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All Journal EKSAKTA: Journal of Sciences and Data Analysis SMARTek Foristek CHEMISTRY PROGRESS IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Jurnal Dinamika Pengabdian (JDP) Jurnal Penelitian Pendidikan IPA (JPPIPA) Indonesian Journal of Chemistry Chemistry Indonesian Journal of Chemical Research Jurnal Gema Ngabdi ARIKA Molluca Journal of Chemistry Education (MJoCE) BIOEDUPAT: Pattimura Journal of Biology and Learning Jurnal Ilmiah Berkala: Sains dan Terapan Kimia Makara Journal of Science Molekul: Jurnal Ilmiah Kimia BAKIRA: Jurnal Pengabdian Kepada Masyarakat Innovation for Community Service Journal Jurnal Abdimas Multidisiplin Jurnal Analis Kesehatan Kendari
I Wayan Sutapa
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, Pattimura University, Jl. Ir. M. Putuhena Kampus - Poka, Ambon, Maluku 97234
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Social Sciences Other

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STUDI POTENSI PENGEMBANGAN SUMBER DAYA AIR DI KOTA AMPANA SULAWESI TENGAH Sutapa, I Wayan
SMARTek Vol 7, No 1 (2009)
Publisher : SMARTek

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (394.927 KB)

Abstract

Tujuan studi ini adalah untuk mengetahui potensi sumber air untuk memenuhi kebutuhan airminum di Kota Ampana dan memilih alternatif sumber air yang paling optimal dari potensisumber daya air yang ada. Metode yang digunakan berupa survey pendahuluan untukmengetahui kondisi sungai-sungai yang ada, vegetasi penutup lahan dan kondisi sosial ekonomipenduduk Kota Ampana. Survey ini dilakukan dengan mengukur debit sungai, pendataanpenggunaan lahan, data jumlah penduduk dan mendata sarana dan prasarana yang ada.Data kependudukan didapat dari Kantor Badan Pusat Statistik (BPS) di Palu. Data hujan &klimatologi digunakan Stasiun Hek Bunta yang didapat dari Kantor Balai Wilayah Sungai SulawesiIII di Palu. Pengolahan data dilakukan dengan menggunakan rumus-rumus empiris dari kajianpustaka, yakni: menghitung evapotrasnpirasi dengan Metode Penman Modifikasi ; menghitungdebit andalan dengan Metode FJ Mock, Smec dan pengukuran langsung; menghitungkebutuhan air, proyeksi sampai tahun 2027 dan menghitung neraca air dari alternatif sumber air.Hasil analisis kebutuhan dan ketersediaan air (neraca air) menunjukkan bahwa jika air SungaiAmpana dan Sungai Sansarino saja digunakan untuk keperluan air minum, maka sampai proyeksitahun 2027 belum mampu untuk mencukupi kebutuhan air Kota Ampana. Untuk itu perludikembangkan dari sumber lain, yakni Sungai Padauloyo
PREDIKSI POTENSI ANTIKANKER SENYAWA TURUNAN XANTHON MENGGUNAKAN HUBUNGAN KUANTITATIF STRUKTUR DAN AKTIVITAS (HKSA) Male, Yusthinus; Sutapa, I Wayan; Pusung, Yulian A. D.
CHEMISTRY PROGRESS Vol 11, No 1 (2018)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/cp.11.1.2018.27907

