JP7653278B2 - Fried eggs and their manufacturing method - Google Patents
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Description
本発明は、卵炒め及びその製造方法に関する。 The present invention relates to fried eggs and a method for producing the same.
従来、卵炒めは、カニ玉のほか、野菜や肉類、魚介類等の具材と卵の炒め物などとして、そのふんわりした外観が好まれ、コンビニエンスストアやスーパーマーケットなどの惣菜等に用いられている。 Traditionally, fried eggs have been made by stir-frying eggs with ingredients such as crab and egg, vegetables, meat, and seafood, and are popular for their fluffy appearance, and are used as prepared foods in convenience stores and supermarkets.
卵を炒め調理する技術について、これまでに複数報告されている。特許文献1には、玉子を攪拌しつつ過熱蒸気を直接吹き付けてスクランブルエッグ又は炒り玉子を得る玉子の加熱調理方法が記載されている。特許文献2には、所定量の油脂を鍋に入れ所定温度で加温した後に油脂と液卵が混ざり合うように撹拌する冷凍食品用炒り卵の製造方法が記載されている。 Several techniques for frying eggs have been reported so far. Patent Document 1 describes a cooking method for eggs in which superheated steam is directly sprayed onto the eggs while they are being stirred to produce scrambled eggs or fried eggs. Patent Document 2 describes a method for producing fried eggs for frozen food in which a specified amount of oil is placed in a pan, heated to a specified temperature, and then stirred to mix the oil and liquid egg.
近年、消費者のニーズの多様化により、カニ玉のほか各種具材と卵との炒め物等の卵炒めについて、より一層ふんわり自然な外観が求められている。
これに対し、従来の特許文献1及び2に記載された技術は、ふんわりした自然な外観を得るための構成について、一切考慮したものではない。
In recent years, diversifying consumer needs have led to a demand for a softer, more natural appearance in fried eggs, such as crab and egg dishes as well as stir-fried eggs with various ingredients.
In contrast to this, the conventional techniques described in Patent Documents 1 and 2 do not at all take into consideration a configuration for achieving a soft, natural appearance.
本発明の課題は、従来よりも更にふんわりした自然な外観を呈する卵炒め、及び、当該卵炒めを首尾よく製造できる製造方法を提供することにある。 The objective of the present invention is to provide fried eggs that have a fluffier, more natural appearance than conventional ones, and a method for successfully producing such fried eggs.
本発明者は卵炒めの外観について、鋭意検討した結果、所定の体積を有する凝固卵片の割合を制御することで、求める卵炒めの外観を得られることを見出した。
これに対し、特許文献1及び2では、前記のふんわりした自然な外観を得る点について何ら検討されていない。
As a result of extensive research into the appearance of fried eggs, the present inventors have found that the desired appearance of fried eggs can be obtained by controlling the proportion of coagulated egg pieces having a specified volume.
In contrast, Patent Documents 1 and 2 make no consideration as to how to obtain the soft and natural appearance.
本発明は、複数の凝固卵片を有し、
体積が15cm3以上50cm3未満である凝固卵片の合計質量が、全凝固卵片の合計の質量に対して30%以上80%以下である、卵炒めを提供するものである。
The present invention has a plurality of coagulated egg pieces,
The fried egg is provided in which the total mass of coagulated egg pieces having a volume of 15 cm3 or more and less than 50 cm3 is 30% or more and 80% or less of the total mass of all the coagulated egg pieces.
また本発明は、調理器具における加熱面を180℃以上250℃以下に熱し、液卵を含有する原料を投入し、前記液卵含有原料が調理器具の加熱面に接してから5秒以上20秒未満の間、放置した後に該加熱面から卵を剥がす第1工程、及び
剥がした卵が前記加熱面に接してから5秒以上20秒未満の間、放置した後に該加熱面から卵を剥がす第2工程、を有し、第2工程を1回行うか、複数回繰り返し行う、卵炒めの製造方法を提供するものである。
The present invention also provides a method for producing scrambled eggs, comprising a first step of heating the heating surface of a cooking utensil to 180°C or more and 250°C or less, pouring in an ingredient containing a liquid egg, leaving the liquid egg-containing ingredient for 5 to less than 20 seconds after it comes into contact with the heating surface of the cooking utensil, and then peeling the egg from the heating surface; and a second step of leaving the peeled egg for 5 to less than 20 seconds after it comes into contact with the heating surface, and then peeling the egg from the heating surface, wherein the second step is performed once or repeated a number of times.
本発明では、ふんわりとした自然な外観に優れた卵炒めが提供される。本発明の卵炒めは、その外観を生かし、カニ玉のほか、トマトやレタス、エビ、キクラゲ、畜肉等の具材と卵の炒め物等として有用である。また本発明では、ふんわりした自然な外観に優れた卵炒めを首尾よく提供可能な製造方法を提供できる。本発明の卵炒めの製造方法は、卵炒めの大量生産が可能な点で産業上有利である。 The present invention provides fried eggs with a soft and natural appearance. Taking advantage of its appearance, the fried eggs of the present invention are useful as crab and egg dishes, as well as stir-fries of eggs and ingredients such as tomatoes, lettuce, shrimp, wood ear mushrooms, and meat. The present invention also provides a manufacturing method that can successfully provide fried eggs with a soft and natural appearance. The manufacturing method of the present invention for fried eggs is industrially advantageous in that it allows for mass production of fried eggs.
以下、本発明をその好ましい実施形態に基づき説明する。
本発明の卵炒めは、複数の凝固卵片を有し、体積が15cm3以上50cm3未満である凝固卵片の合計質量が、全凝固卵片の合計の質量に対して30%以上80%以下である。
The present invention will now be described based on preferred embodiments thereof.
The fried egg of the present invention has a plurality of coagulated egg pieces, and the total mass of the coagulated egg pieces having a volume of 15 cm3 or more and less than 50 cm3 is 30% or more and 80% or less of the total mass of all the coagulated egg pieces.
