JP5238905B1 - Manufacturing method of roasted green buckwheat flour - Google Patents

Manufacturing method of roasted green buckwheat flour Download PDF

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JP5238905B1
JP5238905B1 JP2012238400A JP2012238400A JP5238905B1 JP 5238905 B1 JP5238905 B1 JP 5238905B1 JP 2012238400 A JP2012238400 A JP 2012238400A JP 2012238400 A JP2012238400 A JP 2012238400A JP 5238905 B1 JP5238905 B1 JP 5238905B1
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和美 高橋
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有限会社はばたき
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Abstract

【課題】玄そばを容易に粉砕でき、ルチンの含有量が多い玄そば食品の効能だけでなく、カカオに似た芳しい香りとそばの風味ゆたかな甘みとを同時に得られる焙煎玄そば粉の製造方法および焙煎玄そば粉を提供する。
【解決手段】玄そばを150℃〜200℃の温度で18〜20分間焙煎して粉砕する。焙煎で玄そばは圧縮強度が小さくなる。そのため、製粉時、殻を含めて玄そばを容易に粉砕できる。また、殻に含まれるルチンは焙煎時の熱で分解され難く、かつ焙煎により殻の圧縮強度が小さくなって殻をすべて容易に粉砕できるため、焙煎玄そば粉には、従来の玄そば粉以上のルチンの含有量を期待できる。しかも、焙煎玄そば粉を含む食品を食する際、焙煎した玄そば特有のカカオにも似た芳しい香りと、そばの風味ゆたかな甘みとの両方が同時に得られる。
【選択図】図1
An object of the present invention is to provide a roasted brown buckwheat flour that can easily grind Genso buckwheat and obtain not only the effects of Genba buckwheat foods with a high rutin content, but also a fragrance similar to cacao and a rich sweetness of buckwheat. A production method and roasted buckwheat flour are provided.
The soba is roasted and ground at a temperature of 150 to 200 ° C. for 18 to 20 minutes. Roasting reduces the compressive strength of Genso. Therefore, during milling, the soba can be easily crushed including the shell. In addition, rutin contained in the shell is difficult to be decomposed by the heat during roasting, and the compressive strength of the shell is reduced by roasting so that the entire shell can be easily crushed. A rutin content higher than buckwheat flour can be expected. Moreover, when eating foods containing roasted genba buckwheat flour, both a savory fragrance resembling roasted genba cacao and a rich sweetness of buckwheat can be obtained at the same time.
[Selection] Figure 1

Description

この発明は焙煎玄そば粉の製造方法、詳しくは焙煎した玄そばをそのまま粉末にした焙煎玄そば粉の製造方法に関する。 The present invention method for producing a roasted Xuan buckwheat flour, specifically relates to a manufacturing method of roasting Xuan buckwheat was intact powder buckwheat Xuan roasted.

殻が付いたそばの実は、玄そばと呼ばれる。玄そばは、刈り入れ後に乾燥して水分を除去し、その後、殻(果皮)に付着したそばの茎や葉、泥や塵、砂利、小石、他の植物の種子などを除去する角押しを行い、次いで研磨機による研磨が行われている(精選工程)。
精選された玄そばは、例えば非特許文献1に記載されているように、臼などで粉砕して玄そば粉(挽きぐるみ、全量粉)に加工される(製粉工程)。こうして得られた玄そば粉は、例えば田舎そば(麺)の原料粉として使用される。
玄そば粉は、そばの実を殻ごと粉にしているため、色が黒くそばの実のみを原料としたそば粉に比べて香りや風味が良いとともに、抗酸化活性を示すポリフェノールの一種であるルチンが大量に含まれた健康食品とされている。
[平成24年10月19日検索]、インターネット〈URL:http://jiten.kurumaya−soba.com/sobako.htm〉
The soba noodles with shells are called Gen soba. Xuan buckwheat is dried after mowing to remove moisture, and then pressed to remove buckwheat stems and leaves, mud and dust, gravel, pebbles and other plant seeds attached to the shell (fruit skin). Then, polishing by a polishing machine is performed (selection process).
As described in Non-Patent Document 1, for example, the carefully selected Gen Soba is pulverized with a mortar or the like to be processed into Genso buckwheat flour (grinding powder, full-powder powder) (milling step). The soba flour obtained in this way is used, for example, as a raw material powder for country buckwheat (noodle).
Genso buckwheat flour is a kind of polyphenol that has anti-oxidant activity as well as aroma and flavor compared to buckwheat flour that uses only buckwheat nuts as the raw material because buckwheat flour is made into whole shell powder. It is considered to be a health food containing a large amount of rutin.
[October 19, 2012 search], Internet <URL: http: // giten. kurumaya-soba. com / sobako. htm>

