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INDONESIA
Indonesian Journal of Fundamental and Applied Chemistry
Published by Universitas Sriwijaya
ISSN : 25409395     EISSN : 25409409     DOI : -
Core Subject : Science, Social,
Indonesian Journal of Fundamental and Applied Chemistry (IJFAC) is an international research journal and invites contributions of original research articles as well as review articles in several areas of chemistry. The journal aims to publish refereed, high-quality research papers with significant novelty and short communications in all branches of chemistry. Papers which describe novel theory and its application to practice are welcome, as are those which illustrate the transfer of techniques from other disciplines. IJFAC calls for papers that cover the following fields: Biochemistry Inorganic chemistry Physical chemistry Organic chemistry Analytical chemistry Applied Chemistry All papers are peer reviewed by at least two referees. Papers presented at conferences are peer reviewed and selected with the same standards as individually submitted papers. They therefore have the same archival value. Article should be submitted by the Online Submission Module at www.ijfac.unsri.ac.id or email to ijfac@unsri.ac.id
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Articles 75 Documents
Production of Biodiesel from Esterification of Oil Recovered from Palm Oil Mill Effluent (POME) Sludge using Tungstated-Zirconia Composite Catalyst Hasanudin, Hasanudin; Rachmat, Addy
Indonesian Journal of Fundamental and Applied Chemistry Vol 1, No 2 (2016): June 2016
Publisher : Indonesian Journal of Fundamental and Applied Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v1.i2.42

Abstract

Solid acid catalyst prepared from tungsten and zirconium oxide composite had been characterized and evaluated on biodiesel production by esterification of low quality oils taken from POME sludge. Catalyst characterization was conducted using Scanning Electron Microscopy (SEM) and acidity test. Acidity test of catalyst resulted using Gravimetry method is 5.4 mole/g. Esterification to produce biodiesel using tungsten and zirconium oxide composite show increasing amount of catalyst used will also increased conversion percentage of biodiesel produced and reach optimum value at 10%. Catalyst:oil ratio used to produce optimum conversion is 8:1 which converted 74.88% oil to biodiesel.Keywords: Tungsten-Zirconia composite, POME Sludge, EsterificationAbstrak (Indonesian). Penelitian tentang preparasi dan karakterisasi katalis komposit tungsten dan zirkonium oksida serta aplikasinya untuk esterifikasi minyak hasil recovery limbah sludge industri kelapa sawit telah dilakukan. Karakterisasi katalis dilakukan dengan menggunakan SEM dan uji sifat keasaman. Sifat keasaman katalis didapat sebesar 5,4 mol/g dengan metode gravimetri. Hasil pembuatan biodiesel dengan menggunakan katalis komposit tungsten dan zirkonium oksida didapatkan bahwa semakin besar jumlah katalis yang digunakan semakin besar pula % konversi biodiesel yang dihasilkan dan optimum pada 10%. Sementara perbandingan jumlah metanol:minyak didapatkan nilai optimum pada perbandingan 8:1 dengan % konversi biodiesel sebesar 74,88%.Kata Kunci: Tungsten-Zirconia composite, POME Sludge, Esterifikasi  
Isolation of Triterpenoid from Katemas (Euphorbia geniculata Ortega) Stem Extracted using Methanol and Its Toxicity Test Eliza, Eliza; Fatsiami, Ricce; Yusuf, Setiawati; Ferlinahayati, Ferlinahayati
Indonesian Journal of Fundamental and Applied Chemistry Vol 1, No 1 (2016): February 2016
Publisher : Indonesian Journal of Fundamental and Applied Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v1.i1.19

