JP4390243B2 - Starch food swelling agent - Google Patents

Starch food swelling agent Download PDF

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JP4390243B2
JP4390243B2 JP2000372473A JP2000372473A JP4390243B2 JP 4390243 B2 JP4390243 B2 JP 4390243B2 JP 2000372473 A JP2000372473 A JP 2000372473A JP 2000372473 A JP2000372473 A JP 2000372473A JP 4390243 B2 JP4390243 B2 JP 4390243B2
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dolomite
dough
less
powder
carbon dioxide
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JP2002171896A (en
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輝男 浦野
千晶 横田
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村樫石灰工業株式会社
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Description

【0001】
【発明の属する技術分野】
本発明は、パン、ケーキ、その他の焼き菓子や蒸し菓子などの澱粉質食品の膨張剤に関するものである。
【0002】
【従来の技術】
食品衛生法で言う膨張剤とは、食品添加物の1種で、パン、ケーキ、その他の食品の製造工程で添加し、1種又は2種以上の成分による化学変化によって発生する炭酸ガス、もしくはアンモニアガスの力で食品生地を膨張させ、多孔性にすると共に、食感を向上させるものである。単独で用いられる膨張剤として塩化アンモニウム、炭酸アンモニウム、炭酸水素アンモニウム、炭酸水素ナトリウム、硫酸アルミニウムアンモニウムなどがあり、これらは、食品に添加混合し加熱による膨張剤の熱分解により発生するガスを利用している。また上記単独の膨張剤に化学変化を与える酸性成分など添加した製剤がベイキングパウダーとして知られている。
【0003】
【発明が解決しようとする課題】
本発明は、膨張性はもとより、食感の優れた膨張剤を提供することを目的とする。
【0004】
【課題を解決するための手段】
本発明に係る請求項1記載の澱粉質食品の膨張剤は、平均粒子径D506.0μm以下、最大粒子径20.0μm以下であるドロマイト乾燥粉体1モルに対してグルコノデルタラクトン乾燥粉体2.3〜4.5モルの割合で混合してなる澱粉質食品の膨張剤であって、加熱することにより系内で生成するグルコン酸で前記ドロマイトを分解反応させて炭酸ガスを発生することを特徴とする澱粉質食品の膨張剤である。
本発明に係る請求項2記載の発明は、次の工程(1)〜(3)を含むことを特徴とする澱粉質食品の製造方法である。
(1)平均粒子径D506.0μm以下、最大粒子径20.0μm以下であるドロマイト乾燥粉体1モルに対してグルコノデルタラクトン乾燥粉体2.3〜4.5モルの割合で混合して澱粉質食品の膨張剤を調製する。
(2)小麦粉に対して工程(1)の膨張剤を1〜5%加え、室温で混練して炭酸ガスの発生なしに生地を調製する。
(3)工程(2)で調製した生地を加熱して前記ドロマイトを系内で生成するグルコン酸で分解反応させて炭酸ガスを発生させて膨張させ、そして焼成あるいは蒸して澱粉質食品を製造する。
本発明に係る請求項3記載の発明は、請求項2記載の製造方法により製造されたことを特徴とする澱粉質食品である。
【0005】
パン、ケーキ、その他の食品の生地調製に際し、小麦粉に対しこの膨張剤を1〜5%添加し加熱処理すると、温度上昇に伴いグルコノデルタラクトンが加水分解しグルコン酸に変化し、その酸がドロマイトと反応する際に炭酸ガスを発生することによりパン、ケーキ、その他の食品の生地を膨張させ、多孔性にすると共に、製品の食感を向上させる。
【0006】
