JP5415837B2 - 圧縮成形性に劣る粉末状の機能性物質から顆粒及び錠剤を製造する方法 - Google Patents
圧縮成形性に劣る粉末状の機能性物質から顆粒及び錠剤を製造する方法 Download PDFInfo
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Description
造粒用結合剤を付着させた機能性物質の粒子同士を接触させることにより造粒を行う工程;
を包含し、両工程は同時に行われてもよい、顆粒の製造方法であって、
該造粒用結合剤が水溶性セルロース誘導体である顆粒の製造方法を提供する。
臼に充填された顆粒を上杵・下杵で圧縮する工程;
を包含する錠剤の製造方法を提供する。
機能性物質とは人体に摂取した後に、体内で意図される作用を奏する物質をいい、医薬品や健康食品でいう有効成分を含む概念である。本願発明の対象となる機能性物質は粉末状の機能性物質であり、特に圧縮成形性に劣る粉末状の機能性物質である。
乾燥した顆粒は、要すれば、整粒を行い、錠剤を製造するために必要な基材(例えば、結合剤、賦形剤、崩壊剤および滑沢剤等)を加えて打錠末を得、これを圧縮成形して錠剤とする。必要な基材としては、一般に顆粒や錠剤を作るために使用するものを使うことができる。具体的には、澱粉、デキストリンなどの澱粉分解物、カラギーナン、寒天、アルギン酸、グアーガム、キトサン、キサンタンガムなどの多糖類、砂糖、ぶどう糖、乳糖、麦芽糖などの単糖、二糖類、フラクトオリゴ糖、マルトオリゴ糖、イソマルトオリゴ糖、ガラクトオリゴ糖、キチンオリゴ糖、キトサンオリゴ糖などのオリゴ糖、マルチトール、ソルビトール、キシリトール、エリスリトールなどの糖アルコール、結晶セルロース、ヒドロキシプロピルセルロース、ヒドロキシプロピルメチルセルロース等のセルロース類、ポリビニルピロリドン等の合成高分子、アラビアゴム、寒天、プルラン、微粒酸化ケイ素、α化デンプン、部分α化デンプン、CMC-Ca、デンプングリコール酸ナトリウム、ステアリン酸マグネシウム、ステアリン酸カルシウム、ステアリン酸、ショ糖脂肪酸エステル、硬化油、植物油脂等が挙げられる。
で一定量にすりきり、上下の杵で圧縮して行われる。打錠機は公知のものがなんらの制限もなく使用することができる。打錠圧は錠剤硬度が流通に十分耐えうる硬度になるように調整すればよい。
顆粒の調製
粒子寸法が83メッシュ篩過のグルコサミン粉末(甲陽ケミカル(株)社製「コーヨーグルコサミン80」)及び粒子寸法が42メッシュ篩過のグルコサミン粉末(甲陽ケミカル(株)社製「コーヨーグルコサミン」)を質量比3/1で混合して、造粒用機能性物質とした。造粒用結合剤としてヒドロキシプロピルメチルセルロース(信越化学工業株式会社製「メトローズSE−06」)を準備し、その8%水溶液を調製して噴霧液を得た。
得られた顆粒のかさ密度の測定を行った。かさ密度は、顆粒を100mlの容器にすり切り一杯充填して、重量を測定後、次式によって算出した。
結果を表1に示す。
得られたグルコサミン含有顆粒に、結晶セルロース(旭化成ケミカルズ株式会社製「セオラスUF−F702」)及び滑沢剤としてステアリン酸カルシウム(堺化学社製)を混合して打錠末を得た。打錠機(畑鉄工所製「HT−AP12SS−U」)を用いて打錠末を打錠加工し、8mm丸φ250mgの錠剤を得た。その際、打錠圧は5〜15kNの範囲で変化させた。また、各成分の量は、形成される錠剤を100%として、結晶セルロースが0.55%、ステアリン酸カルシウムが0.80%となるように調節した。
富山産業株式会社製「錠剤破壊強度測定器TH−303MP」を用いて得られた錠剤の硬度を測定した。結果を図1に示す。
機能性物質(グルコサミン)の粒子構成を表1の「粒子の混合比」の欄に示したように変更すること以外は実施例1と同様にして錠剤を調製し、硬度を測定した。結果を図1に示す。
ヒドロキシプロピルメチルセルロースの代わりに水を噴霧して行い、造粒部にヒドロキシプロピルメチルセルロースを4.72%添加して造粒すること以外は実施例1と同様にして錠剤を調製し、硬度を測定した。結果を図1に示す。
ヒドロキシプロピルメチルセルロースの代わりにデキストリン(松谷化学工業株式会社製「パインデックス#100」)を用いること以外は実施例1と同様にして錠剤を調製し、硬度を測定した。結果を図1に示す。
Claims (9)
- 圧縮成形性に劣る粉末状の機能性物質に対し、微細化された造粒用結合剤を均一に付着させる工程;及び
造粒用結合剤を付着させた機能性物質の粒子同士を接触させることにより造粒を行う工程;
を包含し、両工程は同時に行われてもよい、顆粒の製造方法であって、
該粉末状の機能性物質が粗粒子、及び粗粒子の平均粒度に対して1/3以下の平均粒度を有する細粒子を混合したグルコサミンであり、
該造粒用結合剤が水溶性セルロース誘導体である顆粒の製造方法。 - 前記水溶性セルロース誘導体がヒドロキシプロピルセルロース及びヒドロキシプロピルメチルセルロースからなる群から選択される少なくとも一種である請求項1に記載の方法。
- 前記粗粒子と細粒子との混合比が、粗粒子100質量部に対して細粒子50〜500質量部である請求項1又は2に記載の方法。
- 前記粗粒子の平均粒度が180μm以上である請求項1〜3のいずれか一項に記載の方法。
- 造粒用結合剤は、顆粒中の含有量が10質量%以下になるような量で用いられる請求項1〜4のいずれか一項に記載の方法。
- 請求項1〜5のいずれか一項に記載の方法によって得られる顆粒。
- 請求項6に記載の顆粒を含む打錠末を筒状の臼に充填する工程;及び
臼に充填された顆粒を上杵・下杵で圧縮する工程;
を包含する錠剤の製造方法。 - 請求項7に記載の方法によって得られる錠剤。
- 結合剤、賦形剤、崩壊剤及び滑沢剤を合計した含有量が10質量%以下である請求項8に記載の錠剤。
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