凝固卵片は、液卵に、必要に応じて他の原料を混合させて炒め調理により加熱して凝固させたものである。凝固卵片は、卵の炒め調理により得られる形状であれば、粒状、板状、塊状、不定形状等のいずれであってもよい。色味の点から、凝固卵片は、卵白及び卵黄が混合した状態で凝固したものであることが好ましい。 Coagulated egg pieces are made by mixing liquid egg with other ingredients as necessary, heating and coagulating it by stir-frying. The coagulated egg pieces may be in any shape that can be obtained by stir-frying eggs, such as granular, plate-like, clumpy, or irregular shapes. From the standpoint of color, it is preferable that the coagulated egg pieces are made by coagulating a mixture of egg white and egg yolk.
凝固卵片は、定形を有しない液状又は流動状の卵とは異なり、一定の形状を有している。
凝固卵片と、液状又は流動状の卵との区別は、水平面から30cm上方に離間した位置に、水平に保持したステンレス製の篩(網目の孔が0.2cm×0.2cm)を設置し、その上に一つの凝固卵を置いて、その状態で30分間静置し、残った部分を凝固卵片とする。凝固卵は、網目の上に戴置した状態で上方から下方に投影した面積が最大となるように網目上に戴置する。残った部分は30分間静置した後に持ち上げた瞬間の部分とする。持ち上げた凝固卵片は、具材を含有しない場合は直ちに秤に載せたメスシリンダーに入れ体積及び質量を測定するものとする。また、後述する通り、凝固卵片が具材を含有する場合、凝固卵片をステンレス製のバットなどに移して具材を除去した後に、秤に載せたメスシリンダーに入れ体積及び質量を測定するものとする。
また前記の残った部分の重さが0.1g以上のものを凝固卵片とし、重さが0.1g未満の場合には、凝固卵片に含めないものとする。
また、凝固卵片か否かの判定や、その質量及び体積の測定は、卵炒めが出来上がってから品温10℃まで真空冷却後、室温に静置し、品温が室温となってから測定するものとする。冷凍状態の卵炒めを測定に供する場合は、電子レンジにて出力600W、重量1gにつき1秒の加熱時間にて解凍し、完全に解凍した後に上記と同様の測定に供するものとする。
Coagulated egg pieces have a definite shape, unlike eggs which are liquid or flowable and have no definite shape.
To distinguish between coagulated egg pieces and liquid or fluidized eggs, a horizontally held stainless steel sieve (with mesh holes of 0.2 cm x 0.2 cm) is placed 30 cm above the horizontal plane, one coagulated egg is placed on the sieve, and left to stand for 30 minutes, with the remaining part being the coagulated egg pieces. The coagulated egg is placed on the mesh so that the area projected downward from above is maximized when placed on the mesh. The remaining part is the part lifted up after being left to stand for 30 minutes. If the lifted coagulated egg pieces do not contain any ingredients, they are immediately placed in a measuring cylinder placed on a balance and their volume and mass are measured. In addition, as described below, if the coagulated egg pieces contain ingredients, the coagulated egg pieces are transferred to a stainless steel tray or the like to remove the ingredients, and then placed in a measuring cylinder placed on a balance to measure their volume and mass.
Furthermore, the remaining portion weighing 0.1 g or more is defined as a coagulated egg piece, and the remaining portion weighing less than 0.1 g is not included in the coagulated egg pieces.
In addition, to determine whether or not the egg pieces are coagulated, and to measure their mass and volume, the fried eggs are vacuum-cooled to a product temperature of 10°C after completion, then allowed to stand at room temperature, and measurements are made after the product temperature has reached room temperature. When measuring fried eggs in a frozen state, they are thawed in a microwave oven at an output of 600 W and heated for 1 second per gram of weight, and after being completely thawed, they are subjected to the same measurements as above.
凝固卵片は、他の凝固卵片と互いに隣接した状態となっており、卵炒めが卵以外の具材を有する場合には、当該具材を含有するか又は隣接した状態となっている。なお、凝固卵片が具材を含有するとは、例えば具材と卵が結着した状態となっている例が挙げられる。 The coagulated egg pieces are adjacent to each other, and if the fried egg contains ingredients other than eggs, they contain the ingredients or are adjacent to each other. Incidentally, when the coagulated egg pieces contain ingredients, for example, they may be in a state where the ingredients and the eggs are bound together.
凝固卵片が具材を含有する場合、凝固卵片の重さ及び体積は、凝固卵片の表面に密着した具材及び凝固卵片内部の具材をピンセット等で取り外し、測定するものとする。具材を取り外す際に凝固卵片が分離した際は分離分も含め、分離前の凝固卵片を1つとして体積を測定するものとする。
このような具材の処理方法を行う対象例としては、例えばカニ玉、中華風卵炒め等の、具材と液卵とを混合した状態で加熱処理を行う料理が挙げられる。また、例えば卵を単独で炒めた後に加熱した卵を取りだし、ついで、別の具材を卵と別に炒めて、次いで炒めた具材に炒めた卵を投入して混合して調理した場合等においても、必要に応じ、凝固卵片と具材の分離操作を行う。
When the coagulated egg pieces contain ingredients, the weight and volume of the coagulated egg pieces shall be measured after removing the ingredients adhering to the surface of the coagulated egg pieces and the ingredients inside the coagulated egg pieces with tweezers, etc. If the coagulated egg pieces separate when removing the ingredients, the volume shall be measured by counting the separated pieces as one piece, including the coagulated egg pieces before separation.
Examples of dishes that can be used in this way include dishes in which ingredients are mixed with liquid egg and then heated, such as crab meat and egg dishes and Chinese-style fried eggs. In addition, even in cases where eggs are fried on their own, the heated eggs are removed, other ingredients are fried separately from the eggs, and the fried eggs are then added to the fried ingredients and mixed together for cooking, separation of the coagulated egg pieces from the ingredients is performed as necessary.
なお、卵炒め中、体積が15cm3以上50cm3未満の凝固卵片の数は液卵含有原料500gあたり、5~20個であることが、上記の外観が一層良好となりやすいため好ましく7~16個であることがより好ましい。 During egg frying, the number of coagulated egg pieces having a volume of 15 cm3 or more and less than 50 cm3 per 500 g of liquid egg-containing raw material is preferably 5 to 20, and more preferably 7 to 16, since this tends to further improve the above-mentioned appearance.
