SPECTROSCOPICAL STUDY OF AN ETHER FRACTION ISOLATE FROM STEAM BARK OF “ JATI” (Tectona grandis, L) | Zendy

Fredryk Mandey | Zendy; Raimundus Chalik | Zendy; Ismail Ibrahim | Zendy

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SPECTROSCOPICAL STUDY OF AN ETHER FRACTION ISOLATE FROM STEAM BARK OF “ JATI” (Tectona grandis, L)

Author(s) -

Fredryk Mandey,

Raimundus Chalik,

Ismail Ibrahim

Publication year - 2010

Publication title -

indonesian journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.273

H-Index - 14

eISSN - 2460-1578

pISSN - 1411-9420

DOI - 10.22146/ijc.21548

Subject(s) - chemistry , column chromatography , betulinic acid , fraction (chemistry) , ethyl acetate , methanol , ether , bark (sound) , chromatography , petroleum ether , solvent , fourier transform infrared spectroscopy , hexane , diethyl ether , nuclear chemistry , organic chemistry , extraction (chemistry) , physics , quantum mechanics , acoustics , biology , genetics

This research is aimed to primarily study the spectroscopy of ether fraction of from Jati wood (T. grandis, L). The stem bark of T.grandis, L was firstly extracted undergoes a reflux in methanol solvent. Further, the dried methanol crude extract was extracted with diethyl ether and moreover separated its chemical constituents by using of column chromatography using degraded mixtures of n-hexane – ethyl acetate from 9:1 to 7:3. After a final column chromatography from the E fraction, a white needles crystal with a melting point of 295 – 297.5 °C was resulted. This results was then confirmed undergoes a spectroscopic analysis including UV, FTIR, H-NMR, and Mass spectroscopy to get an acid of 3β-hydroxy-20(29)-lupen-28-oic or commonly known as betulinic acid.

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