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All Journal HAYATI Journal of Biosciences ACTA VETERINARIA INDONESIANA Teknotan: Jurnal Industri Teknologi Pertanian Jurnal Penelitian Hasil Hutan Jurnal Bioteknologi & Biosains Indonesia (JBBI) INDONESIAN JOURNAL OF ESSENTIAL OIL Jurnal Perikanan Universitas Gadjah Mada Chemistry Indonesian Journal of Chemical Research Eksakta : Berkala Ilmiah Bidang MIPA Fullerene Journal of Chemistry Jurnal Penelitian Hasil Hutan Science Nature Jurnal Pengabdian Masyarakat (ABDIRA) JURNAL TEKNIK INDUSTRI BAKIRA: Jurnal Pengabdian Kepada Masyarakat Innovation for Community Service Journal Jurnal Penelitian Hasil Hutan
Kapelle, Imanuel B. D.
Department Of Chemistry, Faculty Of Mathematics And Natural Science, Universitas Pattimura, Ambon, Indonesia
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Pemanfaatan Software Kimia Komputasi Untuk Siswa SMA Negeri 2 Seram Bagian Barat Mario Rowan Sohilait; Nelson Gaspersz; I Wayan Sutapa; Hellna Tehubijuluw; Imanuel B. D Kapelle; Rahayu Rahayu; Priska Marissa Pattiasina; Fensia Analda Souhoka; Nurani Hasanela
Innovation for Community Service Journal Vol 1 No 1 (2023): April 2023
Publisher : Department of Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/icsj.v1i1.8551

Abstract

Pandemi global Covid-19 yang melanda seluruh dunia turut berdampak signifikan di bidang pendidikan. Salah satunya proses pembelajaran di tingkat SMA yang berubah dari kelas tatap muka menjadi kelas online, menyebabkan ada siswa yang kesulitan memahami pelajaran. Kurangnya pemahaman materi sebelumnya menyebabkan siswa kesulitan beradaptasi pada materi lanjutan pada saat kelas luring berlangsung, misalnya untuk pelajaran kimia. Oleh karena itu, untuk meningkatkan pengetahuan dan pemahaman siswa-siswi SMA tentang kimia, dapat dilakukan melalui pendekatan kimia komputasi. Kegiatan pengabdian masyarakat yang dilakukan bertujuan untuk menumbuhkan minat siswa-siswi SMA, sehingga lebih mengenal dan dapat mengoperasionalkan software kimia komputasi sebagai pembelajaran kimia yang menarik. Kegiatan ini dilakukan dengan metode ceramah dan praktek langsung bagi siswa-siswi. Ketua tim menyampaikan materi tentang pengantar kimia komputasi, aplikasi dan manfaat kimia komputasi dalam bidang sains, serta bagaimana pemodelan struktur molekul menggunakan program HyperChem dan Gaussian. Pada tahap praktek langsung, siswa dilatih mengoperasionalkan komputer dan memanfaatkaan software untuk mempelajari struktur molekul organik sederhana. Molekul etanol digambar oleh siswa menggunakan ChemSketch dan optimasi geometri menggunakan Hyperchem, sedangkan visualisasi molekul air menggunakan Gaussian. Setelah kegiatan pengabdian berlangsung, siswa-siswi SMA Negeri 2 Seram Bagian Barat lebih memahami konsep tentang struktur molekul dan lebih antusias ingin mempelajari kimia setelah penggunaan software kimia komputasi tersebut.
Pelatihan Pembuatan Virgin Coconut Oil (VCO) di Negeri Morella, Maluku Tengah Shielda Natalia Joris; Imanuel B. D. Kapelle; Serly J. Sekewael; Ivonne Telussa; Semuel S. Pada; Stephanie P. Sohilait
Innovation for Community Service Journal Vol 1 No 2 (2023): Oktober 2023
Publisher : Department of Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/icsj.v1i2.8996

