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INDONESIA
PROSIDING SEMINAR KIMIA
Published by Universitas Mulawarman
ISSN : -     EISSN : -     DOI : -
Core Subject : Science,
Chemistry
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Articles 45 Documents
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Search results for , issue "SEMINAR NASIONAL KIMIA 2017" : 45 Documents clear
ANALISIS HUBUNGAN KUANTITATIF STRUKTUR DAN AKTIVITAS ANTINOSISEPTIF SENYAWA FLAVONOID PADA DAUN Muntingia Calabura L. MENGGUNAKAN METODE PERHITUNGAN HARTREE FOCK Azrina Nindia; Rahmat Gunawan
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
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Quantitative relationship analysis of the antinosiseptive structure of flavonoid compound on Muntingia Calabura L. leaf has been done. This research used Hartree Fock and Correlation Analysis method using QSAR. The inhibition activity of flavonoid compound and dipole moment are independent variable, while the dependent variable is the active center of the flavonoid compound. The results obtained from structural relations and antinociceptive activity are very strong with a correlation value of 1,00. Then, the result can be significantly influenced on C3 atom and dipole moment of drug with QSAR formula that is A = 2,15 + 0,03 C3 – 0,17 D. Keywords : Flavonoid, Antinociceptive, Hartree Fock, QSAR
PEMBUATAN BRIKET ARANG DENGAN MEMANFAATKAN LIMBAH DARI TEMPURUNG BIJI KETAPANG (Terminalia catappa) DAN TEMPURUNG BIJI KEMIRI (Aleurites molucanna L. Willd.) Sandi Christopher Hutagalung; Erwin Erwin; Aman Sentosa Panggabean
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
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Tropical almond (Terminalia catappa) seed shell and candlenut (Aleurites molucanna L. Willd) seed shell has a huge potential as a source of alternative energy in the manufacture of coal briquettes. This research has been conducted using method of carbonization, mixing, molding, drying and then the briquettes quality was analyzed with test parameters namely inherent moisture content, ash content, volatile matter content, fixed carbon content and calorific value. The results showed that mixture of tropical almond seed shell and candlenut seed shell can be used as briquettes. In this study, the best quality briquettes with mixture variation of tropical almond seed shell and candlenut seed shell was obtained in mixture variation of 25% tropical almond seed shell and 75% candlenut seed shell with calorific value was 5043 cal/gr, fixed carbon content was 47.22%, volatile matter content was 25.96%, ash content was 4.7% and inherent moisture content was 22.11%. But 100% candlenut seed shell also have a good quality briquettes with calorific value was 5098 cal/gr, fixed carbon content was 47.23%, volatile matter content was 28.44%, ash content was 4.24% and inherent moisture content was 20.08%. Keywords: Briquette, Carbonization, Calorific Value, Terminalia catappa, Aleurites molucanna L. Willd
PENAPISAN BAKTERI TERMOFILIK PENGHASIL AMILASE DARI SUMBER AIR PANAS DONDANG DI KECAMATAN MUARA JAWA Muhammad Taufik A. A. R; Winni Astuti; Erwin Erwin
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
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Amylase producing bacteria have been isolated from Dondang hot springs in Muara Jawa sub-district based on clear zone. Dondang hot springs became the site of the discovery of thermostable bacteria. Obtained 1 selected isolate showed amylase activity with the formation of clear zone around the colony on solid media containing 1% starch. Based on the morphology and physiology tests the selected isolates showed the genus Bacillus sp. The results showed total protein concentration of crude extract of enzyme from amylase producing bacteria isolate that is 2, 4068 μg /mL. Keywords: Thermophilic bacteria, amylase, clear zone, protein concentration.
