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INDONESIA
Jurnal Kimia Terapan Indonesia
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : 08532788     EISSN : 25277669     DOI : -
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Materials Science & Nanotechnology
Arjuna Subject : -
Articles 7 Documents
 1 
Search results for , issue "Vol 14, No 1 (2012)" : 7 Documents clear
SANTON DARI KULIT BATANG TUMBUHAN ASAM KANDIS (Garcinitz cowa) Darwati Darwati; Anni Aoggraeoi"; Sri AdisumiwiZ
Jurnal Kimia Terapan Indonesia Vol 14, No 1 (2012)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3145.764 KB) | DOI: 10.14203/jkti.v14i1.115

Abstract

The genus Garcinia is known to be a rich source of oxygenated xanthone, prenylated xanthone, and polyisoprenylated benzophenones. Some of them exhibiting various biological activities such as antimycrobachterial,antioxidant, cytotoxic, and antimalaria activities. Garcinia cowa belonging to the Guttiferaefamily, in Indonesia this plant is locally named asamkandis In our continuing phytochemical investigation of Garcinia plants is found in Indonesia a xanthone cowanine compound has been isolated from the steam bark of Garctnia cowa. The structure of this compound has been determined base on spectroscopic data including uv, lR,J-D NMR, and these are comparedwith the literaturedata.Keywords: Garcinia cowa, xanthone, cowanine
POTENTIAL OF COGON GRASS AS AN OIL SORBENT Edi Iswanto Wiloso; Vera Barlianti; Irni Fitria Anggraini; Hendris Hendarsyah
Jurnal Kimia Terapan Indonesia Vol 14, No 1 (2012)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jkti.v14i1.121

Abstract

Experiments on the potential of Cogon grass (lmperata cylindrica), a weed harmful to other plants, for use as a low-cost and biodegradable oil sorbent were carried out under various spill conditions. Flowers of Cogon grass adsorbed much larger amount of high-viscosity lubricating oil (57.9 g-oil/g-sorbent) than that adsorbed by Peat Sorb (7.7 g-oil/g-sorbent), a commercial oilsorbent based on peat. However, the flowers adsorbed only 27.9 g of low-viscosity crude oillgsorbent. In an oil-water system, the mount of oil adsorbed was influenced by the level with which the two were mixed: vigorous stirring reduced the sorption capacity by 36%. The high sorptive capacity of the flowers can be attributed to their hydrophobic nature and good oil-wettability. The flowers showed good buoyancy even after 24 hours of shaking under conditions that simulated water ripple (gentle wary motion) in sea, which suggests their potential in combating oil spills both on land and in water.Keywords: Sorbent; Oil spill,' Oil sorption; Cogon grass;Imperata cylindrica
Aktivitas Anti Jamur 2,3-dihidroksipentadekanoat dari Kayu Mahalilis (Palaquium sp.) Renhart Jemi; Wasrin Syafi; Fauzi Ferbianto'; Muhammad Hanafi
Jurnal Kimia Terapan Indonesia Vol 14, No 1 (2012)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4120.764 KB) | DOI: 10.14203/jkti.v14i1.117

Abstract

The objectives of this research were to evaluate the extractive content of hartdwood of mahalilis wood (palaquium sp.) and identification of bio-acttve compounds wood decay fungi. Mahalilis wood was macerated with MeOH and then partitioned in stages wiht the n-hexane, CHCI31 EtOAc and n-BuOH, respectively. The result of antifungal test, show the most active 14 fraction CHCl3 comparedfraction and negative controls (CCB and itraconazole). Purification of CHCl3 fraction was column chromatographedproduced five fraction (M-I-M-5). TheM2 active fraction shown inhibited the growth to Schizophyllum communeFries withIC(so) is 56ppm and Pleurotus ostreatus with IC(so)= 55 ppm. The M2 fraction of dark brownish yellow color oil, was identified by LC-MS and IH NMR, as 2,3-dihydroxypropylpentadecanoate.Key words: Palaquium sp., antifungal, Schizophyllumcommune Fries, Pleurotus ostreatus, 2,3-dihydroxypropylpentadecanote.
MOLECULAR DOCKING TURUNAN KALKON TERHADAP RESEPTOR ESTROGEN B (ER- B) SEBAGAI ANTIKANKER PAYUDARA Dwi Koko Pratoko
Jurnal Kimia Terapan Indonesia Vol 14, No 1 (2012)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4006.125 KB) | DOI: 10.14203/jkti.v14i1.118

