JP3909629B2 - Processed rice production method and apparatus - Google Patents

Description

【０００５】
特開平５−１３７５２１号公報では、精白した米を更に研磨し糠を完全に除去した米、あるいは精白した米を洗米するなどして糠を完全に除去した米に対し、ゼラチンの溶液の塗布、浸漬、あるいは噴霧等により、米の表面にゼラチン水溶液の被膜を形成し、さらに、この水分を乾燥させることにより、ゼラチン被覆精白米を得るものである。これにより、洗米の不要な精白米を作り、しかも、お米の持つおいしさと香りを、長期間に亘って損なうことなく貯蔵できるものである。しかしながら、この精白米は糠を完全に除去しているため栄養価が格別に高いものではない。
【０００６】
【発明が解決しようとする課題】
水を注ぐだけで炊くことのできる無洗米であって、しかも、栄養価を高めたものとして、例えば、無洗米の米粒群に、該無洗米と近似体積に調製したカルシウム成分粒をほぼ均一に分散混入して包装したカルシウム強化米なども開示されているが（特開平９−９４０７１号公報参照）、これは、無洗米とこれとは別のカルシウム粒材（カルシウム成分を米粒表面に被覆したものや、カルシウム造粒物）とを混ぜ合わせているもので、無洗米とカルシウム粒材とが異なる舌触りとなるため食感がまずくなる虞（おそれ）がある。
【０００７】
また、特開平９−３０８４４４号公報では、洗米せずに炊飯して食することのできる精米と、同精米に適合する量の炊飯用水とを、同一の包装容器内にそれぞれ独立した状態で収容し、前記炊飯用水に、カルシウム、鉄分、ビタミン等の栄養素を添加したものが開示されている。この炊飯用パッケージでは、精米とは別に炊飯用水が収容されているので、コスト高になり、また、梱包の際、炊飯用水の分だけ嵩張るという問題点がある。
【０００８】
本発明は上記のような問題点にかんがみ、食感がよく、しかも、低コストで得られる栄養価の高い水洗不要の加工米の製造方法及びその装置を提供することを技術的課題とする。
【０００９】
【課題を解決するための手段】
【００１０】
【００１１】
【００１２】
【００１３】
上記課題を解決するための第一の発明は、精白米又は搗精の過程にある米粒に白糠を混合し、該米粒と白糠とを撹拌・研磨することにより米粒に付着する遊離糠を除去して、水洗することなく水を注ぐだけで炊くことのできる米粒に加工し、該米粒にカルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を含有した白糠を再度混合するとともに、該米粒に熱風又は蒸気を吹き付けて米粒表面を前記白糠で被覆する、という技術的手段を講じた。
【００１４】
これにより、搗精後の米粒と白糠とを混合し、撹拌・研磨することで、米粒表面に付着した遊離糠が白糠に接着されて、水を注ぐだけで炊くことのできる米粒が形成され、この米粒にカルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を含有した白糠を混合し、熱風又は蒸気を吹き付けると、白糠がアルファ化して澱粉質となり、栄養価が高く、水を注ぐだけで炊くことのできる加工米ができる。
【００１５】
また、上記製造方法とは別の製造方法としては、精白米又は搗精の過程にある米粒に霧、蒸気又は湿風を供給して撹拌・研磨することにより米粒に付着する遊離糠を除去し、水洗することなく水を注ぐだけで炊くことのできる米粒に加工し、該米粒にカルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を含有した白糠を混合するとともに、該米粒に熱風又は蒸気を吹き付けて米粒表面を前記白糠で被覆するとよい。
【００１６】
これにより、無洗米化のための白糠が十分得られない場合でも本発明の加工米を製造できる。つまり、精白米又は搗精の過程にある米粒に霧、蒸気又は湿風を供給して撹拌・研磨することにより、米粒表面に付着した遊離糠が軟化し、この遊離糠が切削的に除去されて水を注ぐだけで炊くことのできる米粒が形成される。この米粒にカルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を含有した白糠を混合し、熱風又は蒸気を吹き付けると、白糠がアルファ化して澱粉質となり、栄養価が高く、水を注ぐだけで炊くことのできる加工米ができる。
【００１７】
そして、加工米の製造方法を実施する装置としては、精白米又は搗精の過程にある米粒に白糠を混合する第一混合手段と、米粒と白糠とを撹拌・研磨する撹拌研磨手段と、撹拌・研磨された米粒と使用済みの白糠とを分離する分離手段と、分離された米粒にカルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を含有した白糠を再度混合する第二混合手段と、白糠を混合した米粒に熱風又は蒸気を吹き付けて米粒表面を被覆するコーティング手段と、前記分離手段により分離した白糠を回収し、該白糠を前記第一混合手段及び前記第二混合手段に供給して白糠を再利用するリサイクル手段と、を備えるとよい。
【００１８】
これにより、第一混合手段では精白米又は搗精の過程にある米粒に白糠が混合され、撹拌研磨手段では米粒表面の遊離糠が白糠に接着されて、水を注ぐだけで炊くことのできる米粒が形成され、分離工程では米粒と白糠とが分離され、第二混合手段では水を注ぐだけで炊くことのできる米粒に、新たにカルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を含有した白糠が塗布され、コーティング手段では白糠が塗布された米粒に熱風又は蒸気が吹き付けられ、白糠がアルファ化して澱粉質となり、栄養価が高く、水を注ぐだけで炊くことのできる加工米を製造することができる。そして、リサイクル手段では分離手段で取り分けた白糠が、第一混合手段及び第二混合手段に供給されて、白糠の再利用が行われる。
【００１９】
また、上記装置とは別の装置として、精白米又は搗精の過程にある米粒に霧、蒸気又は湿風を供給して撹拌・研磨する撹拌研磨手段と、撹拌・研磨された米粒にカルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を含有した白糠を混合する混合手段と、白糠を混合した米粒に熱風又は蒸気を吹き付けて米粒表面を被覆するコーティング手段と、前記混合手段で混合した白糠を回収し、該白糠を再度前記混合手段に供給して白糠を再利用するリサイクル手段とを備えるとよい。
【００２０】
これにより、撹拌研磨手段では精白米又は搗精の過程にある米粒に霧、蒸気又は湿風を供給して撹拌すると、米粒表面に付着した遊離糠が軟化し、この遊離糠が切削的に除去されて水を注ぐだけで炊くことのできる米粒が形成され、混合手段では、水を注ぐだけで炊くことのできる米粒に、カルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を含有した白糠が塗布され、コーティング手段では白糠が塗布された米粒に熱風又は蒸気が吹き付けられ、白糠がアルファ化して澱粉質となり、栄養価が高く、水を注ぐだけで炊くことのできる加工米を製造することができる。そして、リサイクル手段では分離手段で取り分けた白糠が、混合手段に供給されて、白糠の再利用が行われる。
【００２１】
そして、上記装置は、前記撹拌研磨手段及び前記コーティング手段を、機枠内に内設した多孔壁除糠筒を二分して一端側を撹拌研磨手段に、他端側をコーティング手段に形成するとともに、前記多孔壁除糠筒内に回転可能に軸架する主軸を共有にするとよい。
【００２２】
これにより、市販の無洗米を使用することなく、精白米又は搗精の過程のある米粒から、栄養価が高く、水を注ぐだけで炊くことのできる加工米を連続して生産することができる。
【００２３】
【発明の実施の形態】
以下、本発明の加工米の製造方法及びその装置について図面を参照しながら説明する。
【００２４】
本発明の加工米を製造するために、まず、搗精後の米粒表面の遊離糠を剥離したり、滑面化された米粒表面を被覆するための白糠を生成する必要がある。白糠は酒米の製造過程の副産物として得られるもので、酒造用精米機により玄米を精米歩留８０％以下に搗精して得られ、粒度が３００μｍ以下（平均粒度は５０μｍ）の粉状体となっている。一方、搗精後の米粒表面に付着している残留アリューロン層（糊粉層）は層厚が約２５〜４０μｍの薄膜となっている。このため、精白米を撹拌研磨処理するには、残留アリューロン層の層厚と同程度の粒径の研磨剤を混入して、米粒表面の凹部に残留するアリューロン層を掻き出すことができるものを選択するのが好ましい。白糠はその粒径が残留アリューロン層の層厚と近似しているので、米粒表面を美麗に仕上げることができ、また、従来から米菓や糊の原料、糖化原料など幅広く利用されているので、成分的には精白米とほとんど変わらず（表２参照）、食べても構わないので米粒表面の遊離糠を剥離して無洗米化するためには好適である。さらに、白糠は米粒白度を向上させるとともに、脱脂作用が優れている点で好適である。
【表２】

【００２５】
図１は一般的な精米機で常法により歩留９２％程度に搗精した精白米の拡大断面図であり、図２は水洗作業を不要にした無洗米の拡大断面図である。図１に示す精白米１は、搗精により原料玄米から糠の一部である果皮、種皮、外胚乳が取り去られ、残留アリューロン層２と澱粉質３とが主成分となる。
【００２６】
次に、本発明の加工米について説明する。図１に示す精白米１を原料として、極めて短時間に水中搗精した後、脱水・乾燥処理したり、研磨ブラシ、ゴムロールなどで摩擦処理したり、澱粉、糠、糖類などの粘着性物質を添加した後、攪拌研磨処理するなどして無洗米６に仕上げる（図２参照）。
【００２７】
好適には、精白米１に上述の白糠４を混入し、適宜な撹拌研磨装置により撹拌研磨するとよい。これを図１により説明すると、撹拌研磨処理により白糠粒子４が残留アリューロン層２を剥離するとともに、澱粉質表面５の凹部まで白糠粒子４が入り込み、糠分が白糠に接着されて除去され、澱粉質３表面が美麗に仕上がり、水を注ぐだけで炊くことのできる無洗米６に仕上がる（図２及び図９参照）。
