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All Journal JURNAL KIMIA SAINS DAN APLIKASI
Surya Dewi Marliyana
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Surakarta|Sebelas Maret University|Indonesia
Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering

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Stigmasterol and Stigmasterone from Methanol Extract of Calophyllum soulattri Burm. F. Stem Bark Surya Dewi Marliyana; Fajar Rakhman Wibowo; Desi Suci Handayani; Triana Kusumaningsih; Venty Suryanti; Maulidan Firdaus; Ema Nur Annisa
Jurnal Kimia Sains dan Aplikasi Vol 24, No 4 (2021): Volume 24 Issue 4 Year 2021
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2478.986 KB) | DOI: 10.14710/jksa.24.4.108-113

Abstract

Stigmasterol and Stigmasterone from Methanol Extract of Calophyllum soulattri Burm. F. Stem Bark. Calophyllum soulattri Burm. F. has been widely used for herbal medicine. Phytochemical investigation of C. soulattri contains a secondary metabolite of the steroid class. Steroid compounds have various biological activities, such as anti-inflammatory, antioxidant, antiproliferative, antibacterial, antimalarial, and anticancer. Two secondary metabolites steroids have been isolated and identified from the stem bark extract of C. soulattri. Isolation was carried out through the extraction (maceration), fractionation, and purification stages. Maceration is carried out using methanol as a solvent. Fractionation was carried out by vacuum liquid chromatography (VLC), and purification was by flash column chromatography. Identification of combined fractions and determination of pure isolates were used through thin-layer chromatography (TLC). The solvent used in the chromatography methods was a mixture of n-hexane and ethyl acetate. The structure isolates were identified by FTIR, 1H NMR, and 13C NMR and compared with literature data. Secondary metabolites steroids that have been isolated are identical compounds to stigmasterol and stigmasterone.
Synthesis of Cardanol-Based Acetaldehyde Novolac Resin from Cashew Nut Shell Liquid (CNSL) Surya Dewi Marliyana; Sayekti Wahyuningsih; Nisa Nur Hayati
Jurnal Kimia Sains dan Aplikasi Vol 25, No 9 (2022): Volume 25 Issue 9 Year 2022
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.25.9.316-321

Abstract

Polymers are currently in the limelight. Phenolic resin is one of the polymer products obtained from the polymerization process, either from natural or synthetic sources. One of the natural compounds that can be applied to polymers is cardanol. This study aimed to synthesize cardanol-based acetaldehyde novolac resin from Cashew Nut Shell Liquid (CNSL). Isolation of cardanol from CNSL was done by liquid-liquid extraction method with acetone and purified by gravity column chromatography in a mixture of n-hexane and ethyl acetate in a ratio of 9:1. HPLC analysis showed that cardanol compounds had aliphatic chains with different levels of saturation and the yield was 18.48%. The cardanol-acetaldehyde novolac resin was synthesized through a condensation polymerization reaction with a cardanol-acetaldehyde mole ratio (1:0.5), using HCl as a catalyst. FTIR and 1H-NMR analysis were employed to identify the novolac resin structure. The product was a brownish-orange solid with a yield of 12.80 mg (40%) and followed ortho-ortho substitution. Cardanol is one of the natural phenol sources that might be utilized to manufacture novolac resins.
Co-Authors Desi Suci Handayani Ema Nur Annisa Fajar Rakhman Wibowo Maulidan Firdaus Nisa Nur Hayati Sayekti Wahyuningsih Triana Kusumaningsih Venty Suryanti