Abstract

Estrogen receptor-S (ER- ft) was also shown to be the important factor to inhibits proliferation and invasion of breast cancer cells. Estrogen receptor-S complexed with genistein is taken as a role model to target the drug action. Docking molecule chalcone derivatives on Estrogen receptor-S have been done to test the docking energy that associated with binding affinity between ligand and receptor. Based on docking result, Kalkon XII has shown best docking energy (MoIDockScore). Thus Kalkon XII can be synthesized and usedfor in vitro cytotoxic activity.
SINTESIS DAN KARAKTERISASI PERAK NANOPARTIKELBAKTERIAL SELULOSA BIONANOFIBER NANOKOMPOSIT Muhamad Nasir; Chandra Risdian; Lilis Syarifuddin
Jurnal Kimia Terapan Indonesia Vol 14, No 1 (2012)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3343.416 KB) | DOI: 10.14203/jkti.v14i1.119

Abstract

Silver nanoparticle-bacterial cellulose bionanofiber nanocomposite (nano Ag-BSB) has been synthesized by using trisodium nitrate as reducing agent. The arrangement offiber in nano Ag-BSB nanocomposite has random shape after 26 confirmed by scanning electron microscopy (SEM)analysis. Nano Ag-BSB nanocomposite has average 64.1 nm in nanofiber diameter. Fourier infra red spectroscopy and X-ray diffraction analysis showed crystal structure in Ag-BSB nanocomposite is cellulose type L Crystalinity of BSB and Ag-BSB are 94 % and 89 %, respectively.This result showed that presence of silver nanoparticles in BSB decreased crystalinity of BSB. Ag-BSB nanocomposite has good performance in inhibitingE-Coli growth.Keywords: Silver nanoparticle; nanocomposite, bacterial cellulose bionanofibet; silver nanoparticlebacterial cellulose bionanofiber nanocomposit
OPTIMASI DAN VALIDASI METODA PENGUJIAN WEDELOLAKTON SECARA KROMATOGRAFI CAIR KINERJA TINGGI DENGAN TEKNIK DETEKSI FLUORESENSI (KCKT - F) Iiisna Yuliana; Yosi Aristiawan; Iwan Bastiawanz; Julia J. Kantasubrata; Muljadji Agma
Jurnal Kimia Terapan Indonesia Vol 14, No 1 (2012)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4921.752 KB) | DOI: 10.14203/jkti.v14i1.114

Abstract

Wedelolakton has a wide range of biologicalactivities and used for the treatment of variousailments. In the present study an experiment ofquantitative determination of wedelolactone inherbal extract of Eclipta alba L. Hask has beendeveloped by using RP - HPLC - Fluorimetrytechnique and mixture methanol:0.35% acetic acid(H20) (50:50 vlv) as mobile phase, applied to theherbal extract as inhouse reference materialcandidate samples. The method was validated forthe confirmation of identity (selectivity), linearity,precision, recovery, sensitifity, limit of detectionJKTI, Vol. 14, No.1, Juni 2012and limit of quantitation. Statistical analysis of thedata showed that the method is reproducible andselective for the estimation of wedelolactonedetermination.Keywords: Wedelolactone, HPLC-F, method optimization,method validation, confidence limi
UJI PENDAHULUAN PEMANFAATAN GAS KARBONDIOKSIDA UNTUK SIMULASI PENGOLAHAN LIMBAH CAIR YANG MENGANDUNG LOGAM BERAT TIMAH mTAM Ardeniswan Ardeniswan
Jurnal Kimia Terapan Indonesia Vol 14, No 1 (2012)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5795.861 KB) | DOI: 10.14203/jkti.v14i1.120

Abstract

Wastewater used in this experiment is an artificial wastewater containing lead. First, lead was precipitated with 0.1 M NaOH at pH 9 as hydroxide compound [Pb(OH)J. After Pb(OH)2 precipitated, CO2gas with a concentration of 16% isflowed as much as 120 mL with aflow rate of 120mLimin, where the lead remaining will settle to form lead carbonate (PbCOJ. A part of the precipitate was directly leached without any process of stabilization/ solidification and another part was leached after stabilization/solidification using Portland cement. Subsequent of precipitation that above were added of extraction solution with pH is 2.85 ± 0.05 in the ratio 1: 20. Leaching or TCLP test (Toxicity Characteristic leachate procedure) was conducted using a Rotary Agitator with a rotation speed of 30±2 rpmfor 18±2 hours. The TCLP test results showed that each compound PbC03 and Pb(OH)2 by weighing 1.5g without any solidification process were 91.34 ± 8.74 mg/L and 45.6 :I:0.14 mg/L respectively. These values were exceeds the required quality standardfor TCLP. While the compounds of PbC03 and Pb(OH)2 respectively with a weight of 1.5 g were carried out the stabilization / solidification withPortland cement in the ratio of 1:1:1 (cement: sand: solid waste), apparently both of lead ions fromPbC03 andPb(OH)2 were not leached.Keyword : Carbon dioxide, wastewater, Pb+1, stabilisationlsolidification, TCLP Test

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