【００２８】
次に、この無洗米６の表面に、カルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも一種類の栄養素を添加した白糠を被覆させてコーティング層７を形成し、栄養価が高く、水を注ぐだけで炊くことができる加工米８が得られる（図３及び図１０参照）。
【００２９】
一方、搗精の過程のある米粒（例えば、歩留９４％程度に搗精した７分搗き米）が原料の場合であっても、上記同様に無洗米に仕上げる（このとき、原料が７分搗き米であって、澱粉質３に糠層１１が被覆されていても、米粒表面の遊離糠が除去され、表面が美麗に仕上がっているので無洗米と称することにする）。
【００３０】
次に、この無洗米にカルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を添加した白糠を被覆させてコーティンング層９を形成し、栄養価が非常に高く、水を注ぐだけで炊くことのできる加工米１０が得られる（図４参照）。
【００３１】
次に、図５及び図６により加工米の製造工程を説明する。図５では、歩留９２％程度に搗精した精白米又は歩留９４％程度に搗精した７分搗き米と白糠とを混合し（ステップ１００）、既存の撹拌研磨機で撹拌研磨し（ステップ１０１）、所定時間撹拌研磨した後、米粒と白糠とを分離し（ステップ１０２）、分離後の米粒と栄養素を添加した白糠とを混合し（ステップ１０３）、さらに、白糠を塗布した米粒に熱風又は水蒸気を吹き付けて米粒をコーティング処理すると（ステップ１０４）、加工米が得られるのである。
【００３２】
図６では、歩留９２％程度に搗精した精白米又は歩留９４％程度に搗精した７分搗き米に霧、蒸気又は湿風を供給して撹拌・研磨して米粒に付着する遊離糠を除去し（ステップ１１０）、該米粒に栄養素を含有した白糠を混合し（ステップ１１１）、さらに、白糠が塗布された米粒に熱風又は蒸気を吹き付けて米粒をコーティング処理すると（ステップ１１２）、加工米が得られるのである。
【００３３】
図７は、図５の製造工程を実施するための装置を示す概略縦断面図である。図７を参照して本装置を説明すると、加工米製造装置１２は、精白米又は搗精の過程にある米粒に白糠を混合する第一混合手段１３と、米粒と白糠とを撹拌・研磨する撹拌研磨手段１４と、撹拌・研磨された米粒と使用済みの白糠とを分離する分離手段と１５と、分離された米粒にカルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を含有した白糠を再度混合する第二混合手段１６と、白糠を混合した米粒に熱風又は蒸気を吹き付けて米粒表面を被覆するコーティング手段１７と、前記分離手段１５により分離した白糠を回収し、該白糠を前記第一混合手段１３及び前記第二混合手段１６に供給して白糠を再利用するリサイクル手段１８と、を備えている。
【００３４】
そして、前記加工米製造装置１２は、立設した縦長の機枠１９内に内設した多孔壁除糠筒２０を二分して上端側を撹拌研磨手段１４に、下端側をコーティング手段１７にそれぞれ形成するとともに、前記多孔壁除糠筒２０内に回転可能に軸架する中空状の主軸２１が前記撹拌研磨手段１４とコーティング手段１７とを共有するように設けられている。
【００３５】
前記第一混合手段１３は、撹拌研磨手段１４の上部に接続した供給筒２２と、該供給筒２２内に回転可能に立設した供給螺旋２３と、供給筒２２上部に設けて白糠の添加量を適宜調節する白糠添加装置２４と、原料白米を供給するための供給樋２５とから構成される。また、前記撹拌研磨手段１４は、機枠１９内に架設した多孔壁除糠筒２０と、該多孔壁除糠筒２０内で前記主軸２１内に軸着した撹拌ロール２６と、前記多孔壁除糠筒２０と前記撹拌ロール２６との間で形成される撹拌研磨室２７と、前記多孔壁除糠筒２０と前記機枠１９との間で形成される除糠室２８と、前記撹拌研磨室２７下部に設けた米粒排出口２９と、該米粒排出口２９に対面させて設けられた抵抗蓋３０とから構成される。前記分離手段は、本実施形態の場合、前記多孔壁除糠筒２０と除糠室２８とで構成される。
【００３６】
前記第二混合手段１６は、前記抵抗蓋３０から流出した米粒に白糠を塗布する混合流路３１と、該混合流路３１に接続して、カルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を含有した白糠を供給する白糠供給筒３２と、混合流路３１からの米粒を前記コーティング手段１７へ送る横送スクリュー３３と上送スクリュー３４とから構成される。また、コーティング手段１７は、機枠１９内の下部に架設した多孔壁除糠筒３５と、該多孔壁除糠筒３５内で前記主軸２１内に軸着した撹拌ロール３６と、多孔壁除糠筒３５と前記撹拌ロール３６との間で形成されるコーティング室３７と、前記多孔壁除糠筒３５と機枠１９との間で形成される除糠室３８と、コーティング室３７上部に設けた製品排出口３９と、該製品排出口３９に対面させて設けられた抵抗蓋４０と、図示しない熱源より発生した熱風又は水蒸気を供給する熱供給路４３とから構成される。なお、符号４１は中空状の主軸２１を介して前記撹拌研磨室２７及びコーティング室３７へ噴風を行い、除糠を行う噴風ファンであり、符号４２は主軸２１に軸着して除糠室３８底部に溜まった糠を掻き出す糠掻き出し翼である。
【００３７】
リサイクル手段１８は、除糠室３８底部に接続して底部に堆積した糠を回収する回収管路４４と、白糠添加装置２４の余剰糠を回収する回収管路４５と、回収管路４４，４５の他端側に接続したバッグフィルター４６と、該バッグフィルター４６に接続した吸引ファン４７と、バッグフィルター４６下部から前記白糠添加装置２４へ回収した糠を供給する供給管４８とから構成される。
【００３８】
次に、上記構成の製造装置の作用を説明する。原料となる精白米又は搗精の過程にある米粒を、供給樋２５から第一混合手段１３に投入すると、白糠添加装置２４から適宜な量の白糠（例えば、米粒１重量部に対して５％〜３０％）が投入される。そして、第一混合手段１３の供給螺旋２３を回転すると、米粒と白糠とが一定流量で撹拌研磨手段１４に送られる。該撹拌研磨手段１４内の多孔壁除糠筒２０は上部側を盲板となし、下方側を多孔壁となしているから、盲板側で撹拌ロール２６が回転すると米粒の粒々摩擦が行われて米粒表面に付着した遊離糠が白糠に接着され、多孔壁側で撹拌ロール２６が回転すると、噴風ファン４１の噴風により、白糠に接着した遊離糠が除糠室２８に排出され、米粒と該米粒に塗（まぶ）された白糠とが分離されることになる。撹拌研磨室２７に残った米粒は、図２に示すように残留アリューロン層の除去された無洗米となる。なお、抵抗蓋３０の圧力の調整は、米粒の種類によって残留アリューロン層が払拭されるように、例えば、原料が精白米の場合は撹拌研磨室２７内の圧力を１００ｇｆ／平方センチ以下とし、原料が搗精の過程にある米粒の場合は撹拌研磨室２７内の圧力を１５０ｇｆ／平方センチ以上とすればよい。
【００３９】
米粒が撹拌研磨室２７下部に至ると、抵抗蓋３０に抗して混合流路３１に流下される。混合流路３１には白糠供給筒３２が接続され、カルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を含有した白糠が供給され、米粒と白糠とが混合されることになる。そして、混合流路３１下部に至った米粒と白糠は、横送スクリュー３３及び上送スクリュー３４によりさらに攪拌され、コーティング手段１７に供給される。
【００４０】
コーティング手段１７では、熱供給路４３からの熱風又は水蒸気が主軸２１を介してコーティング室３７に供給される。熱風又は水蒸気は、澱粉がアルファー化し、かつ食味に悪影響が及ばない温度、例えば、５５〜７０℃に設定するとよい。栄養素を含有する白糠を塗（まぶ）した米粒が前記上送スクリュー３４からコーティング室３７に供給されると、攪拌ロール３６により粒々摩擦が行われるとともに、前記熱風又は水蒸気が供給されて白糠がアルファ化して澱粉質となる。そして、米粒表面が図３又は図４のようにコーティングされた米粒は、製品排出口３９から抵抗蓋４０に抗して排出され、栄養価が高く、水を注ぐだけで炊くことのできる加工米ができる。この抵抗蓋４０の圧力の調整は、米粒の種類によらず、コーティング室３７内の圧力を８０ｇｆ／平方センチ以下とすればよい。
【００４１】
前記リサイクル手段１８は、糠掻き出し翼４２により除糠室３８の糠が掻き出され、回収管路４４を経てバッグフィルター４６に捕集され、バッグフィルター４６下部から前記白糠添加装置２４に糠が供給される。これにより、研磨剤としての白糠が十分に得られず、少量であっても加工米を製造することができる。
【００４２】
図８は、図６の製造工程を実施するための装置を示す概略縦断面図である。図８を参照してこの装置を説明すると、加工米製造装置１２は、精白米又は搗精の過程にある米粒に霧、蒸気又は湿風を供給して撹拌・研磨する撹拌研磨手段４９と、撹拌・研磨された米粒にカルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を含有した白糠を混合する混合手段５０と、白糠を混合した米粒に熱風あるいは蒸気を吹き付けて米粒表面を被覆するコーティング手段５１と、前記混合手段５０で混合した白糠を回収し、該白糠を再度前記混合手段５０に供給して白糠を再利用するリサイクル手段５２と、を備えたものである。
【００４３】
そして、前記加工米製造装置１２は、横設した横長の機枠５３内に架設した多孔壁除糠筒５４を三分割して一端側を撹拌研磨手段４９に、他端側をコーティング手段５１にそれぞれ形成するものであり、中央の多孔壁除糠筒は盲板５５に形成して混合手段５０を構成する。そして、前記多孔壁除糠筒５４内で回転可能に横架する中空状の主軸５６は、前記撹拌研磨手段４９、混合手段５０及びコーティング手段５１とを共有するように長尺状に設けられている。
【００４４】
