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All Journal Chimica et Natura Acta Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat IJOEP : International Journal of Ecophysiology JOURNAL OF CHEMICAL NATURAL RESOURCES (JCNaR) Journal of The Indonesian Society of Integrated Chemistry
Sembiring, Helmina Br.
Departmen Kimia, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Social Sciences

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Journal : JOURNAL OF CHEMICAL NATURAL RESOURCES (JCNaR)

 1 
Isolation and Identification of Flavonoids from Mundu Plant Leaves (Garcinia Dulcis (Roxb.) Kurz) Hutagalung, Natalia; Sembiring, Helmina Br.
Journal of Chemical Natural Resources Vol. 4 No. 2 (2022): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jcnar.v4i2.11971

Abstract

Isolation and identification of the flavonoid compounds found in the leaves of the mundu plant (Garcinia dulcis (Roxb.) Kurz) have been carried out. The leaves of the mundu plant were extracted by maceration with methanol solvent. The concentrated methanol extract was added to distilled water and then filtered. Aquadest filtrate partitioned with ethyl acetate. Concentrated ethyl acetate extract was dissolved with methanol and partitioned with n-hexane solvent. The concentrated methanol extract was analyzed by thin layer chromatography and separated by column chromatography with chloroform as eluent: methanol (90:10) v/v ; (80;20) v/v ; (70:30) v/v ; (60:40) v/v. The compounds obtained were purified by preparative thin layer chromatography, producing a yellow amorphous solid of 8.4 mg with a value of Rf = 0.35 using chloroform: ethyl acetate (40:60) v/v as the eluent. The compounds obtained were analyzed using UV-Visible Spectrophotometer, Infrared Spectrophotometer (FT-IR), and Proton Nuclear Magnetic Resonance Spectrophotometer ( 1H-NMR). Based on the analysis and interpretation of spectroscopic data, it is suspected that the isolated compounds obtained are flavonoid compounds, namely the biflavonoid group.
Isolation and Identification of Phenolic Compounds from Ebony Plant Leaves (Diospyros celebica Bakh.) Purba, Yuni Romasni; Sembiring, Helmina Br.
Journal of Chemical Natural Resources Vol. 4 No. 2 (2022): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jcnar.v4i2.11972

Abstract

Isolation of phenolic compounds from Ebony plant leaves (Diospyros celebica Bakh .) was done by maceration technique with methanol solvent. The concentrated extract of methanol dissolved with distilled water and partition was extracted with ethyl acetate. The concentrated ethyl acetate extract dissolved with methanol solvent and partitioned with n-hexane. Then Thin layer chromatography was analyzed before column chromatography, and the eluent suitable for separation is chloroform: methanol 90:10, 80:20, 70:30,60:40,50:50 (v/v) as mobile phase. The compounds were purified with a thin layer preparative and crystallization yielding yellow paste weighing 7.5 mg with Rf = 0.45. The test purity of compounds is done by thin layer  chromatography showing a single spot with eluent chloroform: ethyl acetate (50:50) v/v and n-hexane: ethyl acetate ( 80:20) v/v. The following compound was further indicated by Ultraviolet-Visible Spectrophotometer (UV-Vis), Fourier Transform Infra Red Spectrophotometer (FT-IR), and Proton Nuclear Magnetic Resonancy Spectrophotometer (1H-NMR) was estimated as a phenolic methyl gallate, phenolic acid.
Co-Authors Agung Pratama Andriayani Daulay, Amru Hutagalung, Natalia JUNEDI GINTING Lamek Marpaung Lamek Marpaung, Lamek Lubis, Fatmawati Marpongahtun Muhammad Taufik Murni Suryani Lumbantoruan Prayugo, Aniza Salviana Purba, Yuni Romasni Sovia Lenny Yendri Nofira