocolate dough may thicken or tempering may be hindered during automatic recovery.

The ability to automatically return to high temperature storage exhibited in the chocolates of the present invention is such that even if the molded chocolate is held for 16 hours in a specific high temperature environment and then cooled and solidified, no bloom occurs thereafter (tempering is removed). A) defined as a function.
Moreover, high temperature is 37-45 degreeC here, and it becomes preferable in order of 37 degreeC, 38 degreeC, 39 degreeC, 40 degreeC, 41 degreeC, 42 degreeC, 43 degreeC, 44 degreeC, and 45 degreeC. When the temperature exceeds 45 ° C., the amount of BOB seed agent, an emulsifier having an HLB of 7 or less, and a fat or oil containing 40% by weight or more of a saturated fatty acid having 20 to 24 carbon atoms is excessively increased, and the snapping property of chocolate is significantly reduced. Tend to be.

A preferred embodiment of the chocolates of the present invention is chocolates having an automatic return upper limit temperature of 37 to 45 ° C., which contains emulsifiers having an HLB of 7 or less and BOB as essential components, and is not dissolved at 37 ° C. to 45 ° C. Chocolates with BOB-stabilized crystals. Here, the BOB content in the oil is preferably 1% by weight or more, more preferably 1.5% by weight or more, further preferably 2% by weight or more, preferably 4% by weight or less, more preferably 3% by weight or less. is there.

The chocolates targeted in the present invention are processed oils and fats in which fats and oils form a continuous phase, and tempering type chocolates, that is, blended fats and oils include cocoa butter and SUS (2-unsaturated-1,3-di-saturated glycerides). ) It is a chocolate using tempering type fats and oils such as enzyme transesterified oil, shea fat, palm oil, monkey fat, mango kernel oil, coconut fat, iripe fat or its fractionated oil.
In the chocolate of the present invention, fats and oils other than fats and oils rich in SUS components can be blended in accordance with the desired texture and physical properties within a range where tempering is possible. For example, vegetable oils such as soybean oil, rapeseed oil, corn oil, cottonseed oil, peanut oil, sunflower oil, rice oil, safflower oil, safflower oil, olive oil, sesame oil, palm oil, coconut oil, palm kernel oil, beef fat, pork fat, etc. Animal fats, and processed oils and fats that have been subjected to fractionation, hydrogenation, transesterification, and the like, or combinations of these fats and oils.
Moreover, you may contain the fats and oils which contain 40 weight% or more of emulsifiers below HLB7 of this invention, and a C20-C24 saturated fatty acid as a constituent fatty acid by mix | blending in a molten state like other compounded fats and oils. It can also be added later to the prepared chocolate dough.

※１ Ｂ−３７０は市販のショ糖脂肪酸エステル（ＨＬＢ３．０、構成脂肪酸は表６、製品名「リョートーシュガーエステルＢ−３７０（三菱化学フーズ（株）製）」）である。
※２ ＢＯＢ脂はＢＯＢを主成分とする油脂（炭素数２０〜２４の飽和脂肪酸含量は７０．４重量％、ＢＯＢ含有量は６２重量％） Examples will be described below, but the technical idea of the present invention is not limited to these examples. In the examples, both parts and% mean weight basis.
Table 1

* 1 B-370 is a commercially available sucrose fatty acid ester (HLB 3.0, constituent fatty acids are listed in Table 6, product name “Ryoto Sugar Ester B-370 (Mitsubishi Chemical Foods Co., Ltd.)”).
* 2 BOB fat is oil mainly composed of BOB (saturated fatty acid content of 20 to 24 carbon atoms is 70.4% by weight, BOB content is 62% by weight)

Example 1
According to the chocolate dough composition shown in Table 1, mixing, rolling and conching were performed by a conventional method to prepare a chocolate dough of Example 1 in a molten state. While stirring the prepared chocolate dough at a temperature of 35 ° C., a commercially available BOB seed agent (50% oil and fat, 50% sugar. BOB content in oil and fat: 62% by weight, product name “chocose seed B ( Fuji Oil Co., Ltd.))) was added and dispersed to 3% by weight with respect to the chocolate dough, seed tempered, poured into a template, and solidified at 10 ° C. for 30 minutes to give the chocolate of Example 1 Obtained. Addition dispersibility was good.
(Comparative Example 1)
Table 1 A chocolate dough was prepared in the same manner as in Example 1 except that the composition in Comparative Example 1 was followed. The BOB seed agent was added to the prepared chocolate dough in the same manner as in Example 1 so as to be 4% by weight with respect to the chocolate dough, thereby obtaining the chocolate of Comparative Example 1. The additive dispersibility was poor.