しかしながら、従来の玄そば粉は、乾燥した玄そばをそのまま(殻ごと)臼挽きするため、製粉工程において、石臼を低速回転させなければそばの実を被うかたい殻を粉砕することができず、しかも粉砕した玄そば粉には大きな殻片も紛れ込んでおり、後工程でこの大きな殻片を除去しなければならなかった。また、乾燥しただけの玄そばを粉にした玄そば粉は、「そば粉」と同様に日持ちが悪く、しかもかたい殻は粉末にしても口の中でボソボソとした違和感があった。また、従来の玄そば粉では、玄そばを焙煎した際に生じるカカオにも似た独特の芳しい香りと、焙煎した玄そばの風味ゆたかな甘みとを得ることはできなかった。   However, since traditional ginsoba flour grinds the dried ginsoba as it is (with the whole shell), the hard shell covering the buckwheat berries cannot be crushed in the milling process unless the stone mill is rotated at a low speed. In addition, a large shell piece was also mixed into the ground buckwheat flour, and this large shell piece had to be removed in a later step. In addition, Genso buckwheat flour, which was powdered from dried soba noodles, had a long lasting life like “Soba buckwheat flour”, and even if the hard shell was powdered, it felt uncomfortable in the mouth. In addition, the conventional Genso buckwheat flour has not been able to obtain a unique fragrance similar to the cacao produced when roasting Gensoba and the rich sweetness of the roasted Genso buckwheat.

そこで、この発明者は、鋭意研究の結果、玄そばを製粉する前に、玄そばを焙煎し、焙煎時に排出された使用済みの熱風を、刈り入れ後の玄そばの人工乾燥に利用すれば、上述した課題はすべて解消されることを知見し、この発明を完成させた。 Therefore, as a result of diligent research, this inventor has roasted the soba before milling the soba and used the hot air discharged during roasting for artificial drying of the soba after harvesting. As a result, it was found that all the above-mentioned problems could be solved, and the present invention was completed.

この発明は、玄そばをすべての殻ごと容易に粉砕することができるとともに、ルチンの含有量が多い玄そば食品としての効能だけでなく、玄そば粉に比べて日持ちが良くかつ口当たりが滑らかで、焙煎した玄そば特有のカカオにも似た芳しい香りとそばの風味ゆたかな甘みとの両方を同時に得られ、かつ直接食用に供することができる焙煎玄そば粉を製造することができるとともに、玄そばの均一な人工乾燥を、専用の熱源を設けることなく、焙煎時に排出された使用済みの熱風を利用して短時間で行うことができる焙煎玄そば粉の製造方法を提供することを目的としている。 This invention is capable of easily crushing all the shells of the soba noodles, has not only the effect as a soba food with a high rutin content, but also has a longer shelf life and smooth texture than the soba flour. , Ru can be produced roasted Gen buckwheat flour can be subjected to both a flavor rich sweetness of buckwheat and fragrant similar to Xuan near specific cocoa roasted obtained simultaneously and directly edible In addition, we provide a method for producing roasted brown buckwheat flour that allows uniform artificial drying of the soba noodles in a short time by using the used hot air discharged during roasting without providing a dedicated heat source. The purpose is to do.

