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Profil Asam Lemak Bakasang yang Dibuat dengan Variasi Feti Fatimah; Johanis J. Pelealu; Sanusi Gugule; Trina Tallei
IPTEK Journal of Proceedings Series No 4 (2019): Seminar Nasional Kimia (SENAKI) XV 2019
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (744.86 KB) | DOI: 10.12962/j23546026.y2019i4.6117

Abstract

Bakasang merupakan produk pangan yang diolah melalui proses fermentasi jeroan ikan dan merupakan salah satu makanan khas wilayah Indonesia bagian timur terutama Sulawesi Utara. Pengolahan Bakasang di Sulawesi Utara umumnya masih sangat sederhana, isi perut ikan biasanya dimasukkan bersama garam ke dalam botol plastik, kemudian dijemur dibawah terik matahari beberapa hari hingga berubah menjadi cairan. Penelitian ini dimaksudkan untuk mengetahui profil asam lemak Bakasang yang diolah dengan suhu terkontrol dengan variasi waktu fermentasi 5, 10 dan 15 hari, menggunakan kadar garam 10 dan 20%. Uji profil asam lemak dilakukan menggunakan Kromatografy Gas-Spektrofotometer Massa (GC-MS) dengan terlebih dahulu dilakukan proses ekstraksi dan transesterifikasi. Hasil penelitian menunjukkan bahwa waktu fermentasi berpengaruh terhadap profil asam lemak Bakasang. Meningkatnya waktu fermentasi Bakasang akan meningkatkan jumlah puncak dalam kromatogram. Kadar (poly unsaturated fatty acid) PUFA Bakasang menurun dengan meningkatnya waktu fermentasi, sebaliknya kadar asam lemak jenuh meningkat dengan meningkatnya waktu fermentasi. Senyawa asam lemak dominan dalam Bakasang adalah asam heksadekanoat, asam lemak oktadekanoat dan eicosa pentaenoic acid (EPA). Kadar EPA Bakasang tertinggi adalah 30.12% yakni Bakasang yang diolah dengan lama fermentasi 5 hari, menggunakan kadar garam 10 dan 20%.
Pemisahan dan Karakterisasi Etanol dari Nira Aren (Arenga pinnata) (Separation and Characterization of Ethanol from Palm Sap (Arenga pinnata)) Sanusi Gugule; Feti Fatimah; Chaleb P. Maanari
IPTEK Journal of Proceedings Series No 4 (2019): Seminar Nasional Kimia (SENAKI) XV 2019
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (747.969 KB) | DOI: 10.12962/j23546026.y2019i4.6109

Abstract

Telah dilakukan penelitian tentang pemisahan dan karakterisasi etanol dari nira aren (Arenga pinnata). Pemisahan dan analisis dilakukan dengan teknik distilasi secara bertahap, dilanjutkan dengan penentuan sifat-sifat fisik; sedangkan identifikasi struktur dilakukan secara spektrofotometer inframerah, kromatografi gas-spektrometer massa, spektrometer RMI1H. Hasil identifikasi struktur dengan spektrofotometer inframerah menunjukkan adanya gugus fungsi hidroksil (-OH) dan alkil (-C2H5), sedangkan hasil identifikasi dengan spectrometer RMI1H menunjukkan 3 karakteristik puncak hydrogen yakni H pada gugus hidroksil (–OH), metilen (-CH2-) dan metil (-CH3). Selanjutnya, hasil uji kromatografi gas-spektrometer massa menunjukkan 1 puncak dengan kadar etanol nira aren mencapai 100% serta fragmentasinya mengikuti pola struktur etanol (C2H5OH).
Mempelajari Reaksi Transesterifikasi Terkatalisis Kalsium Oksida nia yuniar kandou; Sanusi Gugule; Anderson Arnold Aloanis
Jurnal Kimia Fullerene Vol 5 No 2 (2020): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v5i2.163

Abstract

Research on the virgin coconut oil transesterification reaction catalyzed calcium oxide has been carried and determination of its characteristics include physico-chemical properties, analysis of reactions results using infrared spectrophotometry and gas chromatography-mass spectrometry (GCMS). The purpose of this research is to study the transesterification reaction catalyzed calcium oxide and find out its characteristics. VCO transesterification reaction catalyzed calcium oxide was carried out for 3 hours at a temperature 7 with a catalyst of 1%. The results of this reaction have as much yield ; 39,89% and the alleged characteristic change due to new ester that is, density 0,88 g/mL, kinematic viscosity 2,73 mm2/s (cSt), acid number 0,59 mg KOH/g, ester number 148,43 mg KOH/g and peroxide number 4,27 mek O2/kg. The results of infrared spectrophotometry analysis showed absorption bands for ester and GCMS analysis gave the peak of the compound suspected as ethyl ester with three peaks which had the most abundance in the form of ethyl laurate 58,32%, ethyl myristate 16,82% and ethyl palmitate 6,92%.
Sintesis Triacetin dari Gliserol dan Asam Asetat dengan Katalis Zeolit Alam Termodifikasi Semuel Gideon Rommy Kosegeran; Sanusi Gugule; Johny Zeth Lombok
Jurnal Kimia Fullerene Vol 6 No 2 (2021): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v6i2.362