(Example 2)
Table 1 A chocolate dough was prepared in the same manner as in Example 1 except that the formulation in Example 2 was followed. In the same manner as in Example 1, the BOB seed agent was added to 1% by weight of the chocolate dough, dispersed and seed tempered, and then poured into a template and solidified at 10 ° C. for 30 minutes. The chocolate of Example 2 was obtained. Addition dispersibility was good.
(Comparative Example 2)
A chocolate dough was produced in the same manner as in Example 1 except that the composition in Table 1 Comparative Example 2 was followed. The BOB seed agent was added to the prepared chocolate dough in the same manner as in Example 1 so as to be 1% by weight with respect to the chocolate dough, and the chocolate of Comparative Example 2 was obtained.
(Comparative Example 3)
A chocolate dough was prepared in the same manner as in Example 1 except that the composition in Table 1 Comparative Example 3 was followed. The BOB seed agent was added to the prepared chocolate dough in the same manner as in Example 1 so as to be 1% by weight with respect to the chocolate dough, thereby obtaining the chocolate of Comparative Example 3.
(Comparative Example 4)
A chocolate dough was prepared in the same manner as in Example 1 except that the composition in Table 1 Comparative Example 4 was followed. While stirring the prepared chocolate dough with the temperature adjusted to 30 ° C., 0.5% by weight of the SOS seed agent (product name “Choco Seed A (manufactured by Fuji Oil Co., Ltd.)”) with respect to the chocolate dough After adding and dispersing and seed tempering, the mixture was poured into a template and solidified at 10 ° C. for 30 minutes to obtain a chocolate of Comparative Example 4. Addition dispersibility was good.
(Comparative Example 5)
A chocolate dough was prepared in the same manner as in Example 1 except that the composition in Table 1 Comparative Example 5 was followed. A chocolate of Comparative Example 5 was obtained in the same manner as in Example 1 except that the BOB seed agent was added to the prepared chocolate dough to 3.0% by weight. Addition dispersibility was good.

Each chocolate was aged under a temperature condition of 20 ° C. for 7 days, and then the evaluation of the automatic return upper limit temperature, the texture evaluation of the chocolate at room temperature, and the hardness evaluation by breaking load measurement were performed as follows. The oil content of each chocolate was extracted by a conventional method, and the content of the BOB component was measured by the HPLC method. The results are shown in Tables 1 and 2.

(Evaluation of automatic recovery upper limit temperature)
The chocolate after aging was placed in an incubator set at each temperature of 1 ° C. between 37 to 43 ° C., and kept standing for 16 hours. Thereafter, the chocolate was put in an incubator at 20 ° C. and solidified by cooling under relatively slow cooling conditions.
The chocolate was observed after storage for 7 days at 20 ° C., and the presence or absence of bloom was confirmed.
Table 1 shows the upper limit temperature for automatic return, which is the maximum temperature at which no bloom occurred in each chocolate.
The automatic return upper limit temperature passed 37 ° C. or higher, and the chocolate that became bloom by holding treatment at less than 37 ° C., that is, 37 ° C., was rejected.

