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All Journal Jurnal Entropi Jurnal Inovasi Sainstek Jurnal Pengabdian Pada Masyarakat Jurnal Pendidikan Kimia (JPKim) Indonesian Journal of Chemistry Jambura Journal of Educational Chemistry Jambura Journal of Chemistry Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat)
Weny J.A Musa
Universitas Negeri Gorontalo
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Education Engineering Environmental Science Medicine & Pharmacology Public Health Social Sciences Other

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Journal : Sainstek

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ANALISIS KADAR ASAM LINOLEAT DAN ASAM LINOLENAT PADA TAHU DAN TEMPE YANG DIJUAL DI PASAR TELAGA SECARA GC-MS Kilo, Ahmad Kadir; Isa, Ishak; Musa, Weny JA
Sainstek VOL 06, NO 06, 2012
Publisher : Jurnal Sainstek

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The purpose of this research is to measure Linoleic Acid and Linolenic Acid Level in Tofu and Fermented Soybean Cake through Gas Chromatography-Mass Spectrometry. This is a laboratory research that use tofu and fermented soybean cake from Telaga traditional market as the sample of research. Sample was extracted by using n-hexane to produce oil. Then, oil was hydrolyzed by using KOH liquid and H2SO4 as a catalyst to get the free fatty acid. Then, it was converted to metil ester by using CH3OH as a solvent and H2SO4 as a catalyst for the necessity of fatty acid analysis. This research used Gas Chromatography-Mass Spectrometry to identify Linoleic Acid and Linolenic Acid Level in the sample. The analysis result shows that the biggest component of metil ester in tofu and soybean cake are dominated by metil linoleic (metil 9.12-octadekadienoat) with percentage 55.25% and 27.08% for each. Mean, the linolenic acid in tofu and fermented soybean cake cannot be detected by GC-MS. It is caused by the fermentation time, high temperature during production and fermentation, and humidity in the sample. Therefore, a further research is necessary to investigate level of linolenic acid. In tofu and fermented soybean cake.
ANALISIS LOGAM-LOGAM PADA BATU APUNG DAN MODIFIKASINYA SERTA UJI ADSORPSINYA PADA LARUTAN ASAM ASETAT ., Zukria; Mardjan, Mardjan; Musa, Weny J.A
Sainstek VOL 06, NO 05, 2012
Publisher : Jurnal Sainstek

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The study aims to analyze metal pregnancy in pumice and the modification with test adsorbtion to acetic acid. sample are taken from gorontalo city and kab. buol. at first sample menggrinding use uphand, then refined with mortal up to pass by sieve 100 mesh. Smoothing of both pumice modified with soaking in solution of HCl 1 M, 1 M H2SO4 and HNO3 1 M, the next made into pellets, calcined at 6000C. the metal pregnancy determination (Cr, Ca, Mg, Mn, and Fe) with Atomic Absorption Spectroscopy (AAS), Si and Al with technique gravimetric, with test adsorpsi solution with titration technique.The analysis showed levels of Si in Gorontalo and Buol pumice increased with immersion HNO3, and the smallest Al content in Gorontalo and Buol pumice with HNO3 immersion. The levels of metals (Cr, Ca, Mg, Mn, and Fe) on Buol's pumice increased with HCl immersion, and levels of metals (Cr, Ca, Mg, Mn, and Fe) in Gorontalo's pumice decreased by HCl immersion. Characterization results showed the two samples of pumice adsorb both modified and unmodified for acetic acid is very good.
ISOLASI DAN IDENTIFIKASI SENYAWA FENOL DARI EKSTRAK METANOL BIJI PEPAYA (Carica Papaya Linn) Olii, Helda; Musa, Weny J.A; Paputungan, Mardjan
Sainstek VOL 07, NO 01, 2013
Publisher : Jurnal Sainstek

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Isolation and Identification Fenol Compound of Papaya Seed (Carica Papaya L). The objective of this sresearch is to isolate and identify the compound from Papaya Seed (Carica Papaya L). There are around 600gr of Papaya Seed (Carica Papaya L) pollen mixed with methanol solution and produced 4,6 L of solution then evaporated and produced 88, 89 gr thick extract. Separation by chromatography column got 7 fractions (H1 -H 7). Fraction H7 continued by purify tested by using dimension KLT 1 and KLT 2 produced 1 spot. The chemistry tested shows positively to fenol and alkaloid. Pure isolate continued by spectrometry analysis UV-Vis and IR. The result of spectopometry from isolate showed that there are an absorption on wave length 262, 5 nm tape 1 and 213, 5 nm tape 2. Identification by IR shows that there are cluster function O-H bond, C-H aromatic, C-H Aliphatic, C=C, C=O, and C=O. from both analysis and chemistry tested pure isolate compound is Fenol compound.
Co-Authors Achmad Zainuddin Ahmad Kadir Kilo Anwar, Zois Bintaria, Harianti Boima Situmeang Boima Situmeang Dewi Wahyuni K. Baderan Diky Kurniawan Fauziah, Eka Donna Hariani, Wa Helda Olii Hersanti - Ibrahim, Agus Malik Ishak Isa Iswan Dunggio La Alio Lukman A. R. Laliyo M Amrin Sunardi Mardjan Mardjan Mardjan Paputungan Muhridja, Melisa Murniati . Nurhayati Bialangi Riska Aksara Roekmi-ati Tjokronegoro Ruslan, Rusnawati Saronom Silaban Sriwijayanti Suleman Duengo Susparini, Ninik Triayu Wulansari, Najwa Shanti Yuszda K Salimi Zukria .