請求項1に記載の発明は、そばの実に殻が付いた刈り入れ後の玄そばを人工乾燥装置により人工乾燥する人工乾燥工程と、人工乾燥後の玄そばを150℃〜200℃の温度で18〜20分間焙煎する焙煎工程と、焙煎した玄そばを、そばの実を被う殻ごと粉砕する製粉工程とを備え、前記焙煎工程では、人工乾燥後の玄そばを、外周に所定隙間を空けて外装ドラムが設けられた回転ドラムに投入し、該回転ドラムを回転させながら、ファンヒータの熱風を前記回転ドラムと前記外装ドラムとの隙間に流すことによって玄そばを間接的に加熱し、前記人工乾燥工程では、前記外装ドラムの外周壁の一部に設けられた排気部から排出された使用済みの前記熱風を、前記人工乾燥装置の矩形容器状の外装ケーシングのうち、上板の中央部に設けられた上側熱風吹き出し部と、下板の中央部に設けられた下側熱風吹き出し部とから前記外装ケーシングの内部空間に導入し、かつ該外装ケーシングの下板の全域に縦横所定ピッチで設けられた複数のバイブレータによって、前記外装ケーシングの全体を常に水平状態を保持して上下振動させながら、該外装ケーシングの底部空間に配置された網板上の玄そばを人工乾燥する焙煎玄そば粉の製造方法である。 The invention according to claim 1 is an artificial drying step of artificially drying the buckwheat noodles with the shells of buckwheat using an artificial drying device, and the artificial buckwheat after the artificial drying at a temperature of 150 ° C. to 200 ° C. A roasting process for roasting for 20 minutes and a milling process for pulverizing the roasted soba noodles with the shell covering the buckwheat berries. In the roasting process, It is put into a rotating drum provided with an exterior drum with a predetermined gap, and while rotating the rotating drum, the hot air from the fan heater is caused to flow through the clearance between the rotating drum and the exterior drum, thereby indirectly passing the entrance. In the artificial drying step, the used hot air discharged from an exhaust part provided on a part of the outer peripheral wall of the exterior drum is used as an upper part of the rectangular container-shaped exterior casing of the artificial dryer. In the center of the board A plurality of hot air blowing parts introduced into the inner space of the outer casing from the upper hot air blowing part and the lower hot air blowing part provided at the center of the lower plate, and provided at predetermined vertical and horizontal pitches throughout the lower plate of the outer casing A method for producing roasted buckwheat flour that artificially dries a soba noodle on a mesh plate placed in the bottom space of the outer casing while constantly vibrating the entire outer casing while maintaining the horizontal state of the entire outer casing with the vibrator It is.

この発明によれば、焙煎工程で玄そばを焙煎(乾煎り)することで玄そばの圧縮強度が低下するため、その後の製粉工程では、すべての殻を含む玄そばを容易に粉砕することができる。また、玄そば粉に比べて日持ちが良くかつ口当たりが滑らかで、そばの殻に多く含まれるルチンは、焙煎時の熱でも分解されにくいことから、従来の玄そば粉以上の栄養価(ルチン含有量)も期待することができる。しかも、焙煎玄そば粉を含有する食品を食べたとき、焙煎した玄そば特有のカカオにも似た芳しい香りと、そばの風味ゆたかな甘みとの両方を同時に得られ、かつこの焙煎玄そば粉は直接食用に供することもできる。
さらに、複数のバイブレータによって、外装ケーシングの全体を常に水平状態を保持して上下振動させながら熱風を玄そばに吹き込むことで、網板の略すべての網目から玄そばが均一高さで間欠的に浮き上がり、網目を塞いでいた玄そばが網目から離脱し、網板の全域で玄そば間での使用済みの熱風の通り道が確保されるとともに、網板上に堆積された玄そばの撹拌も行われることで、玄そばの均一な人工乾燥を、専用の熱源を設けることなく、焙煎時に排出された使用済みの熱風を利用して短時間で行うことができる。
According to this invention , roasting (dry roasting) the soba noodles in the roasting process reduces the compressive strength of the soba noodles. Therefore, in the subsequent milling process, the soba noodles including all the shells are easily crushed. be able to. In addition, rutin, which has a longer shelf life and is smoother than Genso buckwheat and is contained in a large amount in buckwheat shells, is not easily decomposed by heat during roasting. Content) can also be expected. Moreover, when you eat foods containing roasted genba buckwheat flour, you can obtain both the fragrance similar to the cacao peculiar to roasted genba soba and the sweet taste of buckwheat at the same time. Genso buckwheat flour can also be used directly for food.
In addition, by using a plurality of vibrators, hot air is blown into the side of the genre while keeping the entire outer casing in a horizontal state and constantly vibrating up and down. The soba that floats up and closes the mesh leaves the mesh, and a used hot air passage between the soba is secured throughout the mesh board, and the soba noodles accumulated on the mesh board are also stirred. Therefore, uniform artificial drying of the soba can be performed in a short time by using the used hot air discharged at the time of roasting without providing a dedicated heat source.