ドロマイト[Ca・Mg(CO3)2] は、カルシウム(Ca)とマグネシウム(Mg)のモル比が1対1(重量比で約2対1)の原子レベルで均一に混合している天然炭酸塩鉱物である。近年食物栄養素としてミネラル成分の重要性がクローズアップされ、しかも、CaとMgの摂取比率が重量比で2:1であることが最良であることから注目されている。食品素材用ドロマイトは、食した場合の歯ざわり、舌ざわりから粉末度は細かい程よいが、平均粒子径D506.0μm以下、最大粒子径20.0μm以下が望ましい。ドロマイトは無味、無臭で吸湿性がなく、各種食品に混合使用することが可能である。
【0007】
また、グルコノデルタラクトン(分子式C6H10O6)は、グルコン酸から1分子の水が脱水された分子内エステルで、食品添加物に許可されている。このものは、乾燥粉末として得られ、粉末自身は酸性でなく、水溶液中で徐々に加水分解してグルコン酸を生成する。加水分解の割合、速度は温度、pHによって異なり、温度が高いほど、pHが高アルカリほどグルコン酸への変換が高くなる。このようなグルコノデルタラクトンの特性を利用して炭酸水素ナトリウムを混合した膨張剤製剤も市販されているが、炭酸水素ナトリウムは水溶性であり生地に添加して加水・混練直後の低温時から反応を開始し炭酸ガスを発生するため、生地の成型、膨張性の制御に問題を有している。
【0008】
一方、ドロマイトは、アルカリ性炭酸塩化合物であるが、炭酸水素ナトリウムのような水溶性でなく、また、炭酸カルシウム、炭酸マグネシウムに比べ酸との反応性が低く、乾燥粉体である場合、グルコノデクタラクトンの乾燥粉体との混合適性に優れ、粉体同士で反応することなく、長期保存が可能である。したがって、ドロマイトを系内で生成するグルコン酸で分解反応させ炭酸ガスを効率よく発生させるには、ドロマイトの粒子を出来るだけ細かくする。具体的には平均粒子径D506.0μm以下、最大粒子径20.0μm以下が好ましく、さらに好ましくはD502.0μm以下、最大粒子径10.0μm以下とする。
【0009】
ドロマイトとグルコン酸は、生地調製後、焼き上げ又は蒸し上げの工程時の温度上昇に伴い次の反応式で反応し炭酸ガスを発生する。
Ca・Mg(CO3)2+4C6H12O7→C12H22CaO14・H2O+C12H22MgO14・nH2O+2CO2
【0010】
上記のように、グルコノデルタラクトンが水溶液中で加水分解する反応を経て生成したグルコン酸とドロマイトの反応で炭酸ガスを生じる。この際グルコノデルタラクトンの加水分解反応は温度依存性が高く、20℃近辺の常温では遅く、温度の上昇とともに急速に進行し60℃になるとほぼ全量がグルコン酸に変換する。ドロマイトの分解反応も同様に温度依存性が高いことから、低温で行う生地の混練、成型時には炭酸ガスが発生しないので、生地調製時の炭酸ガス損失がなく、焼き上げや蒸し上げ時の温度上昇と共に炭酸ガス発生が多くなり気泡の形成にむらがなく、気泡の大きさは均等で、緻密な製品にしあがるので、食感のよい製品を得ることが出来る。ドロマイトとグルコン酸の混合比率は、前記反応式によればドロマイト1モルに対しグルコン酸4モルの割合になるが、後述の実施例に見るように、どちらか一方が過剰であっても良い。
【0011】
また、生成したドロマイトのグルコンサン塩、すなわち、グルコン酸カルシウム、グルコン酸マグネシウムは、生体吸収性の良いカルシウム剤、マグネシウム剤として栄養強化に役立つものである。
【0012】
本発明の膨張剤は生地作成過程のうちどの段階においても練り込みすることができ、また混練時間にとらわれることなく均質な生地を作成することができる。
【0013】
【発明の実施の形態】
以下、実施例によって本発明組成物の具体例及びその効果を説明するが、本発明は下記の実施例に限定されるものではない。
【0014】
【実施例1】
平均粒子径D502.5μm、最大粒子径10.0μmの食品用ドロマイト1モルに対し藤沢薬品工業株式会社製グルコノデルタラクトン粉末4モル、即ちドロマイト184.40gにグルコノデルタラクトン粉末712.56gをミキサーで混合し膨張剤896.96gを得た。
【0015】
小麦粉(薄力粉)100重量部、砂糖40重量部、バター50重量部、鶏卵40重量部に実施例1の膨張剤を1,2又は3重量部加え、室温で混練しクッキーの生地を調製した。この生地を直径30mm、長さ30cmの麺棒を使用し厚さ5mmに伸展させ、ワイヤ−カットし成型した後オーブンにて200℃、3分間焼成しクッキーを作った。パネラー10人に試食してもらい、下記の4段階により評価した結果の平均を表1に示した。