上述した通り、本発明の卵炒めは、複数の凝固卵片を含有し、体積が15cm3以上50cm3未満である凝固卵片の合計質量が、全凝固卵片の合計の質量に対して30%~80%である。本発明者は、卵炒めの外観について鋭意検討した。その結果、卵炒めの外観には、一つ一つの凝固卵片の大きさと、その大きさのそろい方が重要であることを知見した。特に体積15cm3以上50cm3未満である凝固卵片の割合が重要である。凝固卵片の体積が15cm3以上であることは、スクランブルエッグとは異なる、中華料理における卵炒めの印象を与えやすい点やそぼろ状の炒り卵とも異なる点から重要である。凝固卵片の体積50cm3未満であることは、焦げの発生を抑制できる点、効率よく内部まで加熱する点から重要である。また体積が15cm3以上50cm3未満である凝固卵片の合計質量が、全凝固卵片の合計の30%以上であることで、大きな粒子が多いことによるふんわりした外観が得られる利点がある。体積が15cm3以上50cm3未満である凝固卵片の合計質量が、全凝固卵片の合計質量の80%以下であることで、焦げ付きを抑制しやすく、外観を良好にしやすいほか、効率的に加熱できる利点がある。この観点から、体積が15cm3以上50cm3未満である凝固卵片の合計質量が、全凝固卵片の合計質量の30%以上80%以下であることが好ましく、60%以上80%以下であることがより好ましい。 As described above, the fried egg of the present invention contains a plurality of coagulated egg pieces, and the total mass of the coagulated egg pieces having a volume of 15 cm3 or more and less than 50 cm3 is 30% to 80% of the total mass of all the coagulated egg pieces. The present inventors have intensively studied the appearance of fried eggs. As a result, they have found that the size of each coagulated egg piece and the uniformity of the sizes are important for the appearance of fried eggs. In particular, the proportion of coagulated egg pieces having a volume of 15 cm3 or more and less than 50 cm3 is important. The fact that the volume of the coagulated egg pieces is 15 cm3 or more is important because it is different from scrambled eggs, and it easily gives the impression of Chinese fried eggs, and it is also different from minced scrambled eggs. The fact that the volume of the coagulated egg pieces is less than 50 cm3 is important because it can suppress the occurrence of scorching and efficiently heats the inside. In addition, when the total mass of the coagulated egg pieces having a volume of 15 cm3 or more and less than 50 cm3 is 30% or more of the total mass of all the coagulated egg pieces, there is an advantage that a fluffy appearance can be obtained due to the large particles. When the total mass of the coagulated egg pieces having a volume of 15 cm3 or more and less than 50 cm3 is 80% or less of the total mass of all the coagulated egg pieces, there is an advantage that it is easy to suppress burning, it is easy to improve the appearance, and it is possible to heat efficiently. From this viewpoint, it is preferable that the total mass of the coagulated egg pieces having a volume of 15 cm3 or more and less than 50 cm3 is 30% or more and 80% or less of the total mass of all the coagulated egg pieces, and more preferably 60% or more and 80% or less.
上述した通り、凝固卵片の体積はメスシリンダーにて測定でき、例えば後述する実施例の記載の方法にて測定できる。凝固卵片は、箸やピンセット等で持ち上げて、秤の上に乗せたメスシリンダーに収容した状態で体積及び質量を測定する。凝固卵片を前記の網目上からメスシリンダー内に移動させる間に、凝固卵片の一部が欠けた場合には、分離分も含めて体積を測定する。 As mentioned above, the volume of the coagulated egg pieces can be measured using a measuring cylinder, for example, by the method described in the Examples below. The coagulated egg pieces are lifted with chopsticks or tweezers, etc., and the volume and mass are measured while they are placed in a measuring cylinder placed on a scale. If part of the coagulated egg pieces is chipped while moving them from the mesh into the measuring cylinder, the volume is measured including the separated part.
本発明では、更に、体積が15cm3未満である凝固卵片の合計質量が全凝固卵片の合計の質量に対して0%~60%であり、且つ、体積が50cm3以上である凝固卵片の合計質量が全凝固卵片の合計の質量に対して0%~20%であることが、一層ふんわりした望ましい外観が得やすく、効率的な加熱を行う点で好ましい。体積が15cm3未満である凝固卵片の合計質量が全凝固卵片の合計の質量に対して60%以下であることは、卵炒め全体を大きな凝固卵片で構成しやすく、ふんわりとした外観を良好にできる点で好ましい。また、体積が50cm3以上である凝固卵片の合計質量が全凝固卵片の合計の質量に対して20%以下であることは、焦げ付かずに卵炒めが得やすいことから外観を良好にでき、効率よく加熱が行える点で好ましい。これらの観点から、体積が15cm3未満である凝固卵片の合計質量が全凝固卵片の合計の質量に対して0%~60%であり、且つ、体積が50cm3以上である凝固卵片の合計質量が全凝固卵片の合計の質量に対して0%~20%であることが好ましく、体積が15cm3未満である凝固卵片の合計質量が全凝固卵片の合計の質量に対して0%~30%であり、且つ、体積が50cm3以上である凝固卵片の合計質量が全凝固卵片の合計の質量に対して0%~15%であることが特に好ましい。 In the present invention, it is further preferable that the total mass of the coagulated egg pieces having a volume of less than 15 cm3 is 0% to 60% of the total mass of all coagulated egg pieces, and that the total mass of the coagulated egg pieces having a volume of 50 cm3 or more is 0% to 20% of the total mass of all coagulated egg pieces, in order to obtain a more fluffy and desirable appearance and perform efficient heating. It is preferable that the total mass of the coagulated egg pieces having a volume of less than 15 cm3 is 60% or less of the total mass of all coagulated egg pieces, in order to easily form the whole egg stir-fry with large coagulated egg pieces and to obtain a fluffy and good appearance. It is also preferable that the total mass of the coagulated egg pieces having a volume of 50 cm3 or more is 20 % or less of the total mass of all coagulated egg pieces, in order to easily obtain the egg stir-fry without burning, thereby obtaining a good appearance and performing efficient heating. From these viewpoints, it is preferable that the total mass of coagulated egg pieces having a volume of less than 15 cm3 is 0% to 60% of the total mass of all coagulated egg pieces, and that the total mass of coagulated egg pieces having a volume of 50 cm3 or more is 0% to 20% of the total mass of all coagulated egg pieces, and it is particularly preferable that the total mass of coagulated egg pieces having a volume of less than 15 cm3 is 0% to 30% of the total mass of all coagulated egg pieces, and that the total mass of coagulated egg pieces having a volume of 50 cm3 or more is 0% to 15% of the total mass of all coagulated egg pieces.