Abstract

ABSTRAK Telah dilakukan penelitian untuk memprediksi potensi antikanker senyawa turunan xanthon menggunakan hubungan kuantitatif struktur dan aktivitas (HKSA) (Quantitative Structure Activity Relationship-QSAR) dengan deskriptor elektronik berupa muatan bersih atom, momen dipol, polarisabilitas, energi HOMO-LUMO, dan Log P yang dihitung menggunakan metode semi empirik PM3. Hasil analisis HKSA menunjukan bahwa model persamaan HKSA terbaik adalah Log IC50 = 18,730 + (-1,042.qC1) + (1,633.qC2) + (3,369.qC3) + (1,257.qC4) + (29,759.qC8) + (53,543.qC9) + (2,337.qC10) + (-0,161.momen dipol) + (1.550.Ehomo) + (-2,919.Elumo) +(0,140.Polarisabilitas) + (0.892. Log P) (n=27; r=0,997; r2=0,993; SE=0,08530; Fhitung/Ftabel=9,1588; PRESS= 50,04021). Penelitian ini menunjukkan bahwa pusat aktif senyawa turunan xanthon terletak pada atom karbon C1, C2, C3, C4 C8, C9 dan C10 sehingga modifikasi substituen pada posisi-posisi ini akan memberikan dampak signifikan terhadap aktifitas antikanker senyawa turunan xanthon  ABSTRACT The research has been done to predict anti cancer potential of xanthon derivative compounds using Quantitative Structure Activity Relationship (QSAR) with electronic descriptor such as : atomic net charge, dipole moment, polarizability, HOMO-LUMO energy and Log P were calculated by semi-empirical PM3 method. The best QSAR model equation were determined from analysis of multiple linear regression. The result of QSAR analysis shows that best QSAR model equation is Log IC50 = 18,730 + (-1,042.qC1) + (1,633.qC2) + (3,369.qC3) + (1,257.qC4) + (29,759.qC8) + (53,543.qC9) + (2,337.qC10) + (-0,161.momen dipol) + (1.550.Ehomo) + (-2,919.Elumo) +(0,140.Polarisabilitas) + (0.892. Log P) (n=27; r=0,997; r2=0,993; SE=0,08530; Fcal/Ftable=9,1588; PRESS= 50,04021). This research also shows that active site of the xanthon derivatives is located on carbon atom C1, C2, C3, C4 C8, C9 and C10 so that the modification of the substituents in these positions will have a significant impact on the anticancer activity of xanthon derivatives. 
PEMANFAATAN KATALIS CA3(PO4)2 DARI TULANG IKAN TUNA PADA PEMBUATAN BIODIESEL DARI MINYAK BINTANGGUR (CALLOPHYLLUM INOPHYLLUM L) Rosmawaty, Rosmawaty; Sutapa, I Wayan; Kamanasa, Desy
Molluca Journal of Chemistry Education (MJoCE) Vol 8 No 1 (2018): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Prodi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol8iss1pp12-24

Abstract

Biodiesel synthesis from bintanggur oil (Callophyllum inophyllum L.) has been done through esterification and transesterification process with Ca3(PO4)2 catalyst and methanol solvent. Production of Ca3(PO4)2 catalyst process was conducted by calcination of the Tuna?s bone at 1000ºC for 2 hours. The catalyst result was got 58.75%  and then been characterized with XRD. The esterification process was performed with methanol and bintanggur oil in molar ration of 1:9 for 2 hours with 1.25% H2SO4. The transesterification process was conducted with bintanggur oil and methanol in molar ratio of 1:12 for 9 hours with 10% Ca3(PO4)2 catalyst. The conversion result by 1H-NMR is 73.76% and experimentally was 56.87%. Biodiesel was analyzed with FTIR, GC-MS, 1H-NMR and ASTM. ASTM testing result show there are spesific density of 0.9204 g/cm3, kinematic viscosity of 29.68 mm2/s, flash point at 188.5ºC, pour point at 6ºC, Conradson carbon residue of 0.162%,  water content 0.175%, and  copper strip corrosion of 1b
Waste Cooking Oil Conversion To Biodeisel Catalized By Egg Shell Of Purebred Chiken With Ethanol As A Solvent Hellna Tehubijuluw; I Wayan Sutapa; Mealan Lethulur
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 14, ISSUE 1, February 2014
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