前記撹拌研磨手段４９の前工程では、機枠５３の上部に接続した流量調節が可能な原料供給筒５７と、該原料供給筒５７内底部の前記主軸５６に軸着した供給螺旋５８とが設けられる。撹拌研磨手段４９では、前記主軸５６に軸着した撹拌ロール５９と、前記主軸５６の一端から挿通して霧、蒸気又は湿風を供給するノズル６０と、前記主軸５６に穿設した湿風供給口６１と、前記多孔壁除糠筒５４とで構成される。
【００４５】
前記混合手段５０は、前記主軸５６に軸着した撹拌ロール５９と、前記盲板５５と、前記主軸５６の他端から挿通してカルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を含有した白糠を添加するノズル６２と、前記主軸５６に穿設した糠供給孔６３とから構成される。
【００４６】
さらに、コーティング手段５１は、前記主軸５６に軸着した撹拌ロール５９と、前記多孔壁除糠筒５４と、前記主軸５６の他端から挿通して熱風又は蒸気を吹き付けるノズル６４と、前記主軸５６に穿設した熱風供給口６５とから構成される。
【００４７】
また、前記リサイクル手段５２は、前記多孔壁除糠筒５４から漏出される白糠を回収するように糠ホッパー６６と、該糠ホッパー６６に接続する図７のバッグフィルター４６及び吸引ファン４７とから構成される。符号６７は多孔壁除糠筒５４と攪拌ロール５８との間に形成される撹拌摩擦室であり、符号６８は製品排出口６９に対面させて設けられた抵抗蓋であり、符号７０は多孔壁除糠筒５４と撹拌ロール５８との間に形成されるコーティング室である。
【００４８】
次に、上記構成における作用を説明する。原料となる精白米又は搗精の過程にある米粒を、原料供給筒５７に投入すると、原料の流量が調節されながら供給螺旋５８に供給される。そして、原料は供給螺旋５８により撹拌研磨手段４９に移送されると、ノズル６０から霧、蒸気又は湿風が撹拌摩擦室６７に供給され、米粒表面に付着した遊離糠が軟化し、この遊離糠が切削的に除去されて水を注ぐだけで炊くことのできる無洗米が形成される。このとき、遊離糠は多孔壁除糠筒５４から漏出し、糠ホッパー６６Ｂに集められることになる。
【００４９】
次に、前記無洗米は混合手段５０に移送され、ノズル６２からカルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を含有した白糠が供給され、撹拌ロール５９により米粒と白糠とが混合されることになる。そして、次工程のコーティング手段５１に供給される。
【００５０】
コーティング手段５１では、ノズル６４から熱風又は水蒸気が供給される。この熱風又は水蒸気は、澱粉がアルファー化し、かつ食味に悪影響が及ばない温度、例えば、５５〜７０℃に設定され、栄養素を含有する白糠が塗（まぶ）した米粒がコーティング室７０に供給される。そして、撹拌ロール５９により粒々摩擦が行われるとともに、白糠がアルファ化して澱粉質となる。そして、米粒表面は図３又は図４のようにコーティングされ、製品排出口６９から抵抗蓋６８に抗して排出され、栄養価が高く、水を注ぐだけで炊くことのできる加工米ができる。この抵抗蓋６８の圧力の調整は、米粒の種類によらず、コーティング室７０内の圧力を８０ｇｆ／平方センチ以下とすればよい。
【００５１】
【実施例】
さらに、具体的な実施例により、本発明の詳細を説明する。精白米１に対し、研磨剤として５〜２０重量％の白糠を混合し、約３分間撹拌混合し、次に、適宜な除糠装置により白糠を除去して、澱粉層が露出した図９に示すような無洗米を得た。そして、白糠１に対し０．６〜１．０重量％のカルシウム粉末を混入したコーティング剤を生成し、前記無洗米１に対し２．３〜６．３重量％のコーティング剤を混合し、更に、５５〜７０℃の熱風又は蒸気を吹き付けて米粒表面を被覆した加工米を得た。
【００５２】
この加工米１００ｇ当たりの白糠の重量は２．３ｇ〜６．３ｇであり、カルシウム粉末の重量は１２．８ｍｇ〜２３ｍｇである。前述の表１の玄米と比較しても、カルシウム含有量を上回ることができた。これにより、カルシウム摂取量の不足分を補うことができ、骨、歯などを硬組織に保ち、骨粗しょう症などの病気を克服することができる。
【００５３】
また、上記実施例のカルシウム粉末とともに、マグネシウム粉末を混入すれば、カルシウムの吸収を促進することができる。また、カルシウムの代わりに鉄分を混入すれば、血液中のヘモグロビン量を増加させ、貧血を解消することができる。また、ビタミンＢ１を混入すれば、脚気を防止することができ、ビタミンＢ２を混入すれば、細胞の成長を促進させるとともに、口内炎などを抑制するのに効果的である。
【００５４】
【発明の効果】
【００５５】
【００５６】
以上のように本発明によれば、精白米又は搗精の過程にある米粒に白糠を混合し、該米粒と白糠とを撹拌・研磨することにより米粒に付着する遊離糠を除去して、水洗作業を不要にして、水を注ぐだけで炊くことのできる米粒に加工し、該米粒にカルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を含有した白糠を再度混合するとともに、米粒に熱風又は蒸気を吹き付けて米粒表面を被覆すると、搗精後の米粒と白糠とを混合し、撹拌・研磨することで、米粒表面に付着した遊離糠が白糠に接着されて、水を注ぐだけで炊くことのできる米粒が形成され、この米粒にカルシウム、鉄分、ビタミンなどの栄養素を含有した白糠を混合し、熱風又は蒸気を吹き付けると、白糠がアルファ化して澱粉質となり、栄養価が高く、水を注ぐだけで炊くことのできる加工米ができる。
【００５７】
また、上記製造方法とは別の製造方法としては、精白米又は搗精の過程にある米粒に霧、蒸気又は湿風を供給して撹拌・研磨することにより米粒に付着する遊離糠を除去して、水洗作業を不要にして、水を注ぐだけで炊くことのできる米粒に加工し、該米粒にカルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を含有した白糠を混合するとともに、米粒に熱風又は蒸気を吹き付けて米粒表面を被覆すると、無洗米化のための白糠が十分得られない場合でも本発明の加工米を製造できる。つまり、精白米又は搗精の過程にある米粒に霧、蒸気又は湿風を供給して撹拌・研磨することにより、米粒表面に付着した遊離糠が軟化し、この遊離糠が切削的に除去されて水を注ぐだけで炊くことのできる米粒が形成される。この米粒にカルシウム、鉄分、ビタミンなどの栄養素を含有した白糠を混合し、熱風又は蒸気を吹き付けると、白糠がアルファ化して澱粉質となり、栄養価が高く、水を注ぐだけで炊くことのできる加工米ができる。
【００５８】
そして、加工米の製造方法を実施する装置としては、精白米又は搗精の過程にある米粒に白糠を混合する第一混合手段と、米粒と白糠とを撹拌・研磨する撹拌研磨手段と、攪拌研摩された米粒と使用済みの白糠とを分離する分離手段と、分離された米粒にカルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を含有した白糠を再度混合する第二混合手段と、白糠を混合した米粒に熱風又は蒸気を吹き付けて米粒表面を被覆するコーティング手段と、前記分離手段により分離した白糠を回収し、該白糠を前記第一混合手段及び前記第二混合手段に供給して白糠を再利用するリサイクル手段とを備えると、第一混合手段では精白米又は搗精の過程にある米粒に白糠が混合され、撹拌研磨手段では米粒表面の遊離糠が白糠に接着されて、水を注ぐだけで炊くことのできる米粒が形成され、分離工程では米粒と白糠とが分離され、第二混合手段では水を注ぐだけで炊くことのできる米粒に、新たにカルシウム、鉄分、ビタミンなどの栄養素を含有した白糠が塗布され、コーティング手段では白糠が塗布された米粒に熱風あるいは蒸気が吹き付けられ、白糠がアルファ化して澱粉質となり、栄養価が高く、水を注ぐだけで炊くことのできる加工米を製造することができる。そして、リサイクル手段では分離手段で取り分けた白糠が、第一混合手段及び第二混合手段に供給されて、白糠の再利用が行われる。
【００５９】
また、上記装置とは別の装置として、精白米又は搗精の過程にある米粒に霧、蒸気又は湿風を供給して撹拌・研磨する撹拌研磨手段と、撹拌・研磨された米粒にカルシウム、マグネシウム、鉄分及びビタミンのうち、少なくとも１種類の栄養素を含有した白糠を混合する混合手段と、白糠を混合した米粒に熱風又は蒸気を吹き付けて米粒表面を被覆するコーティング手段と、前記混合手段で混合した白糠を回収し、該白糠を再度前記混合手段に供給して白糠を再利用するリサイクル手段とを備えると、撹拌研磨手段では精白米又は搗精の過程にある米粒に霧、蒸気又は湿風を供給して撹拌すると、米粒表面に付着した遊離糠が軟化し、この遊離糠が切削的に除去されて水を注ぐだけで炊くことのできる米粒が形成され、混合手段では水を注ぐだけで炊くことのできる米粒に、カルシウム、鉄分、ビタミンなどの栄養素を含有した白糠が塗布され、コーティング手段では白糠が塗布された米粒に熱風あるいは蒸気が吹き付けられ、白糠がアルファ化して澱粉質となり、栄養価が高く、水を注ぐだけで炊くことのできる加工米を製造することができる。そして、リサイクル手段では分離手段で取り分けた白糠が、混合手段に供給されて、白糠の再利用が行われる。
【００６０】
そして、上記装置は、前記撹拌研磨手段及び前記コーティング手段を、機枠内に架設した多孔壁除糠筒を二分して一端側を撹拌研磨手段に、他端側をコーティング手段に形成するとともに、前記多孔壁除糠筒内に回転可能に軸架する主軸を共有にすると、市販の無洗米を使用することなく、精白米又は搗精の過程のある米粒から、栄養価が高く、水を注ぐだけで炊くことのできる加工米に連続して生産することができる。
【図面の簡単な説明】
【図１】一般的な精米機で常法により歩留９２％程度に搗精した精白米の拡大断面図である。
【図２】残留アリューロン層を取り除いた無洗米の拡大断面図である。
【図３】本発明の栄養価が高い加工米の拡大断面図である。
【図４】同上の別実施形態を示す拡大断面図である。
【図５】本発明の加工米の製造方法を実施するための工程図である。
【図６】同上の別実施形態を示す工程図である。
