Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia
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@article{JKSA18735, author = {Afrezza Rosyid and Enny Fachriyah and Dewi Kusrini}, title = {Isolasi, Identifikasi dan Uji Aktivitas Senyawa Triterpenoid Rimpang Bengle (Zingiber cassumunar Roxb.) sebagai Antibakteri}, journal = {Jurnal Kimia Sains dan Aplikasi}, volume = {19}, number = {1}, year = {2016}, keywords = {isolasi; Zingiber cassumunar Roxb.; triterpenoid; Liebermann-Burchard; antibakteri}, abstract = {Penelitian mengenai isolasi, identifikasi dan uji aktivitas senyawa triterpenoid rimpang bengle (Zingiber cassumunar Roxb) sebagai antibakteri telah dilakukan. Penelitian ini bertujuan untuk mendapatkan senyawa golongan triterpenoid dari rimpang bengle serta mengetahui aktivitasnya terhadap bakteri E.coli dan S.aureus . Tahapan penelitian ini meliputi ekstraksi menggunakan etanol 96% dan kemudian dipartisi dengan n-heksana. Ekstrak n-heksana yang telah dipekatkan kemudian dilakukan kromatografi kolom. Identifikasi fraksi kolom yang positif mengandung triterpenoid dilakukan dengan menggunakan pereaksi Liebermann-Burchard. Fraksi positif triterpenoid selanjutnya dipisahkan melalui metode kromatografi preparatif. Isolat yang didapat selanjutnya diuji kemurnian menggunakan metode KLT berbagai eluen dan KLT dua dimensi. Isolat juga dianalisis menggunakan FT-IR dan KG-SM. Hasil analisis FT-IR menunjukkan isolat memiliki vibrasi pada bilangan gelombang 2924 cm -1 yang merupakan vibrasi ulur C-H asimetri, 2862 cm -1 vibrasi ulur C-H simetri, 1720 cm -1 vibrasi ulur C=O, 1465 cm -1 vibrasi tekuk C-H dari CH2, 1395 cm -1 adalah vibrasi gugus gem-dimetil. Hasil analisis KG-SM menunjukkan isolat memiliki waktu retensi 24,5 menit, bobot molekul 426, dengan puncak dasar m/z 69. Berdasarkan database isolat merupakan senyawa friedelen-3-o.}, issn = {2597-9914}, pages = {1--6} doi = {10.14710/jksa.19.1.1-6}, url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/18735} }
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