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Abstract

The synthesis of biodiesel from the waste cooking oil was carried out using the catalyst from egg shell of purebred chiken with ethanol as a solvent. Synthesis of biodiesel was prepared in two steps, esterification and transesterification. Esterification was conducted in mol ratio of ethanol and waste cooking oil of  9:1 with H2SO4 as a catalyst. Mol ratio of ethanol and used cooking oil in the transesterification of  12:1 with the CaO catalyst of shell eggs. CaO catalyst was yielded by calcinations egg shell of purebred chicken on 1000 for two hours. Calcination product was characterized with XRD to determine of CaO. Result of biodiesel was characterized based on FTIR, H-NMR, dan ASTM (American Standard Testing of Materials). Theoretically,yielded of biodiesel was 58% and experiment was 36.779%.
Synthesis and Structural Analysis of Magnesium Oxide Nanomaterial Using Ethanol as Polymerization Solvent I Wayan Sutapa; Abdul Wahid Wahab; Paulina Taba; Nursiah La Nafie
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 4, No 2 (2019): June 2019
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v4.i2.82

Abstract

The purpose of the study was to synthesize MgO nanomaterials using sol-gel method with ethanol as solvent and to perform structural analysis of the products. Mg-oxalate was initially prepared prior magnesium acetate. Magnesium acetate dissolved in ethanol, and the oxalic acid added to adjust pH until gel phase formed. The gel was heated at 100 C for 24 hours to produce magnesium oxalate solids. Solids was sieved using ±150 mesh then annealed at 550 C for 6 hours to produce MgO nanomaterial. The magnesium oxalate was characterized using FT-IR, XRD, and SEM. FT-IR peak at 3408.22 cm-1; 1709.35 cm-1; 1375.39 cm-1; 830.32 cm-1; 420.48 cm-1, and the XRD peak 17.95o; 22.97o; 25.02o; 27,94o; 35.10o; 37,63o; 44.16o were characteristic of Mg-oxalate. Meanwhile, FT-IR band at 1030.24 cm-1; 2358.94 cm-1; 1627.92 cm-1; 1417.66 cm-1; 437.84 cm-1, and XRD peak at 38.92o; 43.3o; 56.02o; 62.64o; 74.88o and 79.04o shows characteristic of MgO nanomaterial. Structure analysis shown the MgO nanomaterials has an average crystal size 8.11 nm, and lattice length 21.21 nm. The values of strain, stress, energy density crystal and dislocation density of the MgO are 5.3 x 10-5 MPa, 32.97 MPa, 154.81 J/nm2, 1.52 x 10-3 nm-2 respectively. Morphologically the MgO nanomaterial produced is cubic.
PENYULINGAN DAN ANALISIS MINYAK LAWANG (Cinnamoum sp.) MENGGUNAKAN PENYULINGAN TERMODIFIKASI DI KECAMATAN TELUK ELPAPUTIH KABUPATEN MALUKU TENGAH Catherina M. Bijang; Adriani Bandjar; . Mohtar; I Wayan Sutapa
Jurnal Dinamika Pengabdian (JDP) Vol. 5 No. 2 (2020): JURNAL DINAMIKA PENGABDIAN VOL. 5 NO. 2 MEI 2020
Publisher : Departemen Budidaya Pertanian Fakultas Pertanian UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jdp.v5i2.10134