Abstract

Research has been conducted on the synthesis of triacetin from glycerol and acetate acid by the modify of natural zeolite catalyst with sulfuric acid 6N and followed by the characterization of the results of the reaction. Modified natural zeolite followed by an analysis of infrared spectrophotometry and x-ray diffraction (XRD). The characterization showed that modified natural zeolite has mordenite characteristics. The concentration of modified zeolite used is 3, 5, and 7% by weight of acetate acid as its reactant. Data processing used is one-way variation analysis and its characteristics seen in the physical-chemical test, followed by an analysis of gas chromatography-mass spectroscopic (GCMS) and infrared spectrophotometry. Based on the results of data processing, the concentrations of modified zeolite 3, 5, and 7% did not affect the yield of triacetin esterification reactions, the results respectively were 75,2881%, 71,9681%, and 69,0431%. The characterization results show that the physical-chemical properties of the reaction such as density, viscosity, and solubility are not following Standar Nasional Indonesia (SNI) of triacetin. The results of the GCMS analysis showed that there were two peaks with their respective fragments and the results of the infrared spectrophotometric analysis showed the presence of functional groups absorption for ester compounds.
Pemisahan dan identifikasi komponen-komponen utama minyak atsiri dari daun cengkeh segar dan kering (syzygium aromaticum) martha tuganyita; Sanusi Gugule; I Dewa Ketut Anom
Jurnal Kimia Fullerene Vol 4 No 2 (2019): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (439.064 KB) | DOI: 10.37033/fjc.v4i2.71

Abstract

This study aims to separate and identify the main components of essential oils from fresh clove and dried clove leaves through a steam distillation process. The resulting are dried with Na2SO4 and obtained 0.6203 mL of fresh clove oil and 2.2014 mL of dried clove oil. Clove oil was identified using IR and GC-MS. IR analysis shows that fresh oil has a wavelength of 3510.45-3448.72 cm-1 and the presence of an OH group, 2924.09-2846.93 cm-1, there is an aliphatic C-H group, 3070.68 cm-1 the presence of a benzene C-H group and 1604.77 cm-1 indicate the presence of benzene groups. Dry clove oil has a wavelength of 3518.16-3456.44 cm-1, the presence of OH groups, 2931,8-2846.3 cm-1, the presence of aliphatic C-H groups, 3070,68 cm-1 presence of C-H benzene groups and 1604,77 cm-1 indicate the presence of benzene groups. The results of the GC-MS chromatogram analysis of fresh clove oil and dried clove oil showed 7 peaks which showed 7 compounds. Of the 7 peaks produced, the highest peak has similarities with the chromatogram of eugenol and caryophyllene.
THE ADDITION EFFECT OF SULPHANILIC ACID TO THE SYNTHESIS OF 3,4-METHYLENEDIOXYBENZALDEHYDE Feti Fatimah; Sanusi Gugule
Indonesian Journal of Chemistry Vol 11, No 3 (2011)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (459.037 KB) | DOI: 10.22146/ijc.21382

Abstract

It was conducted a research about the addition effect of sulphanilic acid to the synthesis 3,4-methylenedioxybenzaldehyde from the isosafrole using reagents of sodium dichromate, sulphuric acid, and sulphanilic acid. The separation and purification of product were performed using the chromatography column. The purity of the result was tested using thin layer chromatography and determination of the melting point. Furthermore, it was identified its structure using infrared spectrophotometer, 1H and 13C nuclear magnetic resonance spectrometry, and mass spectrometry. The experimental result showed that the percentage yield of 3,4-methylenedioxybenzaldehyde with addition sulphanilic acid was 79.54%.
Pembelajaran Multipel Representasi Disertai Praktikum Pada Materi Ikatan Kimia Gustafo Johansen Wilar; Sanusi Gugule
Oxygenius Journal Of Chemistry Education Vol 3 No 2 (2021): Oxygenius: Journal of Chemistry Education
Publisher : Chemistry Department, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/ojce.v3i2.276