膨張性:◎大きい ○やや大きい △やや小さい ▲小さい食感: ◎非常に優れている ○優れている △やや優れている ▲劣っている
【0016】
【表1】

Figure 0004390243
【0017】
本発明の膨張剤の添加量を増加して行くことにより生地の膨張性を増し、また焼成時に生地が上方に膨張する性質を有している為、焼成後は保形成に優れかつ型崩れを起こさない利点を有していることがわかった。
【0018】
【実施例2】
平均粒子径D502.5μm、最大粒子径10.0μmの食品用ドロマイト1モルに対し藤沢薬品工業株式会社製グルコノデルタラクトン粉末4モル、4.3モル、4.5モル、即ちドロマイト粉184.40gにグルコノデルタラクトン粉末712.56g、766.00g、801.63g、をミキサーで混合しグルコノデルタラクトン重量の異なる3種の膨張剤896.96g、950.41g、986.03gを調製した。
【0019】
【実施例3】
平均粒子径D502.5μm、最大粒子径10.0μmの食品用ドロマイト1.3モル、1.5モル、1.7モルに対し藤沢薬品工業株式会社製グルコノデルタラクトン粉末4モル、即ちドロマイト239.72g、276.62g、313.50gにグルコノデルタラクトン粉末712.56gをミキサーで混合しドロマイト重量の異なる3種の膨張剤952.28g、989.18g、1026.06gを得た。
【0020】
小麦粉(薄力粉)100重量部、砂糖40重量部、バター50重量部、鶏卵40重量部に実施例2又は実施例3の膨張剤を3重量部加え、室温で混練しクッキーの生地を調製した。この生地を直径30mm、長さ30cmの麺棒を使用し厚さ5mmに伸展させ、ワイヤ−カットし成型した後オーブンにて200℃、3分間焼成しクッキーを作成した。パネラー10人に試食してもらい、下記の4段階により評価した結果の平均を表2に示した。
食感: ◎非常に優れている ○優れている △やや優れている ▲劣っている
【0021】
【表2】
Figure 0004390243
【0022】
ドロマイト量に対しグルコノデルタラクトン量を増加させていくと、酸味を感じるようになったが食感は非常に優れていた。一方、グルコノデルタラクトン量に対しドロマイト量を増加させても食感と食味に影響はなかった。従って必要に応じて食感に影響を及ぼすことがなく製品の酸味を増すことが可能であり、また食感と食味に影響を及ぼすことなく栄養強化を目的としたドロマイト粉の増量も可能であることがわかった。従って、用途に応じてドロマイト又はグルコノデルタラクトンを過剰に添加することができる。
【0023】
【実施例4】
平均粒子径D502.5μm、最大粒子径10.0μmの食品用ドロマイト1モルに対し藤沢薬品工業株式会社製、グルコノデルタラクトン粉末4モル、すなわちドロマイト184.40gにグルコノデルタラクトン粉末712.56gをミキサーで混合し膨張剤896.96gを得た。
【0024】
薄力粉100重量部、砂糖50重量部、蒸留水100重量部に実施例4の膨張剤1,2又は3重量部加え、室温で混練し蒸しパンの生地を調製した。この生地を100mLの硝子メスシリンダ−に50mL流し込み、温度120℃、圧力1.0kgf/cm2の蒸し器に20分間放置を行い蒸しパンを作成した。膨張率は元の生地に対する加熱後の体積の比率を求めた。また膨張性と食感はパネラー10人に試食してもらい、下記の4段階により評価した結果の平均を表3に示した。
膨張性:◎大きい ○やや大きい △やや小さい ▲小さい 食感: ◎非常に優れている ○優れている △やや優れている ▲劣っている
【0025】
【表3】
Figure 0004390243
【0026】
この結果本発明の膨張剤の添加により薄力粉量に対して水分量を多く含有する蒸しパンのようなペースト状の生地においても膨化性を有しかつ膨張剤の添加量を増加して行くことによりかさを増ししかも蒸しパン内部に均一に気泡を形成するため食感の向上を図ることができることがわかった。また保形性に優れ型崩れをおこさない性質を有しているため焼成時に生地が上方に膨張しても気密な性質を維持していることがわかった。また、食味は上記膨張剤添加量1,2,3重量部のいずれにおいても良好であった。
【0027】
【実施例5】