Abstract

One of the distillations of Lawang oil in the District of Elpaputih Bay still uses conventional methods. Therefore, through this activity a distillation process and analysis of the composition of Lawang oil (Cinnamomum sp.) was carried out using a modified distillation. Lawang oil (Cinnamomum sp.) was distilled using a steam distillation process with mace as a source of raw material. Content analysis was performed using GC-MS. From the results of the refining process with the modified refining model, an increase in yield of 47.2 % was obtained compared to the previous refining. Tests on the oil content of obtained show that the oil mostly contained eugenol, safrol, and 4-terpineol. Based on these results, it can be concluded that the modified refining tool has increased the yield of the oil produced. In addition, the compounds of the oil produced are identified.Keywords: Distillation, lawang, GC-MS. ABSTRAKSalah satu penyulingan minyak lawang di Kecamatan Teluk Elpaputih masih menggunakan metode konvensional. Oleh karena itu melalui kegiatan ini telah dilakukan proses penyulingan dan analisis komposisi minyak Lawang (Cinnamomum sp.) menggunakan penyulingan termodifikasi.  Minyak Lawang (Cinnamomum sp.) disuling menggunakan proses destilasi uap dengan kulit kayu lawang sebagai sumber bahan baku.  Analisis kandungan dilakukan dengan menggunakan GC-MS. Dari hasil proses penyulingan dengan model penyulingan termodifikasi diperoleh peningkatan rendemen sebesar 47,2% dibandingkan dengan penyulingan terdahulu. Uji terhadap kandungan minyak lawang yang diperoleh menunjukkan bahwa minyak tersebut sebagian besar mengandung eugenol, safrol, dan 4-terpineol. Berdasarkan hasil tersebut maka dapat disimpulkan bahwa alat penyulingan termodifikasi telah meningkatkan hasil minyak lawang yang diproduksi. Selain itu, senyawa penyusun minyak lawang yang dihasilkan telah diketahui.Kata kunci: Destilasi, lawang, GC-MS.
Analisis Kandungan Unsur Hara Ca, Mg, P, dan S Pada Kompos Limbah Ikan Hellna Tehubijuluw; I Wayan Sutapa; Polansky Patty
ARIKA Vol 8 No 1 (2014)
Publisher : Industrial Engineering Study Program, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (11466.854 KB)

Abstract

Telah dilakukan penelitian tentang analisis kandungan Ca, Mg, P, dan S pada kompos limbah ikan. Kompos limbah ikan diperoleh dengan cara mencampurkan limbah ikan yang telah dijemur selama satu minggu dengan kompos yang berasal dari sisa-sisa tumbuhan, ampas gergaji, dan abu sekam. Campuran kompos dan limbah ikan dimasukan ke dalam tanur pada suhu 600 C selama 45 menit. Analisis kandungan Ca dan Mg menggunakan Spektrofotometer Serapan Atom dan analisis P dan S menggunakan Spektrofotometer UV-Vis. Hasil analisis kandungan unsur hara Ca, Mg, P, dan S masing-masing adalah Ca 9,58% (b/b), Mg 2,97% (b/b), dan S 6,81% (b/b).
APLIKASI KATALIS CaO DALAM PEMBUATAN BIODIESEL DARI MINYAK GORENG BEKAS Jolantje Latupeirissa; I Wayan Sutapa; Harniati P Rego
Molluca Journal of Chemistry Education (MJoCE) Vol 2 No 1 (2012): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol2iss1pp54-61

Abstract

The research of biodiesel from waste cooking oil using CaO as catalyst with two step esterification and transesterification has been done. On esterificatioan step, methanol and waste cooking oil mol ratio is 1:9 with H2SO4 1 M as catalyst. On transesterification process using CaO catalyst is 1:12 on 60-65 oC for 5 hours. Theoritically, biodiesel which resulted is 48,342 % while by experimentally is 30,93 %. The main component which resulted are methyl oleate (42,77%) and biodiesel based on ASTM data results specific density (0,8746), kinematic viscosity (4,706), flash point (170,5), pour point (12) and carbon conradson remaining (0,0193)
PEMANFAATAN KATALIS Ca3(PO4)2 DARI TULANG IKAN TUNA PADA PEMBUATAN BIODIESEL DARI MINYAK BINTANGGUR (Callophyllum inophyllum L) Rosmawaty Rosmawaty; I Wayan Sutapa; Desy Kamanasa
Molluca Journal of Chemistry Education (MJoCE) Vol 8 No 1 (2018): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol8iss1pp12-24

