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All Journal JURNAL KIMIA SAINS DAN APLIKASI
Pratama Jujur Wibawa
Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University Jl. Prof. Soedarto, SH., Tembalang, Semarang
Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering

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Improvement of Bioactivity with Nanoparticle Fabrication: Cytotoxic Test of Ethanol, N-Hexane and Ethyl Acetate Extract from Red Galangal Rhizome (Alpinia purpurata (Vieill.) K. Schum) in Bulk and Nanoparticle size using BSLT Method Enny Fachriyah; Dewi Kusrini; Pratama Jujur Wibawa
Jurnal Kimia Sains dan Aplikasi Vol 21, No 1 (2018): Volume 21 Issue 1 Year 2018
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (298.725 KB) | DOI: 10.14710/jksa.21.1.39-43

Abstract

Some of the secondary metabolites present in red algae are terpenoids, quinones, flavonoids, alkaloids, essential oils, diarylheptanoids, steroids, cardioglycosides, oils and fats, tannins, carbohydrates. Activity of rhizomes, leaves and flowers red leaf is as antimicrobial, anti-fungal, anti-oxidants, anti-tumor, anti-cancer and vasodilator. One way to improve the physical, chemical and bioactivity properties of natural compounds was to make them into nanoparticles. In this study, the isolation of bioactive compounds contained in red laos rhizome by maceration method using ethanol solvent was done, then partitioned with n-hexane and ethyl acetate. The extracts thus obtained are fabricated into nanoparticles. Extracts in bulk and nanoparticles were then tested for cytotoxic activity using BSLT method. Results of analysis with PSA showed that ethanol extract had size 410,8 nm, n-hexane extract 220,7 nm and ethyl acetate extract 208,3 nm. The results of cytotoxic tests showed that nanoparticle size increased cytotoxic activity. Ethyl acetate extract was most active compared to ethanol and n-hexane extracts with LC50values of 17.919; 84,956; 166,526 ppm. Whereas the nanoparticle size was respectively 10,491; 74,072 and 84,197 ppm. Cytotoxic activity increases with nanoparticle fabrication. 
Isolasi, Fabrikasi dan Penentuan Ukuran Nanopartikel Steroid (StrNPs) Ekstrak Lengkuas Merah (Alpinia purpurata K. Schum) dengan Metoda Dynamic Light Scattering Shelly Wiarsih; Dewi Kusrini; Pratama Jujur Wibawa
Jurnal Kimia Sains dan Aplikasi Vol 20, No 1 (2017): Volume 20 Issue 1 Year 2017
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (574.118 KB) | DOI: 10.14710/jksa.20.1.48-52

Abstract

Telah dilakukan penelitian mengenai steroid dari rimpang lengkuas merah (Alpinia purpurata K. Schum) dan pabrikasi nanopartikelnya. Tujuan dari penelitian ini adalah untuk memperoleh isolat steroid dari rimpang lengkuas merah (Alpinia purpurata K. Schum) dan memperoleh nanopartikel steroid dari hasil isolasi. Senyawa steroid diisolasi dari fraksi n-heksana dengan maserasi, ekstraksi, dan kromatografi kolom. Nanopartikel steroid difabrikasi dengan ultrasonikasi. Struktur molekul steroid diidentifikasi dengan gas chromatography-mass spectrometer (GC-MS). Ukuran nanopartikel steroid dikarakterisasi dengan metoda dynamic light scattering (DLS) menggunakan alat particle size analyzer (PSA). Hasil menunjukkan bahwa isolat steroid mengandung senyawa golongan progesteron. Ukuran rata-rata nanopartikel steroid secara statistik adalah 95,0 ± 12,2 nm untuk nanopartikel steroid (StrNPs) kelompok I dan 670,2 ± 141,1 nm untuk StrNPs kelompok II.
Triterpenoid dan Nanopartikel Ekstrak n-Heksana dari Rimpang Lengkuas Merah (Alpinia purpurata (Vieill.) K. Schum) Serta Uji Sitotoksisitas dengan BSLT Dian Nopitasari; Enny Fachriyah; Pratama Jujur Wibawa
Jurnal Kimia Sains dan Aplikasi Vol 20, No 3 (2017): Volume 20 Issue 3 Year 2017
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (466.296 KB) | DOI: 10.14710/jksa.20.3.117-122

