WO2019220893A1 - 含水含泡チョコレート - Google Patents
含水含泡チョコレート Download PDFInfo
- Publication number
- WO2019220893A1 WO2019220893A1 PCT/JP2019/017359 JP2019017359W WO2019220893A1 WO 2019220893 A1 WO2019220893 A1 WO 2019220893A1 JP 2019017359 W JP2019017359 W JP 2019017359W WO 2019220893 A1 WO2019220893 A1 WO 2019220893A1
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- WO
- WIPO (PCT)
- Prior art keywords
- chocolate
- water
- foamed
- foam
- whipping
- Prior art date
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- 235000019219 chocolate Nutrition 0.000 title claims abstract description 142
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 107
- 239000006260 foam Substances 0.000 title claims abstract description 25
- 230000005484 gravity Effects 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000005057 refrigeration Methods 0.000 abstract 2
- 244000299461 Theobroma cacao Species 0.000 description 131
- 230000008014 freezing Effects 0.000 description 17
- 238000007710 freezing Methods 0.000 description 17
- 239000000796 flavoring agent Substances 0.000 description 11
- 235000019634 flavors Nutrition 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 230000000704 physical effect Effects 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 6
- 239000006071 cream Substances 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 4
- 230000001953 sensory effect Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 235000000346 sugar Nutrition 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 3
- 238000001878 scanning electron micrograph Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 239000003925 fat Substances 0.000 description 2
- 235000015203 fruit juice Nutrition 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 235000008476 powdered milk Nutrition 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 235000020183 skimmed milk Nutrition 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 235000008939 whole milk Nutrition 0.000 description 2
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 description 1
- QCVGEOXPDFCNHA-UHFFFAOYSA-N 5,5-dimethyl-2,4-dioxo-1,3-oxazolidine-3-carboxamide Chemical compound CC1(C)OC(=O)N(C(N)=O)C1=O QCVGEOXPDFCNHA-UHFFFAOYSA-N 0.000 description 1
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 241001364889 Helius Species 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- 235000009470 Theobroma cacao Nutrition 0.000 description 1
- 235000005764 Theobroma cacao ssp. cacao Nutrition 0.000 description 1
- 235000005767 Theobroma cacao ssp. sphaerocarpum Nutrition 0.000 description 1
- 235000001046 cacaotero Nutrition 0.000 description 1
- 229940110456 cocoa butter Drugs 0.000 description 1
- 235000019868 cocoa butter Nutrition 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 235000014103 egg white Nutrition 0.000 description 1
- 210000000969 egg white Anatomy 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 235000021552 granulated sugar Nutrition 0.000 description 1
- 235000015243 ice cream Nutrition 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- -1 lactose Chemical class 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 239000000787 lecithin Substances 0.000 description 1
- 229940067606 lecithin Drugs 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 150000002772 monosaccharides Chemical class 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 235000019871 vegetable fat Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23P—SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
- A23P30/00—Shaping or working of foodstuffs characterised by the process or apparatus
- A23P30/40—Foaming or whipping
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
- A23G1/00—Cocoa; Cocoa products, e.g. chocolate; Substitutes therefor
- A23G1/0003—Processes of manufacture not relating to composition or compounding ingredients
- A23G1/0026—Mixing; Roller milling for preparing chocolate
- A23G1/003—Mixing; Roller milling for preparing chocolate with introduction or production of gas, or under vacuum; Whipping; Manufacture of cellular mass
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
- A23G1/00—Cocoa; Cocoa products, e.g. chocolate; Substitutes therefor
- A23G1/30—Cocoa products, e.g. chocolate; Substitutes therefor
- A23G1/32—Cocoa products, e.g. chocolate; Substitutes therefor characterised by the composition containing organic or inorganic compounds
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
- A23G1/00—Cocoa; Cocoa products, e.g. chocolate; Substitutes therefor
- A23G1/30—Cocoa products, e.g. chocolate; Substitutes therefor
- A23G1/32—Cocoa products, e.g. chocolate; Substitutes therefor characterised by the composition containing organic or inorganic compounds
- A23G1/36—Cocoa products, e.g. chocolate; Substitutes therefor characterised by the composition containing organic or inorganic compounds characterised by the fats used
- A23G1/38—Cocoa butter substitutes
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
- A23G1/00—Cocoa; Cocoa products, e.g. chocolate; Substitutes therefor
- A23G1/30—Cocoa products, e.g. chocolate; Substitutes therefor
- A23G1/50—Cocoa products, e.g. chocolate; Substitutes therefor characterised by shape, structure or physical form, e.g. products with an inedible support
- A23G1/52—Aerated, foamed, cellular or porous products, e.g. gas expanded
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
- A23G2200/00—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF containing organic compounds, e.g. synthetic flavouring agents
- A23G2200/10—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF containing organic compounds, e.g. synthetic flavouring agents containing amino-acids, proteins, e.g. gelatine, peptides, polypeptides
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2200/00—Function of food ingredients
- A23V2200/20—Ingredients acting on or related to the structure
- A23V2200/234—Raising agent
Definitions
- the present invention relates to a water-containing foam-containing chocolate that can sufficiently sense the flavor of chocolate even in a freezing temperature range, and exhibits a smooth, soft and soft texture.
