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All Journal Eksergi: Chemical Engineering Journal Bioeksperimen: Jurnal Penelitian Biologi Jurnal Bioteknologi & Biosains Indonesia (JBBI) Al-Kimia Journal of Research and Technology SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan CHEESA: Chemical Engineering Research Articles WIDYA LAKSANA JPM PAMBUDI Jurnal Pengabdian UNDIKMA Bioscientist : Jurnal Ilmiah Biologi Abdimas Awang Long: Jurnal Pengabdian dan Pemberdayaan Masyarakat Jurnal Pijar MIPA KOLONI JPM Pambudi Edubiotik : Jurnal Pendidikan, Biologi dan Terapan Agroindustrial Technology Journal (ATJ)
Mohammad Arfi Setiawan
Universitas PGRI Madiun
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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The Effect of Temperature on Porang (Amorphophallus oncophyllus) Moisture Content and Drying Rate Using a Tray Dryer Karina Kusuma Wardani; Nur Ihda Farikhatin Nisa; Mohammad Arfi Setiawan; Erlinda Ningsih
Agroindustrial Technology Journal Vol. 7 No. 3 (2023): Agroindustrial Technology Journal [ATJ]
Publisher : Universitas Darussalam Gontor

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Porang (Amorphophallus oncophyllus) is a tuber plant originating from Indonesia. This plant is less well known compared to other tuber plants. Porang has various important uses, especially in the food and industrial sectors. Indonesia ranks 5thas the largest supplier of porang in the world. Drying porang is an important stage in the post-harvest processing of porang plants. The drying process must be done carefully so as not to damage the quality of the porang. The right drying method, appropriate drying temperature, and humidity control must be considered to achieve optimaldrying results. A tray dryer is a drying device that contains shelves to store the material being dried. Drying with this tool uses hot air gusts that are passed over the material being dried. The aim of this research is to determine the effect of drying temperature variations on the moisture content and drying rate of porang using a laboratory-scale tray dryer. Drying is carried out on stick-shaped porang with a thickness of 1 cm and a total weight of 125 grams. The temperature variations in this drying are 50OC, 60OC, and 70OC, with a drying air speed 1 m/s. The research results show that the higher the drying air temperature in the tray dryer, the lower the moisture content in the porang and the faster the drying rate. When the drying air speed and porang thickness are constant, the optimal porang drying temperature is 70OC
Pelatihan Penggunaan Aplikasi Kimia Chem Bio Draw dan Hyperchem Untuk Membangun Dasar Pemahaman Visual Struktur Senyawa Kimia Kepada Mahasiswa Universitas PGRI Madiun Ade Trisnawati; Dyan Hatining Ayu Sudarni; Ahmad Misfa Kurniawan; Mohammad Arfi Setiawan; Nabila Mutiara Sani
Abdimas Awang Long Vol. 9 No. 1 (2026): Januari, Abdimas Awang Long
Publisher : Sekolah Tinggi Ilmu Hukum Awang Long

