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Enkapsulasi Rutin: Preparasi, Karakterisasi dan Studi Controlled Release Secara In Vitro
ABSTRAK
Penelitian enkapsulasi senyawa rutin dilakukan dengan metode coaservation menggunakan penyalut kitosan dan crosslinker natrium tripolifosfat. Tujuan dari penelitian ini, untuk memperoleh karakter dari produk enkapsulasi rutin. Pengaruh masa senyawa rutin awal pada beberapa parameter enkapsulasi meliputi loading capacity (LC) dan efisiensi enkapsulasi (EE) telah ditentukan. Kinerja controlled release terhadap produk diinvestigasi. Analisis terhadap produk dilakukan menggunakan spektrofotometri UV-vis, Fourier Transform Infrared (FTIR) spectroscopy dan Scanning Electron Microscopy (SEM). Hasil menunjukkan %LC dan %EE cenderung meningkat dengan kenaikan masa awal rutin yang digunakan dalam enkapsulasi. Nilai tertinggi %LC (32,1%) dan %EE (94,36%) diperoleh pada konsentrasi 11,25 mM. Analisis controlled release dilakukan di simulated gastric fluid dan intestinal fluid pada temperatur ruang. Hasil rilis menunjukkan, produk enkapsulasi dengan %LC tertinggi mempunyai rilis yang lebih besar dibandingkan produk dengan %LC minimum. Adanya pergeseran pita serapan dan munculnya puncak baru dari P=O streching dikaitkan kemungkinan kelompok amino yang terlibat taut silang (ionic crosslink) dengan phosphat dari TPP. Keberhasilan enkapsulasi rutin ditunjukkan dengan kehadiran karakteristik rutin pada produk yang mulanya absen terhadap spektrum CS dan CS-TPP, mengindikasikan rutin yang termuat dalam matriks kitosan. Morfologi permukaan produk enkapsulasi menunjukkan permukaan yang lebih kasar dan berpori dibandingkan dengan kitosan-TPP (blanko).
Kata kunci : rutin, enkapsulasi, coaservation, controlled release
ABSTRACT
Rutin loaded chitosan-tpp microcapsule was prepared by coacervation method. The aim of this research to obtain characterization of rutin loaded chitosan-tpp. The influences of the initial rutin content on loading capacity (LC) and encapsulation efficiency (EE) of rutin loaded chitosan-tpp particles were investigated. The controlled release performance of the product was also investigated. The success of rutin encapsulation was confirmed by UV-Vis spectrophotometry, Fourier Transform Infrared (FTIR) spectroscopy, and Scanning Electron Microscopy (SEM). The result showed that %LC and % EE increased with increasing of initial rutin content. The highest of %LC (32,1%) and %EE (94,36%) were obtained at 11,25 mM. Furthermore, the controlled release of particles with minimum and optimum %LC were also investigated in simulated gastric fluid and intestinal fluid at ambient temperature. The results suggested that particles with optimum LC had higher release than minimum LC. In the FTIR spectrum of CS-TPP showed, cross-linking of CS-TPP was indicated by shift of absorption band and the presence of new band from P=O streching at spectrum of CS-TPP microparticles. While on spectrum of chitosan-rutin microparticles confirms the incorporation of rutin in the product, which were absent in FTIR spectrum of chitosan and chitosan-TPP microparticles, indicated the presence of rutin compounds load in the chitosan microparticles. SEM analysis showed more surface roughness and porosity in rutin loaded microcapsules than plain particles
Keywords : rutin, encapsulation, coaservation, controlled release
1423C17IV | 1423 C 17-iv | Perpustakaan FSM Undip (Referensi) | Tersedia |
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