- Patent Document 1 describes a water-containing chocolate material that can be filled in ice cream distributed in a freezing temperature range so that the flavor of a rich raw chocolate can be tasted as it is.
- Patent Document 2 describes a water-containing chocolate that is soft in the freezing temperature range and has little change in physical properties over time.
- An object of the present invention is to provide a water-containing foam-containing chocolate that can sufficiently sense the flavor of chocolate even in a freezing temperature range and that exhibits a smooth, soft and soft texture.
- the inventors of the manufacturing process can fully sense the flavor of chocolate even in the freezing temperature range by whipping oil-in-water type water-containing chocolate under certain conditions, and it is smooth and soft.
- the present inventors have found a water-containing foam-containing chocolate that exhibits a soft new texture.
- the present invention provides an oil-in-water type water-containing foam-containing chocolate containing 16 to 55% by weight of water.
- the flavor of chocolate can be sufficiently felt even in the freezing temperature range, it has a smooth, soft and soft new texture, processability, and excellent shape retention at room temperature and freezing temperature range
- a water-containing foamed chocolate having properties is provided.
- the present invention relates to an oil-in-water type water-containing foam-containing chocolate containing 16 to 55% by weight of water.
- the chocolate dough used in the water-containing foamed chocolate of the present invention is not particularly limited as long as it is a chocolate commonly used by those skilled in the art, and sugar, sugars such as lactose, cacao mass, whole milk powder and / or skim milk powder, cocoa butter Including vegetable oils and fats, emulsifiers such as lecithin, and fragrances.
- These blends in the chocolate dough include 10% to 50% by weight of sugar, 10% to 50% by weight of cocoa mass, and 0% to 40% by weight of whole milk powder and / or skim milk powder. It can be changed as appropriate as long as it has a fat content of 30 wt% or more and 60 wt% or less in the chocolate dough.
- the chocolate dough may be chocolate that requires tempering operation or chocolate that does not require tempering operation.
- the water-containing foamed chocolate of the present invention contains air bubbles, it is necessary to first produce the water-containing chocolate by mixing the chocolate dough and the aqueous component.
- aqueous component water, sake, fresh cream, fruit juice, meringue and the like can be used.
- the water content in the hydrated foamed chocolate is preferably in the range of 16% by weight to 55% by weight. Further, from the viewpoint of texture and shape retention, the water content is more preferably in the range of 16 wt% to 50 wt%, and further preferably in the range of 30 wt% to 50 wt%. A range of 30% by weight to 40% by weight is particularly preferable.
- the hardness of the water-containing foamed chocolate of the present invention is represented by a load with a distortion rate of 40%, and if the load with a distortion rate of ⁇ 18 ° C. is 40% is 1.5N or more and 40.5N or less, the freezing temperature The texture in the area is sufficiently soft, and you can fully feel the flavor of chocolate.
- the moisture of the water-containing foamed chocolate of the present invention is 0.05 N or more and 0.60 N or less at a load at which the distortion rate is 40% at room temperature (23 ° C.), the hardness at ⁇ 18 ° C. tends to be in the above range. .
- the specific gravity at room temperature (23 degreeC) of a water-containing foam containing chocolate is 0.2-1.0. If the specific gravity of the water-containing foamed chocolate is in the above range, the water-containing foamed chocolate of the present invention in the freezing temperature range can exhibit a smooth and soft texture. Moreover, the water-containing foamed chocolate of this invention can implement
- the ratio of bubbles having an equivalent circle diameter of 30 ⁇ m or more and 50 ⁇ m or less is 50% or more among bubbles having an equivalent circle diameter of 20 ⁇ m or more in the water-containing foamed chocolate.