PENURUNAN KANDUNGAN LINIER ALKYLBENZENE SULFONATE (LAS) DALAM LIMBAH LAUNDRY DENGAN ELEKTROKOAGLASI-FLOKULASI Tio Filus; Alimuddin Alimuddin; Aman Sentosa Panggabean
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
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Penelitian tentang penurunan kandungan Linier Alkylbenzene Sulfonate (LAS) pada limbah laundry dengan Elektrokoagulasi-Flokulasi telah dilakukan. Untuk memperoleh hasil penelitian, optimasi dilakukan dengan berbagai variasi. Optimasi yang dilakukan antara lain optimasi waktu, optimasi tegangan, optimasi penambahan NaCl dan optimasi pengadukan dengan alat jar test. Instrumen pengukuran dengan menggunakan alat spectrophotometer UV-Vis. Hasil dari penelitian penurunan kandungan Linier Alkylbenzene Sulfonate (LAS) dari waktu kontak pada titik optimum 150 menit sebesar 74,58 %; kuat tegangan pada titik optimum 12 volt sebesar 69,34 %; penambahan kadar NaCl pada titik optimum 0,75 gr sebesar 52,86 %; dan dari optimasi pengadukan lambat dengan alat jar test pada titik optimum 20 rpm sebesar 17,92 %. Hasil penurunan kandungan Linier Alkylbenzene Sulfonate (LAS) pada limbah laundry dengan waktu, kuat tegangan, kadar NaCl dan pengadukan optimum didapatkan sebesar 73,51 %. Kata Kunci: Elekktrokoagulasi, Flokulasi, Limbah Laundry, Linier Alkylbenzene Sulfonate (LAS).
ANALISIS KADAR ION LOGAM TIMBAL (Pb2+) PADA AIR, IKAN PATIN (Pangasius pangasius), IKAN MAS (Cyprinus carpio L.) DAN IKAN NILA (Oreochromis sp.) DI DANAU BEKAS GALIAN TAMBANG BATUBARA KECAMATAN TENGGARONG SEBERANG Recha Defrosa Morasih Samta Sihotang; Saibun Sitorus; Rahmat Gunawan
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
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An Analysis of Lead Metal Ion Levels (Pb2+) has been conducted on water, Cat fish (Pangasius pangsius), Gold fish (Cyprinus carpio L) and Parrot fish (Oreochromis sp.) in abandoned coal mine lake in Tenggarong Seberang sub-district. This research was intended to determine the Pb metal ion levels inside water and fish also to understand its appropriateness to be consumed by humans. This research was done with using destruction method on the woven basket water sample and fish’s meat sample (Catfish, Goldfish, and Parrotfish) and then proceed the analyzed using Atomic Absorption Spectrophotometer (AAS). Pb levels acquired in this research are 0,039 in Parrot fish woven basket, 0,031 ppm in Goldfish woven basket that exceeds the quality standards threshold according to PP RI No. 82 Tahun 2001, dissimiliar with Pb levels in Catfish woven basket in the amount of 0,016 ppm which is still far below the threshold. While the Pb levels in all three fishes are under standard quality threshold according to SNI 7387:2009 about maximum limit of heavy metal contamination inside foods, where the levels in Parrot fish is 0,138 ppm, goldfish meat as 0,060 ppm and catfish meat as 0,041 ppm. Keywords: Parrot fish, Goldfish, Catfish, Pb levels, Threshold
SINTESIS MATERIAL SILIKA MESOPORI SBA-15 DARI ABU DAUN BAMBU PETUNG (Dendrocalamus asper (Schult.) Backer ex Heyne) Anke Rienhar Saputra; Alimuddin Alimuddin; R.R. Dirgarini Julia N.
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
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A study on the synthesis and characterization of mesoporous silicas SBA-15 (Santa Barbara Acid 15) from bamboo leaf ash. SBA-15 from bamboo leaf ash leaves was synthesized by modification of the microemulsion template method. SBA-15 was characterized by N2 adsorption/desorption analyzer, SAXS (Small Angel X-Ray Difraction), FTIR (Fourier Transform Infrared) and SEM (Scanning Electron Microscopy). N2 adsorption/desorption analyses showed that SBA-15 has type IV isotherms, with H1 type hysteresis which was a characteristic of mesoporous materials. ​​SBA-15 from bamboo leaf ash has surface are (calculated by BET method) of 698 m2 / g, pore volume of 0.81 cm3 /g and pore diameter of 4.66 nm. In the difractogram appeared 3 typical peaks of SBA-15 between 0.5 - 5o 2θ with miller indices (100), (110) and (200), respectively. The FTIR spectrum showed peaks from siloxane (Si-O-Si) and hydroxyl groups (-OH). The SEM pictures showed that the morphology of SBA-15 was a combination of platelets and spheres with the average particle size of 0.5 μm. Kata kunci: Bamboo leaf Ash, SBA – 15
PEMANFAATAN ARANG AKTIF DARI KULIT BUAH BINTARO (Cerbera Manghas) SEBAGAI ADSORBEN ION LOGAM Mn (II) Margarita Margarita; Saibun Sitorus; Rahmat Gunawan
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
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There has been research on the utilization of activated charcoal carbon as an adsorben of cerbera manghas shell in metal ions Mn. This research was intended to find the effects of pH value, contact period and to determine the maximum adsorptive capacity Mn metal ions by cerbera manghas shell activated carbon. The adsorption process have been variate of pH 2, 3, 4, 5 dan 6; contact time variation 15, 30, 45, 60 and 75 and 90 minutes; concentration variation 20, 40, 60, 80 and 100 mg/L. The analysis of metal ions Mn concentration by cerbera manghas shell activated carbon by using atomic absorption spectrophotometer (AAS). The result of this research shows that cerbera manghas activated carbon could adsorb metal ion Mn. The optimum condition was achieved at the pH 2 with a number of metal ions that adsorbed at 9,689 mg/L, with optimum period of 90 minutes with a number of metal ions that adsorbed at 9.414 mg/L, as for optimum concentration was achieved at the cosentration 100 mg/L with a number of metal ions that adsorbed at 25,932 mg/L. Keywords : cerbera manghas shell, activated carbon, adsorption, metal ions Mn.