ここでいう「焙煎」とは、玄そばを殻ごと加熱して乾煎り(ロースト)することをいう。加熱により、生の玄そばがカカオにも似た、香り豊かな褐色の焙煎玄そばとなる。
焙煎温度が150℃未満では、そば殻が浅煎りとなり生臭くなる。また、200℃を超えれば、そば殻が深煎りとなり焦げくさくなる。
また、玄そばの焙煎時間が18分未満では、玄そばの芯まで熱が通らない。また、20分を超えれば、玄そばが焦げてしまう。
玄そばは、焙煎時の加熱にともない含水量が減少し、玄そばの重量が減るとともに、玄そばの圧縮強度も焙煎前の玄そばより顕著に小さくなり、かたい殻を含めて簡単に粉砕できる。
The term “roasting” as used herein refers to heating and drying (roasting) the whole soba. By heating, the raw soba noodles become fragrant brown roasting soba that resembles cacao.
When the roasting temperature is less than 150 ° C., the buckwheat husk becomes lightly roasted and has a raw odor. Moreover, if it exceeds 200 degreeC, a buckwheat will be deep roasted and will become scorched.
Moreover, if the roasting time of Gensoba is less than 18 minutes, heat cannot pass to the core of Gensoba. In addition, if it exceeds 20 minutes, Gensoba will be burnt.
Genso buckwheat reduces the moisture content with heating during roasting, reduces the weight of the soba, and the compressive strength of the soba is significantly smaller than that before roasting. Can be crushed.

この焙煎工程は、玄そばの角押しを行う精選工程後から玄そばを粉砕する製粉工程までの間に行われればよい。
玄そばの焙煎装置としては、例えば焙煎用の釜(回転ドラム)を使用するものなどを採用することができる。加熱方法としては、網目状の回転ドラムにガスバーナの炎を直接あてがう直火式、孔が開いていない回転ドラムに火をあてるとともに、熱風を回転ドラムに吹き込む半熱風式、熱風の吹き込みのみにより玄そばを煎る熱風式などを採用することができる。
This roasting process should just be performed after the fine selection process which square-presses Xuan buckwheat, and the milling process which grinds Xuan buckwheat.
As the roasting device near the entrance, for example, a device using a roasting pot (rotary drum) can be adopted. As a heating method, a flame is directly applied to a mesh-shaped rotating drum, a direct-fire type, a non-perforated rotating drum is lit, a semi-hot air type in which hot air is blown into the rotating drum, and a hot air blow is used only for blowing in hot air. A hot air type that roasts soba can be used.

製粉工程とは、焙煎した玄そばを粉状にする工程である。
粉砕(製粉)装置としては、例えばロール製粉機、石臼(手動式または自動式)、衝撃式粉砕機などを採用することができる。
焙煎玄そば粉の粒度は50〜300μmである。50μm未満では食したときに焙煎玄そば粉の食感がつるつるして玄そば粉らしくない。300μmを超えれば、食したときに焙煎玄そば粉のざらつき感が強く舌に残る。
焙煎玄そば粉の用途としては、例えば、そば(麺)の原料、各種の菓子(ソフトリームのトッピング、ロールケーキ、クッキなど)の添加物、その他、各種の加工食品(お茶など)の原料が挙げられる。
The milling process is a process in which the roasted soba is powdered.
As the pulverization (milling) apparatus, for example, a roll mill, a stone mill (manual or automatic), an impact pulverizer, or the like can be employed.
The particle size of the roasted buckwheat flour is 50 to 300 μm. If it is less than 50 μm, the texture of roasted green buckwheat flour is smooth when eaten and does not look like green buckwheat flour. If it exceeds 300 μm, the texture of roasted ginsoba powder remains strong on the tongue when eaten.
Examples of uses for roasted green buckwheat flour include raw materials for buckwheat (noodles), various confectionery (soft-ream toppings, roll cakes, cookies, etc.), and other processed foods (tea, etc.) Is mentioned.

