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All Journal JURNAL PENELITIAN SAINTIKA Jurnal Pendidikan Kimia (JPKim) Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Jurnal Pengabdian Kepada Masyarakat (JPKM) Tabikpun CHEDS: Journal of Chemistry, Education, and Science Madani: Multidisciplinary Scientific Journal JS (Jurnal Sekolah) Chemedu: Jurnal Ilmiah Pendidikan Kimia Journal Of Carbazon
Junifa Layla Sihombing, Junifa Layla
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Workshop Produksi Kopi Mangrove di Desa Tanjung Rejo Roza, Destria; Bunawan, Wawan; Syarifuddin, Syarifuddin; Sihombing, Junifa Layla
Jurnal Pengabdian Kepada Masyarakat (JPKM) TABIKPUN Vol. 5 No. 3 (2024)
Publisher : Faculty of Mathematics and Natural Sciences - Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpkmt.v5i3.178

Abstract

Desa Tanjung Rejo memiliki Hutan Mangrove (bakau) yang cukup luas. Salah satu tanaman bakau yang terkenal adalah adalah bakau merah (Rhizopora stylosa). Ekstrak bakau merah menunjukkan efek antioksidan, antibakteri, antikanker, dan antidiabetes, serta aktivitas sitotoksik. Tujuan dari kegiatan ini adalah untuk meningkatkan pemahaman masyarakat tentang cara pembuatan kopi mangrove, sebagai upaya dalam mengoptimalkan potensi lokal yang ada di desa. Metode pelaksanaan kegiatan melalui penyuluhan dan pelatihan tentang kandungan dan metode pembuatan kopi mangrove. Adapun hasil kegiatan pelatihan pembuatan kopi mangrove ini, 93 % peserta mengatakan bahwa kegiatan ini meningkatkan pengetahuan dan keterampilan. Seluruh peserta (100%) berniat untuk untuk mengembangkan usaha dibidang kuliner dan 93% darinya memperkirakan kopi mangrove dapat meningkatkan usaha kuliner di wilayah wisata mangrove Desa Tanjung Rejo.
The Effect of E-Module on Activity and Learning Outcomes on Electrolyte and Nonelectrolyte Solutions Damanik, Nova; Riris, Ida Duma; Sitorus, Marham; Sihombing, Junifa Layla; Syafriani, Dewi
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol. 5 No. 2 (2023): OCTOBER 2023 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v5i2.54922

Abstract

This research aims to determine activities, learning outcomes and the correlation between activities and student learning outcomes taught using the Project Based Learning (PjBL) learning model assisted by e-modules for class X SMA on electrolyte and non-electrolyte solutions. The population in this study were students of class This research uses test and non-test instruments in the form of student learning activity observation sheets which have been tested and are valid. The data obtained were tested for normality and homogeneity. Based on the results of data processing that has been analyzed, there are learning outcome values tcount = 9.714 and ttable = 1.66, the activity obtained is tcount = 6.069 and ttable = 1.66. Where tcount>ttable shows that Ha is accepted and H0 is rejected, so it can be concluded that there is an influence of the Project Based Learning (PjBL) learning model assisted by e-modules for class X SMA on electrolyte and non-electrolyte solutions. The correlation test was carried out to determine the significant correlation between activities and student learning outcomes. The research results show that rcount > rtable (0.929 > 0.329) so H0 is rejected. Thus, there is a significant correlation between activities and student learning outcomes assisted by e-modules for class X SMA on electrolyte and non-electrolyte solutions.
Optimization of the upgrading process of bio-oil from palm fronds: The effect of temperature, catalyst mass ratio, and reaction time Sihombing, Junifa Layla; Pulungan, Ahmad Nasir; Simanjuntak, Janter Pangaduan; Hasibuan, Muhammad Irvan; Efiyanti, Lisna; Rahayu, Rahayu; Audi, Ajeng Asri; Hadi, Muhammad
Jurnal Pendidikan Kimia Vol. 16 No. 1 (2024): April
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpkim.v16i1.52556

Abstract

The lignocellulosic component contained in palm frond waste has potential as an alternative fuel by converting it into bio-oil through a pyrolysis process. However, bio-oil has poor quality when compared to conventional fuels. Therefore, the Hydrodeoxygenation (HDO) process has been widely developed as a promising way to improve the poor physicochemical properties of bio-oil. In this study, a bimetallic CuO-ZnO catalyst loaded on mordenite zeolite was used as a catalyst for HDO bio-oil from palm fronds. Optimization efforts were made on several parameters that affect the reaction including temperature, catalyst mass, and reaction time. This study aims to improve the quality of bio-oil and determine the effect of variations in reaction parameters on the physicochemical properties of upgraded bio-oil. The optimum condition found was the HDO process with a catalyst mass of 3.5 wt% at 325 °C for 120 min. The physicochemical properties of bio-oil after the upgrading process were successfully improved from those of raw bio-oil. The result is a decrease in water content and total acid number, an increase in C and H content accompanied by a reduction in oxygen content with a degree of deoxygenation reaching 72.9%, and an increase in higher heating value (HHV).
Co-Authors ., Asmidi ., Nurrnalis Agus Kembaren Ahmad Nasir Pulungan Amdayani, Susilawati Andi Syahputra, Ricky Audi, Ajeng Asri Damanik, Nova Dewi Syafriani, Dewi Fildzah, Qisthina H, Herlinawati Hasibuan, Muhammad Irvan Herlinawati Herlinawati Ida Duma Riris Jasmidi ., Jasmidi Lisna Efiyanti malis, Nur Marham Sitorus midi, Jas Muhammad Hadi Rahayu Rahayu Rahma, Fuad Dea Roza, Destria Salsabila, Fuaddinda Putri Sany, Putri Tiara Simanjuntak, Janter Pangaduan Syarifuddin Syarifuddin Tasyadri, Widia Trisunaryantr, Wega Triyono . Wahyu Nugraha, Asep Wawan Bunawan