Abstract

Kegiatan pengabdian kepada masyarakat dengan mengusung tema peningkatan nilai ekonomis santan kelapa melalui pembuatan virgin coconut oil (VCO) merupakan salah satu bentuk kepedulian akademisi bidang kimia terhadap penyebaran informasi dan produksi produk industri rumah tangga dengan nilai ekonomis tinggi. Penyebarluasan aplikasi, prosedur pembuatan, serta prosedur pemasaran maupun pencerahan informasi dapat dilakukan untuk mengedukasi masyarakat untuk meningkatkan pengetahuan tentang produk maupun proses kimia di sekitarnya. Selain itu, secara tidak langsung, masyarakat penerima informasi ini dapat mengaplikasikannya dan menjadi produsen industri kecil berskala rumah tangga. Hal ini dapat membantu membangkitkan ekonomi nasional setelah masa pandemik. Kegiatan pengabdian kepada Masyarakat berupa pelatihan pembuatan VCO bagi Masyarakat Negeri Morella, Maluku Tengah dilakukan dengan metode demonstrasi secara interaktif dan terstruktur untuk menginisiasi creative thinking masyarakat setempat dalam memanfaatkan potensi kelapa. Peserta kegiatan merupakan tim pelatihan dan masyarakat Negeri Morella telah berhasil membuat produk VCO khas Negeri Morella.
Pelatihan Pembuatan Hand Sanitizer Berbahan Dasar Alkohol Hasil Redestilasi Sopi Di SMA Negeri 40 Maluku Tengah Priska Marisa Pattiasina; Imanuel B.D Kapelle; Nelson Gaspersz; Mimi Salmawati; Dewi Sri
Innovation for Community Service Journal Vol 1 No 2 (2023): Oktober 2023
Publisher : Department of Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/icsj.v1i2.10508

Abstract

Keberadaan tanaman mayang di daerah Maluku Tengah cukup banyak. Pada umumnya masyarakat setempat memanfaatkan tanaman mayang hanya sebagai bahan baku pembuatan minuman tradisional beralkohol yang dikenal dengan nama sopi. Alkohol yang terkandung dalam minuman sopi tersebut dapat ditingkatkan kadar alkoholnya dengan cara redestilasi, sehingga dapat dijadikan bahan baku dalam pembuatan produk hand sanitizer. Oleh karena itu tim dosen Jurusan Kimia FMIPA Universitas Pattimura melakukan pelatihan pembuatan produk hand sanitizer berbahan dasar hasil redestilasi sopi kepada para siswa dan guru di SMA Negeri 40 Maluku Tengah. Pelatihan yang telah dilakukan meliputi redestilasi sopi, dan perhitungan formula serta demo pembuatan hand sanitizer. Diharapkan kedepannya para siswa dan guru dapat membuat produk tersebut dan dapat melatih masyarakat setempat untuk turut memanfaatkan minuman sopi sebagai bahan untuk menghasilkan produk hand sanitizer yang memiliki nilai guna untuk menjaga kesehatan masyarakat.
Synthesis of Methyl Esters from Banda Nutmeg and Papua Nutmeg Oil Production Wastes Using the Ultrasonication Method Kapelle, Imanuel Berly Delvis; Sohilait, H.; Rante, Natalia C.D.
Teknotan: Jurnal Industri Teknologi Pertanian Vol 18, No 2 (2024): TEKNOTAN, Agustus 2024
Publisher : Fakultas Teknologi Industri Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jt.vol18n2.7