食品用ドロマイトをホソカワミクロン製ホソカワ/アルピネ400/4AFGジェットミルにより、平均粒子径D502.0μm;最大粒子径8.8μm;D505.8μm;最大粒子径18.9μm;D506.7μm;最大粒子径26.1μmの3種のドロマイトを調製した。調製された食品用ドロマイト1モルに対し藤沢薬品工業株式会社製、グルコノデルタラクトン粉末4モル、すなわちドロマイト粉184.40gにグルコノデルタラクトン粉末712.56gをミキサーで混合し上記3種の粒径の異なるドロマイト粉を配合した膨張剤896.96gを得た。
【0028】
薄力粉100重量部、砂糖50重量部、蒸留水100重量部に平均粒径の異なる3種の膨張剤3重量部を加え、室温で混練し蒸しパンの生地を調製した。この生地を100mLの硝子メスシリンダ−に50mL流し込み、温度120℃、圧力1.0kgf/cm2の蒸し器に20分間放置し、蒸しパンを作成した。膨張率は元の生地に対する加熱後の体積の比率を求めた。また膨張性と食感はパネラー10人に試食してもらい、下記の4段階により評価した結果の平均を表4に示した。膨張性:◎大きい ○やや大きい △やや小さい ▲小さい 食感: ◎非常に優れている ○優れている △やや優れている ▲劣っている
【0029】
【表4】
Figure 0004390243
【0030】
膨張剤中のドロマイトは、粒径を細粒化することにより生地中における極めて細かい気泡の形成及び均密な膨張性を示すことが分かった。また蒸し上げ後の形状は微粉ほど安定しており、かつ食感が良くなることが分かった。平均粒径6.7μm、最大粒子径26.1μmのドロマイトを添加した蒸しパンは膨張性に乏しく、均質な生地を得ることができなかったためソフト感に欠けるので、平均粒子径6.0μm以下、最大粒径20μm以下にするのが良い。
【0031】
【発明の効果】
膨張性はもとより、食感の優れた澱粉質食品の膨張剤である。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a swelling agent for starchy foods such as bread, cake, other baked confectionery and steamed confectionery.
[0002]
[Prior art]
The swelling agent referred to in the Food Sanitation Law is a kind of food additive, which is added in the manufacturing process of bread, cake, and other foods, and carbon dioxide gas generated by chemical change by one or more ingredients, or The food dough is expanded by the power of ammonia gas to make it porous and improve the texture. Ingredients used alone include ammonium chloride, ammonium carbonate, ammonium hydrogen carbonate, sodium hydrogen carbonate, ammonium ammonium sulfate, etc., which use gas generated by thermal decomposition of the inflating agent added to food and heated. ing. In addition, a preparation in which an acidic component that gives a chemical change to the single swelling agent is added is known as baking powder.
[0003]
[Problems to be solved by the invention]
An object of this invention is to provide the swelling agent excellent in food texture as well as expansibility.