卵炒めの原料としては、例えば上述した通り、上述した液卵及びその他の原料を用いて製造することができる。液卵とは、卵を割卵して中身を集めたものであり、全卵液のほか、卵黄液、卵白液、これらを任意の比率で混合した混合液を含む。また液状であって加熱により凝固するものであれば、酵素処理、加糖、加塩、冷蔵、冷凍等の各種工程を経て得られたものであってもよい。また卵は鶏卵のほか、ウズラ卵、アヒル卵、ダチョウ卵等も挙げられるが、鶏卵が好ましい。 As ingredients for fried eggs, for example, as described above, they can be produced using the liquid eggs and other ingredients described above. Liquid eggs are obtained by breaking eggs and collecting the contents, and include whole egg liquid, egg yolk liquid, egg white liquid, and mixtures of these in any ratio. In addition, as long as they are liquid and can be solidified by heating, they may be obtained through various processes such as enzyme treatment, sugaring, salting, refrigeration, and freezing. In addition to chicken eggs, eggs include quail eggs, duck eggs, and ostrich eggs, with chicken eggs being preferred.
液卵以外の卵炒めの原料としては、穀粉類;調味料;糖類;油脂類;野菜や肉、キノコ類などの卵以外の具材、水等が挙げられる。 Ingredients for fried eggs other than liquid egg include flour, seasonings, sugar, fats and oils, ingredients other than eggs such as vegetables, meat, mushrooms, water, etc.
卵炒めは穀粉類を含有していると、ふわふわした食感が得やすい点やふんわりした外観、食感が冷蔵・冷凍後も維持可能である点から好ましい。穀粉類としては、穀粉及び澱粉が挙げられる。穀粉としては、例えば、小麦粉、米粉、トウモロコシ粉、ワキシーコーン、馬鈴薯粉、タピオカ粉、甘藷粉等が挙げられる。澱粉としては、前記の穀粉を由来とする澱粉及びその加工澱粉が挙げられ、該加工澱粉としては、未加工澱粉にエーテル化、エステル化、α化、架橋処理、酸化処理、油脂加工等の処理の1つ以上を施したものが挙げられる。エーテル化にはヒドロキシプロピル化が含まれ、エステル化にはアセチル化が含まれる。ここでいう「澱粉」は、小麦等の植物から単離された「純粋な澱粉」を意味し、穀粉中に含有されている澱粉とは区別される。澱粉は食感の好ましさから、ワキシーコーン澱粉、タピオカ澱粉若しくは馬鈴薯澱粉又はこれらの加工澱粉が好ましく、また冷凍耐性から、加工澱粉が好ましく、架橋澱粉がより好ましく、特に、アセチル化リン酸架橋澱粉が特に好ましい。 It is preferable that fried eggs contain cereal flours, because it is easy to obtain a fluffy texture, and the fluffy appearance and texture can be maintained even after refrigeration or freezing. Examples of cereal flours include cereal flour and starch. Examples of cereal flours include wheat flour, rice flour, corn flour, waxy corn, potato flour, tapioca flour, sweet potato flour, etc. Examples of starch include starch derived from the above-mentioned cereal flours and processed starch thereof, and the processed starch includes unprocessed starch that has been subjected to one or more of the following treatments: etherification, esterification, gelatinization, cross-linking treatment, oxidation treatment, oil processing, etc. Etherification includes hydroxypropylation, and esterification includes acetylation. The term "starch" used here means "pure starch" isolated from plants such as wheat, and is distinguished from starch contained in cereal flour. From the viewpoint of texture, the starch is preferably waxy corn starch, tapioca starch, potato starch, or modified starch thereof, and from the viewpoint of freeze resistance, modified starch is preferable, cross-linked starch is more preferable, and acetylated phosphate cross-linked starch is particularly preferable.
上記の穀粉類を含有することの利点を得る点や食感・食味の点から、卵炒めは、穀粉類を0.5~6質量%含有することが好ましく、1~4質量%含有することがより好ましい。 In order to obtain the benefits of containing the above-mentioned grain flours and in terms of texture and taste, the fried egg dish preferably contains 0.5 to 6% by mass of grain flour, and more preferably 1 to 4% by mass.
卵炒めは炒めものであることから、卵に由来しない油脂を含有する。卵炒めが油脂を含有することで、焦げやすさが抑制され、上記所定体積の凝固卵片が上記割合範囲内である卵炒めが一層得やすくなる。油脂としては、菜種油、オリーブ油、米油、ゴマ油、ヤシ油、コーン油、綿実油、落花生油、トウモロコシ油、大豆油、ヒマワリ油、紅花(サフラワー)油、パーム分別油(パームオレイン等)、バターオイル、中鎖脂肪酸油、魚油等の各種動植物性油脂が挙げられる。油脂は常温(25℃)で液状であることが卵炒めの品温が室温程度でもふんわりした食感を維持できる点から好ましい。卵炒めを構成する凝固卵片は、油脂を1~40質量%含有することが好ましく、3~30質量%含有することがより好ましい。 Because fried eggs are fried foods, they contain fats and oils that are not derived from eggs. By containing fats and oils in fried eggs, the tendency to burn is suppressed, and fried eggs in which the above-mentioned volume of coagulated egg pieces is within the above-mentioned ratio range are more easily obtained. Examples of fats and oils include various animal and vegetable fats and oils such as rapeseed oil, olive oil, rice oil, sesame oil, palm oil, corn oil, cottonseed oil, peanut oil, corn oil, soybean oil, sunflower oil, safflower oil, palm fractionated oil (palm olein, etc.), butter oil, medium chain fatty acid oil, and fish oil. It is preferable that the fats and oils are liquid at room temperature (25°C) because the fluffy texture can be maintained even when the product temperature of the fried eggs is around room temperature. The coagulated egg pieces constituting the fried eggs preferably contain fats and oils in an amount of 1 to 40% by mass, and more preferably 3 to 30% by mass.