Abstract

The purpose of this study was to determine the effectiveness of Multiple Representations learning for chemical bonding material. This research was conducted at MA Muhammadiyah Talawaan Bajo in the academic year of 2020/2021. The research method used is descriptive qualitative. Twelve students of class X MIA were selected to be assigned as research samples. The data was collected by means of a test in the form of multiple choice questions as many as 15 items on chemical bonding materials. The data collection technique used the pretest and posttest questions. The test results obtained showed that there was a significant difference in student learning outcomes using multiple representations where the average score of students was 85.75 with N – Gain of 0.72 that classification as high. Based on these results it can be stated that as a result of learning using multiple representations of chemical bonding material, there is a development in students' knowledge.
Cinnamon (Cinnamomum burmannii) Bark Essential Oil as Raw Material for Skin Cream and Anti-Bacterial Sandra Lewa; Sanusi Gugule
Acta Chimica Asiana Vol. 5 No. 1 (2022)
Publisher : The University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/aca.v5i1.80

Abstract

Research has been carried out to identify the essential oil components of cinnamon bark (Cinnamomum burmannii) which will be used in the manufacture of face creams and to test its inhibition against Staphylococcus aureus bacteria. Cinnamon bark essential oil was separated by steam distillation method. The essential oils obtained were identified by gas chromatography-mass spectroscopy (GC-MS) and infrared spectra. The GC-MS chromatogram of cinnamon bark essential oil yielded 3 peaks. The compound that has the largest retention time and concentration is 1,3 octadien-3-ol (linalool). Analysis of absorption data in the infrared spectrum resulted in 3 specific bonds, namely C=O (aldehyde), C=C (aliphatic), and C=N (imin) groups. The results of the formulation and characteristic test of cinnamon bark essential oil cream, all formulations met the National Standard, namely pH 7, adhesion 28.61 seconds, spreadability of 6.1 cm. Inhibition against Staphylococcus aureus was tested using the diffusion method. The greatest inhibitory power was found at a concentration of 15% with a clear zone formed of 2.15 mm.
Pengaruh Penggunaan Peta Konsep Terhadap Hasil Belajar Siswa Kelas X IPA SMA Negeri 2 Tondano Pada Materi Ikatan Kimia Adrian Dungir; Sanusi Gugule
Oxygenius Journal Of Chemistry Education Vol 3 No 1 (2021): Oxygenius: Journal of Chemistry Education
Publisher : Chemistry Department, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/ojce.v3i1.224

Abstract

This study was conducted to see the effect of using concept maps on student learning outcomes at SMA Negeri 2 Tondano on chemical bonding material by comparing the average student learning outcomes of the experimental group using concept maps with the control group using conventional methods. The method used in this research is the experimental method in the form of Posttest Only Control Design. The population of this study were all students of class X SMAN 2 Tondano. The sample consisted of a class of 22 students, which were then divided into two groups as the experimental group and the control group, each with 11 students. Data for hypothesis testing is data obtained from the final test. Based on the hypothesis test, the result of significance (2-tailed) was 0.001. Based on the test conditions, if the significance (2-tailed) < 0.05 then Ho is rejected and Ha is accepted. These results indicate that there are significant differences in student learning outcomes from the experimental group and the control group, which means that the use of concept maps has a significant effect on student learning outcomes.
Pengaruh Model Process Oriented Guided Inquiry Learning (POGIL) Terhadap Hasil Belajar Siswa Pada Materi Titrasi Asam Basa Di SMA Negeri 1 Kakas Kabupaten Minahasa Ratih Anita Memah; Sanusi Gugule; Dokri Gumolung
Oxygenius Journal Of Chemistry Education Vol 2 No 1 (2020): Oxygenius : Journal of Chemistry Education
Publisher : Chemistry Department, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/ojce.v2i1.140

Abstract

This study aims to determine the effect of POGIL learning models on student learning outcomes on acid-base titration subject. This research was conducted in class XI MIPA 2 and XI MIPA 3 in SMA Negeri 1 Kakas. The method used is an experimental method with a post-test only control design research design. The research sample consisted of 30 students, who were randomly drawn. The experimental class uses the POGIL method, the control class uses conventional learning. Student learning outcomes data obtained from post-test scores. Analysis of research data shows that there are differences in the average value of student learning outcomes of the experimental class taught by using the POGIL method and the average value of the learning outcomes of control class students who are taught by using conventional learning on mole concept material. Data analysis using t-test at a significant level α = 0.05. Statistical analysis of student learning outcomes obtained tcount > ttable or 3,078 > 2,048. So it can be concluded that there is a positive influence between student learning outcomes using the POGIL method and student learning outcomes using conventional learning on acid-base titration subject.