In Comparative Example 3 in which 1% by weight of the BOB seed agent was added, the automatic return upper limit temperature was less than 37 ° C., which was insufficient. In Comparative Example 5 in which 3% by weight of the BOB seed agent was added, the temperature was 37 ° C., but the biting was soft and the snap feeling was inferior. In Comparative Example 1 in which 4% by weight of BOB seed agent was added to further increase the upper limit temperature, the upper limit temperature was 39 ° C., but there was a problem of poor dispersibility due to addition of a large amount of seed agent, and biting at room temperature. Was soft and inferior in snap.
In contrast, the upper limit temperature in Example 1 in which 3% by weight of the BOB seed agent was added to the chocolate dough blended with sucrose fatty acid ester B-370 as in Comparative Example 5 was 39 ° C., which was an upper limit temperature than Comparative Example 5. Was improved by 2 ° C. Moreover, compared with the comparative example 1 which achieved the upper limit temperature of 39 degreeC without mix | blending an emulsifier, the snap feeling at room temperature was clearly improved.
Further, in Example 2 in which 1% by weight of BOB fat was added in addition to sucrose fatty acid ester B-370, the upper limit temperature of 40 ° C. was achieved even with a small amount of addition of 1% by weight of BOB seed agent. And compared with the comparative example 2 which achieved the upper limit temperature of 40 degreeC without the emulsifier, the snap feeling at room temperature was clearly improved.

Table 2

(Evaluation of hardness of chocolate)
The hardness (breaking load) at 20 ° C. and 25 ° C. of the chocolate of Example 2 and Comparative Example 2 was measured with a Leoner (manufacturer: Yamaden Corporation, condition: Φ3 mm 1.0 mm / s).
As a result, it was confirmed that the break load was higher and harder in Example 2 at any temperature as evaluated by texture. (Table 2).

※１ Ｂ−１５０は市販のソルビタン脂肪酸エステル（ＨＬＢ２．５、構成脂肪酸は表６、製品名「ポエムＢ−１５０」理研ビタミン（株）製）である。
※２ ＢＯＢ脂はＢＯＢを主成分とする油脂（炭素数２０〜２４の飽和脂肪酸含量は７０．４重量％、ＢＯＢ含有量は６２重量％）
※３ 高エルシン酸菜種極硬油の構成脂肪酸中、炭素数２０〜２４の飽和脂肪酸含量は５
５重量％ Table 3

* 1 B-150 is a commercially available sorbitan fatty acid ester (HLB 2.5, constituent fatty acids are Table 6, product name “Poem B-150” manufactured by Riken Vitamin Co., Ltd.).
* 2 BOB fat is oil mainly composed of BOB (saturated fatty acid content of 20 to 24 carbon atoms is 70.4% by weight, BOB content is 62% by weight)
* 3 Among the constituent fatty acids of high erucic acid rapeseed oil, the saturated fatty acid content of 20 to 24 carbon atoms is 5.
5% by weight

(Example 3)
Table 3 A chocolate dough was prepared in the same manner as in Example 1 except that the composition in Example 3 was followed. The chocolate of Example 3 was obtained in the same manner as in Example 1 except that the BOB seed agent was added to the chocolate dough so that the BOB seed agent was 2% by weight.
(Comparative Example 6)
A chocolate dough was prepared in the same manner as in Example 1 except that the composition in Table 3 Comparative Example 6 was followed. A BOB seed agent was added to the prepared chocolate dough so as to be 2.0% by weight in the same manner as in Example 1 to obtain a chocolate of Comparative Example 6 (Comparative Example 7).
Table 3 A chocolate dough was prepared in the same manner as in Example 1 except that the composition in Comparative Example 7 was followed. A BOB seed agent was added to the prepared chocolate dough so as to be 2% by weight in the same manner as in Example 1 to obtain a chocolate of Comparative Example 7.

Each chocolate was aged under a temperature condition of 20 ° C. for 7 days, and then the evaluation of the automatic return upper limit temperature, the texture evaluation of the chocolate at room temperature, and the hardness evaluation by break load measurement were performed. The oil content of each chocolate was extracted by a conventional method, and the content of the BOB component was measured by the HPLC method. The results are shown in Tables 3 and 4.

In Example 3 in which high erucic acid rapeseed oil was blended in addition to sorbitan fatty acid ester B-150, an upper limit temperature of 40 ° C. was achieved by addition of 2% by weight of BOB seed agent. The snap feeling at room temperature was clearly improved as compared with Comparative Example 6 which achieved the upper limit temperature of 40 ° C. without an emulsifier.

