Skripsi
UJI TOKSISITAS DAN ISOLASI SENYAWA TRITERPENOID DARI EKSTRAK METANOL BATANG TUMBUHAN KATEMAS (Euphorbia geniculata Ortega)
The aim of this research are isolated and characterized triterpenoid from methanol extract of katemas stem {Euphorbia geniculata ortega). To evaluate toxicity of methanol exctract have been conducted mortality test against armyworm larvae {spodoptera litura). The assay was carry out with no choise test method using variances of extract methanol concentration (0%, 1%, 2%, 3%, 4%, 5%). The highest mortality was displayed at 5% concentration while the 50% of lethal concentration (LC50) at 3,92%. The isolation process was conducted by a series work steps such as extraction, fractionation and purification. Extraction process was done by maceration method using methanol as a solvent. Fractionation and purification were conducted by a vary of chromatography techniques. Three compounds have been succesful isolated from isolation proces i.e. compound 1 (63 mg), compound 2 (1 mg), and compound 3 (2 mg). One of them (compound 1) has been identified by spectroscopy data analysis ('H-NMR, uC-NMR, HSQC and HMBC). The identified compound is pentacyclic triterpenoid namely lupeol asetat.
Inventory Code | Barcode | Call Number | Location | Status |
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1407000371 | T65655 | T656552014 | Central Library (REFERENCES) | Available but not for loan - Not for Loan |
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