- the water-containing foamed chocolate of this invention in a freezing temperature range is preferable in order to exhibit a softer and softer food texture. It is preferable that the ratio of the bubbles is 70% or more because the softness of the texture is further increased.
- the method for producing the water-containing foamed chocolate of the present invention will be described below. Weigh and mix the above ingredients. When water, sake, fresh cream or fruit juice is used as the aqueous component, it is mixed at this point. The mixture is warmed and stirred until all of the material is dissolved. When all the ingredients are dissolved, emulsify using a high speed stirrer. The emulsification can be carried out, for example, by stirring at 1,000 rpm or more for 2 minutes or more, but may be appropriately changed depending on the type and ratio of the material. The mixture after emulsification is cooled to 45 ° C. or lower. Thus, an oil-in-water type water-containing chocolate can be obtained.
- the load at which the distortion rate is 40% at room temperature (23 ° C) of the hydrated chocolate is 0.05N or more and 0.60N or less
- the load at which the distortion rate at -18 ° C of the hydrated foamed chocolate after whipping is 40% Is preferably 1.5N or more and 40.5N or less.
- the hydrated chocolate is whipped to obtain the hydrated foamed chocolate of the present invention.
- the whipping is carried out so that the hydrated chocolate is entrapped with the hydrated chocolate cooled to 45 ° C. or lower using a vertical mixer, continuous whipping machine or the like.
- the hydrated foamed chocolate before whipping has a viscosity at room temperature (23 ° C.) of 20,000 cP or less because it can be whipped using a general vertical mixer or continuous whipping machine.
- the whipping conditions may be any conditions as long as the load of the hydrated foam-containing chocolate of the present invention is such that the load at which the strain rate at ⁇ 18 ° C. is 40% is 1.5 N or more and 40.5 N or less.
- the whipping condition is more preferably a condition in which the specific gravity of the hydrated foam-containing chocolate after whipping and the equivalent circle diameter of the bubbles satisfy the above range.
- Whipping can be performed using, for example, a vertical mixer, a continuous mixer, or the like.
- a commercially available mixer may be used as the vertical mixer or continuous mixer.
- the temperature at which the whipping is performed is sufficient if the hydrated chocolate is in a fluid state, and is preferably 50 ° C. or lower.
- the mixer can be rotated at a rotational speed of 40 rpm to 2,000 rpm when whipping.
- the water-containing foamed chocolate and meringue produced above are mixed.
- the water-containing foamed chocolate of the present invention containing meringue can be produced by uniformly mixing the water-containing foamed chocolate and meringue using, for example, a hopper or a continuous whipping machine.
- the water-containing foamed chocolate of the present invention produced above can be cooled to a product after filling the mold. Moreover, ice may be wrapped and processed into a soft cream shape or formed into a spherical shape.
- the hardness of the water-containing foamed chocolate of the present invention can be determined by the following method using a rheometer. At room temperature (23 ° C.), a resin plunger of ⁇ 30 mm was pushed into the water-containing foamed chocolate of the present invention at ⁇ 18 ° C. at a speed of 1 mm / sec. The load to be expressed represents the hardness of the water-containing foamed chocolate of the present invention.
- the viscosity of the water-containing foamed chocolate of the present invention is determined by the following method using a B-type viscometer. After calibrating the viscometer, the viscosity measured by immersing the router in the water-containing foamed chocolate of the present invention to a predetermined position and rotating the router is taken as the viscosity of the water-containing foamed chocolate of the present invention.
- the specific gravity of the hydrated foam-containing chocolate of the present invention may be determined by any method, for example, by the following method. After measuring the volume and weight of the measuring container at room temperature, the water-containing foamed chocolate of the present invention is filled in the measuring container, and the weight of the chocolate filled with the measuring container is measured at room temperature. By dividing the difference between the weight of the weighing container and the chocolate and the weight of the weighing container by the volume of the weighing container, the specific gravity of the hydrous foam-containing chocolate of the present invention can be determined. Any measuring container may be used as the measuring container, but a transparent measuring container is preferable because the unfilled portion of chocolate is easily understood.
- the circle equivalent diameter of the bubbles of the water-containing foamed chocolate of the present invention may be determined by any method, for example, it can be determined by the following method. Under freezing, a slice of the hydrous foamed chocolate of the present invention is prepared, and the cross section is measured with a scanning electron microscope (SEM) to obtain an image (SEM image). The equivalent circle diameter is determined for a circular portion of the image that appears to be a bubble of 20 ⁇ m or more. In addition, in the image of the slice of the hydrated foamed chocolate, a circle portion of 20 ⁇ m or less is excluded because it cannot be distinguished from bubbles and fat craters.