請求項1に記載の焙煎玄そば粉の製造方法によれば、玄そばを焙煎することで、玄そばの圧縮強度が小さくなる。そのため、製粉時、殻を含めて焙煎玄そばを容易に粉砕することができ、製粉時間を短縮することができる。また、焙煎により従来の玄そば粉に比べて日持ちが良く、かつ生のそば殻粉を食べたときのボソボソとした食感がなくなって口当たりが滑らかになる。さらに、殻に多量に含まれるルチンは、焙煎時の熱でも分解されにくい性質を有するため、従来の玄そば粉の製造方法の場合には粉砕時に発生した大きい殻の破片を取り除いていたが、その必要がなく、殻をすべて(丸ごと)粉砕して焙煎玄そば粉の中に含ませることができる。これにより、焙煎玄そば粉には、従来の玄そば粉より多量のルチンを含んでいる。しかも、焙煎玄そば粉を含む食品を食したとき、焙煎した玄そば特有のカカオにも似た芳しい香りと、そばの風味ゆたかな甘みとの両方を同時に得ることができる。しかも、焙煎玄そば粉は直接食用に供することもできる。
さらに、複数のバイブレータによって、外装ケーシングの全体を常に水平状態を保持して上下振動させながら熱風を玄そばに吹き込むことで、網板の略すべての網目から玄そばが均一高さで間欠的に浮き上がり、網目を塞いでいた玄そばが網目から離脱し、網板の全域で玄そば間での使用済みの熱風の通り道が確保されるとともに、網板上に堆積された玄そばの撹拌も行われることで、玄そばの均一な人工乾燥を、専用の熱源を設けることなく、焙煎時に排出された使用済みの熱風を利用して短時間で行うことができる。
According to the method for producing roasted buckwheat flour according to claim 1, the compressive strength of the buckwheat is reduced by roasting the buckwheat. Therefore, at the time of milling, the roasted soba including the shell can be easily pulverized, and the milling time can be shortened. In addition, roasting improves the shelf life compared to the conventional soba flour and makes the mouth feel smooth when eating raw buckwheat flour. Furthermore, rutin, which is contained in a large amount in the shell, has a property that it is difficult to be decomposed even by heat during roasting, so in the case of the conventional method for producing buckwheat flour, large shell fragments generated during pulverization were removed. This is not necessary, and the whole shell can be crushed (whole) and included in the roasted brown buckwheat flour. Thereby, the roasted brown buckwheat flour contains a larger amount of rutin than the conventional brown buckwheat flour. Moreover, when a food containing roasted green buckwheat flour is eaten, it is possible to obtain both a savory fragrance similar to the cacao peculiar to roasted green buckwheat and a rich sweetness of buckwheat. Moreover, the roasted brown buckwheat flour can be directly used for food.
In addition, by using a plurality of vibrators, hot air is blown into the doorside while keeping the entire outer casing in a horizontal state and constantly vibrating up and down. The soba that floats up and closes the mesh leaves the mesh, and a used hot air passage between the soba is secured throughout the mesh board, and the soba noodles accumulated on the mesh board are also stirred. Therefore, uniform artificial drying of the soba can be performed in a short time by using the used hot air discharged at the time of roasting without providing a dedicated heat source.

この発明の実施例1に係る焙煎玄そば粉の一部拡大図を含む正面図である。It is a front view containing the partially expanded view of the roasted brown buckwheat flour which concerns on Example 1 of this invention. この発明の実施例1に係る焙煎玄そば粉の製造方法のフローシートである。It is a flow sheet of the manufacturing method of roasted brown buckwheat flour according to Example 1 of the present invention. この発明の実施例1に係る焙煎玄そば粉の製造方法における焙煎工程の説明図である。It is explanatory drawing of the roasting process in the manufacturing method of the roasted brown buckwheat flour which concerns on Example 1 of this invention. この発明の実施例1に係る焙煎玄そば粉の製造方法における製粉工程の説明図である。It is explanatory drawing of the milling process in the manufacturing method of the roasted brown buckwheat flour which concerns on Example 1 of this invention.

以下、この発明の実施例を具体的に説明する。   Examples of the present invention will be specifically described below.

図1に示すように、この発明の実施例1に係る焙煎玄そば粉は、焙煎した玄そばを、そばの実を被う殻ごと粉砕した粒度が200μmのものである。焙煎玄そば粉は、焙煎により圧縮強度が低下して壊れやすくなった玄そばを殻ごと粉砕しているため、従来の玄そばを殻ごと製粉した「玄そば粉」の場合のように、粉砕時に発生した大きな殻片をふるいにより取り除く必要がない。その結果、図1の拡大図に示すように、焙煎玄そば粉の中には焙煎前とほぼ同量の殻(ルチン)が含まれる。   As shown in FIG. 1, the roasted brown buckwheat flour according to Example 1 of the present invention has a particle size of 200 μm obtained by pulverizing roasted brown buckwheat with the shell covering the buckwheat berries. Roasted Genso buckwheat flour is crushed together with the shell of the buckwheat that has become fragile due to the reduced compressive strength due to roasting. It is not necessary to remove large shell pieces generated during pulverization by sieving. As a result, as shown in the enlarged view of FIG. 1, the roasted brown buckwheat flour contains substantially the same amount of shell (rutin) as before roasting.