【図７】本発明の加工米の製造方法を実施するための装置を示す概略図である。
【図８】同上の別実施形態を示す該略図である。
【図９】本発明の実施例を示す図面代用写真である。
【図１０】本発明の実施例を示す図面代用写真である。
【符号の説明】
１ 精白米
２ 残留アリューロン層
３ 澱粉質
４ 白糠粒子
５ 澱粉質表面
６ 無洗米
７ コーティング層
８ 加工米
９ コーティング層
１０ 加工米
１１ 糠層
１２ 加工米製造装置
１３ 第一混合手段
１４ 撹拌研磨手段
１５ 分離手段
１６ 第二混合手段
１７ コーティング手段
１８ リサイクル手段
１９ 機枠
２０ 多孔壁除糠筒
２１ 主軸
２２ 供給筒
２３ 供給螺旋
２４ 白糠添加装置
２５ 供給樋
２６ 撹拌ロール
２７ 撹拌研磨室
２８ 除糠室
２９ 米粒排出口
３０ 抵抗板
３１ 混合流路
３２ 白糠供給筒
３３ 横送スクリュー
３４ 上送スクリュー
３５ 多孔壁除糠筒
３６ 撹拌ロール
３７ コーティング室
３８ 除糠室
３９ 製品排出口
４０ 抵抗板
４１ 噴風ファン
４２ 掻き出し翼
４３ 熱供給路
４４ 回収管路
４５ 回収管路
４６ バッグフィルター
４７ 吸引ファン
４８ 供給管
４９ 撹拌研磨手段
５０ 混合手段
５１ コーティング手段
５２ リサイクル手段
５３ 機枠
５４ 多孔壁除糠筒
５５ 盲板
５６ 主軸
５７ 原料供給筒
５８ 供給螺旋
５９ 撹拌ロール
６０ ノズル
６１ 湿風供給口
６２ ノズル
６３ 糠供給孔
６４ ノズル
６５ 熱風供給口
６６ 糠ホッパー
６７ 撹拌摩擦室
６８ 抵抗蓋
６９ 製品排出口
７０ コーティング室[0001]
[Technical field to which the invention belongs]
The present invention eliminates the need for water washing operations at home and can be cooked simply by pouring water.ofEspecially regarding a manufacturing method and its apparatus, processed rice with high nutritional value can be obtained.
[0002]
[Prior art]
Currently, rice called so-called no-wash rice that does not require water washing work in general households is in circulation. This non-washed rice is produced by polishing rice milled rice milled in a very short time and then dewatering / drying it. Polished rice milled by a rice milling machine is a polishing brush or rubber roll. There are some which are subjected to friction treatment, and others which are made by adding a sticky substance such as starch, rice bran and sugar to the polished rice refined by a rice mill. The washing-free rice production method as described above is used to remove the aleurone layer (glue layer) remaining in the recesses on the surface of the grain of rice that could not be removed by milling in water, or by polishing, removing starch, It is adhered and wiped with a sticky substance such as candy or sugar.
[0003]
The above-mentioned method of washing-free rice by submerged rice is a method of softening the aleurone layer by water coming into contact with the rice grains, removing the softened aleurone layer by crushing action in the water, and adding a sticky substance to the washed rice. In the production method, the adhesive substance comes into contact with the surface of the rice grain and the aleurone layer is peeled off. These water and adhesive substances mainly function as a medium for peeling off the Aleurone layer, and the medium itself does not function to penetrate the rice grains and increase the nutritional value.
[0004]
In other words, unwashed rice is made from milled rice, and the rice bran layer is peeled off from brown rice to become milled rice.MoreIn addition, since the residual aleurone layer adhering to the polished rice is removed, the protein, lipid, ash, vitamin B1, other calcium, It is thought that mineral components such as magnesium and iron are insufficient (see Table 1).
[Table 1]

[0005]
In JP-A-5-137521, the polished rice is further polished to remove the wrinkles completely, or the rice from which the wrinkles have been completely removed by washing the polished rice, etc., is coated with a gelatin solution. Gelatin-coated polished rice is obtained by forming a film of an aqueous gelatin solution on the surface of rice by dipping or spraying and drying the moisture. As a result, it is possible to produce polished rice that does not require washing, and to store the deliciousness and scent of the rice over a long period of time without impairing it. However, this milled rice is not particularly high in nutritional value because it completely removes rice bran.
[0006]
[Problems to be solved by the invention]
Wash-free rice that can be cooked by simply pouring water, and with increased nutritional value, for example, to the rice grain group of wash-free rice, the calcium component grains prepared in an approximate volume with the wash-free rice are almost uniform. Calcium-reinforced rice that has been dispersed and packaged is also disclosed (see Japanese Patent Application Laid-Open No. 9-94071), but this is a non-washed rice and another calcium granule (the surface of the rice grain is coated with a calcium component). Food and calcium granulated product), and the non-washed rice and the calcium granule material have different textures, and there is a risk that the texture will be worse (dangerous).