- SEM scanning electron microscope
- Example 1 Manufacture of water-containing foam-containing chocolate A mixture of chocolate-standard chocolate, water, fresh cream and emulsifier was stirred with hot water to dissolve all the ingredients. Thereafter, sterilization was performed at 68 ° C. for 30 minutes, and the material mixture was emulsified by stirring at 1000 rpm for 2 minutes or more with a high-speed stirrer (Homomixer MARK II, manufactured by Primix Co., Ltd.). The emulsified product was cooled to 45 ° C. or lower while stirring to obtain a water-containing chocolate containing 37% by weight of water. Then, the water-containing foamed chocolate was obtained by stirring the water-containing chocolate obtained above at 45 ° C. for 90 seconds at 400 rpm using a general large mixer. In addition, as a result of measuring electricity supply, the obtained water-containing foamy chocolate was an O / W type emulsified state.
- FIG. 1 shows the relationship between the strain rate and load of the hydrated foam-containing chocolate and the hydrated chocolate at 23 ° C.
- FIG. 2 shows the relationship between the strain rate and the load of the hydrated foam-containing chocolate and the hydrated chocolate at ⁇ 18 ° C. 1 and 2, the moisture-containing chocolate before whipping and the moisture-containing foamed chocolate after whipping have almost no difference in hardness at 23 ° C, but the moisture-containing chocolate after whipping is remarkably soft at -18 ° C.
- Examples 2 to 7 In the same manner as in Example 1, a water-containing chocolate containing 16% to 60% of water was prepared. The hydrated chocolate was stirred under the conditions shown in Table 1 to obtain the hydrated foamed chocolate of Examples 2 to 7. These physical properties were measured in the same manner as in Example 1. Table 1 shows the results. When the raw materials were blended so that the water content was 13 to 15% by weight, the raw material mixture was not emulsified, and water-containing chocolate could not be obtained.
- the flavor of chocolate can be sufficiently sensed even in the freezing temperature range of the present invention, it has a smooth, soft and soft new texture, excellent in processability at room temperature, and in the room temperature and freezing temperature range.
- the shape retention, mouth-feel, chocolate feeling is allowed to be 2 or more, and the hardness is 3 or more Evaluation is acceptable.
- the coolness since the preferred coolness varies depending on the purpose of the product, no allowable width is provided.