Abstract

Methysters from oil production waste from Banda nutmeg (Myristicafragrans Houtt) and Papuan nutmeg (Myristica Argentea Ware) go through several process stages, namely isolation of trimyristin and synthesis of methyl ester. The process of isolating trimyristin from nutmeg essential oil production waste by maceration using chloroform solvent. The transesterification process with methanol uses a CaO catalyst and ultrasonication method for 20 minutes; the results are analyzed using GCMS. The results of isolating trimyristin from nutmeg oil waste for Papuan nutmeg yielded 55.6 g of trimyristin (22.24%), which was greater than Banda nutmeg which was 49.7 g of trimyristin (19.88%). Transesterification results for Banda nutmeg oil waste obtained 28.57% soakage with a composition of 5 known major methyl ester compounds, namely methyl laurate (3.22%), myristicin (13.48%), metal myristate (53.39%), methyl Palmitate (5.24%), and Methyl Oleate (9.33%). In Papuan nutmeg oil waste, a 3.93% soakage was obtained with a composition of 5 known methyl ester compounds, namely metal myristate (19.80%), methyl arachidate (18.04%), methyl linoleate (1.42%), methyl oleate ( 48.37%), and methyl stearate (3.18%). The sonication method can synthesize methyl esters from nutmeg oil waste and gives different results for the two types of nutmeg. The results of the trimyristin transesterification of Banda nutmeg seeds and Papuan nutmeg seeds using a CaO catalyst using the sonication method resulted in a methyl ester soak of Banda nutmeg waste 28.57% and Papuan nutmeg 3.93%.
Synthesis Of Derivate Acetophenone From Fenol And Eugenol Kapelle, Imanuel B. D.; Matsjeh, Sabirin
Indonesian Journal of Chemical Research Vol 1 No 1 (2013): Edisi Pertama (First Edition)
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2013.1-ima

Abstract

The synthesis derivate acetophenone from fenol and eugenol had been carried out. The acylation of fenol was performed by anhydride acetate and the fries rearrangement reaction was carried out using AlCl3 catalyst at temperature of 50oC produce ortho-hydroxyacetophenone (35,29 %), purity was tested by GC, structure elucidation of these product ware analized by FTIR and 1H-NMR. Acylation reaction of eugenol was performed by anhydride acetate in base condition at temperature of 120oC for 3 h produce 5-allyl-2-hydroxy-3-metoksi acetophenone (21,42%), purity was tested by GC, structure elucidation of these product ware analized by FTIR, 1H-NMR and MS.
Bioethanol Production From Waste Coconut Water Through Fermentation Process Malle, Dominggus; Kapelle, Imanuel B. D.; Lopulalan, Flourence
Indonesian Journal of Chemical Research Vol 2 No 1 (2014): Edisi Bulan Juli (Edition For July)
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2014.2-dom

Abstract

Bioethanol can be produced through glucose fermentation using saccharomyces cerevisiae. Was done to make coconut water contains a small amount of carbohydrate. A researcher had taken research was done to make bioethanol from coconut water waste. The result of the research shows that coconut water fermentation with yeast has maximum speed after 70 minutes of incubation. The fermentation solution was then distilled. Bioethanol purity was about 76-80% after HPLC analysis.
Trimyristin Isolation From Nutmeg And Synthesis Of Methylester Using Heterogen Catalyst Kapelle, Imanuel B. D.; Laratmase, Marsela S.
Indonesian Journal of Chemical Research Vol 2 No 1 (2014): Edisi Bulan Juli (Edition For July)
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2014.2-ima

Abstract

Trimyristin isolation from the nutmeg and synthesis of methylester using heterogen catalyst has been carried out in several stages, included isolation of nutmeg oil, trimyristin isolation and synthesis of methylester. The synthesis was started by isolation of nutmeg oil with steam distillation for 8 hours. It yields was 308 mL of nutmeg oil. The isolation trimyristin from nutmeg with maseration using chloroform yields trimirystin 17 g (11%), structure elusidation of these products was analized by FTIR and 1H-NMR. The synthesis methylester using CaO catalyst and methanol yields 1,78 g (89,02%) of methyl myristate. Product purity was tested by GC and structure elusidation was analized by FTIR and MS.
Chemical Composition Oil and Ethanol Extract of Nutmeg Leaf and Antibacterial Test Against Staphylococcus aureus and Pseudomonas aeruginosa Kapelle, Imanuel Berly Delvis; Souhoka, Fensia Analda; Walla, Ainun Maharani
Indonesian Journal of Chemical Research Vol 10 No 1 (2022): Edition for May 2022
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2022.10-ima

