Sutrisno , Bambang Tri (2002) Isolasi dan karakterisasi fraksi kloroform (CHC13) dalam paitan (Tithonia diversifolia, Gray). Undergraduate thesis, FMIPA UNDIP.
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Abstract
Daun paitan (Tithonia diversifolia, Gray) memiliki banyak manfaat, antara lain sebagai tanaman obat dan pestisida. Telah diisolasi senyawa bioaktif dari dawn paitan (Tithonia diversifolia, Gray) dengan metode Kromatografi .Kolom Vakum menggunakan pelarut kloroform. Kristal hasil isolasi memberikan noda tunggal pada berbagai pelarut dan memberikan hasil positif terhadap uji steroid serta mempunyai titik leleh 148 — 149 °C. Analisis spektroskopi dilakukan dengan spektrometri IR dan GC-MS. Dengan analisa MS memberikan puncak-puncak fragnientasi pada mie = 412; 394; 369; 351; 300; 271; 255; 213; 199; 173; 159; 133; 119; 81; 69 dan "base peak"nya 55, Spektrum infra merah memberikan informasi bahwa kristal basil isolasi sedikitnya mengandung gugus OH, C-0, C-H dan Berdasarkan data spektroskopi dan pendekatan kemotaksonomi diusulkan bahwa kristal basil isolasi merupakan senyawa golongan steroid yaitu senyawa stigmasterol yang biasa terdapat dalam tumbuhan tingkat tinggi. Tithonia diversifolia, Gray can be used as medical plant and pesticides. Bioactive compound from Tithonia diversifolia, Gray had been isolated use vacuum column chromatography method by chloroform as the solvent. Isolated crystal melt at 148 — 149 °C and give one spot by TLC. It shows positive test for steroid compound. In analyze with MS gives fragmentation at mile 412, 394, 369, 351, 300, 271, 255, 213, 199, 173, 159, 133, 119, 105, 81, 69 and 55 as the base peak. The crystal contains OH, C-H, C-0, and C=C groups, it was shown by Infra Red spectrum. Based on Infra Red, MS and plant's chemotaxonomy study proposed that isolated crystal is stigmasterol compound.
Item Type: | Thesis (Undergraduate) |
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Subjects: | Q Science > QD Chemistry |
Divisions: | Faculty of Science and Mathematics > Department of Chemistry |
ID Code: | 30890 |
Deposited By: | Mr UPT Perpus 1 |
Deposited On: | 08 Nov 2011 14:39 |
Last Modified: | 08 Nov 2011 14:39 |
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