- Example 8 Production of meringue-containing water-containing foamed chocolate
- O / W-type water-containing foamed chocolate containing 38% by weight of water was obtained.
- the specific gravity of the water-containing foamed chocolate was 0.62.
- a meringue having a specific gravity of 0.21 consisting of egg white, granulated sugar, and water is prepared, and the water-containing foamed chocolate and meringue prepared above are mixed at a weight ratio of 1: 1 to obtain a meringue-containing water-containing foamed chocolate. Obtained.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Confectionery (AREA)
Abstract
Description
例えば、特許文献1には、冷凍温度域で流通されるアイスクリームに、濃厚な生チョコレートの風味をそのまま味わえるように充填することができる含水チョコレート素材が記載されている。
また、特許文献2には、冷凍温度域で軟らかく、かつ経時での物性変化が少ない含水チョコレートが記載されている。
また、特許文献2に記載の含水チョコレートでは、砂糖の代わりに単糖類を用いる必要があり、チョコレートの風味が劣るという問題があった。
本発明の含水含泡チョコレートで用いるチョコレート生地は、当業者に普通に用いられるチョコレートであれば特に限定はされず、砂糖、乳糖などの糖類、カカオマス、全脂粉乳および/または脱脂粉乳、ココアバターなどの植物油脂、レシチンなどの乳化剤、香料を含む。チョコレート生地中のこれらの配合は、砂糖が10重量%以上50重量%以下、カカオマスが10重量%以上50重量%以下、および全脂粉乳および/または脱脂粉乳が0重量%以上40重量%以下であり、かつチョコレート生地中に30重量%以上60重量%以下の脂肪分を有する範囲で、適宜変更が可能である。
上記気泡の割合が70%以上であると、さらに食感のふんわりとした軟らかさが増すために好ましい。
本発明の含水含泡チョコレートの製造法を以下に説明する。
上記の材料を計量し混合する。水性成分として、水、酒、生クリーム、果汁を用いる場合には、この時点で混合する。混合物を加温し、材料すべてが溶解するまで撹拌する。材料がすべて溶解したら、高速撹拌機を用いて乳化を行う。乳化は、例えば、1,000rpm以上で2分以上撹拌することで行えるが、材料の種類、割合等により適宜変更してもよい。乳化後の混合物は、45℃以下に冷却する。こうして水中油型の含水チョコレートを得ることができる。含水チョコレートの室温(23℃)で歪率が40%となる荷重が0.05N以上0.60N以下である場合、ホイップ後の含水含泡チョコレートの-18℃における歪率が40%となる荷重が1.5N以上40.5N以下となりやすいため好ましい。
以下に、含水含泡チョコレートの硬さ、粘度、比重、および気泡の最大直径の測定方法について述べる。
室温(23℃)ではφ30mmの樹脂製のプランジャーを、また-18℃ではφ5mmの樹脂製のプランジャーを、本発明の含水含泡チョコレートに1mm/秒の速度で押し込み、歪率が40%となる荷重を本発明の含水含泡チョコレートの硬さを表すものとしている。
粘度計を校正した後に、ルータを本発明の含水含泡チョコレートに所定の位置まで浸し、ルータを回転させることにより測定された粘度を、本発明の含水含泡チョコレートの粘度としている。
室温にて計量容器の容積および重量を測定した後に、本発明の含水含泡チョコレートを当該計量容器に充填し、室温にて計量容器ごと充填されたチョコレートの重さを測定する。計量容器とチョコレートの重さと計量容器の重さとの差を、計量容器の容積で除することにより、本発明の含水含泡チョコレートの比重を求めることができる。計量容器は、いかなる計量容器を用いてもよいが、透明な計量容器であれば、チョコレートの未充填箇所が分かりやすいため好ましい。
冷凍下において、本発明の含水含泡チョコレートの切片を作成し、その断面を走査型電子顕微鏡(SEM)により測定を行い、画像(SEM画像)を得る。画像中の、20μm以上の気泡と見られる円部分について、円相当径を求める。
なお、含水含泡チョコレートの切片の画像では、20μm以下の円部分については、気泡と脂肪クレータとの区別がつかないため、除外している。
含水含泡チョコレートの製造
チョコレート規格のチョコレート、水、生クリーム、乳化剤の混合物を、湯煎しながら撹拌し、材料をすべて溶解した。その後、68℃で30分間殺菌を行い、材料混合物を高速撹拌機(ホモミクサーMARK II、プライミクス株式会社製)で1000rpm、2分以上撹拌することで乳化した。
乳化したものを撹拌しながら45℃以下に冷却し、水分を37重量%含む含水チョコレートを得た。
続いて、上記で得た含水チョコレートを45℃において、一般的な大型ミキサーを用い、400rpmで90秒間撹拌することで、含水含泡チョコレートを得た。なお、通電を測定した結果、得られた含水含泡チョコレートはO/W型の乳化状態であった。