以下、図2のフローシートに基づき、この発明の実施例1に係る焙煎玄そば粉の製造方法を詳細に説明する。
実施例1の焙煎玄そば粉の製造方法は、刈り入れした玄そばを人工乾燥し、殻に付着したごみなどを除去する角押し後、玄そばを研磨する精選工程と、精選した玄そばを焙煎する焙煎工程と、焙煎した玄そばを粉砕し、焙煎玄そば粉を製造する製粉工程とを備えている。
Hereinafter, based on the flow sheet of FIG. 2, the manufacturing method of the roasted brown buckwheat flour according to Example 1 of the present invention will be described in detail.
The manufacturing method of the roasted brown buckwheat flour of Example 1 is a method of artificially drying the harvested buckwheat noodles, pressing the corners to remove the dust adhering to the shell, and then polishing the ground buckwheat. It comprises a roasting process for roasting and a milling process for pulverizing the roasted green buckwheat to produce roasted green buckwheat flour.

以下、各工程を具体的に説明する。
精選工程の人工乾燥時には、刈り入れした玄そばを所定温度でボイラ加熱により乾燥する。
また、ごみ取り時には、玄そばの殻に付着したそばの茎や葉、泥や塵、砂利、小石、他の植物の種子などをごみ取り機や石取り機によって除去する。
Hereafter, each process is demonstrated concretely.
At the time of artificial drying in the selection process, the cut soba is dried by boiler heating at a predetermined temperature.
At the time of garbage removal, buckwheat stems and leaves, mud and dust, gravel, pebbles, seeds of other plants, etc. adhering to the shell of Genso are removed by a dust remover or a stone remover.

図2のフローシートおよび図3に示すように、焙煎工程では、精選した玄そばを、熱風式の焙煎装置10の回転ドラム11に投入し、回転ドラム11を所定の速度で回転させながら、回転ドラム11の底部に設けられたファンヒータ12により発生した熱風を、回転ドラム11に吹き込みながら、玄そばを180℃で19分間焙煎する。これにより、玄そばに含まれた有機成分が熱分解され、炭酸ガス(二酸化炭素)と水蒸気とが発生する。これらの炭酸ガスおよび水蒸気の圧力によって、加熱中の玄そばが膨らむとともに香りを含む油分が発生する。焙煎中、玄そばは苦味、香りなどの成分が変化する。このような条件で玄そばを焙煎することで、カカオにも似た芳しい香り(アロマ)と、そばの風味(フレーバー)ゆたかな甘みとの両方を同時に得ることができる。しかも、玄そばの殻に多量に含まれるルチンは、焙煎時の熱(180℃)では、ほとんど分解されることがない。こうして、ルチンの含有量が生の玄そばとほとんどかわらない焙煎玄そばが得られる。   As shown in the flow sheet of FIG. 2 and FIG. 3, in the roasting process, carefully selected genba soba is put into the rotating drum 11 of the hot-air roasting apparatus 10 while rotating the rotating drum 11 at a predetermined speed. The soba noodles are roasted at 180 ° C. for 19 minutes while blowing hot air generated by the fan heater 12 provided at the bottom of the rotating drum 11 into the rotating drum 11. Thereby, the organic component contained in the genba is thermally decomposed, and carbon dioxide (carbon dioxide) and water vapor are generated. The pressure of these carbon dioxide gas and water vapor swells the heated soba and generates oil containing a scent. During roasting, the ingredients such as bitterness and aroma change in Genso. By roasting Gensoba under such conditions, it is possible to obtain both a fragrant fragrance (aroma) similar to cacao and a rich sweetness of soba (flavor). In addition, rutin contained in a large amount in the shell of Genso is hardly decomposed by heat (180 ° C.) during roasting. In this way, roasted soba noodles in which the content of rutin is almost the same as raw soba noodles are obtained.