卵炒めは、野菜やキノコ類、豆腐、豚肉、牛肉、鶏肉などの肉類、エビやカニ、魚等の魚介、天かす、薬味等の卵以外の具材を含有していてもよい。上述した通り、卵炒めにおけるこれらの具材の含有の形態としては、凝固卵片とは別に具材が含まれる形態、及び、凝固卵片中に具材が含まれる形態が挙げられる。 Egg stir-fries may contain ingredients other than eggs, such as vegetables, mushrooms, tofu, meats such as pork, beef, and chicken, seafood such as shrimp, crab, and fish, tempura flakes, and condiments. As mentioned above, the ingredients may be included in the egg stir-fry in two forms: a form in which the ingredients are included separately from the coagulated egg pieces, and a form in which the ingredients are included in the coagulated egg pieces.
次いで、本発明の卵炒めの製造方法について説明する。
本製造方法は、調理器具における加熱面を180℃以上250℃以下に熱して、液卵を投入し、液卵が前記加熱面に接してから5秒以上20秒未満の間、放置した後に該加熱面から卵を剥がす第1工程、及び
剥がした卵が前記加熱面に接してから5秒以上20秒未満の間、放置した後に該加熱面から卵を剥がす第2工程、を有し、第2工程を1回行うか、複数回繰り返し行う。
Next, the method for producing the fried egg of the present invention will be described.
This manufacturing method comprises a first step of heating the heating surface of a cooking utensil to 180°C or higher and 250°C or lower, pouring in liquid egg, leaving the liquid egg to stand for 5 to less than 20 seconds after it comes into contact with the heating surface, and then peeling the egg from the heating surface; and a second step of leaving the peeled egg to stand for 5 to less than 20 seconds after it comes into contact with the heating surface, and then peeling the egg from the heating surface, where the second step is performed once or repeatedly multiple times.
調理器具としては、鍋、ホットプレート、フライパン、蒸気釜、IH釜、炒め機等が挙げられる。 Cooking equipment includes pots, hot plates, frying pans, steam cookers, induction cookers, stir-fries, etc.
第1工程及び第2工程において、卵が前記加熱面に接してから剥がすまでの時間及び加熱面の温度は同じであっても異なっていてもよい。 In the first and second steps, the time from when the egg comes into contact with the heating surface to when it is peeled off and the temperature of the heating surface may be the same or different.
上記の通り、第1工程において、調理器具の加熱面が180℃以上250℃以下の温度である状態で液卵含有原料を調理器具に投入する。調理器具の加熱面の上には、液卵含有原料を投入する前に油を予め投入していてもよく、調理器具の表面性状によっては油を用いなくてよい。第1工程及び第2工程において、調理器具の加熱面が卵と接するとは、油を介して卵と加熱面が接する状態を含む。第1工程及び第2工程において、液卵含有原料中の卵は、調理器具の180℃以上250℃以下である加熱面に接してから5秒以上20秒未満の間、放置された後に前記加熱面から剥がされる。第1工程及び第2工程において、卵が当該加熱面に接してから、5秒以上20秒未満の間、放置された後に加熱面から剥がされることで、上記体積範囲の凝固卵片を上記質量割合で含有する卵炒めが得られる。第1工程の加熱面の温度が180℃未満である、或いは第1工程及び第2工程で液卵含有原料が加熱面に接してから剥がすまでの時間が5秒未満であると、15cm3以上50cm3未満の体積の凝固卵片が30%以上となりがたく、スクランブルエッグのような細かい粒子状となってしまう。また加熱面の温度が250℃超、又は第1工程及び第2工程で液卵が加熱面に接してから剥がすまでの時間が20秒以上であると、求める大きさの凝固卵片が得られず焦げも生じやすい。これらの点から第1工程及び第2工程では、卵が前記加熱面に接してから5秒以上12秒以下の間、放置後に該加熱面から剥がすことが更に好ましい。また加熱の際の加熱面の温度は200℃~250℃であることも好ましい。 As described above, in the first step, the liquid egg-containing raw material is put into the cooking utensil when the heating surface of the cooking utensil is at a temperature of 180°C or more and 250°C or less. Oil may be put on the heating surface of the cooking utensil before the liquid egg-containing raw material is put in, and depending on the surface properties of the cooking utensil, oil may not be used. In the first and second steps, the heating surface of the cooking utensil contacts the egg, including a state in which the egg and the heating surface contact each other via oil. In the first and second steps, the egg in the liquid egg-containing raw material is left for 5 to 20 seconds after contacting the heating surface of the cooking utensil, which is at 180°C or more and 250°C or less, and then peeled off from the heating surface. In the first and second steps, the egg is left for 5 to 20 seconds after contacting the heating surface and then peeled off from the heating surface, thereby obtaining a fried egg containing coagulated egg pieces in the above volume range at the above mass ratio. If the temperature of the heating surface in the first step is less than 180°C, or if the time from when the liquid egg-containing raw material comes into contact with the heating surface to when it is peeled off in the first and second steps is less than 5 seconds, it is difficult for the coagulated egg pieces to have a volume of 15 cm3 or more but less than 50 cm3 to be 30% or more, and the egg pieces will be in a fine particle form like scrambled eggs. If the temperature of the heating surface is more than 250°C, or if the time from when the liquid egg comes into contact with the heating surface to when it is peeled off in the first and second steps is 20 seconds or more, it is difficult to obtain coagulated egg pieces of the desired size, and the egg is likely to burn. From these points of view, in the first and second steps, it is more preferable that the egg is left for 5 to 12 seconds after coming into contact with the heating surface, and then peeled off from the heating surface. It is also preferable that the temperature of the heating surface during heating is 200°C to 250°C.