Abstract

This study aims to determine the yield and composition of the essential oil and ethanol extract of nutmeg leaves and determine its antibacterial activity against Staphylococcus aureus and Pseudomonas aeruginosa bacteria. Nutmeg leaf oil was obtained by isolation using steam-water distillation and extraction methods using maceration with ethanol as solvent. The moisture content of nutmeg leaves is 11.11%. From the distillation method, 0.26% nutmeg oil was obtained, while the yield of nutmeg oil was 29.01% from the extraction method. Gas Chromatography-Mass Spectrometer analysis showed that distilled nutmeg oil contains 20 components with the main composition, namely myristicin (15.92%), b-phellandrene (14.35%), limonene (11.20%), b-pinene (10.81%), and a-pinene (8.59%). The ethanol extract of nutmeg leaf contains 37 components with the main composition being myristicin (7.64%), 1,1,3,3,5,5,7,7,9,9,11,11,13,13-tetradecamethylheptasiloxane (7.14%), 2,2-dimethyl-1-decanol (7.12%), bis(2-ethylhexyl) phthalate (5.55%), and 9-dodecane-1-al (4.63%). The antibacterial activity test of nutmeg oil was carried out using the good diffusion method. The inhibitory power of nutmeg oil and ethanol extract of nutmeg leaves against S. aureus bacteria were 20.31 mm and 23.56 mm, while against P. aeruginosa bacteria were 11.79 mm and 8.86 mm, respectively.
Chemicals Identification in The Ethyl Acetate Fraction and The Antioxidant Activity from Calabash Seed (Cresentia cujete) Extract Gaspersz, Nelson; Kapelle, Imanuel B. D.; Hattu, Nikmans; Sangadji, Insun; Arpipi, Henderika S. S.
HAYATI Journal of Biosciences Vol. 31 No. 6 (2024): November 2024
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.31.6.1144-1153

Abstract

Calabash (Crescentia cujete) is a plant that grows in tropical climates and is scattered and easily found in Indonesia. Calabash is also known to contain several secondary metabolite compounds that have the potential as an antioxidant. This research is purposed to identify phytochemical compounds in calabash fruit seed extract, identify compounds based on the result of LC-MS, and know the antioxidant activity of calabash fruit seeds. The samples were extracted using the maceration method, and then phytochemical screening, LC-MS tests, and antioxidant tests were continued using the DPPH method. This research showed that the ethanol extract of calabash seed positive contains saponin, flavonoids, and triterpenoid compounds. Ethyl acetate extract of calabash seed contains flavonoids, alkaloids, and triterpenoids. The n-hexane extracts positively contain tannins, alkaloids, and steroids. The values of antioxidant activity of ethanol, ethyl acetate, and n-hexane extracts were IC50 = 29.7883, 7.219, and 848.712 ppm (µg/ml), respectively. Ethyl acetate extract as the best antioxidant activity was then tested with LC-MS, and results obtained from 26 compounds with the composition of the largest % area is convolvidine (11.277%), coumaroylquinic acid (8.290%) and taxchinin G (8,233%). They showed that calabash fruit seed extract has very strong antioxidant activity, with the best activity being the ethyl acetate extract of calabash fruit seed.
Demo Sains Sederhana dan Aman Kepada Siswa SMP Negeri 7 Maluku Tengah Hasanela, Nurani; Souhoka, Fensia Analda; Kapelle, Imanuel B.D; Rosmawaty, Rosmawaty
Innovation for Community Service Journal Vol 1 No 2 (2023): Oktober 2023
Publisher : Department of Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/icsj.v1i2.9778

