Muhamad Widyo Wartono
Chemistry Departement, Faculty Of Mathematics And Natural Sciences, Universitas Sebelas Maret, Surakarta

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Isolation and Identification of β-Sitosterol and Stigmasterol Mixture from Root Bark of Slatri (Calophyllum soulattri Burm. f) Doni Eko Saputra; Nestri Handayani; Muhammad Widyo Wartono
ALCHEMY Jurnal Penelitian Kimia Vol 10, No 1 (2014): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.10.1.14.87-93

Abstract

Chemical isolation and identificationof root bark of CalophyllumsoulattriBurm. f. have been conducted. Isolation was conducted by maceration with ethyl acetate as solvent. Ethyl acetate extract was separated and purified by vacuum liquid chromatography and flash chromatography which was guided by thin layer chromatography to obtain yellowish white solid. Isolated compounds were determined by spectroscopy methods such as UV, FTIR, 1H NMR, 13C NMR, DEPT, HSQC, HMBC and were compared to the references. Based on the analysis result it’s known that the compounds are the mixture of?-sitosterol and stigmasterol.
Steroid Β-Sitosterol Dari Kayu Batang Slatri (Calophyllum soulattri BURM. F) Soerya Dewi Marliyana; Muhamad Widyo Wartono; Ida Dahlia
JPSCR: Journal of Pharmaceutical Science and Clinical Research Vol 6, No 1 (2021)
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jpscr.v6i1.44850

Abstract

Callophyllum soulattri Burm. F. merupakan salah satu spesies dari genus Callophyllum. Salah satu kandungan metabolit sekunder dari C. soulatrri adalah golongan senyawa steroid. Golongan steroid mempunyai beragam bioaktivitas antara lain antiinflamsi, antioksidan, antipoliferasi, antibakteri, antimalaria dan antikanker. Eksplorasi tumbuhan C. soulatrri masih terbatas oleh karena itu perlu dilakukan isolasi dan identifikasi metabolit sekunder dari tumbuhan tersebut. Satu senyawa golongan steroid telah berhasil diisolasi dan diidentifikasi dari ekstrak kayu batang C. soulattri. Metanol dipakai sebagai pelarut untuk maserasi, sedangkan fraksinasi dan pemurnian menggunakan metode Kromatgrafi Vakum Cair (KVC) yang dipantau dengan Kromatografi Lapis Tipis (KLT). Senyawa hasil isolasi ditentukan strukturnya dengan metode spektroskopi FTIR dan NMR (1H NMR, 13C NMR, HSQC dan HMBC) serta dibandingkan dengan pustaka. Berdasarkan hasil interpretasi spektra FTIR dan NMR, senyawa yang berhasil diisolasi dari ekstrak metanol kayu batang C. soulatrri adalah β-sitosterol berbentuk padatan berwarna putih.
Synthesis and Characterization of Anethole-lauryl Methacrylate Copolymer via Cationic Polymerization Handayani, Desi Suci; Tahara, Alfia Uke; Firdaus, Maulidan; Suryanti, Venty; Kusumaningsih, Triana; Marliyana, Soerya Dewi; Wibowo, Fajar Rakhman; Wartono, Muhammad Widyo
Molekul Vol 18 No 3 (2023)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2023.18.3.7078

Abstract

The synthesis of anethole-lauryl methacrylate (LMA) copolymer had been carried out by cationic polymerization using BF3O(C2H5)2 as the initiator without the use of solvent at room temperature (28-30 °C) over atmospheric N2 conditions. Polymerization was conducted by varying LMA concentration i.e. 2%, 4%, and 6%, (w/w) with respect to the anethole weight. Structural determination of co-poly(anethole-LMA) was done using FTIR and 1H-NMR spectrophotometer. The relative molecular weight (Mv) of co-poly (anethole-LMA) was measured by an Ostwald Viscometer at room temperature. Morphological characterization and surface area analysis of co-poly(anethole-LMA) was performed using SEM and SAA, respectively. The successful synthesis of co-poly(anethole-LMA) was proven by the disappearance of vinyl group absorption at 1696, 1638, 965, and 938 cm-1 of the FTIR spectra, as well as the loss of vinyl group proton signals at 6.4-5.5 ppm in the 1H-NMR spectra. Increasing the weight of the LMA affected the characteristics of co-poly(anethole-LMA). The relative molecular weight of co-poly(anethole-LMA) was found to rise by increasing the weight of LMA. The Mv of co-poly(anethole-LMA) 2%, 4%, and 6% were 32378.62, 50611.05, and 65133.79 g/mol, respectively. The morphology of co-poly(anethole-LMA) showed that the surface distance between particles was getting tighter and the highest surface area in co-poly(Anethole-LMA) 6% was 233.80 m2/g.
Labdane Aldehyde Diterpenoids from Curcuma mangga Rhizome Wartono, Muhammad Widyo; Aini, Qurotul; Suryanti, Venty; Firdaus, Maulidan; Rakhman Wibowo, Fajar; Dewi Marliyana, Soerya; Kusumaningsih, Triana; Suci Handayani, Desi
The Journal of Pure and Applied Chemistry Research Vol. 12 No. 3 (2023): September-December 2023
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2023.012.03.694

Abstract

Curcuma mangga val. (Zingiberaceae) is one of the plants that used as traditional medicine by Indonesian. Several studies have been reported on the content of compounds of C. mangga, but it is not yet known which compounds have medicinal properties. In this study, two labdane diterpenes were isolated from the extract of rhizome of C. mangga. Determination of the structure conducted by NMR (1H, 13C, HSQC and HMBC) that obtained two compounds, calcaratarin A (1) and labda-8(17),12-diene-15,16-dial (2). Both compounds have an aldehyde functional group. However, both compounds did not show antibacterial activity on Escherichia coli.