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All Journal Alchemy Jurnal Penelitian Kimia Indonesian Journal of Chemistry Molekul: Jurnal Ilmiah Kimia
Soerya Dewi Marliyana
Department of Chemistry, Faculty of Mathematic and Natural Sciences, Sebelas Maret University Jl. Ir. Sutami 36A, Surakarta, Central Java 57126
Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Environmental Science Materials Science & Nanotechnology

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AMENTOFLAVONE FROM LEAVES OF NYAMPLUNG (Calophyllum inophyllum Linn.) Wartono, M. Widyo; Wulandari, Dian; Handayani, Nestri; Suryanti, Venty; Marliyana, Soerya D.
Alchemy Jurnal Penelitian Kimia Vol 8, No 1 (2012)
Publisher : Alchemy Jurnal Penelitian Kimia

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Abstract

Amentoflavone (1), a biflavonoid was isolated from leaves of Calophyllum inophyllum Linn. Isolation and purification of the compound used maceration and chromatography methods using Si-gell and sephadex LH-20. The structure was determined by UV, IR, 1H and 13C NMR spectroscopy includes HMQC/HMBC analysis and comparison with references.
AMENTOFLAVON DARI DAUN NYAMPLUNG (Calophyllum inophyllum Linn.) Wartono, M. Widyo; Wulandari, Dian; Handayani, Nestri; Suryanti, Venty; Marliyana, Soerya D.
Alchemy Jurnal Penelitian Kimia Vol 8, No 2 (2012)
Publisher : Alchemy Jurnal Penelitian Kimia

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Satu senyawa biflavonoid yaitu amentoflavon (1) berhasil diisolasi dari daun tumbuhan nyamplung (Calophyllum inophyllum Linn). Ekstraksi menggunakan metode maserasi dan pemurnian dengan kromatografi kolom dengan fasa diam Si-gel dan sephadex LH-20. Elusidasi struktur menggunakan metode spektroskopi UV, IR, 1H dan 13 C NMR beserta HMQC dan HMBC. Hasil yang diperoleh dianalisis dan dibandingkan dengan data referensi.Kata kunci: Amentoflavon, biflavonoid, Calophyllum inophyllum, Daun
CYTOTOXICITY EXTRACT OF RED FRUIT (Pandanus Conoideus Lamk.) WITH BRINE SHRIMP LETHALITY TEST Marliyana, Soerya D.; W, Fajar Rakhman; H, Nestri; Rakhmawati, Rita
Alchemy Jurnal Penelitian Kimia Vol 8, No 1 (2012)
Publisher : Alchemy Jurnal Penelitian Kimia

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The cytotoxicity with Brine Shrimp Lethality Test (BSLT) extract of red fruit (Pandanus conoideus Lamk.) have been done. The ethanol and n-hexana extracts were evaluated for cytotoxicities. The n-hexane extract demonstrated higher cytotoxic activity than the ethanol extract, with 54% death in concentration 400 ?g/mL. The n-hexane extract was separated by column chromatography, eluting with a gradient of n-hexane-EtOAc to had an active fraction. The cytotoxicity of an active fraction showed with LC50 values of 138,05 µg/mL. Identification of this fraction exhibited three compounds of fatty acid were palmitic acid, oleic acid, and miristic acid
UJI TOKSISITAS SECARA BRINE SHRIMP LETHALITY EKSTRAK BUAH MERAH (Pandanus Conoideus Lamk.) Marliyana, Soerya D.; Rakhman W, Fajar; Handayani, Nestri; Rakhmawati, Rita
Alchemy Jurnal Penelitian Kimia Vol 8, No 2 (2012)
Publisher : Alchemy Jurnal Penelitian Kimia

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Telah dilakukan uji toksisitas secara Brine Shrimp Lethality Test (BSLT) ekstrak buah merah (Pandanus Conoideus Lamk.). Uji toksisitas dilakukan pada ekstrak etanol dan n-heksana. Hasil uji BSLT menunjukkan rata-rata prosentase kematian ekstrak n-heksan lebih tinggi dibandingkan dengan ekstrak etanol, sebesar 54 % diukur pada konsentrasi 400 (μg/mL). Ekstrak n-heksan selanjutnya dilakukan pemisahan secara kromatografi kolom dengan elusi secara gradien menggunakan pelarut campuran n-heksana-etil asetat untuk memperoleh fraksi aktif. Uji toksisitas secara BSLT menunjukkan fraksi aktif mempunyai nilai LC50 sebesar 138,05 μg/mL. Identifikasi fraksi aktif diperoleh 3 komponen senyawa asam lemak yaitu asam palmitat, asam oleat dan asam miristat.Kata Kunci : Buah merah (Pandanus conoideus Lamk.), identifikasi, toksisitas, Brine Shrimp LethalityABSTRACT
SINTESIS MATERIAL MESOPORE HIBRID DARI 3-KLOROS SOLLTRIMETOKSISILAN DAN THIOUREA MELALUI PROSES SOL GEL DI BAWAH KONDISI KATALIS BASA Wahyuningsih, Sayekti; Rahardjo, Sentot Budi; Marliyana, Soerya Dewi; Finnah, Raen
Alchemy Jurnal Penelitian Kimia Vol 2, No 2 (2003)
Publisher : Alchemy Jurnal Penelitian Kimia