Abstract

Katemas (Euphorbia geniculata Ortega) known as (Mexican) Fireplants, Painted Euphorbia, Japanese poinsettia is a plant belong to Euphorbiaceae or spurge family. Traditionally, this plant is used as furgative and treat dysentry. The aims of the research were to evaluate the toxicity and to isolate one of the triterpenoid extracted using methanol from the stem of this plant. The toxicity was evaluated by mortality test against armyworm larvae (Spodoptera litura). This assay was obtained by Methanol extraction at various concentrations (0, 1, 2, 3, 4 and 5%). The isolation process was conducted by series of work steps such as extraction, fractionation and purification. Structure elucidation was determined by spectroscopy techniques. Toxicity assay exhibited highest mortality at 5 % concentration with LC50 3,92%. Spectroscopy data analysis was able to identified a type of pentacyclic triterpenoid compound namely lupeol acetate.Keyword: Euphorbia geniculata Ortega, toxicity, lupeol acetate
Fatty Acid and Alkenil Glycoside from the Fruits of Mengkudu (Morinda citrifolia Linn) Ferlinahayati, Ferlinahayati; Apriyaty, Rizdha; Eliza, Eliza
Indonesian Journal of Fundamental and Applied Chemistry Vol 1, No 2 (2016): June 2016
Publisher : Indonesian Journal of Fundamental and Applied Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v1.i2.52

Abstract

Two compounds were isolated from methanol extract of mengkudu fruit (Morinda.citrifolia Linn). The extraction was conducted by maceration, while separation and purification using several chromatographic techniques. The compound structures were determined by spectral data including IR, 1H-NMR and GC-MS. Compound 1 was a mixture of 7 fatty acids with hexadecanoic acid as a primarily, meanwhile compound 2 was a mixture of an alkenyl glycoside with an aromatic.Keywords: Morinda citrifolia, asam lemak, alkenil glikosida(Indonesian) Dua senyawa telah diisolasi dari ekstrak metanol buah mengkudu (Morinda citrifolia Linn). Ekstraksi dilakukan dengan cara maserasi yang dilanjutkan dengan pemisahan dan pemurnian dengan menggunakan berbagai teknik kromatografi. Struktur senyawa ditentukan berdasarkan data-data spektroskopi yaitu IR, 1H-NMR dan GC-MS. Senyawa 1 merupakan campuran dari tujuh asam lemak dengan kandungan utama asam heksadekanoat sedangkan senyawa 2 merupakan campuran alkenil glikosida dengan senyawa aromatik.Kata kunci: Morinda citrifolia, asam lemak, alkenil glikosida
Photodegradation of Permethrin using Photocatalyst Montmorillonite-TiO2 Rachmat, Addy; Said, Muhammad; Fatma, Fatma; Badarwi, Hardi Aji; Ramadhan, A.M.
Indonesian Journal of Fundamental and Applied Chemistry Vol 1, No 1 (2016): February 2016
Publisher : Indonesian Journal of Fundamental and Applied Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v1.i1.01

Abstract

            Photocatalyst Montmorillonite-TiO2 was synthesized using template CTAB and natural clay for degradation of Permethrin. The porosity and crystalline phase of catalyst were evaluated using N2 sorption analyzer and XRD diffraction. Permethrin photodegradation was optimized by varying reactant volume, irradiation time and initial concentration. Montmorillonite enhanced by CTAB showed typical porosity i.e. specific surface area, pore radii and pore volume for layer material. It properties decreased as this host material was impregnated with TiO2. XRD diagram indicated that space between layers of Montmorillonite expanded up to 4.7 Å. The diffractogram also confirmed that TiO2 formed an Anatase phase instead of Rutile. Photodegradation conducted at several condition showed relatively low photocatalytic activity. The highest photodegradation was achieved at 50 mL of Permethrin with initial concentration 10 ppm and 100 minutes’ irradiation. Keywords: Permethrin, Photodegradation, Montmorillonite-TiO2
The Effect of Lactobacillus acidophilus and Chito−Oligosaccharide on Antibacterial Activity and Organic Acid Production Miksusanti, Miksusanti; Saputra, Harian; Sandi, Sofia; Hermansyah, Hermansyah
Indonesian Journal of Fundamental and Applied Chemistry Vol 1, No 2 (2016): June 2016
Publisher : Indonesian Journal of Fundamental and Applied Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v1.i2.29