[0004]
[Means for Solving the Problems]
The swelling agent for starchy food according to claim 1 of the present invention is a glucono delta lactone dried with respect to 1 mol of dolomite dry powder having an average particle diameter D 50 of 6.0 μm or less and a maximum particle diameter of 20.0 μm or less. It is an expander for starchy foods mixed at a ratio of 2.3 to 4.5 moles of powder, which generates carbon dioxide by decomposing the dolomite with gluconic acid produced in the system by heating. It is a swelling agent for starchy foods.
Invention of Claim 2 which concerns on this invention is a manufacturing method of the starchy foodstuff characterized by including the following process (1)-(3).
(1) Mixing at a ratio of 2.3 to 4.5 moles of glucono delta lactone dry powder to 1 mole of dolomite dry powder having an average particle diameter D 50 of 6.0 μm or less and a maximum particle diameter of 20.0 μm or less Then, a swelling agent for starchy food is prepared.
(2) Add 1-5% of the expansion agent of step (1) to wheat flour and knead at room temperature to prepare dough without generation of carbon dioxide.
(3) The dough prepared in step (2) is heated to decompose the dolomite with gluconic acid generated in the system to generate carbon dioxide gas, expand, and baked or steamed to produce starchy food. .
According to a third aspect of the present invention, there is provided a starchy food produced by the production method according to the second aspect.
[0005]
When preparing dough for breads, cakes, and other foods, if 1-5% of this swelling agent is added to the flour and heat-treated, gluconodeltalactone is hydrolyzed and converted to gluconic acid as the temperature rises. When reacting with dolomite, carbon dioxide is generated to expand the dough of breads, cakes and other foods, making them porous and improving the texture of the product.
[0006]
Dolomite [Ca · Mg (CO 3 ) 2 ] is a natural carbonate that is uniformly mixed at an atomic level with a molar ratio of calcium (Ca) to magnesium (Mg) of 1: 1 (about 2: 1 by weight). It is a salt mineral. In recent years, the importance of mineral components as food nutrients has been highlighted, and attention has been focused on the fact that the intake ratio of Ca and Mg is 2: 1 by weight. The fineness of the dolomite for food material is better as the texture and texture of the food eaten, but it is desirable that the average particle size D 50 is 6.0 μm or less and the maximum particle size is 20.0 μm or less. Dolomite is tasteless, odorless, non-hygroscopic and can be used in a variety of foods.
[0007]
Gluconodelta lactone (molecular formula C 6 H 10 O 6 ) is an intramolecular ester obtained by dehydrating one molecule of water from gluconic acid, and is permitted as a food additive. This is obtained as a dry powder, the powder itself is not acidic, and gradually hydrolyzes in an aqueous solution to produce gluconic acid. The rate and rate of hydrolysis vary with temperature and pH. The higher the temperature, the higher the pH and the higher the alkali, the higher the conversion to gluconic acid. A swelling agent formulation in which sodium hydrogen carbonate is mixed using such characteristics of glucono delta lactone is also commercially available, but sodium hydrogen carbonate is water-soluble and added to the dough from the low temperature immediately after hydration and kneading. Since the reaction is started and carbon dioxide gas is generated, there is a problem in the molding of the dough and the control of the expansibility.
[0008]
On the other hand, dolomite is an alkaline carbonate compound, but it is not water-soluble like sodium hydrogen carbonate, and is less reactive with acid than calcium carbonate and magnesium carbonate. Excellent suitability for mixing with dry powder of Kutalactone, and can be stored for a long time without reacting with each other. Therefore, in order to decompose dolomite with gluconic acid generated in the system and generate carbon dioxide efficiently, the particles of dolomite are made as fine as possible. Specifically, an average particle diameter D 50 of 6.0 μm or less and a maximum particle diameter of 20.0 μm or less are preferable, and a D 50 of 2.0 μm or less and a maximum particle diameter of 10.0 μm or less are more preferable.
[0009]
Dolomite and gluconic acid react with the following reaction formula to generate carbon dioxide as the temperature rises during the baking or steaming process after the dough is prepared.