[0007]
Moreover, in JP-A-9-308444, rice milled rice that can be cooked and eaten without washing and rice cooking water in an amount suitable for the rice milled rice are contained in the same packaging container in an independent state. And what added nutrients, such as calcium, an iron content, and a vitamin, to the said rice cooking water is disclosed. In this rice cooking package, rice cooking water is contained separately from the polished rice, so that there is a problem that the cost is high and the rice cooking water is bulky when packed.
[0008]
In view of the above-mentioned problems, the present invention has a good texture and is processed at a low cost and has high nutritional value and does not require washing.ofIt is a technical problem to provide a manufacturing method and an apparatus therefor.
[0009]
[Means for Solving the Problems]
[0010]
[0011]
[0012]
[0013]
The first invention for solving the above problems isWhite rice is mixed with rice grains that are in the process of milled rice or milling, and the rice grains and white rice cake are mixed.AgitationStirring・ResearchPolishingBy removing the free rice cake adhering to the rice grain, it is processed into a rice grain that can be cooked by simply pouring water without washing, and the rice grain has at least one nutrient selected from calcium, magnesium, iron and vitamins. The white birch containing the white rice is mixed again, and hot air or steam is sprayed on the rice grain to coat the surface of the rice grain with the white birch., Took technical measures.
[0014]
This mixes rice grains after whitening and white rice cake,AgitationStirring・ResearchPolishingAs a result, free rice bran adhering to the surface of the rice grain is adhered to the white rice cake, and a rice grain that can be cooked by simply pouring water is formed. At least one nutrient of calcium, magnesium, iron and vitamins is added to the rice grain. When white birch containing sardine is mixed and hot air or steam is sprayed, the white birch is pregelatinized to become starchy, high in nutritional value, and processed rice that can be cooked simply by pouring water is produced.
[0015]
Further, as a production method different from the above production method, mist, steam or wet air is supplied to rice grains in the process of polished rice or milling.AgitationStirring・ResearchPolishingTo remove free rice cake adhering to the rice grain, process it into a rice grain that can be cooked by simply pouring water without washing it, and adding at least one nutrient of calcium, magnesium, iron and vitamins to the rice grain The mixed white birch is mixed, and hot air or steam is sprayed on the rice grains to coat the surface of the rice grains with the white birch.
[0016]
Thereby, the processed rice of this invention can be manufactured even when the white rice bran for washing-free rice is not fully obtained. In other words, supplying fog, steam or wet air to rice grains in the process of polished rice or millingAgitationStirring・ResearchPolishingBy doing so, the free rice cake adhering to the surface of the rice grain is softened, the free rice cake is removed by cutting, and a rice grain that can be cooked just by pouring water is formed. This rice grain is mixed with white birch containing at least one nutrient from calcium, magnesium, iron and vitamins, and when hot air or steam is sprayed, the white birch is pregelatinized into starch, high in nutritional value, and poured with water Processed rice that can be cooked alone can be made.
[0017]
And as an apparatus which implements the manufacturing method of processed rice, the 1st mixing means which mixes white rice cake with the rice grain in the process of polished rice or milling, and the rice grain and white rice cakeAgitationStirringPolishingDoAgitationStirring polishing means;AgitationStirring・ResearchPolishingSeparating means for separating the rice grains and used white birch, and second mixing means for re-mixing the separated rice grains with white birch containing at least one nutrient among calcium, magnesium, iron and vitamins; The coating means for spraying hot air or steam on the rice grains mixed with white birch to cover the surface of the rice grains, and the white birch separated by the separating means are collected, and the white birch is supplied to the first mixing means and the second mixing means Recycling means for reusing white birch,It is good to have.
[0018]
Thereby, in the first mixing means, white rice bran is mixed with rice grains in the process of polished rice or milling,AgitationIn the agitation polishing means, free rice cake on the surface of the rice grains is adhered to the white rice cake, and rice grains that can be cooked by simply pouring water are formed. In the separation process, the rice grains and white rice cake are separated, and in the second mixing means, only water is poured. In the rice grains that can be cooked in, white straw containing at least one nutrient among calcium, magnesium, iron and vitamins is newly applied, and in the coating means hot air or steam is sprayed on the rice grains coated with white straw, Processed rice can be manufactured that can be cooked simply by pouring water. In the recycling means, the white lees separated by the separating means are supplied to the first mixing means and the second mixing means, and the white lees are reused.
[0019]
Moreover, as an apparatus different from the above apparatus, mist, steam or wet air is supplied to the rice grains in the process of polished rice or milling.AgitationStirring・ResearchPolishingDoAgitationStirring polishing means;AgitationStirring・ResearchPolishingMixing means for mixing white rice cake containing at least one nutrient of calcium, magnesium, iron and vitamins into the rice grains, and coating means for coating the rice grain surface by spraying hot air or steam on the rice grains mixed with white rice cake It is preferable to provide a recycling unit that collects the white rabbit mixed by the mixing means, supplies the white rabbit again to the mixing means, and reuses the white rabbit.
[0020]
ThisAgitationAgitationPolishingThe means is to supply mist, steam or wet air to the rice grains in the process of milled rice or milling.AgitationWhen stirred, the free rice cake adhering to the surface of the rice grains softens, the free rice cake is removed by cutting, and rice grains that can be cooked simply by pouring water are formed. White rice cake containing at least one nutrient of calcium, magnesium, iron and vitamins is applied to the resulting rice grain, and hot air or steam is sprayed on the rice grain to which the white rice cake has been applied in the coating means, and the white rice cake is pregelatinized into starch It can produce processed rice that is of high quality, has a high nutritional value and can be cooked just by pouring water. Then, in the recycling means, the white straw separated by the separating means is supplied to the mixing means, and the white straw is reused.
[0021]
And the device isAgitationAgitationPolishingAnd one end side of the coating means and the porous wall removal cylinder provided in the machine frame.AgitationAgitationPolishingPreferably, the other end side is formed in the coating means, and the main shaft that pivots rotatably in the porous wall removal cylinder is shared.
[0022]
Thereby, the processed rice which has high nutritional value and can be cooked only by pouring water can be produced continuously from the polished rice grains or the rice grains in the process of milling without using commercially available non-washed rice.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the processed rice of the present inventionofA manufacturing method and an apparatus thereof will be described with reference to the drawings.
[0024]
In order to produce the processed rice of the present invention, first, it is necessary to peel free rice bran on the surface of the rice grain after milling, or to generate white rice cake for coating the smoothened rice grain surface. White rice bran is obtained as a by-product of the production process of sake rice, and is obtained by pulverizing brown rice with a rice mill for sake brewing to a rice yield of 80% or less, and having a particle size of 300 μm or less (average particle size is 50 μm) It has become. On the other hand, the residual aleurone layer (paste powder layer) adhering to the surface of the rice grains after scouring is a thin film having a thickness of about 25 to 40 μm. For this reason, polished riceAgitationFor the agitation polishing, it is preferable to select an agent capable of scraping off the aleurone layer remaining in the recesses on the surface of the rice grain by mixing an abrasive having a particle size comparable to the layer thickness of the residual aleurone layer. Since the grain size of white birch approximates the thickness of the residual Aleurone layer, the surface of the rice grain can be finished beautifully, and since it has been widely used for rice crackers, paste raw materials, saccharification raw materials, etc. In terms of ingredients, it is almost the same as polished rice (see Table 2), and can be eaten, so it is suitable for removing the free koji on the surface of the rice grain and making it non-washed rice. Furthermore, white rice bran is preferred in that it improves the whiteness of rice grains and has an excellent degreasing effect.
[Table 2]

[0025]
FIG. 1 is an enlarged cross-sectional view of polished rice that has been refined to a yield of about 92% by a general rice mill, and FIG. 2 is an enlarged cross-sectional view of non-washed rice that eliminates the need for water washing. The milled rice 1 shown in FIG. 1 removes the pericarp, seed coat, and outer endosperm, which are part of the koji, from the raw brown rice by koji, and the residual aleurone layer 2 and starch 3 are the main components.
[0026]
Next, the processed rice of this invention is demonstrated. Using the milled rice 1 shown in Fig. 1 as a raw material, after scouring in water for a very short time, dewatering and drying, rubbing with an abrasive brush, rubber roll, etc., and adding adhesive substances such as starch, rice bran, and sugars Then, it is finished into washing-free rice 6 by, for example, stirring and polishing (see FIG. 2).
[0027]
Preferably, the above-mentioned white rice bran 4 is mixed in the polished rice 1 and an appropriate amount is selected.AgitationAgitationPolishingDepending on the deviceAgitationAgitationPolishingGood. This will be explained with reference to FIG.AgitationAgitationPolishingThe white birch particles 4 peel off the residual aleurone layer 2 by the treatment, and the white birch particles 4 enter into the concave portions of the starchy surface 5, and the water content is removed by adhering to the white birch, the surface of the starchy material 3 is finished beautifully, It is finished in wash-free rice 6 that can be cooked simply by pouring (see FIGS. 2 and 9).