Abstract

The effect of Lactobacillus acidophilus combined with and without Chito-Oligosaccharide (COS) on the growth of Escherichia coli and Staphylococcus aureus had been studied. The antibacterial activity of L. acidophilus before and after combination with COS 0.2% was tested on bacteria of E. coli and S. aureus with well-diffusion method. Incubation time was carried out in 44, 46, 48, 50, and 52 hours. Organic acids produced by L. acidophilus bacteria was measured by HPLC. The result showed that COS 0.2% can inhibit the growth of E. coli and S. aureus 37.2 mm2 and 52 mm2 respectively. Combination of L. acidophilus and COS 0.2% gave inhibition zone larger than L. acidophilus without COS 0.2%. Incubation time within 48 hours of L. acidophilus combined with COS 0.2% produced the largest inhibition zone against E. coli and S. aureus 367.92 mm2 and 343.99 mm2 respectively. Optical density measurement resulted in higher value for combination one but concentration of organic acid produced was lower compare to L. acidophilus without COS 0.2%.Keywords: COS, L. acidophilus, Organic acid, antibacterial.
Study on Quality of Water from Various Resources of Tidal Zonetaken on Dry Season at Muliasari Village Tanjung Lago District Hamida, Indah; Susanto, Robiyanto Hendro; Hariani, PoedjiLoekitowati
Indonesian Journal of Fundamental and Applied Chemistry Vol 2, No 2 (2017): June 2017
Publisher : Indonesian Journal of Fundamental and Applied Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v2.i2.39

Abstract

Contamination by organic matters, nutrient, pathogenic bacteria, micro pollutant and detergent/surfactant caused quality decrease of water in tidal zone. This study was aimed to evaluate quality of various water resources and to elaborate correlation between tidal environment condition and water resources quality at Muliasari village district of Tanjung Lago. Water sample was taken by purposive sampling method. Analysis result using Storet method showed average value of several parameters at high tide are: temperature 31.37°C;TSS 74.28 mg/L;pH 3.38; salinity 1.82; DO 5.05 mg/L; BOD 32.51 mg/L; COD 98.5 mg/L; ammonia 0.29 mg/L; phosphate 0.1690 mg/L; Fe 0.272 mg/L and Coliform 0.31/100 mg/L. At low tide these parameters had values for temperature 27.13°C; TSS 67.14 mg/L; pH 3.38; salinity 1.7; DO 4.86 mg/L; BOD 14.13 mg/L; COD 43.71; ammonia 0.244 mg/L; phosphate 0.1695 mg/L; Fe 0.232 mg/L and Coliform 0.32/100 mg/L. According to Governor’s provision no.16/2005 on water quality standard, water from various resources of Muliasari village were moderately polluted. Domestic waste water management is needed at this area followed by training and enhance occupant’s awareness to maintain hygiene and environment quality. Monitoring effort is also necessary on water resources quality for at least once every 6 months. Key words: Water quality, tidal zone, domestic waste
Removal of COD and TSS From Dye Solution Using Sand Filtration and Adsorption Juniar, Heny; Said, Muhammad; Haryati, Sri; Faizal, Muhammad
Indonesian Journal of Fundamental and Applied Chemistry Vol 1, No 3 (2016): October 2016
Publisher : Indonesian Journal of Fundamental and Applied Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v1.i3.67

Abstract

Abstract: This research was conducted in order to obtain proper compositions and the standard condition for the simple filtration equipments and optimum operational conditions in adsorption column. The research was carried out by analyzing parameters COD and TSS. The result showed that the process was able to reduced parameters observed from filtration step until the process in adsorptions column. The optimum conditions for sand filter equipment were 10 cm sand height, at least 7 cm fibers, 3-4 cm gravel. In the adsorption column, the optimum conditions for green waste water were flow rate at 40 ml/min 60 min adsorptions time, and 60 cm bed height. While purple for waste water; 20 mL/min of flowrate, 60 min of adsorption time, and the 60 cm of bed heightKey words: dye solution, COD, TSS, sand filtration, adsorption column Abstrak (Indonesian): Penelitian mengenai pengolahan limbah cair hasil pencelupan benang songket dengan metode filtrasi dan adsorpsi telah dilaksanakan. Penelitian bertujuan untuk mendapatkan komposisi dan ukuran yang tepat bagi alat penyaring sederhana dan mendapatkan kondisi operasi yang tepat bagi kolom adsorpsi.  Parameter pengamatan adalah kadar COD dan TSS.  Hasil penelitian menunjukkan bahwa telah terjadi penurunan kadar limbah sejak tahap penyaringan hingga proses di kolom adsorpsi.  Kondisi optimum alat penyaring sederhana adalah ketebalan pasir 10 cm, ijuk minimal 7 cm, kerikil 3-4 cm dan penambahan tawas sebanyak 2g/L limbah.  Pada kolom adsorpsi kondisi optimum adalah kecepatan alir 40 mL/menit, waktu tinggal di kolom 60 menit dan ketinggian unggun batubara 60 cm.Kata kunci: limbah cair pencelupan, bahan-bahan berbahaya, filtrasi pasir, kolom adsorpsi
Strategy for technology energy selection to achieve coal value added in PT. Bukit Asam (Persero), Tbk., Rostiarti, Peni; Ibrahim, Eddy; Toha, Taufik
Indonesian Journal of Fundamental and Applied Chemistry Vol 2, No 3 (2017): October 2017
Publisher : Indonesian Journal of Fundamental and Applied Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v2.i3.66

