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All Journal Indonesian Journal of Chemical Science and Technology Jurnal Farmasi Indonesia
Fadhilah, Nabila Nur
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Materials Science & Nanotechnology Medicine & Pharmacology

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The LC-MS of Grammatophyllum scriptum (Lindl.)Bl. and Cytoxic Activity Test: LC-MS of Grammatophyllum scriptum (Lindl.)Bl. and Cytoxic Activity Test de Fretes, Christina; Simaremare, Eva; Gunawan, Elsye; Agustini, Verena; Maulana, Yusuf Eka; Fadhilah, Nabila Nur
JFIOnline | Print ISSN 1412-1107 | e-ISSN 2355-696X Vol 13 No 2 (2021): Jurnal Farmasi Indonesia
Publisher : Pengurus Pusat Ikatan Apoteker Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (681.143 KB) | DOI: 10.35617/jfionline.v13i2.33

Abstract

Tiger orchid (Grammatophyllum scriptum (Lindl.) Bl.) It is one of the plants that are favored among the community as ornamental plants because of its beautiful flowers. Tiger orchids have secondary metabolite compounds of alkaloids, flavonoids, and tannins that can be used as traditional medicine. However, research on tiger orchids in the field of pharmacology is still very limited. The purpose of this study is to find out the content of chemical compounds contained in the herb extract of tiger orchids (Grammatophyllum scriptum (Lindl.) Bl.) as well as LC₅₀ and concentration of tiger orchid herb extract (Grammatophyllum scriptum (Lindl.) Bl.) It most effectively kills shrimp larvae (Artemia salina Leach.). The sample used was sampled using 96% ethanol. Tiger orchid (Grammatophyllum scriptum (Lindl.) Bl.) pregnant 2′,6′-Dihydroxy-4′-methoxy-dihydrochalcone, apigenin-7-O-α-L-rhamnose(1→4)-6"-O-acetyl-β-D-glucoside, kushenol H, rubrofusarin, 3-hydroxy baicalein and luteolin obtained from the results of the analysis using Liquid Chromatography Mass Spectrometry (LCMS). The results showed that the herb extract of tiger orchid (Grammatophyllum scriptum (Lindl.) Bl.) has cytotoxic activity with an LC₅₀ value of 150.96 ppm.
Kinetics Study Addition Reaction for Methyleugenol with Formic Acid to Produce The Methyleugenol Formic Ester as Intermediate Compound of Hypertension Drug Fadhilah, Nabila Nur; Nugraha, Asep Wahyu; Purba, Jamalum; Dibyanti, Ratu Evina
Indonesian Journal of Chemical Science and Technology (IJCST) Vol. 8 No. 2 (2025): JULY 2025
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v8i2.68778

Abstract

The methyl eugenol formic ester is the intermediate formation of the 1-(3,4-dimethoxy phenyl)-2-amino-2-cyano propane compound, a hypertension drug. This study aimed to find the value of the reaction order and study the mechanism of an addition reaction of methyl eugenol with formic acid to produce the methyl eugenol formic ester. Gas chromatography analysis of the residual methyl eugenol determines the reaction order. There are two dominant products in the synthesis of methyl eugenol formic ester, resulting in the formation reaction of methyl eugenol formic predictable in a two-way reaction mechanism. The determination of the energy of the reactants, products, and transition compounds in the formation reaction of methyl eugenol formic ester compound prescribed through computational studies using NWChem 6.0 and visualization using Jmol. The results of the analysis of the data obtained several conclusions: The value of the reaction ordered for methyl eugenol with formic acid is the first order. Based on the computational result shows that the enthalpy change for the reaction product is ΔH(1) = -47,810 KJ/mol and ΔH(2) = -60,545 KJ/mol. The activation energy for both transition compounds is Ea(1) = 163,1937 KJ/mol and Ea(2) = 370,3477 KJ/mol. This fact indicates that the formation of methyl eugenol formic ester compound using the method (1) was more likely than (2). The prediction is based on the determination of Ea with the computational chemistry following the experimental result, which shows the product of (1) more than the product of (2).
Co-Authors Asep Wahyu Nugraha de Fretes, Christina Elsye Gunawan Jamalum Purba Maulana, Yusuf Eka Ratu Evina Dibyantini Simaremare, Eva Verena Agustini