[0028]
Next, the surface of the non-washed rice 6 is covered with white birch added with at least one nutrient among calcium, magnesium, iron and vitamins to form a coating layer 7, which has a high nutritional value and is simply poured with water. Processed rice 8 that can be cooked is obtained (see FIGS. 3 and 10).
[0029]
On the other hand, even if the grain of rice that has undergone milling (for example, 7-minute rice that has been refined to a yield of about 94%) is used as a raw material, it is finished in the same manner as above (in this case, the raw material is 7-minute rice) In this case, even if the starch layer 3 is coated with the cocoon layer 11, the free cocoon on the surface of the rice grain is removed and the surface is finished beautifully, so it will be referred to as non-washed rice).
[0030]
Next, this washing-free rice is coated with white birch added with at least one nutrient among calcium, magnesium, iron and vitamins to form a coating layer 9, which has a very high nutritional value and is simply poured with water. Processed rice 10 that can be cooked is obtained (see FIG. 4).
[0031]
Next, the manufacturing process of the processed rice will be described with reference to FIGS. In FIG. 5, milled rice that has been refined to a yield of about 92% or 7-minute rice that has been refined to a yield of about 94% is mixed with white rice (step 100).AgitationAgitationPolishingIn the machineAgitationAgitationPolishing(Step 101) for a predetermined timeAgitationAgitationPolishingAfter that, the rice grains and the white birch are separated (step 102), the separated rice grains and the white birch added with nutrients are mixed (step 103),MoreFurther, when the rice grains are coated by spraying hot air or water vapor on the rice grains coated with birch (step 104), processed rice is obtained.
[0032]
In FIG. 6, mist, steam or wet air is supplied to polished rice refined to a yield of about 92% or 7-minute rice refined to a yield of about 94%.AgitationStirringPolishingThen, free rice cake adhering to the rice grain is removed (step 110), and white rice cake containing nutrients is mixed into the rice grain (step 111),MoreFurther, when the rice grain is coated by spraying hot air or steam on the rice grain coated with white birch (step 112), processed rice is obtained.
[0033]
FIG. 7 is a schematic longitudinal sectional view showing an apparatus for carrying out the manufacturing process of FIG. When this apparatus is described with reference to FIG. 7, the processed rice production apparatus 12 includes first mixing means 13 for mixing white rice cake with polished rice or rice grains in the process of polishing, rice grains and white rice cake.AgitationStirring・ResearchPolishingDoAgitationAgitationPolishingMeans 14;AgitationStirring・ResearchPolishingSeparating means 15 for separating the separated rice grains from the used white birch, and a second mixing means for re-mixing the separated rice grains with birch grains containing at least one nutrient among calcium, magnesium, iron and vitamins 16, coating means 17 for spraying hot air or steam on the rice grains mixed with white birch to coat the surface of the rice grains, and white birch separated by the separating means 15 are collected, and the white birch is collected in the first mixing means 13 and the second A recycling means 18 for supplying the mixing means 16 to recycle the white birch;,It has.
[0034]
Then, the processed rice production apparatus 12 bisects the perforated wall removing cylinder 20 installed in the vertically long machine casing 19 so that the upper end side is divided.AgitationAgitationPolishingThe lower end side of the means 14 is formed on the coating means 17, and the hollow main shaft 21 that is rotatably supported in the porous wall removal cylinder 20 isAgitationAgitationPolishingThe means 14 and the coating means 17 are provided to be shared.
[0035]
The first mixing means 13 includesAgitationAgitationPolishingA supply cylinder 22 connected to the upper part of the means 14, a supply spiral 23 erected rotatably in the supply cylinder 22, and a white lees adding device 24 provided on the upper part of the supply cylinder 22 to adjust the amount of white lees appropriately. It comprises a supply basket 25 for supplying raw white rice. Also, the aboveAgitationAgitationPolishingThe means 14 includes a perforated wall removing cylinder 20 installed in the machine casing 19 and attached to the main shaft 21 within the perforated wall removing cylinder 20.AgitationThe stirring roll 26, the porous wall removing cylinder 20 and theAgitationIt is formed between the stirring rolls 26AgitationAgitationPolishingA chamber 27, a removal chamber 28 formed between the porous wall removal cylinder 20 and the machine frame 19, and theAgitationAgitationPolishingThe rice grain outlet 29 is provided at the lower part of the chamber 27, and the resistance lid 30 is provided so as to face the rice grain outlet 29. In the case of this embodiment, the separation means is composed of the porous wall removal cylinder 20 and the removal chamber 28.
[0036]
The second mixing means 16 is connected to the mixing channel 31 for applying white rice cake to the rice grains that have flowed out of the resistance lid 30, and is connected to the mixing channel 31 to at least one of calcium, magnesium, iron, and vitamins. The white rice bran supply cylinder 32 for supplying white rice bran containing nutrients, and the cross feed screw 33 and the top feed screw 34 for feeding rice grains from the mixing channel 31 to the coating means 17 are configured. Further, the coating means 17 is mounted on the main shaft 21 within the porous wall removal cylinder 35 and the porous wall removal cylinder 35 installed in the lower part of the machine frame 19.AgitationThe stirring roll 36, the porous wall removing cylinder 35 and the aboveAgitationA coating chamber 37 formed between the stirring roll 36, a removal chamber 38 formed between the porous wall removal cylinder 35 and the machine frame 19, and a product discharge port 39 provided in the upper part of the coating chamber 37. And a resistance lid 40 provided to face the product discharge port 39, and a heat supply path 43 for supplying hot air or steam generated from a heat source (not shown). In addition, the code | symbol 41 is said through the hollow main axis | shaft 21.AgitationAgitationPolishingA blower fan that blows air to the chamber 27 and the coating chamber 37 and removes the dust. Reference numeral 42 denotes a scissors scraping blade that is attached to the main shaft 21 and scrapes off the soot accumulated at the bottom of the scavenging chamber 38.
[0037]
The recycling means 18 is connected to the bottom of the removal chamber 38 and recovers the soot accumulated on the bottom, the recovery conduit 45 for recovering excess soot from the white lees adding device 24, and the recovery conduits 44, 45. A bag filter 46 connected to the other end of the bag, a suction fan 47 connected to the bag filter 46, and a supply pipe 48 for supplying the recovered soot from the lower portion of the bag filter 46 to the white rice cake adding device 24.
[0038]
Next, the operation of the manufacturing apparatus having the above configuration will be described. When the milled rice or the milled rice grains used as raw materials are fed into the first mixing means 13 from the feed mill 25, an appropriate amount of millet (for example, 5% to 1 part by weight of rice grains) is added from the millet adding device 24. 30%). Then, when the supply spiral 23 of the first mixing means 13 is rotated, the rice grains and the white birch are flown at a constant flow rate.AgitationAgitationPolishingSent to means 14. TheAgitationAgitationPolishingThe porous wall removal cylinder 20 in the means 14 has a blind plate on the upper side and a porous wall on the lower side.AgitationWhen the stirring roll 26 rotates, the rice grains are rubbed and the free rice cake adhering to the surface of the rice grains is adhered to the white rice cake,AgitationWhen the agitating roll 26 rotates, the free rice cake adhering to the white rice cake is discharged into the removal chamber 28 by the blast of the blast fan 41, and the rice grains and the white rice cake coated on the rice grains are separated. become.AgitationAgitationPolishingThe rice grains remaining in the chamber 27 become wash-free rice from which the residual aleurone layer has been removed as shown in FIG. In addition, adjustment of the pressure of the resistance lid 30 is performed, for example, when the raw material is polished rice so that the residual aleurone layer is wiped off depending on the type of rice grain.AgitationAgitationPolishingWhen the pressure in the chamber 27 is 100 gf / square centimeter or less and the raw material is rice grains that are in the process of scouringAgitationAgitationPolishingThe pressure in the chamber 27 may be 150 gf / square centimeter or more.
[0039]
Rice grainsAgitationAgitationPolishingWhen reaching the lower part of the chamber 27, it flows down to the mixing channel 31 against the resistance lid 30. A white birch supply cylinder 32 is connected to the mixing channel 31, and white birch containing at least one kind of nutrient among calcium, magnesium, iron and vitamins is supplied, and rice grains and birch are mixed. The rice grains and white rice cake that reach the lower part of the mixing channel 31 are fed by the transverse feed screw 33 and the upper feed screw 34.MoreAnd is supplied to the coating means 17.
