<![CDATA[AbstrakKarakteristik serbuk merupakan hal yang penting untuk dipertimbangkan dalam proses pembuatan tablet, salah satunya akan mempengaruhi sifat alir massa cetak. Bahan pengisi tablet yang sering digunakan adalah selulosa mikrokristal. Penelitian ini bertujuan untuk mengetahui karakteristik serbuk selulosa mikrokristal hasil isolasi dari tanaman rami. Metode penelitian ini meliputi penyiapan bahan baku serat rami, isolasi α-selulosa, pembuatan selulosa mikrokristal, dan karakterisasi selulosa mikrokristal. Hasil penelitian menunjukan rendemen selulosa mikrokristal sebesar 56,103%. Hasil karakterisasi serbuk selulosa mikrokristal meliputi reaksi warna, organoleptis, kelarutan, titik lebur, dan pH menunjukan kemiripan karakteristik dengan Avicel® PH 102 sebagai pembanding, kadar kelembapan selulosa mikrokristal hasil isolasi dan Avicel® PH 102 sebesar 0,88% dan 0,56%, laju alir 1,487 g/s dan 2,524g/s, sudut istirahat 28,5o dan 26,194o, kerapatan sejati 1,561 g/cm3 dan 1,533 g/cm3, kerapatan curah 0,326 g/cm3 dan 0,374 g/cm3, kerapatan mampat 0,435 g/cm3 dan 0,483 g/cm3, kompresibilitas 25,057% dan 22,567%, ukuran partikel dengan PSA 81,34 µm dan 129,9 µm. Kata kunci : karakteristik, serbuk, selulosa mikrokristal, rami. AbstractPowder characteristics are important to consider in the process of making tablets, one of which will affect the mass flow properties of the prints. The most commonly used tablet filler material is microcrystalline cellulose. The purpose of this research is to know the characteristic of microcrystalline cellulose powder from isolation from ramie. Methods of this study include preparation of raw materials of ramie fiber, α-cellulose insulation, microcrystalline cellulose manufacturing, and microcrystalline cellulose characterization. The result showed that microcrystalline cellulose yield was 56.103%. The results of characterization of microcrystalline cellulose powders include color reaction, organoleptic, solubility, melting point, and pH shown similarity in characteristic to Avicel® PH 102 as comparison, moisture content of microcrystalline cellulose and Avicel® PH 102 was 0.88% and 0.56%, flow rate at 1.487 g/s and 2.524 g/s, resting angle at 28.5o and 26.194o, true density at 1.561 g/cm3 and 1.533 g/cm3, bulk density at 0.326 g/cm3 and 0.374 g/cm3 , tapped density at 0.435 g/cm3 and 0.483 g/cm3, compressibility at 25.057% and 22.567%, particle size with PSA 81.34 μm and 129.9 μm. Keywords : characteristics, powders, microcrystalline cellulose, ramie.]]>
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