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All Journal Alotrop Jurnal Pendidikan dan Ilmu Kimia BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Al-Kimia JMM (Jurnal Masyarakat Mandiri) Journal of Appropriate Technology for Community Services Jurnal Jejaring Matematika dan Sains Yumary: Jurnal Pengabdian kepada Masyarakat Jurnal Insan Farmasi Indonesia Jurnal Ilmiah Berkala: Sains dan Terapan Kimia Nanggroe: Journal Of Scholarly Service Nanggroe: Journal of Scholarly Service Jurnal Bioteknologi & Biosains Indonesia (JBBI) Jurnal Penelitian Hasil Hutan
Oksal, Efriyana
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The Potential of Jackfruit Wood as Activated Carbon for Adsorption of Heavy Metal Mercury (Hg) through Pyrolysis Method Zimon Pereiz; Chuchita; Oksal, Efriyana; Maya Sylvani, Miranti; Irawan, Ahmad; Pebriyanto, Yunus; Hairiah, Rusliananur; Eka Jaya Prastiti, Arini; Berlisnora Dasilva, Caroline; Anatasya, Violina; Prisnanda, Risky
Al-Kimia Vol 13 No 1 (2025): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

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Abstract

Water pollution caused by heavy metal mercury is a serious problem today. This study aims to utilise jackfruit wood waste as a natural adsorbent in overcoming the problem of water pollution due to heavy metal mercury. The methods in this research include jackfruit wood preparation, hydrochar synthesis through pyrolysis, hydrochar activation, wastewater preparation, batch adsorbent optimum conditions, and dynamic adsorption process (Fixed-Bed Column). The results showed that the optimum adsorption condition was reached at 0.4 M HCl concentration, pH 3 and 80minutes contact time. The study also showed that the adsorption kinetics followed a second-order pseudo model with a rate constant of 1.712 x 10-2 g/mg.min. The research data also showed conformity with the Langmuir isotherm model, with an adsorption capacity of 63.036 mg/g. The results of this study prove that jackfruit wood waste is effectively used as raw material for making activated carbon for wastewater treatment applications in removing heavy metal mercury.
Isolation and Characterization of Amylolytic Bacteria From Peatlands Area in Central Kalimantan Nafisah, Zahrotun; Riana Dewi, Syahrani; Ayu Andhita, Naswa; Elya Resha, Enjel; Oksal, Efriyana; Ayu Pratika, Remi; Hermayantiningsih, Dwi
Al-Kimia Vol 13 No 1 (2025): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

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Peatlands in Central Kalimantan, Indonesia, are ecologically significant due to their acidic, organic-rich conditions, yet their microbial communities remain underexplored, particularly regarding their enzymatic potential. This study aimed to isolate and characterize amylolytic bacteria from peat soil collected at a depth of 143–150 cm in the LAHG CIMTROP area of Central Kalimantan. A total of 44 bacterial isolates were obtained using serial dilution and the gridding method. Screening for amylase activity identified isolate ENS31 as having the highest activity, shown by a clear halo on starch agar. ENS31 was further subjected to biochemical characterization and enzyme activity assays. The amylase enzyme exhibited optimal activity at pH 7 and 50°C, with a specific activity of 3.5 U/mg, and retained activity up to pH 12 (2 U/mg). These results indicate that ENS31 produces an enzyme stable in alkaline conditions despite originating from an acidic environment, demonstrating potential for industrial applications requiring pH and temperature-tolerant biocatalysts. This study contributes to understanding the functional diversity of peatland microbes and highlights tropical peat ecosystems as promising sources of novel enzymes.  
PELATIHAN PEMBUATAN LILIN AROMATERAPI DALAM PENINGKATAN KREATIVITAS SISWA SMAN 1 KASONGAN Oksal, Efriyana; Fatah, Abdul Hadjranul; Chuchita, Chuchita; Pereiz, Zimon; Fauzi, M. Zainuddin Lutfi; Komara, Nisa Kartika; Pangestika, Inten
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 2 (2025): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i2.29185

Abstract

Abstrak: Pelatihan pembuatan lilin aromaterapi memiliki peran penting dalam meningkatkan keterampilan praktis dan kreativitas siswa. Kegiatan ini bertujuan untuk meningkatkan kemampuan hardskill siswa dalam pembuatan lilin aromaterapi, sehingga mereka memiliki bekal keterampilan yang dapat diterapkan dalam kehidupan sehari-hari maupun sebagai peluang wirausaha. Metode pelatihan yang digunakan meliputi pemberian materi secara ceramah dan praktik langsung pembuatan lilin aromaterapi. Peserta kegiatan ini adalah 80 siswa/i dari SMAN 1 Kasongan. Diakhir kegiatan pelatihan dilakukan evaluasi dengan pengisian angket oleh peserta untuk menilai pemahaman dan keterampilan yang diperoleh selama pelatihan. Hasil evaluasi menunjukkan bahwa 81,25% peserta memahami metode pembuatan lilin aromaterapi, sedangkan 90% peserta mampu membuat lilin aromaterapi secara mandiri. Dengan demikian, pelatihan ini terbukti efektif dalam meningkatkan keterampilan praktis dan kreativitas siswa.Abstract: The aromatherapy candle-making training plays an important role in enhancing students' practical skills and creativity. This activity aims to enhance students' hard skills in making aromatherapy candles, so they have a set of skills that can be applied in daily life as well as entrepreneurial opportunities. The training methods used include lectures and hands-on practice in making aromatherapy candles. The participants of this activity are 80 students from SMAN 1 Kasongan. At the end of the training activities, an evaluation was conducted with participants filling out a questionnaire to assess the understanding and skills acquired during the training. The evaluation results show that 81.25% of the participants understand the method of making aromatherapy candles, while 90% of the participants are able to make aromatherapy candles independently. Thus, this training has proven effective in enhancing students' practical skills and creativity.
Sosialisasi dan Edukasi Bahaya Narkoba bagi Siswa-Siswi SMPN 4 Tewah, Kabupaten Gunung Mas, Provinsi Kalimantan Tengah Pereiz, Zimon; C, Chuchita; Oksal, Efriyana; Telaumbanua, Mesra Ratna Sari; Sabatini, Felly; J, Julia; Solla, Angelia; Catur Prasetyo, Debby; Hutabalian, Gracyela; A, Anjelika; H, Heja; Florensia, Ornella Arnia; Devianti, Gusnia; Apriyanti, Mauliya; Prayoga, Andika; Tundan, Arisumi Ir L; Dandy, Jonathan; A, Abdullah
Nanggroe: Jurnal Pengabdian Cendikia Vol 4, No 4 (2025): July 2025
Publisher : Yayasan Daarul Huda Kruengmane

