Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia
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@article{JKSA18552, author = {Irma Yunitasari and Agustina Aminin and Khairul Anam}, title = {Aktivitas Inhibisi α-Glukosidase dan Identifikasi Senyawa dalam Fraksi Aktif Bunga Rosella (Hibiscus Sabdariffa L.)}, journal = {Jurnal Kimia Sains dan Aplikasi}, volume = {18}, number = {3}, year = {2015}, keywords = {Inhibisi α-glukosidase; rosella (Hibiscus sabdariffa L); flavonoid}, abstract = {Rosela merupakan tanaman yang dapat digunakan untuk mengatasi penyakit diabetes melitus (DM), dalam terapi DM dapat dilakukan dengan menghambat kerja enzim α-glukosidase. Penelitian ini bertujuan untuk mendapatkan fraksi aktif dari ekstrak bunga rosella yang berpotensi sebagai inhibitor α-glukosidase dan mengidentifikasi jenis senyawa dalam fraksi aktif tersebut . Metode yang digunakan pada penelitian ini adalah ekstraksi menggunakan pelarut metanol-HCl 0,1%, dilanjutkan fraksinasi secara kromatografi kolom dengan fasa diam sephadex LH-20 dan fasa gerak air-metanol fraksi A (100:0), fraksi B (75:25), fraksi C (50:50), fraksi D (25:75), fraksi E (0:100), dan uji aktivitas inhibisi α-glukosidase fraksi bunga rosella. Identifikasi senyawa aktif yang memberikan nilai aktivitas penghambatan α-glukosidase paling tinggi dengan KLT dan penampak bercak (AlCl 3 , uap amoniak dan FeCl 3 ), penentuan kadar relatif (%) komponen dari fraksi aktif dengan TLC scanner, dan karakterisasi senyawa utama dalam fraksi aktif menggunakan spektrofotometer UV-Vis dan FTIR. Hasil penelitian menunjukan bahwa fraksi C (50:50) merupakan fraksi aktif yang memberikan nilai aktivitas inhibisi α-glukosidase paling tinggi (31,163 %) pada konsentrasi 1000 ppm, dan senyawa utama dalam fraksi C adalah 3,3’,4’-trihidroksiflavon dan 5,7,3’,4’-tetrahidroksiflavon dengan masing-masing kadar relatif 23,33% dan 24,52 %.}, issn = {2597-9914}, pages = {110--115} doi = {10.14710/jksa.18.3.110-115}, url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/18552} }
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Rosella Petal Extract (Hibiscus sabdariffa Linn.) as a Reducing Agent in Silver Nanoparticle Synthesis and Its Antibacterial Activity
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