（チョコレートの硬さ評価）
実施例３、比較例６のチョコレートの品温２０℃及び２５℃における硬さをレオナー（メーカー：（株）山電、条件：Φ３ｍｍ １．０ｍｍ／ｓ）にて測定した。その結果食感での評価通り、いずれの温度においても実施例３の方が破断荷重は高く、硬いことが確認できた。（表４） Table 4

(Evaluation of hardness of chocolate)
The hardness of the chocolate of Example 3 and Comparative Example 6 at 20 ° C. and 25 ° C. was measured with a Leoner (manufacturer: Yamaden Corporation, condition: Φ3 mm 1.0 mm / s). As a result, as evaluated by the texture, it was confirmed that Example 3 had a higher breaking load and was harder at any temperature. (Table 4)

(Examples 4 to 9)
Table 5 A chocolate dough was prepared in the same manner as in Example 1 except that the formulation in Examples 4 to 9 was followed. The chocolates of Examples 4 to 9 were obtained in the same manner as in Example 1 except that the BOB seed agent was added to the chocolate dough so that the BOB seed agent was 2% by weight.

※１ Ｓ−３７０は市販のショ糖脂肪酸エステル（ＨＬＢ３．０、構成脂肪酸は表６、製品名「リョートーシュガーエステルＳ−３７０（三菱化学フーズ（株）製）」）である。
※２ Ｂ−３７０は市販のショ糖脂肪酸エステル（ＨＬＢ３．０、構成脂肪酸は表６、製品名「リョートーシュガーエステルＢ−３７０（三菱化学フーズ（株）製）」）である。
※３ 高エルシン酸菜種極硬油の構成脂肪酸中、炭素数２０〜２４の飽和脂肪酸含量は５５重量％ Table 5

* 1 S-370 is a commercially available sucrose fatty acid ester (HLB3.0, constituent fatty acids are Table 6, product name "Ryoto Sugar Ester S-370 (Mitsubishi Chemical Foods)").
* 2 B-370 is a commercially available sucrose fatty acid ester (HLB 3.0, constituent fatty acids are listed in Table 6, product name “Ryoto Sugar Ester B-370 (Mitsubishi Chemical Foods Co., Ltd.)”).
* 3 The fatty acid content of high erucic acid rapeseed oil is 55% by weight.

Each chocolate was aged under a temperature condition of 20 ° C. for 7 days, and then an evaluation of the automatic return upper limit temperature and a texture evaluation of the chocolate at room temperature were performed. The oil content of each chocolate was extracted by a conventional method, and the content of the BOB component was measured by the HPLC method. The results are shown in Table 5.

In all Examples 4 to 9, the automatic return upper limit temperature was 40 ° C. or higher, which was favorable. In particular, Example 6 showed a very good result of 43 ° C. or higher.

The chocolate of Examples 4 to 9 and Comparative Example 2 was evaluated by sensory evaluation of the hardness (snap property) of biting at a product temperature of 20 ° C.
As a result, compared with the chocolate of Comparative Example 2 in which the upper limit temperature of automatic return is 40 ° C., the chocolate of Example 4 having the same upper limit temperature of automatic return of 40 ° C. is a bitter chocolate with a good bite and a good snapping property. It was. Examples 5 to 9 were chocolates with a good mouthfeel that had a higher automatic recovery upper limit temperature than that of Comparative Example 2 (41 to 43 ° C.), were harder to bite than Comparative Example 2, and had good snapping properties.

The constituent fatty acid composition of sucrose fatty acid ester B-370, sorbitan fatty acid ester B-150, and sucrose fatty acid ester S-370 was measured. The results are shown in Table 6.
Table 6

(Examples 10 and 11)
Table 7 A chocolate dough was prepared in the same manner as in Example 1 except that the composition of Examples 10 and 11 was followed. The chocolates of Examples 10 and 11 were obtained in the same manner as in Example 1 except that the BOB seed agent was added to the chocolate dough so that the BOB seed agent was 2% by weight.