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.16924367

Abstract

A community service activity entitled "Socialization and Education on the Dangers of Drugs for Students of SMPN 4 Tewah, Gunung Mas Regency, Central Kalimantan Province" was conducted as an early prevention effort against drug abuse among students. This outreach program aimed to provide a comprehensive understanding of the negative impacts of drugs from a health, social, educational, and legal perspective. The method used was interactive delivery of material through presentations, discussions, and question-and-answer sessions, enabling students to participate more actively and relate the knowledge gained to their daily lives. The results of the program demonstrated that it was well-run and effective. This was evidenced by a significant increase in student understanding based on pre- and post-test evaluations, with an understanding score of 94.8%. These findings demonstrate that the outreach and education on the dangers of drugs can positively contribute to raising student awareness of the importance of staying away from drugs. Thus, this activity serves not only as a learning tool but also as a strategic step in developing a healthy, productive, and integrated young generation.
Sosialisasi dan Edukasi Bahaya Narkoba bagi Siswa-Siswi SMPN 4 Tewah, Kabupaten Gunung Mas, Provinsi Kalimantan Tengah Pereiz, Zimon; C, Chuchita; Oksal, Efriyana; Telaumbanua, Mesra Ratna Sari; Sabatini, Felly; J, Julia; Solla, Angelia; Catur Prasetyo, Debby; Hutabalian, Gracyela; A, Anjelika; H, Heja; Florensia, Ornella Arnia; Devianti, Gusnia; Apriyanti, Mauliya; Prayoga, Andika; Tundan, Arisumi Ir L; Dandy, Jonathan; A, Abdullah
Nanggroe: Jurnal Pengabdian Cendikia Vol 4, No 4 (2025): July 2025
Publisher : Yayasan Daarul Huda Kruengmane

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.16924367

Abstract

A community service activity entitled "Socialization and Education on the Dangers of Drugs for Students of SMPN 4 Tewah, Gunung Mas Regency, Central Kalimantan Province" was conducted as an early prevention effort against drug abuse among students. This outreach program aimed to provide a comprehensive understanding of the negative impacts of drugs from a health, social, educational, and legal perspective. The method used was interactive delivery of material through presentations, discussions, and question-and-answer sessions, enabling students to participate more actively and relate the knowledge gained to their daily lives. The results of the program demonstrated that it was well-run and effective. This was evidenced by a significant increase in student understanding based on pre- and post-test evaluations, with an understanding score of 94.8%. These findings demonstrate that the outreach and education on the dangers of drugs can positively contribute to raising student awareness of the importance of staying away from drugs. Thus, this activity serves not only as a learning tool but also as a strategic step in developing a healthy, productive, and integrated young generation.
Co-Authors A, Abdullah A, Anjelika Ahmad Irawan, Ahmad Alpian Anatasya, Violina Apriyanti, Mauliya Ariska, Risya Ayu Andhita, Naswa Ayu Pratika, Remi Ayu, Yulia Agustina Ayuchecaria, Noverda Berlisnora Dasilva, Caroline C, Chuchita Catur Prasetyo, Debby Chuchita Chuchita, Chuchita Dandy, Jonathan Devianti, Gusnia Dewi, Sintia Ayu Eka Jaya Prastiti, Arini Elya Resha, Enjel Fatah, Abdul Hadjranul Fauzi, M. Zainuddin Lutfi Florensia, Ornella Arnia Gloria, Meilina H, Heja Hairiah, Rusliananur Hendrik Segah, Hendrik Hermayantiningsih, Dwi Hutabalian, Gracyela Ilham Maulana Indri Aprilia, Indri J, Julia Karelius, Karelius Kibtiyah, Maryatul Komara, Nisa Kartika Lawrence, Yoel Liswara Neneng Manalu, Mely Grace Manalu Marvin Horale Pasaribu Maulida, Maulida Maya Sylvani, Miranti Mokhamat Ariefin Nafisah, Zahrotun Natalia Sri Martani Ngazizah, Febri Nur Nisa Kartika Komara Pangestika, Inten Pebriyanto, Yunus Prayoga, Andika Prisnanda, Risky Retno Agnestisia Riana Dewi, Syahrani Riansyah, Irza Rizkita, Aden Dhana Sabatini, Felly Sari, Nopita Tamara Seda, Ananda Putri Seprianto, Seprianto Sianturi, Dody Jhonatan Wilfiez Sidauruk, Christina Situmorang, Larissa Kristina T.T. Solla, Angelia Sylvani, Miranti Maya Tampubolon, Mulani Jeni Lestari Telaumbanua, Mesra Ratna Sari Tundan, Arisumi Ir L Wahyu Supriyati Wiriatmaja, Nuraini Ulya Yanetri Asi Nion, Yanetri Asi Zadrax, Adellino Zimon Pereiz