Abstract

The role of coal in providing national energy has already increased nowadays, and still taking an important subject. Government obligation to support added value is not really encourage industry player to applied technology energy that has been developed widenly in South Africa, China and others developing country. The scope of this research is technology energy for coal diversification, such as Coal Upgrading, Coal Gasification, Coal Liquefaction, Coal Water Mixture, and applied Coal Bed Methane Technology that extract gas methane from the pore of coal. The purpose of this research is to estimate coal resources, quality range and to select technology energy that can be potentially develop in PT. Bukit Asam (Persero), Tbk. Coal Resources and coal quality in each mining licences area becomes the basic strength for developing technology energy as part of SWOT Analysis. Based on the SWOT Analysis from 5 technology energy then the scope limited into 3 highest technology energy that is Coal Gasification, Coal Liquefaction and Coal Bed Methane as the most potential technology energy to develop in PT. Bukit Asam (Persero), Tbk. 
Application of Electrocoagulation Process for Continuous Coal Stockpile Wastewater Treatment System Rusdianasari, Rusdianasari
Indonesian Journal of Fundamental and Applied Chemistry Vol 2, No 1 (2017): February 2017
Publisher : Indonesian Journal of Fundamental and Applied Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v2.i1.10

Abstract

Coal wastewater is characterized by high total suspended solid (TSS), heavy metals, and low acidity (pH). The purpose of this study was to research the effects of the operating parameters such as applied voltage, the number of electrodes, and reaction time on a real coal stockpile wastewater in the continuous electrocoagulation process. For this purpose, aluminum electrodes were used in the presence of potassium chloride as an electrolyte. It has been shown that the removal efficiency of TSS and heavy metals content increased with increasing the applied voltage and reaction time. The results indicate that the electrocoagulation process is efficient and able to achieve 88.67% TSS removal, 95.65% ferrous removal, 99.11% manganesse removal, and pH increased until 7.1 at 24 volts during 120 min, respectively. The experiments demonstrated the effectiveness of electrocoagulation methods for the treatment of coal stockpile wastewater.Key words: coal stockpile wastewater, electrocoagulation, electrode
Characterization of Activated Carbon from Coal and Its Application as Adsorbent on Mine Acid Water Treatment Hardianti, Siti; Rachman, Susila Arita; E.H., Harminuke
Indonesian Journal of Fundamental and Applied Chemistry Vol 2, No 2 (2017): June 2017
Publisher : Indonesian Journal of Fundamental and Applied Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v2.i2.34

Abstract

Anthracite and Sub-bituminous as activated carbon raw material had been utilized especially in mining field as adsorbent of dangerous heavy metal compound resulted in mining activity. Carbon from coal was activated physically and chemically in various temperature and particle sizes. Characterization was carried out in order to determine the adsorbent specification produced hence can be used and applied accordingly. Proximate and ultimate analysis concluded anthracite has fixed carbon 88.91% while sub-bituminous 49.05%. NaOH was used in chemical activation while heated at 400-500°C whereas physical activation was conducted at 800-1000°C. Activated carbon has high activity in adsorbing indicated by high iodine number resulted from analysis. SEM-EDS result confirmed that activated carbon made from coal has the quality in accordance to SNI and can be used as adsorbent in acid water treatment.