第2工程の繰り返しは、凝固卵の塊の中心部の温度が85℃以上となるまで行うことが好ましい。凝固卵の塊の中心部の温度は芯温ともいう。凝固卵の塊の中心部の位置とは外部に露出しない位置であって、食品分野における技術常識の範囲内で定められ、目視により判断される。凝固卵の塊の中心部の温度は、前述した中心部の位置に針状プローブ温度計を差し込むことで測定できる。凝固卵の塊は、1つの凝固卵片であってもよく、複数の凝固卵片の凝集塊であってもよい。好ましくは、温度測定対象となる凝固卵の塊は、平面視における長さ、幅および高さがいずれも1cm以上であることが好ましい。平面視における長さとは、塊の平面視像を横断する最長線分の長さをいい、幅とは、前記平面視像における当該最長線分と直交する方向の長さを指す。塊の中心部とは、高さ方向における塊の略中心部であり、且つ、当該高さ位置における水平面と平行な断面における位置も、略中心であることが好ましい。卵炒めにおける温度測定対象となる凝固卵の塊の位置に限定はないが、ランダムに選択した3つ以上の塊の中心部の温度の最低温度とする。中心部の温度は、攪拌を停止した状態で測定する。
更に本製造方法では、得られる歩留が88%以上となることがふんわりした外観を実現する点から好ましい。歩留の上限としては95%以下であることが製造容易性の点で好ましい。歩留は、液卵含有原料の質量に対する得られた卵炒めの質量の比率として計算でき、上述した卵炒めの中心温度が85℃以上に到達したタイミングで測定できる。
The second step is preferably repeated until the temperature at the center of the coagulated egg mass reaches 85°C or higher. The temperature at the center of the coagulated egg mass is also called the core temperature. The position of the center of the coagulated egg mass is a position that is not exposed to the outside, and is determined within the scope of technical common sense in the food industry and is judged visually. The temperature at the center of the coagulated egg mass can be measured by inserting a needle probe thermometer into the above-mentioned center position. The coagulated egg mass may be a single coagulated egg piece or an agglomerate of multiple coagulated egg pieces. It is preferable that the length, width, and height of the coagulated egg mass to be the temperature measurement target are all 1 cm or more in plan view. The length in plan view refers to the length of the longest line segment that crosses the planar image of the mass, and the width refers to the length in the direction perpendicular to the longest line segment in the planar image. It is preferable that the center of the mass is approximately the center of the mass in the height direction, and the position in a cross section parallel to the horizontal plane at that height position is also approximately the center. There is no restriction on the location of the coagulated egg mass to be measured for temperature during egg frying, but the minimum temperature among the central parts of three or more randomly selected masses shall be used. The central temperature shall be measured with stirring stopped.
Furthermore, in the present production method, it is preferable that the yield obtained is 88% or more in terms of realizing a fluffy appearance. The upper limit of the yield is preferably 95% or less in terms of ease of production. The yield can be calculated as the ratio of the mass of the obtained fried egg to the mass of the liquid egg-containing raw material, and can be measured when the central temperature of the fried egg described above reaches 85°C or more.
液卵含有原料を調理器具に投入する前に油を予め投入する場合、当該油を180℃以上250℃以下に熱して、当該油に対して液卵含有原料を投入することが好ましい。油としては、上述した油脂と同様の油脂を用いることができる。油は、調理器具の加熱面における液卵と接する部位の少なくとも一部に存在すればよいが、例えば当該部位の面積における40%以上に存在することが好ましい。液卵を投入する前に調理器具の加熱面上に存在させる油の量としては、例えば液卵100質量部に対して2~8質量部が焦げ付き防止や効率的な加熱の点で好ましく挙げられる。 When oil is added before the liquid egg-containing ingredients are added to the cooking utensil, it is preferable to heat the oil to 180°C or higher and 250°C or lower, and then add the liquid egg-containing ingredients to the oil. The oil may be the same as the oils and fats described above. The oil may be present on at least a portion of the area of the heating surface of the cooking utensil that comes into contact with the liquid egg, and it is preferable that the oil be present on at least 40% of the area of that portion. For example, 2 to 8 parts by mass of oil per 100 parts by mass of liquid egg is preferable as the amount of oil to be present on the heating surface of the cooking utensil before the liquid egg is added, in terms of preventing burning and efficient heating.
上記製造方法においては、第1工程で鍋に投入された液卵含有原料は、調理器具の加熱面上で熱せられる。鍋に投入する液卵の量は、加熱面1cm2当たり液卵含有原料が0.1g~20gであることが、上記範囲の体積の凝固卵片が上記質量割合である卵炒めを首尾よく得られる点から好ましく、0.2g~15gであることがより好ましい。 In the above-mentioned production method, the liquid egg-containing raw material put into the pan in the first step is heated on the heating surface of the cooking utensil. The amount of liquid egg put into the pan is preferably 0.1 g to 20 g of liquid egg-containing raw material per 1 cm2 of heating surface, from the viewpoint of successfully obtaining fried eggs having the above-mentioned mass ratio of coagulated egg pieces with the above-mentioned volume range, and more preferably 0.2 g to 15 g.
第1工程及び第2工程において卵を加熱面から剥がす作業には、加熱面に沿って且つ加熱面に対して相対的に移動するスクレイパーを用いることが好ましい。ここでいう相対的に移動するとは、スクレイパーが移動せずに加熱面をスクレイパーに対して移動させる場合を含む意図である。なお、スクレイパーは手動のヘラであってもよく、例えば手動等で卵の剥がし工程を行っても構わない。 In the first and second steps, it is preferable to use a scraper that moves along the heated surface and relatively to the heated surface in order to remove the eggs from the heated surface. The term "relatively moving" as used here is intended to include cases where the heated surface moves relative to the scraper without the scraper moving. The scraper may be a manual spatula, and the egg removal process may be performed manually, for example.