※１ Ｆ−１０は市販のショ糖脂肪酸エステル（ＨＬＢ１．０、構成脂肪酸は表８、製品名「ＤＫエステルＦ−１０（第一工業製薬（株）製）」）である。
※２ Ｓ−６０Ｖは市販のソルビタン脂肪酸エステル（ＨＬＢ５．１、構成脂肪酸は表８、製品名「ポエムＳ−６０Ｖ（理研ビタミン（株）製）」）である。
※３ 高エルシン酸菜種極硬油の構成脂肪酸中、炭素数２０〜２４の飽和脂肪酸含量は５５重量％ Table 7

* 1 F-10 is a commercially available sucrose fatty acid ester (HLB 1.0, constituent fatty acids are Table 8, product name “DK Ester F-10 (Daiichi Kogyo Seiyaku Co., Ltd.)”).
* 2 S-60V is a commercially available sorbitan fatty acid ester (HLB 5.1, constituent fatty acids are Table 8, product name “Poem S-60V (manufactured by Riken Vitamin Co., Ltd.)”).
* 3 The fatty acid content of high erucic acid rapeseed oil is 55% by weight.

Each chocolate was aged under a temperature condition of 20 ° C. for 7 days, and then an evaluation of the automatic return upper limit temperature and a texture evaluation of the chocolate at room temperature were performed. The oil content of each chocolate was extracted by a conventional method, and the content of the BOB component was measured by the HPLC method. The results are shown in Table 7.

In Examples 10 and 11, the automatic return upper limit temperature was 40 ° C., which was good.

The chocolates of Examples 10 and 11 and Comparative Example 2 were evaluated at a product temperature of 20 ° C. by sensory evaluation of the hardness (snap property) of biting.
As a result, compared with the chocolate of Comparative Example 2 whose automatic return upper limit temperature is 40 ° C., both the chocolates of Examples 10 and 11 having the same automatic return upper limit temperature of 40 ° C. are hard to bite and have good snapping properties. It was chocolate.

The constituent fatty acid composition of sucrose fatty acid ester F-10 and sorbitan fatty acid ester S-60V was measured. The results are shown in Table 8.
Table 8

According to the present invention, it is possible to produce chocolate that does not become bloom even when exposed to a high temperature of 37 ° C. or higher, and the use of chocolate is promoted in the field of confectionery that has been considered impossible in the past.

Claims (8)

Add a powdered chocolate seed containing a stabilized crystal of triglyceride (BOB) with behenic acid at positions 1 and 3 and oleic acid at position 2 to a melted chocolate dough containing an emulsifier with an HLB of 7 or less. A method for producing chocolates characterized by the above. The said emulsifier is 1 or more chosen from sorbitan fatty acid ester or sucrose fatty acid ester, The manufacturing method of chocolates of Claim 1 characterized by the above-mentioned. The method for producing chocolates according to claim 1, wherein the emulsifier contains 50% by weight or more of a saturated fatty acid having 16 to 24 carbon atoms as a constituent fatty acid. The manufacturing method of chocolates of Claim 1 in which the said chocolate dough further contains the fats and oils which contain a C20-C24 saturated fatty acid 20weight% or more as a constituent fatty acid. The method for producing chocolates according to claim 4, wherein the fat is at least one of an extremely hardened oil of Hyelsin rapeseed oil or a transesterified oil containing 20% by weight or more of behenic acid as a constituent fatty acid. Chocolates having an upper limit temperature of 37-45 ° C. that can be automatically restored, containing emulsifiers with HLB of 7 or less and BOB as essential components, and having undissolved BOB-stabilized crystals at 37-45 ° C. . Automatic restoration at 37 ° C. to 45 ° C. for chocolates, characterized by adding a powdered chocolate seed containing BOB stabilized crystals to a melted chocolate dough containing an emulsifier having an HLB of 7 or less A method of imparting performance. Chocolate containing BOB added in a powder state, an emulsifier having an HLB of 7 or less, and an extremely hardened oil of Hyelin rapeseed oil.