なお、図3の二点鎖線に示すように、回転ドラム11の外周に、回転ドラム11を所定隙間を空けて覆うように大型の外装ドラム13を設け、ファンヒータ12の熱を回転ドラム11と外装ドラム13との隙間に流すことにより、玄そばを間接的に加熱するようにしてもよい。その場合、外装ドラム13の外周壁の一部に設けられた排気部13aから排出された使用済みの熱風を、人工乾燥工程で使用される玄そばの人工乾燥装置14に導入し、玄そばを人工乾燥してもよい。
人工乾燥装置14は、矩形容器状の外装ケーシング15の底部空間に、玄そばが通過しないサイズの多数の小孔16aが形成された網板16を載置し、その上に玄そばを載置する。また、外装ケーシング15の上板の中央部に上側熱風吹き出し部17を設け、前記使用済みの熱風を外装ケーシング15の上部空間に吹き込むとともに、外装ケーシング15の下板の中央部に下側熱風吹き出し部18を設け、ここから使用済みの熱風を外装ケーシング15の下板と網板16との隙間に吹き込み、網板16の網目から使用済み熱風を玄そばに吹き付け、これを人工乾燥させる。その場合、外装ケーシング15の底板に、外装ケーシング15を上下方向に振動させるバイブレータ19を、底板の全域に縦横所定ピッチで複数設け、これにより外装ケーシング15の全体を常に略水平状態を保持して上下振動させながら熱風を玄そばに吹き込むようにすれば、網板16の略すべての網目から玄そばが均一高さで間欠的に浮き上がり、網目を塞いでいた玄そばが網目から離脱し、網板16の全域で玄そば間での使用済みの熱風の通り道が確保されるとともに、網板16上に堆積された玄そばの撹拌も行われることで、玄そばの均一な人工乾燥を、専用の熱源を設けることなく、短時間で行うことができる。
As shown by a two-dot chain line in FIG. 3, a large exterior drum 13 is provided on the outer periphery of the rotating drum 11 so as to cover the rotating drum 11 with a predetermined gap, and heat from the fan heater 12 is exchanged with the rotating drum 11. The soba noodles may be indirectly heated by flowing through the gap with the exterior drum 13. In that case, the used hot air discharged from the exhaust part 13a provided in a part of the outer peripheral wall of the exterior drum 13 is introduced into an artificial drying device 14 used in the artificial drying process, Artificial drying may be used.
The artificial drying device 14 places a net plate 16 in which a large number of small holes 16a having a size that does not allow the passage of the soba noodles on the bottom space of the rectangular container-shaped outer casing 15, and places the soba noodles thereon. To do. Further, an upper hot air blowing section 17 is provided at the center of the upper plate of the outer casing 15, and the used hot air is blown into the upper space of the outer casing 15, and the lower hot air blowing is blown into the center of the lower plate of the outer casing 15. A portion 18 is provided, from which used hot air is blown into the gap between the lower plate of the outer casing 15 and the mesh plate 16, and used hot air is blown from the mesh of the mesh plate 16 to the entrance, and this is artificially dried. In that case, a plurality of vibrators 19 that vibrate the outer casing 15 in the vertical direction are provided on the bottom plate of the outer casing 15 at predetermined vertical and horizontal pitches in the entire area of the bottom plate, so that the entire outer casing 15 is always kept substantially horizontal. If hot air is blown into the side of the genius while vibrating up and down, the genus side rises from almost all the meshes of the mesh plate 16 at a uniform height, and the ginsoba that has blocked the meshes leaves the mesh. In addition to securing the passage of used hot air between the soba noodles across the entire board 16, and also stirring the soba noodles accumulated on the mesh board 16, uniform artificial drying of the soba noodles is dedicated. This can be done in a short time without providing a heat source.