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56301/awal.v9i1.1885

Abstract

Materi ikatan kimia merupakan salah satu materi yang penting untuk dipelajari oleh mahasiswa Teknik Kimia. Namun, mahasiswa seringkali menghadapi kesulitan dalam memahami struktur senyawa kimia. Hal ini disebabkan oleh keterbatasan dalam menggambar struktur dan reaksi kimia, serta memprediksi sifat dan reaktivitas molekul. Selain itu, kurangnya keterampilan berbasis teknologi dalam bidang ini juga menjadi masalah. Aplikasi kimia seperti Chem Bio Draw dan Hyperchem sangat penting untuk memvisualisasikan, memanipulasi, dan menganalisis struktur senyawa kimia dengan presisi tinggi, namun banyak mahasiswa belum familiar dengan penggunaannya. Pelatihan ini bertujuan untuk meningkatkan pemahaman visual mahasiswa terhadap struktur senyawa kimia dan membekali mereka dengan keterampilan menggunakan aplikasi Chem Bio Draw dan Hyperchem. Kegiatan pengabdian masyarakat ini melibatkan mahasiswa Teknik Kimia dan Pendidikan Fisika yang telah menempuh mata kuliah Kimia Dasar. Pelatihan ini mencakup lima tahapan utama yaitu identifikasi masalah melalui pre-test, pengumpulan data, pengumpulan bahan materi, pelaksanaan sosialisasi dan pelatihan, serta evaluasi dengan post-test dan monitoring. Hasil pre-test menunjukkan bahwa hanya 15,3% peserta yang memiliki pemahaman awal tentang aplikasi Chem Bio Draw dan Hyperchem. Setelah sosialisasi dan pelatihan, terjadi peningkatan signifikan pada hasil post-test, di mana 71% peserta menunjukkan pemahaman yang baik mengenai aplikasi dan cara penggunaannya untuk mengolah data serta membuat permodelan molekul. Peningkatan pemahaman sebesar 56,5% dari pre-test ke post-test ini mengindikasikan bahwa kegiatan pelatihan efektif dalam meningkatkan wawasan dan kemampuan mahasiswa dalam penggunaan aplikasi kimia tersebut. Secara keseluruhan, pelatihan ini dapat membantu mahasiswa mengatasi kesulitan dalam pemahaman struktur senyawa kimia dan meningkatkan keterampilan mereka dalam menggambar, memprediksi sifat molekul, serta memanfaatkan teknologi dalam kimia. Kegiatan ini dapat menjadi model dasar untuk kegiatan serupa di masa mendatang.
Formulasi dan Karakterisasi Sabun Batang Berbasis Minyak Kelapa dan Olive Oil dengan Penambahan Minyak Atsiri Bunga Mawar (Rosa hybrida) sebagai Implementasi Prinsip Green Chemistry Jihan Zulfa Nabila; Dyan Hatining Ayu Sudarni; Mohammad Arfi Setiawan
KOLONI Vol. 5 No. 3 (2026): SEPTEMBER 2026
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/koloni.v5i3.1230

Abstract

This study aimed to formulate and characterize bar soap based on coconut oil and olive oil with the addition of rose essential oil (Rosa hybrida) as an implementation of green chemistry principles. Essential oil was extracted from fresh and dried rose flowers (75 g and 100 g, four replications each) using the Soxhlet method with n-hexane solvent, followed by simple distillation. The best essential oil (fresh flowers, 100 g) was formulated into three soap variations: F1 (100% coconut oil), F2 (100% olive oil), and F3 (50:50 combination), each with 5 mL essential oil added. Characterization included organoleptic, pH, foam stability, antibacterial activity against Staphylococcus aureus and Escherichia coli (well diffusion method), and hedonic tests by 55 panelists. Dried flowers produced a larger oil volume (average 8.8 mL) than fresh flowers (2.45 mL), while fresh flowers produced a sharper aroma. All formulas met SNI 3532:2021 with pH 9.65–10.61. The highest foam stability was achieved by F1 (95.65%), followed by F3 (89.47%) and F2 (87.50%). Antibacterial activity of all formulas was classified as weak (inhibition zones of 1.61–3.11 mm). F3 was the most preferred formula, with the highest estimated selling price (IDR 4,000). The application of green chemistry is reflected in the use of renewable raw materials, relatively safe processes, and biodegradable products.
Co-Authors Ahmad Misfa Kurniawan Andri Wahyu Utomo Ardista, Syahlum Alvina Brilian Gema Morentera Cicilia Novi Primiani Cicilia Novi Primiani Cicilia Novi Primiani Cicilia Novi Primiani Desi Kusumawati Dwi Rosita Sari Dyan Hatining Ayu Sudarni Erlinda Ningsih Erlinda Ningsih Febriyandhi Yahya Febriyandhi Yahya I Wayan Dasna Istiqomah, Lin Jihan Zulfa Nabila Karina Kusuma Wardani Karina Kusuma Wardani Lukas Susanto Maritha, Vevi Mita Dewi Retnoningrum Mita Dewi Retnoningrum Mohammad Wildan Habibi, Mohammad Wildan Nabila Mutiara Sani Novitaningrum, Elis Nur Ihda Farikhatin Nisa Nur Ihda Farikhatin Nisa Pujiati Pujiati , Pujiati Puri Ratna Kartini Resa Ragil Andika Retnoningrum, Mita Dewi Retnoningrum, Mita Dewi Rivera, Alice Tonido Roy Putra Siti Marfuah, Siti Sudarni, Dyan Hatining Ayu Trio Ageng Prayitno Trisnawati, Ade Ulfa, Risa Munika