Ca · Mg (CO 3 ) 2 + 4C 6 H 12 O 7 → C 12 H 22 CaO 14 · H 2 O + C 12 H 22 MgO 14 · nH 2 O + 2CO 2
[0010]
As described above, carbon dioxide gas is generated by the reaction of gluconic acid and dolomite produced through a reaction in which gluconodeltalactone is hydrolyzed in an aqueous solution. At this time, the hydrolysis reaction of glucono delta lactone is highly temperature dependent, slow at room temperature around 20 ° C., proceeds rapidly with increasing temperature, and almost reaches the total amount when converted to gluconic acid at 60 ° C. Since the decomposition reaction of dolomite is also highly temperature dependent, carbon dioxide is not generated during kneading and molding of the dough at low temperatures, so there is no carbon dioxide loss during dough preparation and the temperature rises during baking and steaming. Generation of carbon dioxide gas increases, and there is no uneven formation of bubbles, and the size of the bubbles is uniform and a dense product is obtained, so that a product with a good texture can be obtained. According to the above reaction formula, the mixing ratio of dolomite and gluconic acid is a ratio of 4 mol of gluconic acid to 1 mol of dolomite, but either one may be excessive as shown in the examples described later.
[0011]
In addition, the gluconate salt of dolomite produced, that is, calcium gluconate and magnesium gluconate, is useful for enhancing nutrition as a calcium and magnesium agent with good bioabsorbability.
[0012]
The expansion agent of the present invention can be kneaded at any stage of the dough producing process, and can produce a homogeneous dough regardless of the kneading time.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, although the specific example and effect of this invention composition are demonstrated by an Example, this invention is not limited to the following Example.
[0014]
[Example 1]
4 mol of glucono delta lactone powder made by Fujisawa Pharmaceutical Co., Ltd., that is, 184.40 g of dolomite powder, and glucono delta lactone powder for 1 mol of dolomite powder for food having an average particle size D 50 of 2.5 μm and a maximum particle size of 10.0 μm 712.56 g was mixed with a mixer to obtain 896.96 g of a swelling agent.
[0015]
Cookie dough was prepared by adding 1, 2 or 3 parts by weight of the expansion agent of Example 1 to 100 parts by weight of wheat flour (soft flour), 40 parts by weight of sugar, 50 parts by weight of butter and 40 parts by weight of eggs and kneading at room temperature. This dough was stretched to a thickness of 5 mm using a rolling pin with a diameter of 30 mm and a length of 30 cm, wire-cut and molded, and then baked in an oven at 200 ° C. for 3 minutes to produce cookies. Table 1 shows the average of the results obtained by having 10 panelists sample and evaluating according to the following four levels.
Expansibility: ◎ Large ○ Slightly large △ Slightly small ▲ Small texture: ◎ Very good ○ Excellent △ Somewhat excellent ▲ Inferior [0016]
[Table 1]
Figure 0004390243
[0017]
Increasing the amount of the expansion agent of the present invention increases the expansibility of the dough, and since the dough has the property of expanding upward during baking, it is excellent in preserving and losing shape after baking. It has been found that it has the advantage of not causing it.
[0018]
[Example 2]
Fujisawa Pharmaceutical Co., Ltd. glucono delta lactone powder 4 mol, 4.3 mol, 4.5 mol, that is, dolomite with respect to 1 mol of food dolomite powder having an average particle size D 50 of 2.5 μm and a maximum particle size of 10.0 μm Three types of swelling agents 896.96 g, 950.41 g, and 986. gluconodeltalactone powder are mixed with 84.40 g of flour 1 and 712.56 g, 766.00 g, and 801.63 g of gluconodeltalactone powder using a mixer. 03 g was prepared.
[0019]
[Example 3]
An average particle size D 50 of 2.5 μm and a maximum particle size of 10.0 μm, dolomite powder for foods 1.3 mol, 1.5 mol, 1.7 mol, glucono delta lactone powder 4 mol made by Fujisawa Pharmaceutical Co., Ltd., That is, 71.56 g of dolomite powder , 276.62 g, and 313.50 g were mixed with 712.56 g of glucono delta lactone powder by a mixer to obtain 95.28 g, 989.18 g, and 1026.06 g of three kinds of expansion agents having different dolomite weights. It was.