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Telah dilakukan sintesis material porous hibrid MPH dari 3-kloropropiltrimetoksisilan dengan tiourea. Sintesis dilakukan dengan proses sol gel menggunakan katalis basa NaOH pada pelarut methanol : air sama dengan 4 : 1.Sintesis menghasilkan material porous hibrid  MPH. spectrum elektronik gel material, yang diukur selama 2 bulan dari awal terbentuknya material, menunjukkan proses polimerisasi dan pembentukan struktur porous yang berjalan relatif lambat. Spektrum elektronik memiliki puncak-puncak yang semua berada pada daerah UV antara 250 -280 nm. Material MPH bersifat rigid pada temperatur kamar. Transisi gelas yang merupakan titik perubahan material rigid menjadi elastomer ditunjukkan dari kurva DTA eksotermis pada 265,47oC. karakterisasi menggunakan spectra IR menunjukkan terikatnya tiourea pada MPH yang ditunjukkan oleh berubahnya serapan NH primer dari thiourea menjadi NH sekunder pada 3421 cm-1 dan NH deformasi pada 1647 cm-1. Proses polimerisasi menyebabkan pergeseran serapan-serapan gugus Si-O-C dari 1191 cm-1 dan 1089 cm-1 menjadi tampak serapan Si-O-Si pada 1250 cm-1 dan serapan ulur Si-O-C pada 1031 cm-1. Material MPH bersifat non kristalin dengan harga  dspasing 135,80 Å
Bioactive Compound Contents and Antioxidant Activity of of Fermented Lead Tree (Leucaena leucocephala (lmk.) de Wit) Seeds Suryanti, Venty; Marliyana, Soerya Dewi; Rohana, Gracia Lasma; Trisnawati, Elyna Wahyu; Widiyanti, Widiyanti
Molekul Vol 16, No 3 (2021)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (299.768 KB) | DOI: 10.20884/1.jm.2021.16.3.756

Abstract

Leucaena leucocephala (lmk.) de Wit) (leed tree) seeds have been fermented by Indonesian as a traditional food which is called tempeh. The fermentation products of legume seeds are good functional foods, since they contain many bioactive compounds. The objective of this study was to determine the bioactive compound contents of fermented lead tree seed, such as total phenolic, ascorbic acid, β-carotene and a-tocopherol. Antioxidant activity testing was carried out using the thiobarbituric acid reactive substances (TBARS) method. Analysis of total phenolics, ascorbic acid, β-carotene and a-tocopherol were carried out using the folin-ciocalteu method, iodine titration, spectrophotometry and iron (III) chloride-thiocyanate, respectively. Rhizopus oligosporus was used to ferment lead tree seeds for 0, 1, 2, 3 and 4 days. Fermented leed tree seed powder was extracted with petroleum ether followed by ethanol. In comparison to unfermented leed tree seed powder, the β-carotene and a-tocopherol of the fermented seed powder increased. The greatest enhancement of β-carotene and a-tocopherol contents were observed at day 2 of fermentation. The highest antioxidant activities of fermented leed tree seeds were also obained at day 2 of fermentation with 55.55±4.59 and 74.46±3.49% inhibition in petroleum ether and ethanol extracts, respectively. The results show that lead tree seed tempeh has high antioxidant activity due to the bioactive compounds contains, such as  phenolics, β-carotene and a-tocopherol. Therefore, leed tree seed tempeh could be used for possible commercial production of functional food to alleviate oxidative stress.
PRODUCTION AND CHARACTERIZATION OF BIOSURFACTANT BY Pseudomonas fluorescens USING CASSAVA FLOUR WASTEWATER AS MEDIA Venty Suryanti; Soerya Dewi Marliyana; Desi Suci Handayani; Desi Ratnaningrum
Indonesian Journal of Chemistry Vol 13, No 3 (2013)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (270.475 KB) | DOI: 10.22146/ijc.21281

Abstract

Biosurfactant with efficient emulsification properties could be produced by Pseudomonas flourescens using cassava flour wastewater (manipueira) as media. The ability of P. flourescens to produce biosurfactant could suggest potential use in industrial and environmental applications. Media containing a mixture of natural manipueira and nutrient broth with 48 h fermentation was the optimum condition for the biosurfactant production. Based on UV-Vis and FT-IR spectra, the biosurfactant was indicated as rhamnolipids containing hydroxyl, ester, carboxylic and aliphatic carbon chain functional groups. Biosurfactant exhibited critical micelle concentration (CMC) value of 715 mg/L and reduced the surface tension of the water from 80 mN/m to 59 mN/m. The biosurfactant was able to decrease the interfacial tension about 51-70% when benzyl chloride, palm oil and kerosene were used as water-immiscible compounds. The biosurfactant was able to form stable emulsion until 30 days when paraffin, soybean oil, lubricant oil and kerosene were used as water-immiscible compounds.
Co-Authors Desi Ratnaningrum Desi Suci Handayani Dian Wulandari Fajar Rakhman W, Fajar Fajar Rakhman W, Fajar Rakhman M. Widyo Wartono, M. Widyo Nestri H, Nestri Nestri Handayani, Nestri Raen Finnah, Raen Rita Rakhmawati, Rita Rohana, Gracia Lasma Sayekti Wahyuningsih Sentot Budi Rahardjo Trisnawati, Elyna Wahyu Venty Suryanti Venty Suryanti Widiyanti Widiyanti, Widiyanti