上記で調製した含水含泡チョコレートの物性値を、以下の方法で測定を行った。
上記で調製した含水チョコレート及び含水含泡チョコレートの歪率が40%となる荷重をφ30mmの樹脂製プランジャーを取り付けたレオメーター(RHEONER II CREEP METER RE2-33005C、株式会社山電製)を用いて、23℃および-18℃で測定を行った。サンプルは直径65mm、高さ30mmの円柱形のものを用い、測定速度は1mm/秒であった。-18℃および23℃における含水チョコレートの歪率が40%となる荷重は、それぞれ15.80Nおよび0.21Nであった。また、-18℃および23℃における含水含泡チョコレートの歪率が40%となる荷重は、それぞれ3.27Nおよび0.19Nであった。
図1には、23℃における含水含泡チョコレートおよび含水チョコレートの歪率と荷重の関係を示している。また、図2には、-18℃での含水含泡チョコレートおよび含水チョコレートの歪率と荷重の関係を示している。図1および図2から、ホイップ前の含水チョコレートとホイップ後の含水含泡チョコレートは、23℃においては硬さの違いがほとんどないが、-18℃においてはホイップ後の含水含泡チョコレートが著しく軟らかくなることが分かる。
含水含泡チョコレートを200mlの計量カップに満たし、すり切った重量を23℃で測定したところ、比重は0.67であった。
上記で調製した含水チョコレート及び含水含泡チョコレートの粘度をB型粘度計(TVB-10型粘度計、東機産業株式会社製)を用いて測定を行った。23℃における、含水チョコレートの粘度は2090cP、含水含泡チョコレートの粘度は8610cPであった。
上記で調製した含水含泡チョコレートを、-40℃以下で切片(7mm×7mm)を切り出し、切片の断面を、-120℃~100℃で走査型電子顕微鏡(Helious G4、サーモフィッシャーサイエンティフィック社製)を用いてSEM画像を得た。SEM画像より、切片断面中の気泡の円相当径を求めたところ、円相当径が30μm以上50μm以下である気泡の割合は75%であった。
実施例1と同様に、水分を16%~60%含む含水チョコレートを調製した。含水チョコレートを表1に示す条件で撹拌し、実施例2~7の含水含泡チョコレートを得た。これらの物性を実施例1と同様に測定し、表1に結果を示す。
なお、水分含有量が13~15重量%となるように原料を配合したものは、原料混合物が乳化せず、含水チョコレートを得ることはできなかった。
以下の項目について、実施例1~7の含水含泡チョコレートについて、専門家5名による官能評価を行った。結果を表2に示す。
・保形性:-18℃の冷凍庫から取出した後、22℃で30分放置後の形状
3:形状が変わらない
2:形状が一部変形する
1:形状が保てず崩れる
・口どけ:22℃で-18℃の冷凍庫から取出した直後の喫食による評価
3:良い
2:どちらでもない
1:悪い
・硬さ:-18℃の冷凍庫から取出した後、22℃での喫食時における硬さ
5:-18℃の冷凍庫から取出した直後に、抵抗なく噛める程度の硬さ
4:-18℃の冷凍庫から取出した直後に、容易に噛める程度の硬さ
3:-18℃の冷凍庫から取出した直後に、噛める程度の硬さ
2:-18℃の冷凍庫から取出した直後に、やや硬いが噛める程度の硬さ
1:-18℃の冷凍庫から取出した直後は、硬くて噛めない
・チョコ感:常温又は冷蔵流通している市販の生チョコレートとの比較
3:チョコレート感は変わらない
2:やや劣る
1:チョコレート感は弱い
・冷たさ:冷凍状態での喫食時における冷たさ
5:とても冷たく感じる
4:やや冷たく感じる
3:冷たく感じる
2:やや冷たさを感じない
1:冷たさを感じない
メレンゲ含有含水含泡チョコレートの製造
実施例1と同様の方法で、水分を38重量%含むO/W型の含水含泡チョコレートを得た。この含水含泡チョコレートの比重は0.62であった。
別途、卵白、グラニュー糖、水からなる比重0.21のメレンゲを調製し、上記で調製した含水含泡チョコレートとメレンゲを重量比で1:1の割合で混合し、メレンゲ含有含水含泡チョコレートを得た。
このメレンゲ含有含水含泡チョコレートの物性を実施例1と同様に測定したところ、-18℃および23℃における歪率が40%となる荷重は、それぞれ0.69Nおよび0.11Nであり、比重は0.35であり、円相当径が30μm以上50μm以下である気泡の割合は54%であった。
また、メレンゲ含有含水含泡チョコレートについて、実施例1~7と同様に、専門家5名による官能評価を行った結果を表2に示す。表2に示すように、本実施例のメレンゲ含有含水含泡チョコレートは、本発明の目的の効果を得ることができた。
Claims (7)
- 水を16重量%以上55重量%以下含む、水中油型の含水含泡チョコレート。
- -18℃における歪率が40%となる荷重が1.5N以上20.0N以下であることを特徴とする、請求項1に記載の含水含泡チョコレート。
- 室温における比重が0.2以上1.0以下であることを特徴とする、請求項1または2に記載の含水含泡チョコレート。
- メレンゲを含むことを特徴とする、請求項1~3のいずれか1項に記載の含水含泡チョコレート。
- 水を16重量%以上55重量%以下含む、水中油型の含水チョコレートをホイップすることを特徴とする、含水含泡チョコレートの製造方法。
- 前記ホイップすることが、前記含水含泡チョコレートの室温における比重が0.2以上1.0以下となるようにホイップすることを特徴とする、請求項5に記載の含水含泡チョコレートの製造方法。
- 水の最終含有量が16重量%以上55重量%以下となるようにメレンゲを加えることを特徴とする、請求項5または6に記載の含水含泡チョコレート。
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