[0020]
3 parts by weight of the expansion agent of Example 2 or Example 3 was added to 100 parts by weight of wheat flour (soft flour), 40 parts by weight of sugar, 50 parts by weight of butter and 40 parts by weight of eggs, and kneaded at room temperature to prepare a cookie dough. This dough was stretched to a thickness of 5 mm using a rolling pin having a diameter of 30 mm and a length of 30 cm, wire-cut and molded, and then baked in an oven at 200 ° C. for 3 minutes to prepare cookies. Table 2 shows the average of the results obtained by having 10 panelists taste and evaluating the following four levels.
Texture: ◎ Excellent ○ Excellent △ Slightly superior ▲ Inferior [0021]
[Table 2]
Figure 0004390243
[0022]
When the amount of glucono delta lactone was increased with respect to the amount of dolomite, the acidity was felt, but the texture was very good. On the other hand, even if the amount of dolomite was increased with respect to the amount of glucono delta lactone, the texture and taste were not affected. Therefore, it is possible to increase the acidity of the product without affecting the texture as necessary, and it is also possible to increase the amount of dolomite powder for the purpose of enhancing nutrition without affecting the texture and taste. I understood it. Therefore, dolomite or glucono delta lactone can be added in excess depending on the application.
[0023]
[Example 4]
Fujisawa Pharmaceutical Co., Ltd., 4 mol of glucono delta lactone powder, that is, 184.40 g of dolomite powder , glucono delta lactone with respect to 1 mol of dolomite powder for food having an average particle size D 50 of 2.5 μm and a maximum particle size of 10.0 μm 712.56 g of the powder was mixed with a mixer to obtain 896.96 g of an expanding agent.
[0024]
Steaming bread dough was prepared by adding 100 parts by weight of flour, 50 parts by weight of sugar and 100 parts by weight of distilled water, adding 1, 2 or 3 parts of the expansion agent of Example 4 at room temperature. 50 mL of this dough was poured into a 100 mL glass graduated cylinder and allowed to stand for 20 minutes in a steamer at a temperature of 120 ° C. and a pressure of 1.0 kgf / cm 2 to prepare steamed bread. The coefficient of expansion was determined as the ratio of the volume after heating to the original dough. In addition, Table 3 shows the average of the results of evaluation of the expansibility and texture by 10 panelists who were evaluated according to the following 4 levels.
Expansibility: ◎ Large ○ Slightly large △ Slightly small ▲ Small Texture: ◎ Very good ○ Excellent △ Somewhat excellent ▲ Inferior [0025]
[Table 3]
Figure 0004390243
[0026]
As a result, by adding the expansion agent of the present invention, the paste-like dough such as steamed bread containing a large amount of water with respect to the amount of the flour flour has swelling property and increases the addition amount of the expansion agent. It was found that the texture can be improved because the bubbles are uniformly formed and bubbles are uniformly formed inside the steamed bread. In addition, it has been shown that it retains its airtight property even when the dough expands upward during baking because it has excellent shape retention and does not lose its shape. Moreover, the taste was good at any of the above-mentioned expansion agent addition amounts of 1, 2 and 3 parts by weight.
[0027]
[Example 5]
The food dolomite powder Hosokawa Micron Hosokawa / Alpine 400 / 4AFG jet mill, the average particle diameter D 50 2.0 .mu.m; maximum particle diameter 8.8μm; D 50 5.8μm; maximum particle diameter 18.9μm; D 50 6. 7 μm; Three types of dolomite powder having a maximum particle size of 26.1 μm were prepared. Three types of the above-mentioned three kinds of dolomite powder prepared by Fujisawa Pharmaceutical Co., Ltd., 4 mol of glucono delta lactone powder, ie, 84.40 g of dolomite powder 1 and 712.56 g of glucono delta lactone powder are mixed with a mixer with 1 mol of the prepared dolomite powder for food. There were obtained 896.96 g of a swelling agent containing dolomite powders having different particle sizes.