図2のフローシートおよび図4に示すように、製粉工程では、得られた焙煎玄そばを石臼装置20に投入し、その後、石臼21を回転モータ21により所定速度で回転して粒度200μmの焙煎玄そば粉が製造される。このとき、焙煎により圧縮強度が低下した殻を含め、玄そばを容易に粉砕することができる。これにより、従来法のように製粉後に殻の大きい破片を取り除くことなく、殻をすべて(丸ごと)粉砕して焙煎玄そば粉に含ませることができ、製粉時間を短縮することができる。また、焙煎により従来の玄そば粉に比べて日持ちが良く、かつ生のそば殻粉を食べたときのボソボソとした食感がなくなって口当たりが滑らかになる。しかも、殻に含まれるルチンは、上述したように焙煎時の熱でも分解されにくい性質を有するため、焙煎玄そば粉には、従来の玄そば粉以上の栄養価(ルチンの含有量)を期待することができる。
こうして製造された焙煎玄そば粉は、例えば、トッピング用パウダとしてソフトクリームにふりかけて、食べることができる。また、焙煎玄そば粉は直接食用に供することもできる。
As shown in the flow sheet of FIG. 2 and FIG. 4, in the milling process, the obtained roasted brown soba is put into the stone mill device 20, and then the stone mill 21 is rotated at a predetermined speed by the rotary motor 21 to have a particle size of 200 μm. Roasted brown buckwheat flour is produced. At this time, including the shell whose compressive strength has been reduced by roasting, the soba can be easily crushed. Thereby, the whole shell can be crushed (whole) and included in the roasted brown buckwheat flour without removing large pieces of the shell after milling as in the conventional method, and the milling time can be shortened. In addition, roasting improves the shelf life compared to the conventional soba flour and makes the mouth feel smooth when eating raw buckwheat flour. In addition, as mentioned above, rutin contained in the shell has the property that it is difficult to be decomposed even by heat during roasting, so the roasted brown buckwheat flour has a nutritional value (content of rutin) higher than that of conventional brown buckwheat flour. Can be expected.
The roasted brown buckwheat flour thus produced can be eaten by, for example, sprinkling over soft cream as a powder for topping. In addition, the roasted brown buckwheat flour can be directly used for food.

この発明は、焙煎した玄そば特有の香りや風味を有することで、そば粉の新しい用途開発が可能な技術として有用である。   The present invention is useful as a technology capable of developing a new application of buckwheat flour because it has aroma and flavor peculiar to roasted Genso buckwheat.

10 焙煎装置、
20 石臼装置(製粉装置)。
10 roasting equipment,
20 Stone milling device (milling device).

Claims (1)

そばの実に殻が付いた刈り入れ後の玄そばを人工乾燥装置により人工乾燥する人工乾燥工程と、
人工乾燥後の玄そばを150℃〜200℃の温度で18〜20分間焙煎する焙煎工程と、
焙煎した玄そばを、そばの実を被う殻ごと粉砕する製粉工程とを備え
前記焙煎工程では、人工乾燥後の玄そばを、外周に所定隙間を空けて外装ドラムが設けられた回転ドラムに投入し、該回転ドラムを回転させながら、ファンヒータの熱風を前記回転ドラムと前記外装ドラムとの隙間に流すことによって玄そばを間接的に加熱し、
前記人工乾燥工程では、前記外装ドラムの外周壁の一部に設けられた排気部から排出された使用済みの前記熱風を、前記人工乾燥装置の矩形容器状の外装ケーシングのうち、上板の中央部に設けられた上側熱風吹き出し部と、下板の中央部に設けられた下側熱風吹き出し部とから前記外装ケーシングの内部空間に導入し、かつ該外装ケーシングの下板の全域に縦横所定ピッチで設けられた複数のバイブレータによって、前記外装ケーシングの全体を常に水平状態を保持して上下振動させながら、該外装ケーシングの底部空間に配置された網板上の玄そばを人工乾燥する焙煎玄そば粉の製造方法。
An artificial drying process in which the dried buckwheat noodles with the shells of the buckwheat are artificially dried using an artificial drying device;
A roasting step of roasting the artificially dried soba noodles at a temperature of 150 ° C. to 200 ° C. for 18 to 20 minutes;
A milling process that crushes roasted Gensoba together with shells that cover the buckwheat berries ,
In the roasting step, the artificial soba noodles after artificial drying are put into a rotating drum provided with an exterior drum with a predetermined gap on the outer periphery, and while rotating the rotating drum, hot air from a fan heater is sent to the rotating drum. Indirectly heated the soba by flowing in the gap with the outer drum,
In the artificial drying step, the used hot air discharged from the exhaust part provided on a part of the outer peripheral wall of the exterior drum is used as the center of the upper plate of the rectangular container-shaped exterior casing of the artificial dryer. The upper hot air blowing part provided in the part and the lower hot air blowing part provided in the center part of the lower plate are introduced into the inner space of the outer casing, and a predetermined vertical and horizontal pitch is provided throughout the lower plate of the outer casing. A roasting oven that artificially dries the soba noodles on the mesh plate disposed in the bottom space of the outer casing while keeping the entire outer casing in a horizontal state and constantly vibrating vertically by a plurality of vibrators provided in A method for producing buckwheat flour.
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