PEMBUATAN DAN KARAKTERISASI SULFONAT TERIMPREGNASI PADA SILIKA DARI ABU SEKAM PADI (RICE HUSK ASH) Nirwanto Pasuluran; Erwin Erwin; Noor Hindryawati
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
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Preparation of sulfonate silica as acid catalyshas been done with rice husk ash material using impregnation method. The process of making the catalyst was conducted on the extraction and impregnation. The results of the study were characterized using FT-IR spectrophotometer and SEM. Based on the FT-IR resultsthere is vibration from the group S=O at a wavelength of 1069.73 cm-1 is and pores on the surface of the silica filled by molecules of –SO3H Keywords: Silica,Rice Husk Ash, Impregnation
SENYAWA FENOLIK DARI DAUN HALBAN (Vitex pinnata Linn) SEBAGAI ANTIOKSIDAN Mastura Mastura; Tonel Barus; Lamek Marpaung; Partomuan Simanjuntak
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
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Isolation and identification a phenolic compound from Aceh traditional medicinal plants “Halban” leaves (Vitexpinnata Linn) had been done. Isolation was carried out by extracted Halban leaves with methanol solvent, and then portioned with n-hexane, ethylacetate, and evaporated to gave n-hexane, ethylacetate and water extracts. Purification of ethylacetate was conducted with clumn chromatography (SiO2; (i). n-hexane-ethylacetate = 10 : 1 ~ 1 : 1 (ii). n-hexane-ethylacetate = 2 : 1 (iii). N-hexane-acetone = 1 : 1 to gave one pure compound. Identification of isolated compound by interpretation of Ultra violet (UV), Infra Red (IR), and Nuclear magnetic Resonance (1H- & 13C-NMR) spectra showed the compound is 4-hydroxyl methyl benzoate which has activity as antioxidant IC50 41.08 ppm. Keywords: Halban; Vitexpinnata Linn; verbenaceae; antioksidan; 4-hydroxyl methyl benzoate
ANALISIS KADAR LOGAM Pb, Mn DAN KANDUNGAN PROTEIN PADA DAGING UDANG WINDU (Penaeus sp.) YANG DIAMBIL DI PERAIRAN SUNGAI DONDANG KECAMATAN MUARA JAWA Riyan Octavianus; Rudi Kartika; Noor Hindryawati
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
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Research on metal concentration of Pb, Mn and protein content in windu shrimp’ meat (penaeus sp.) analysis in Dondang river, kecamatan Muara Jawa have done. This research is aimed to determine the concentration of heavy metal Pb, Mn and concentration of protein inside windu shrimp based by size and different sampling location. Concentration of heavy metal Pb, Mn and protein are correlated using Least Square method. Concentration of heavy metal Pb and Mn are analyzed by using AAS (Atomic Absorption Spectrophotometry) and concentration of protein are analyzed by using Kjeldahl method. Result of this research is the concentration heavy metal Pb and Mn in sampling point 1 in average concentration are 0.556 mg/L and 0.463 mg/L, sampling point 2 are 0.790 mg/L and 0.738 mg/L, sampling point 3 are 0.876 mg/L and 0.905 mg/L. Concentration of protein in windu shrimp in sampling point 1 in average are 23.4928%, sampling point 2 are 28.1701% and sampling point 3 are 29.1622%. Correlation of concentration of heavy metal Pb and Mn to the concentration of protein in windu shrimp (penaeus sp.) with R = 0.791; r = 0.948. Keywords: heavy metal Pb, heavy metal Mn, protein, windu shrimp (penaeus sp).

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