大量生産の場合には、例えば、調理器具として鍋を用い、鍋を縦方向に延びる軸周りに回転させると共に、鍋内に当該縦方向の軸と交差する軸(以下横向きの軸とも言う)周りに回転する撹拌体を設け当該撹拌体が鍋底と対向する位置にスクレイパーを有している加熱装置を用いてもよい。この場合、例えば、鍋を平面視すると半径に対応する位置に撹拌体が存在するようにしてもよい。
上記加熱装置を用いる場合、第1工程及び第2工程において、加熱面上で所定時間放置された卵は、当該時間経過後に鍋底から剥がされる、この剥がし工程の際には、鍋の加熱面が縦方向の回転軸周りに回転するとともに、撹拌体が横向きの軸周りに回転する。2つの軸の回転はスクレイパー(撹拌体)によって掻き上げられる卵が加熱面におけるスクレイパー(撹拌体)と近接する側から、離間する側に送り出されるようになされることが好ましい。スクレイパーの形状としては、例えば横向きの軸周りに回転するらせん状のものが挙げられる。このような加熱装置は、たとえば再表2020/084815号公報等に記載されている。剥がし作業がなされた卵は加熱面で上記時間、更に放置されることが繰り返される。
In the case of mass production, for example, a heating device may be used in which a pot is used as a cooking utensil, the pot is rotated around an axis extending in the vertical direction, and a stirrer is provided in the pot that rotates around an axis (hereinafter also referred to as a horizontal axis) that intersects with the vertical axis, and the stirrer has a scraper at a position facing the bottom of the pot. In this case, for example, the stirrer may be located at a position corresponding to the radius when the pot is viewed from above.
When using the above heating device, in the first and second steps, the eggs left on the heating surface for a predetermined time are peeled off from the bottom of the pot after the time has elapsed. During this peeling step, the heating surface of the pot rotates around a vertical axis of rotation, and the stirring body rotates around a horizontal axis. It is preferable that the rotation of the two axes is such that the eggs scraped up by the scraper (stirring body) are sent from the side close to the scraper (stirring body) on the heating surface to the side away from the scraper (stirring body). The shape of the scraper can be, for example, a spiral shape that rotates around a horizontal axis. Such a heating device is described, for example, in Publication No. 2020/084815. The eggs that have been peeled are repeatedly left on the heating surface for the above-mentioned time.
卵炒め原料となる液卵含有原料には、液卵に加えて、加熱前に他の原料を添加、混合させていてもよく、それらの好ましい種類及び量は上記で挙げた通りである。更に詳細に言えば、穀粉類を用いる場合、その使用量は、食感などから、液卵100質量部に対し、0.5~8質量部が好ましく挙げられ、1~6質量部がより好ましい。 In addition to the liquid egg, other ingredients may be added and mixed into the liquid egg-containing ingredients used for the fried egg before heating, and the preferred types and amounts of these ingredients are as described above. More specifically, when using grain flour, the amount used is preferably 0.5 to 8 parts by mass, and more preferably 1 to 6 parts by mass, per 100 parts by mass of liquid egg, taking into account the texture, etc.
液卵含有原料に予め水を含有させる場合、液卵100質量部に対し、外観、食感、食味の点から、その量は5~60質量部が好ましく挙げられ、10~50質量部が卵の風味を維持しつつ、ふんわりとした食感を実現する点からより好ましい。 When water is added to the liquid egg-containing ingredient in advance, the amount is preferably 5 to 60 parts by mass per 100 parts by mass of liquid egg in terms of appearance, texture, and taste, and 10 to 50 parts by mass is more preferable in terms of achieving a fluffy texture while maintaining the egg flavor.
液卵含有原料に加熱前に油脂を予め含有させる場合、その量は液卵100質量部に対し、外観、食感、食味の点から、1~40質量部が好ましく挙げられ、5~30質量部が分離を防ぎつつ、ふんわりとした食感を実現する点でより好ましい。 When fats and oils are added to the liquid egg-containing ingredients before heating, the amount is preferably 1 to 40 parts by mass per 100 parts by mass of liquid egg in terms of appearance, texture, and taste, and 5 to 30 parts by mass is more preferable in terms of preventing separation and achieving a fluffy texture.
また、液卵含有原料に他の具材を含有する場合、当該他の具材を前もって加熱しておいてもよく、未加熱状態であってもよい。液卵含有原料中、液卵の割合は、例えば40質量%以上であると、卵の風味および凝固性に優れるため好ましく、50質量%以上であることがより好ましい。 When the liquid egg-containing ingredient contains other ingredients, the other ingredients may be preheated or may be unheated. The proportion of liquid egg in the liquid egg-containing ingredient is preferably, for example, 40% by mass or more, as this provides excellent egg flavor and coagulation properties, and more preferably 50% by mass or more.
本製造方法では、一度に調理器具に投入する液卵含有原料が例えば、50g以上であると、製造効率の点で好ましく、100g以上がより好ましい。 In this manufacturing method, it is preferable from the standpoint of manufacturing efficiency to put 50 g or more of the liquid egg-containing ingredients into the cooking utensil at one time, and 100 g or more is even more preferable.
本発明で得られる卵炒めはそのふんわりした自然な外観を生かして、例えばカニ玉のほか、トマトやその他の野菜、魚介類や肉類等との卵の炒め物、丼もの等に用いることができる。 The egg stir-fry obtained by this invention can be used, taking advantage of its fluffy and natural appearance, in dishes such as crab and egg stir-fry, egg stir-fry with tomatoes and other vegetables, seafood and meat, and rice bowl dishes.
以下、実施例により本発明をさらに詳細に説明するが、本発明は以下の実施例に限定されるものではない。 The present invention will be described in more detail below with reference to examples, but the present invention is not limited to the following examples.
〔実施例1~5、比較例1及び2〕
実施例1~4、比較例1及び2では、下記表1記載の配合を用い、表1の成分のうち、全卵、水及び加工澱粉(アセチル化リン酸架橋ワキシー澱粉)を混合して液卵含有原料を得た。また、実施例5では、下記表2の配合を用い、表2のうち、全卵、水、加工澱粉(アセチル化リン酸架橋ワキシー澱粉)及びカニかまぼこを混合して液卵含有原料を得た。
[Examples 1 to 5, Comparative Examples 1 and 2]
In Examples 1 to 4 and Comparative Examples 1 and 2, a liquid egg-containing raw material was obtained by mixing whole eggs, water, and processed starch (acetylated phosphate-crosslinked waxy starch) from the ingredients in Table 1, using the formulation shown in Table 1 below. In Example 5, a liquid egg-containing raw material was obtained by mixing whole eggs, water, processed starch (acetylated phosphate-crosslinked waxy starch) and crab meat paste from the ingredients in Table 2, using the formulation shown in Table 2 below.