Abstract

Penelitian ini bertujuan untuk mengisolasi senyawa triterpenoid dari rimpang Alpinia purpurata dan fabrikasi nanopartikel ekstrak n-heksana serta membandingkan aktivitas sitotoksik antara nanopartikel dan ekstrak n-heksana. Senyawa triterpenoid diisolasi dari ekstrak n-heksana menggunakan kromatografi kolom gravitasi dan KLT Preparatif. Metode yang digunakan untuk fabrikasi ekstrak n-heksana menjadi nanopartikel adalah sonikasi dengan menggunakan prosesor ultrasonik. Penentuan aktivitas sitotoksik ekstrak n-heksana menggunakan metode BSLT (Brine Shrimp Lethality Test). Hasil analisis GC-MS isolat triterpenoid memiliki berat molekul sebesar 426 g/mol diduga merupakan senyawa Lupeol. Berdasarkan analisis ukuran partikel menggunakan instrumen PSA, nanopartikel ekstrak n-heksana memiliki ukuran 278,0 nm. Hasil uji sitotoksisitas ekstrak n-heksana dan nanopartikel ekstrak n-heksana menghasilkan LC50 berturut-turut sebesar 109,668 ppm dan 86,783 ppm. Ekstrak n-heksana dalam bentuk nanopartikel dapat meningkatkan bioaktivitas.
Isolation of Alkaloid Compounds from Ethanol Extract of Rimpang Galang Merah (Alpinia purpurata (Vielli) K. Schum) and nanoparticle production from its Alkaloid Extract. Comparative Study of Antibacterial Properties on Staphylococcus aureus and Eschericia Vatara Artanta Silalahi; Enny Fachriyah; Pratama Jujur Wibawa
Jurnal Kimia Sains dan Aplikasi Vol 21, No 1 (2018): Volume 21 Issue 1 Year 2018
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (672.952 KB) | DOI: 10.14710/jksa.21.1.1-7

Abstract

Isolation of alkaloid compounds from ethanol extract of red galangal rhizomes to compare their antibacterial properties with extracts formed into nanoparticles has been performed. The isolation of the alkaloid compounds was performed successively by salting using (i) hydrochloric acid (HCl) to pH 3 (when in ethanol) and using (ii) ammonium hydroxide (NH4OH) to pH 10 (when in chloroform). The alkaloid concentrated extract was obtained after chloroform was evaporated using a rotary evaporator. This alkaloid extract was then carried out by TLC silica gel GF254 using chloroform eluent: ethyl acetate (9: 2) to obtain a specific alkaloid type as a single/pure compound. Test of alkaloid purity successfully isolated by one-dimensional or two-dimensional TLC using various types of eluents with varying degrees of polarity, ie acetone, chloroform, ethyl acetate, ethanol and chloroform: ethyl acetate mixture (9: 2). Isolates of pure alkaloids were analyzed using UV-Vis spectrophotometers), FTIR and (LC-MS). The obtained alkaloid isolates were isokuinolin group with UV-visible absorption characteristics at maximum wavelength (λmaks) of 212 nm, 227 nm and 261 nm. The alkaloid isolate also showed the presence of functional groups -OH, -C-H, C = O, C = C, C = N, C-N, and C-O with molecular weight of 262.90 g/mol. The production of ethanol extract nanoparticles containing alkaloid-containing red galangal (EEAlkNPs) was performed using a top-down approach using ultrason (40 kHz, 2x50 watt) for 10 minutes. The EEAlkNPs size was determined by the dynamic light scattering method (DLS) using the Particles size analyzer (PSA) tool and obtained an average particle size of 220.2 nm. The antibacterial properties of EEAlkNPs were tested by disc diffusion method for the culture of S.aureus and E.coli bacteria. It is known that the antibacterial properties of EEAlkNPs are relatively larger than the original ethanol extract at the same concentration, ie, 2000 parts per million (bpj) or g / L.
Co-Authors Dewi Kusrini Dian Nopitasari Enny Fachriyah Shelly Wiarsih Vatara Artanta Silalahi