[0040]
In the coating means 17, hot air or water vapor from the heat supply path 43 is supplied to the coating chamber 37 via the main shaft 21. Hot air or water vapor may be set to a temperature at which starch is alphatized and does not adversely affect the taste, for example, 55 to 70 ° C. When rice grains coated with white straw containing nutrients are supplied from the feed screw 34 to the coating chamber 37, friction is performed by the stirring roll 36, and the hot air or water vapor is supplied to form white straw. Pregelatinized into starch. And the rice grain in which the surface of the rice grain was coated as shown in FIG. 3 or FIG. 4 is discharged from the product discharge port 39 against the resistance lid 40, has a high nutritional value, and can be cooked simply by pouring water. Can do. The pressure of the resistance lid 40 can be adjusted by setting the pressure in the coating chamber 37 to 80 gf / square centimeter or less regardless of the type of rice grain.
[0041]
In the recycling means 18, the soot in the removal chamber 38 is scraped out by the soot raking blade 42, collected in the bag filter 46 through the recovery pipe 44, and supplied to the white straw adding device 24 from the bottom of the bag filter 46. Is done. As a result,PolishingA white rice bran as an agent cannot be obtained sufficiently, and processed rice can be produced even in a small amount.
[0042]
FIG. 8 is a schematic longitudinal sectional view showing an apparatus for carrying out the manufacturing process of FIG. This apparatus will be described with reference to FIG. 8. The processed rice production apparatus 12 supplies fog, steam or wet air to the rice grains in the process of polished rice or milling.AgitationStirring・ResearchPolishingDoAgitationAgitationPolishingMeans 49;AgitationStirring・ResearchPolishingMixing means 50 for mixing white rice bran containing at least one kind of nutrient among calcium, magnesium, iron and vitamins on the cooked rice grain, and coating means for coating the rice grain surface by spraying hot air or steam on the rice grain mixed with white rice bran 51, and a recycling means 52 for collecting the white rabbit mixed by the mixing means 50, supplying the white rabbit again to the mixing means 50, and reusing the white rabbit.
[0043]
Then, the processed rice production apparatus 12 divides the perforated wall removal cylinder 54 installed in the horizontally long machine casing 53 into three parts, and has one end side thereof.AgitationAgitationPolishingThe other end side of the means 49 is formed on the coating means 51, and the central porous wall removal cylinder is formed on the blind plate 55 to constitute the mixing means 50. And, the hollow main shaft 56 that is rotatably mounted in the porous wall removing cylinder 54 has the above-mentioned structure.AgitationAgitationPolishingThe unit 49, the mixing unit 50, and the coating unit 51 are provided in a long shape so as to be shared.
[0044]
SaidAgitationAgitationPolishingIn the pre-process of the means 49, a raw material supply cylinder 57 connected to the upper part of the machine casing 53 and capable of adjusting the flow rate, and a supply spiral 58 attached to the main shaft 56 at the bottom of the raw material supply cylinder 57 are provided.AgitationStirringPolishingIn the means 49, it is attached to the main shaft 56.AgitationA stirring roll 59, a nozzle 60 that is inserted from one end of the main shaft 56 and supplies mist, steam, or wet air, a wet air supply port 61 that is drilled in the main shaft 56, and the porous wall removal cylinder 54. Composed.
[0045]
The mixing means 50 is pivotally attached to the main shaft 56.AgitationA stirring roll 59, the blind plate 55, a nozzle 62 that passes through the other end of the main shaft 56 and adds white koji containing at least one nutrient among calcium, magnesium, iron and vitamins, and the main shaft 56 It is comprised from the wrinkle supply hole 63 drilled in.
[0046]
Further, the coating means 51 is attached to the main shaft 56.AgitationThe stirring roll 59, the porous wall removing cylinder 54, a nozzle 64 that is inserted from the other end of the main shaft 56 and blows hot air or steam, and a hot air supply port 65 formed in the main shaft 56.
[0047]
Further, the recycling means 52 is configured by a bag hopper 66 so as to collect the white cake leaked from the porous wall removing cylinder 54, and the bag filter 46 and the suction fan 47 of FIG. 7 connected to the kite hopper 66. Is done. Reference numeral 67 is formed between the porous wall removal cylinder 54 and the stirring roll 58.AgitationIt is a stirring friction chamber, the code | symbol 68 is the resistance lid provided facing the product discharge port 69, and the code | symbol 70 is the porous wall removal cylinder 54 andAgitationIt is a coating chamber formed between the stirring roll 58.
[0048]
Next, the operation of the above configuration will be described. When the polished rice or the rice grains that are in the process of milling are put into the raw material supply cylinder 57, they are supplied to the supply spiral 58 while the flow rate of the raw materials is adjusted. And the raw material is fed by the supply spiral 58AgitationStirringPolishingWhen transferred to the means 49, mist, steam or wet air is emitted from the nozzle 60.AgitationThe free rice cake that is supplied to the stirring friction chamber 67 and softened on the surface of the rice grains is softened, and the free rice cake is removed by cutting to form non-washed rice that can be cooked simply by pouring water. At this time, the free soot leaks from the porous wall removing cylinder 54 and is collected in the soot hopper 66B.
[0049]
Next, the non-washed rice is transferred to the mixing means 50, and white rice bran containing at least one nutrient among calcium, magnesium, iron and vitamins is supplied from the nozzle 62,AgitationRice grains and white birch are mixed by the stirring roll 59. And it is supplied to the coating means 51 of the next process.
[0050]
In the coating means 51, hot air or water vapor is supplied from the nozzle 64. The hot air or water vapor is set to a temperature at which starch is alphatized and does not adversely affect the taste, for example, 55 to 70 ° C., and rice grains coated with white birch containing nutrients are supplied to the coating chamber 70. The AndAgitationWhile stirring friction is performed by the stirring roll 59, the white birch is turned into a starch. Then, the surface of the rice grain is coated as shown in FIG. 3 or FIG. 4 and discharged from the product discharge port 69 against the resistance lid 68, so that processed rice can be cooked simply by pouring water. The pressure of the resistance lid 68 may be adjusted by setting the pressure in the coating chamber 70 to 80 gf / square centimeter or less regardless of the type of rice grain.
[0051]
【Example】
Furthermore, the details of the present invention will be described by way of specific examples. For polished rice 1Polishing5 to 20% by weight of white birch as an agent is mixed for about 3 minutesAgitationNext, the white rice cake was removed with a suitable degreasing device to obtain wash-free rice as shown in FIG. 9 where the starch layer was exposed. And the coating agent which mixed 0.6-1.0 weight% calcium powder with respect to the white rice bran 1 is produced | generated, 2.3-6.3 weight% coating agent is mixed with respect to the said unwashed rice 1, and further The processed rice which coat | covered the surface of the rice grain by spraying the hot air or steam of 55-70 degreeC was obtained.
[0052]
The weight of birch per 100 g of the processed rice is 2.3 g to 6.3 g, and the weight of the calcium powder is 12.8 mg to 23 mg. Even compared with the brown rice in Table 1 described above, the calcium content could be exceeded. Thereby, the deficiency of calcium intake can be compensated, bones, teeth, etc. can be kept in hard tissues, and diseases such as osteoporosis can be overcome.
[0053]
Moreover, if a magnesium powder is mixed with the calcium powder of the said Example, absorption of calcium can be accelerated | stimulated. Moreover, if iron is mixed instead of calcium, the amount of hemoglobin in the blood can be increased and anemia can be eliminated. In addition, if vitamin B1 is mixed, beriberi can be prevented, and if vitamin B2 is mixed, it is effective for promoting cell growth and suppressing stomatitis and the like.
[0054]
【The invention's effect】
[0055]
[0056]
As described above, according to the present invention,White rice is mixed with rice grains that are in the process of milled rice or milling, and the rice grains and white rice cake are mixed.AgitationStirringPolishingBy removing the free rice cake adhering to the rice grains, eliminating the need for washing operations, processing into rice grains that can be cooked by simply pouring water, at least one of calcium, magnesium, iron and vitamins in the rice grains While mixing the white rice bran containing various nutrients again and spraying hot air or steam on the rice grain to cover the surface of the rice grain, the rice grain after the milling and the white birch are mixed,AgitationStirringPolishingAs a result, free rice bran adhering to the surface of the rice grain is adhered to the white rice cake, and rice grains that can be cooked simply by pouring water are formed, and this rice grain is mixed with white rice cake containing nutrients such as calcium, iron and vitamins. When hot air or steam is sprayed, the white rice bran becomes alpha and becomes starchy, which has a high nutritional value and can be processed by simply pouring water.