Abstract

Pembelajaran sains meliputi mata pelajaran IPA dan Matematika. Pada umumnya kedua mata pelajaran ini dianggap sulit oleh kebanyakan peserta didik (siswa). Banyak yang menganggap hanya orang-orang yang pintar yang belajar sains. Padahal setiap hari kita senantiasa bertemu dengan sains. Berdasarkan fenomena inilah, diperlukan suatu wadah yang dapat memunculkan rasa suka dan cinta terhadap sains, yaitu dengan cara membentuk suatu program pengenalan sains melalui demo sains khususnya eksperimen kimia sederhana. Secara umum, tujuan kegiatan pengabdian kepada masyarakat dengan tema: “Demo Sains Sederhana dan Aman Kepada Siswa SMP Negeri 7 Maluku Tengah” ditekankan untuk menumbuhkan minat siswa dalam mendalami sains. Melalui kegiatan ini, diharapkan dapat menjadikan seluruh siswa untuk mencintai sains. Oleh sebab itu, kegiatan-kegiatannya dirancang secara atraktif dan edukatif agar siswa merasa senang dan kegiatan-kegiatannya juga memuat materi percobaan sains dengan metode yang menyenangkan dan menakjubkan, dengan alat dan bahan sederhana, aman dan mudah didapat. Eksperimen kimia sederhana yang dilakukan meliputi percobaan balon gas, identifikasi asam basa, lem sederhana dan Telur ajaib. Kegiatan ini juga dimaksudkan untuk memperkaya pengetahuan dan keterampilan siswa tentang sains di sekolah.
Co-Authors Agus Oman Sudrajat Andri Yanto Andriyanto Andriyanto Andriyanto Arpipi, Henderika S. S. Baharudin, Indah Bambang Gunadi Bambang Gunadi Bambang Gunadi Bijang, Chaterina Manukpadang Birahy, Deford Cristy Catherina M. Bijang Dessy Rosye Rooy Dewi Sri Djumali Mangunwidjaja Djumali Mangunwidjaja Djumali Mangunwidjaja DOMINGGUS MALLE Elisabeth Sihasale Fauzan Saleh Fensia Analda Souhoka Gainau, Paskanova Christi Gaspersz, Nelson Hanoch J Sohilait Hanoch Julianus Sohilait Hasanela, Nurani Hattu, Nikmans Hellna Tehubijuluw Hellna Tehubijuluw I Wayan Sutapa Insun Sangadji Ivonne Telussa Laratmase, Marsela S. Lilipaly, Reggi Austin Linda Lattuputty Lopulalan, Flourence M. Syamsul Maarif Maahury, Mirella Fonda Mauhurry, Mirella Fonda Meika Syahbana Rusli Meike L. Haluruk Meillisa Carlen Mainassy Moylani Teddy Muh. Nurdin Neite, Prisca Nelcy Netty Siahaya Nini Munirah Renur Pattiasina, Bethsy Jane Pattiasina, Priska Marisa Pentury, Evangeline Priska Marisa Pattiasina Priska Marissa Pattiasina R, Irwan Rahayu Rahayu Rahayu Rahayu Rante, Natalia C.D. Rosmawaty Rosmawaty Harahap Sabirin Matsjeh Salmawati, Mimi Sekewael, Serly Jolanda Semuel S. Pada Serly J. Sekewael Serly J. Sekewael Shielda Natalia Joris Shielda Natalia Joris Siahaya, Antho Netty Sohilait, H. Sohilait, Mario Rowan Stephanie P. Sohilait Tun Tedja Irawadi Tun Tedja Irawadi Waas, Alsye Walla, Ainun Maharani Wasmen Manalu Yandra Arkeman Yusthinus T. Male Zainal Alim Mas'ud Zainal Alim Mas'ud Zainal Alim Mas'ud