Abstract

Biodiesel synthesis from bintanggur oil (Callophyllum inophyllum L.) has been done through esterification and transesterification process with Ca3(PO4)2 catalyst and methanol solvent. Production of Ca3(PO4)2 catalyst process was conducted by calcination of the Tuna’s bone at 1000ºC for 2 hours. The catalyst result was got 58.75% and then been characterized with XRD. The esterification process was performed with methanol and bintanggur oil in molar ration of 1:9 for 2 hours with 1.25% H2SO4. The transesterification process was conducted with bintanggur oil and methanol in molar ratio of 1:12 for 9 hours with 10% Ca3(PO4)2 catalyst. The conversion result by 1H-NMR is 73.76% and experimentally was 56.87%. Biodiesel was analyzed with FTIR, GC-MS, 1H-NMR and ASTM. ASTM testing result show there are spesific density of 0.9204 g/cm3, kinematic viscosity of 29.68 mm2/s, flash point at 188.5ºC, pour point at 6ºC, Conradson carbon residue of 0.162%, water content 0.175%, and copper strip corrosion of 1b
QSAR Analysis of Benzothiazole Derivatives of Antimalarial Compounds Based On AM1 Semi-Empirical Method Ruslin Hadanu; Salim Idris; I Wayan Sutapa
Indonesian Journal of Chemistry Vol 15, No 1 (2015)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (283.279 KB) | DOI: 10.22146/ijc.21228

Abstract

Quantitative Structure and Activity Relationship (QSAR) analysis of 13 benzothiazoles derivatives compound as antimalarial compounds have been performed using electronic descriptor of the atomic net charges (q), dipole moment (μ), ELUMO, EHOMO and polarizability (α). The electronic structures as descriptors were calculated through HyperChem for Windows 7.0 using AM1 semi-empirical method. The descriptors were obtained through molecules modeling to get the most stable structure after geometry optimization step. The antimalarial activity (IC50) were taken from literature. The best model of QSAR model was determined by multiple linear regression approach and giving equation of QSAR: Log IC50 = 23.527 + 4.024 (qC4) + 273.416 (qC5) + 141.663 (qC6) – 0.567 (ELUMO) – 3.878 (EHOMO)– 2.096 (α). The equation was significant on the 95% level with statistical parameters: n = 13, r = 0.994, r2 = 0.987, SE = 0.094, Fcalc/Ftable = 11.212, and gave the PRESS = 0.348. Its means that there were only a relatively few deviations between the experimental and theoretical data of antimalarial activity.
Co-Authors . Mohtar A Netty Siahaya Abdul Wahid Wahab Adelin, La Adriani Bandjar Alwahab Alwahab Amalia, Fajri Fitra Angga Febrian Astawa, Ida Nyoman Bandjar, A. Bandjar, Adriani Bijang, Catherina Manukpadang Catherina M. Bijang Chaterina Bijang Desy Kamanasa Dewi, Nyoman Diah Utari Dominggus Male Fensia Analda Souhoka Fransina, Eirene G. Gaspersz, Nelson Harniati P Rego Hasanela, Nurani Hehanussa, Susan Hellna Tehubijuluw Hellna Tehubijuluw Imran Jolantje Latupeirissa Kamanasa, Desy Kapelle, Imanuel B. D. Karna Wijaya Karna Wijaya Karna Wijaya La Adelin La Agusu Latupeirissa, Jolantje Maahury, Mirella Fonda Mahulau, Nurlina Maryantho Masarrang Matheis F.J.D.P. Tanasale Mealan Lethulur Mirella Fonda Maahury Muhamad Jamal Nasution, Annio Indah Lestari Nohong Nursiah La Nafie Pattiasina, Priska Marisa Paulina Taba Polansky Patty Priska Marisa Pattiasina Priska Marissa Pattiasina Pusung, Yulian A. D. R, Irwan Rahayu Rahayu Rahayu Rahayu Ranglalin, Olivia M. Ria Amunanto Ria Armunanto Ria Armunanto Rosmawaty Harahap Rosmawaty Rosmawaty Ruslin Hadanu Sahidin Salim Idris Samual, Ismah Sapulete, Sisca Madona Semuel Simra Pada Sherly J. Sekewael Siahay, Victor P.D. Sohilait, Mario Rowan Sriyanti, Gusti Ayu Komang Syahrir THAMRIN AZIS Topurtawy, Ronald R. Wiyasa, I Ketut Yodha, Agung Wibawa Mahatva Yuli Asmi Rahman Yusthinus T. Male Yusthinus Thobias Male Zainal Syam Arifin