[0057]
Further, as a production method different from the above production method, mist, steam or wet air is supplied to rice grains in the process of polished rice or milling.AgitationStirring・ResearchPolishingBy removing the free rice cake adhering to the rice grains, eliminating the need for washing operations, processing into rice grains that can be cooked by simply pouring water, at least one of calcium, magnesium, iron and vitamins in the rice grains When the white rice bran containing various nutrients is mixed and the surface of the rice grain is coated by spraying hot air or steam on the rice grain, the processed rice of the present invention can be produced even when the white rice for washing-free rice cannot be obtained sufficiently. In other words, supplying fog, steam or wet air to rice grains in the process of polished rice or millingAgitationStirringPolishingBy doing so, the free rice cake adhering to the surface of the rice grain is softened, the free rice cake is removed by cutting, and a rice grain that can be cooked just by pouring water is formed. When this rice grain is mixed with white birch containing nutrients such as calcium, iron, and vitamins, and then blown with hot air or steam, the white birch is turned into a starchy starch that is highly nutritious and can be cooked simply by pouring water. I can make rice.
[0058]
And as an apparatus which implements the manufacturing method of processed rice, the 1st mixing means which mixes white rice cake with the rice grain in the process of polished rice or milling, and the rice grain and white rice cakeAgitationStirring・ResearchPolishingDoAgitationStir polishing means, separation means for separating stir-polished rice grains and used white rice cake, and white rice cake containing at least one nutrient of calcium, magnesium, iron and vitamins to the separated rice grains again Second mixing means, coating means for spraying hot air or steam on the rice grains mixed with white birch to coat the surface of the rice grains, collecting the white birch separated by the separating means, and collecting the white birch into the first mixing means and the first The first mixing means mixes white rice cake with polished rice or rice grains that are in the process of polishing,AgitationIn the agitation polishing means, free rice cake on the surface of the rice grain is adhered to the white rice cake, and rice grains that can be cooked by simply pouring water are formed. In the separation process, the rice grains and white rice cake are separated, and in the second mixing means, only water is poured. The rice grains that can be cooked in are coated with white birch containing nutrients such as calcium, iron, vitamins, etc. In the coating method, hot air or steam is sprayed on the rice grains coated with birch, and the white birch is alpha and starchy Therefore, it is possible to produce processed rice that has high nutritional value and can be cooked simply by pouring water. In the recycling means, the white lees separated by the separating means are supplied to the first mixing means and the second mixing means, and the white lees are reused.
[0059]
Moreover, as an apparatus different from the above apparatus, mist, steam or wet air is supplied to the rice grains in the process of polished rice or milling.AgitationStirringPolishingDoAgitationAgitationPolishingMeans,AgitationStirring・ResearchPolishingMixing means for mixing white rice cake containing at least one nutrient of calcium, magnesium, iron and vitamins into the rice grains, and coating means for coating the rice grain surface by spraying hot air or steam on the rice grains mixed with white rice cake And a recycling means for collecting the white rabbit mixed by the mixing means, supplying the white rabbit again to the mixing means, and reusing the white rabbit.AgitationAgitationPolishingThe means is to supply mist, steam or wet air to the rice grains in the process of milled rice or milling.AgitationWhen stirred, the free rice cake adhering to the surface of the rice grains softens, the free rice cake is removed by cutting, and rice grains that can be cooked simply by pouring water are formed, and the mixing means can be cooked simply by pouring water. White rice cake containing nutrients such as calcium, iron and vitamins is applied to the rice grain, and hot air or steam is sprayed on the rice grain to which the white rice cake has been applied in the coating means, and the white rice cake is pregelatinized to become starchy, with high nutritional value, Processed rice that can be cooked just by pouring water can be produced. Then, in the recycling means, the white straw separated by the separating means is supplied to the mixing means, and the white straw is reused.
[0060]
And the device isAgitationAgitationPolishingAnd one end side of the coating means and the porous wall removal cylinder installed in the machine frame.AgitationAgitationPolishingWhen the other end side is formed in the coating means and the main shaft that is rotatably mounted in the porous wall removing cylinder is shared, the process of milled rice or milling can be performed without using commercially available non-washed rice. It can be continuously produced from processed rice that has high nutritional value and can be cooked just by pouring water.
[Brief description of the drawings]
FIG. 1 is an enlarged cross-sectional view of polished rice that has been refined to a yield of about 92% by a conventional method using a general rice mill.
FIG. 2 is an enlarged cross-sectional view of non-washed rice from which the residual aleurone layer has been removed.
FIG. 3 is an enlarged cross-sectional view of processed rice having high nutritional value according to the present invention.
FIG. 4 is an enlarged sectional view showing another embodiment of the above.
FIG. 5 is a process diagram for carrying out the process for producing processed rice according to the present invention.
FIG. 6 is a process diagram showing another embodiment of the same.
FIG. 7 is a schematic view showing an apparatus for carrying out the method for producing processed rice of the present invention.
FIG. 8 is a schematic diagram showing another embodiment of the above.
FIG. 9 is a drawing-substituting photograph showing an embodiment of the present invention.
FIG. 10 is a drawing substitute photograph showing an embodiment of the present invention.
[Explanation of symbols]
1 Polished rice
2 Residual Aleurone layer
3 Starch
4 White birch particles
5 Starch surface
6 Wash-free rice
7 Coating layer
8 Processed rice
9 Coating layer
10 Processed rice
11 Sakai
12 Processed rice production equipment
13 First mixing means
14AgitationAgitationPolishingmeans
15 Separation means
16 Second mixing means
17 Coating means
18 Recycling means
19 Airframe
20 Porous wall removal cylinder
21 Spindle
22 Supply tube
23 Supply spiral
24 White birch addition equipment
25 Supply fence
26AgitationStirring roll
27AgitationAgitationPolishingRoom
28 Removal room
29 Rice grain outlet
30 resistance plate
31 Mixing channel
32 Birch supply cylinder
33 Transverse screw
34 Top feed screw
35 perforated wall removal cylinder
36AgitationStirring roll
37 Coating room
38 Removal room
39 Product outlet
40 resistance plate
41 Fans
42 Scraping Wings
43 Heat supply path
44 recovery line
45 recovery line
46 Bag Filter
47 Suction fan
48 Supply pipe
49AgitationAgitationPolishingmeans
50 Mixing means
51 Coating means
52 Recycling means
53 Machine frame
54 Porous wall removal cylinder
55 Blind board
56 Spindle
57 Raw material supply cylinder
58 Supply spiral
59AgitationStirring roll
60 nozzles
61 Humidity supply port
62 nozzles
63 糠 Supply hole
64 nozzles
65 Hot air supply port
66 Reed Hopper
67AgitationStir friction chamber
68 Resistance lid
69 Product outlet
70 Coating room

Claims (5)

Polished rice or bran mixed rice grains are in the process of the pearling, to remove free bran adhering to rice grains by 撹 拌-Migaku Ken a該米grains and bran, cook just pour water without washing Processed into rice grains, and the rice grains are mixed again with white birch containing at least one nutrient of calcium, magnesium, iron and vitamins, and hot rice or steam is blown onto the rice grains to make the surface of the rice grains white A method for producing processed rice , characterized by being coated with Rice grains are in the process of the polished rice or pearling mist, by supplying steam or Shimekaze remove free bran adhering to rice grains by 撹 拌-Migaku Ken, of the cook simply pour water without washing The rice grains are processed, and white rice bran containing at least one nutrient of calcium, magnesium, iron and vitamins is mixed with the rice grains, and hot air or steam is sprayed on the rice grains to cover the surface of the rice grains with the white straw A method for producing processed rice , characterized in that . A first mixing means for mixing the bran rice grains are in the process of the polished rice or pearling, rice grains and and the 撹拌polishing means for 撹 拌-Migaku Ken the bran, 撹 拌-Migaku Ken is rice grains and already used Shiranuka Separating means for separating the rice grains, second mixing means for re-mixing white rice cake containing at least one nutrient among calcium, magnesium, iron and vitamins into the separated rice grains, and hot air or Coating means for spraying steam to coat the surface of rice grains; and recycling means for recovering the white rice cake separated by the separating device and supplying the white rice cake to the first mixing device and the second mixing device to reuse the white rice cake. apparatus for carrying out the method according to claim 1, wherein consisting comprise. Rice grains are in the process of the polished rice or pearling fog, and 撹拌研grinding means for 撹 拌-Migaku Ken by supplying steam or Shimekaze, calcium rice grains which are 撹 拌-Migaku Ken, magnesium, iron and vitamins Among them, a mixing means for mixing at least one nutrient-containing white rice cake, a coating means for spraying hot air or steam on the rice grains mixed with white rice cake to coat the surface of the rice grains, and collecting the white rice cake mixed by the mixing means, An apparatus for carrying out the manufacturing method according to claim 2 , further comprising: a recycle unit for supplying the white birch again to the mixing unit and reusing the white birch. The 撹拌研grinding means and the coating means, 撹拌研polish means one end bisects the porous wall bran removing cylinder and internally provided in the machine frame, so as to form the other side coating unit, wherein The apparatus according to claim 3 or 4, wherein the main shaft is rotatably shared in the porous wall removal cylinder.

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