各実施例及び各比較例のそれぞれの液卵含有原料から以下のようにして卵炒めを得た。
フライパン(加熱面の半径18.5cm)内にごま油23.8gを入れて、フライパン及びごま油を表3記載の温度に熱した後、液卵含有原料を投入し、当該温度でフライパンを加熱しながら下記表3の時間が経過した時点で、ヘラを用いて前記フライパンの内表面から卵を剥がした。それを繰り返し行って、卵炒めを得た。凝固卵の塊の芯温が85℃まで上昇した時点で加熱を終了させた。芯温は上記好ましい大きさの塊の中心部の温度として測定した。加熱時間を表3に示す。得られた卵炒めの歩留及び卵炒めを構成する各凝固卵片の体積及び質量を上記の手順にて測定した。なお、凝固卵片の体積は、秤に載せたメスシリンダー(容量500ml、内径50mm)に水200mlを入れて凝固卵片をメスシリンダーに投入し、体積増加分を測定することで行った。
得られた卵炒めは10名の訓練されたパネラーにて下記評価基準にて評価させ、その平均点を下記表3に示した。得られた結果を表3に示す。
Fried eggs were obtained from the liquid egg-containing raw materials of each of the Examples and Comparative Examples as follows.
23.8 g of sesame oil was placed in a frying pan (heating surface radius 18.5 cm), and the frying pan and sesame oil were heated to the temperature shown in Table 3. Then, the liquid egg-containing raw material was added, and the frying pan was heated at the temperature. When the time shown in Table 3 had elapsed, the egg was peeled off from the inner surface of the frying pan using a spatula. This was repeated to obtain fried eggs. Heating was terminated when the core temperature of the coagulated egg mass rose to 85°C. The core temperature was measured as the temperature at the center of the mass of the above-mentioned preferred size. The heating time is shown in Table 3. The yield of the obtained fried eggs and the volume and mass of each coagulated egg piece constituting the fried egg were measured by the above-mentioned procedure. The volume of the coagulated egg pieces was measured by adding 200 ml of water to a measuring cylinder (capacity 500 ml, inner diameter 50 mm) placed on a balance, pouring the coagulated egg pieces into the measuring cylinder, and measuring the increase in volume.
The resulting fried eggs were evaluated by 10 trained panelists according to the following evaluation criteria, and the average scores are shown in Table 3. The results are shown in Table 3.
<外観評価基準>
5点: 凝固卵片が適度に大きく、中華料理の卵炒めに適したふんわり感を感じさせる外観である。
4点: 凝固卵片が適度に大きく、中華料理の卵炒めに適したふんわり感をやや感じさせる。
3点: 凝固卵片の大きさがやや細かいが許容範囲。
2点: 凝固卵片が中華料理の卵炒めに適したふんわり感を感じさせる大きさでない、もしくは焦げ付いている。
1点: 凝固卵片が中華料理の卵炒めに適したふんわり感を感じさせる大きさでない、かつ焦げ付いている。
<Appearance evaluation criteria>
5 points: The coagulated egg pieces are moderately large, giving the appearance of a fluffy texture suitable for Chinese egg stir-fry.
4 points: The coagulated egg pieces are moderately large and have a slight fluffy texture that is suitable for Chinese egg stir-fry.
3 points: The size of the coagulated egg pieces is somewhat small, but within the acceptable range.
2 points: The coagulated egg pieces are not large enough to create the fluffy texture required for Chinese egg stir-frying, or they are burnt.
1 point: The coagulated egg pieces are not large enough to give the fluffy texture required for Chinese egg stir-frying, and are burnt.
Claims (8)
体積が15cm3以上50cm3未満である凝固卵片の合計質量が、全凝固卵片の合計の質量に対して30%以上80%以下である、卵炒め(ただし、炒めた茹で卵を含むものを除く)。 Having a plurality of coagulated egg pieces,
Fried eggs (excluding those containing fried boiled eggs) in which the total mass of coagulated egg pieces having a volume of 15 cm3 or more and less than 50 cm3 is 30% or more and 80% or less of the total mass of all coagulated egg pieces.
体積が50cm3以上である凝固卵片の合計質量が全凝固卵片の合計の質量に対して0%以上20%以下である、請求項1に記載の卵炒め。 2. The scrambled egg of claim 1 , wherein the total mass of the coagulated egg pieces having a volume of less than 15 cm3 is 0% or more and 60% or less of the total mass of all the coagulated egg pieces, and the total mass of the coagulated egg pieces having a volume of 50 cm3 or more is 0% or more and 20% or less of the total mass of all the coagulated egg pieces.
体積が15cm 3 以上50cm 3 未満である凝固卵片の合計質量が、全凝固卵片の合計の質量に対して30%以上80%以下である、卵炒めの製造方法であって、
調理器具における加熱面を180℃以上250℃以下に熱して液卵含有原料を投入し、液卵含有原料が調理器具の加熱面に接してから5秒以上20秒未満の間、放置した後に該加熱面から卵を剥がす第1工程、及び
剥がした卵が前記加熱面に接してから5秒以上20秒未満の間、放置した後に該加熱面から卵を剥がす第2工程、を有し、第2工程を1回行うか、複数回繰り返し行う、卵炒めの製造方法。 Having a plurality of coagulated egg pieces,
A method for producing scrambled eggs, wherein the total mass of coagulated egg pieces having a volume of 15 cm3 or more and less than 50 cm3 is 30% or more and 80% or less of the total mass of all the coagulated egg pieces,
The method for producing scrambled eggs comprises a first step of heating the heating surface of a cooking utensil to 180°C or more and 250°C or less, pouring in a liquid egg-containing raw material, leaving the liquid egg-containing raw material for 5 to less than 20 seconds after it comes into contact with the heating surface of the cooking utensil, and then peeling the egg from the heating surface; and a second step of leaving the peeled egg for 5 to less than 20 seconds after it comes into contact with the heating surface, and then peeling the egg from the heating surface, the second step being performed once or repeated multiple times.
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| JP2005348661A (en) | 2004-06-11 | 2005-12-22 | Ajinomoto Co Inc | Method for producing cooked rice with egg flavor |
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