[0028]
Steamed bread dough was prepared by adding 3 parts by weight of three kinds of swelling agents having different average particle diameters to 100 parts by weight of flour, 50 parts by weight of sugar and 100 parts by weight of distilled water and kneading at room temperature. 50 mL of this dough was poured into a 100 mL glass graduated cylinder and left in a steamer at a temperature of 120 ° C. and a pressure of 1.0 kgf / cm 2 for 20 minutes to prepare a steamed pan. The coefficient of expansion was determined as the ratio of the volume after heating to the original dough. In addition, Table 4 shows the average of the results of evaluation by the following four stages for the expansibility and texture to be sampled by 10 panelists. Expansibility: ◎ Large ○ Slightly large △ Slightly small ▲ Small Texture: ◎ Very good ○ Excellent △ Somewhat excellent ▲ Inferior [0029]
[Table 4]
Figure 0004390243
[0030]
It has been found that the dolomite in the swelling agent shows the formation of extremely fine bubbles in the dough and a uniform swelling property by reducing the particle size. It was also found that the shape after steaming is more stable as fine powder and the texture is improved. The steamed bread to which dolomite having an average particle size of 6.7 μm and a maximum particle size of 26.1 μm is added has poor expandability, and since a uniform dough could not be obtained, the soft feeling is lacking. The maximum particle size is preferably 20 μm or less.
[0031]
【The invention's effect】
It is a swelling agent for starchy foods with excellent texture as well as expansibility.

Claims (3)

平均粒子径D506.0μm以下、最大粒子径20.0μm以下であるドロマイト乾燥粉体1モルに対してグルコノデルタラクトン乾燥粉体2.3〜4.5モルの割合で混合してなる澱粉質食品の膨張剤であって、加熱することにより系内で生成するグルコン酸で前記ドロマイトを分解反応させて炭酸ガスを発生することを特徴とする澱粉質食品の膨張剤。It is mixed at a ratio of 2.3 to 4.5 mol of gluconodeltalactone dry powder with respect to 1 mol of dolomite dry powder having an average particle size D 50 of 6.0 μm or less and a maximum particle size of 20.0 μm or less. A swelling agent for starchy foods, which generates carbon dioxide by decomposing the dolomite with gluconic acid generated in the system by heating. 次の工程(1)〜(3)を含むことを特徴とする澱粉質食品の製造方法。
(1)平均粒子径D506.0μm以下、最大粒子径20.0μm以下であるドロマイト乾燥粉体1モルに対してグルコノデルタラクトン乾燥粉体2.3〜4.5モルの割合で混合して澱粉質食品の膨張剤を調製する。
(2)小麦粉に対して工程(1)の膨張剤を1〜5%加え、室温で混練して炭酸ガスの発生なしに生地を調製する。
(3)工程(2)で調製した生地を加熱して前記ドロマイトを系内で生成するグルコン酸で分解反応させて炭酸ガスを発生させて膨張させ、そして焼成あるいは蒸して澱粉質食品を製造する。
The manufacturing method of the starchy food characterized by including the following process (1)-(3).
(1) Mixing at a ratio of 2.3 to 4.5 moles of glucono delta lactone dry powder to 1 mole of dolomite dry powder having an average particle diameter D 50 of 6.0 μm or less and a maximum particle diameter of 20.0 μm or less Then, a swelling agent for starchy food is prepared.
(2) Add 1-5% of the expansion agent of step (1) to wheat flour and knead at room temperature to prepare dough without generation of carbon dioxide.
(3) The dough prepared in step (2) is heated to decompose the dolomite with gluconic acid generated in the system to generate carbon dioxide gas, expand, and baked or steamed to produce starchy food. .
請求項2記載の製造方法により製造されたことを特徴とする澱粉質食品。  A starchy food produced by the production method according to claim 2.
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