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All Journal Jurnal Rekayasa Proses Reaktor JURNAL INTEGRASI PROSES IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Journal of Science and Applicative Technology Praxis : Jurnal Sains, Teknologi, Masyarakat dan Jejaring Jurnal Rekayasa Proses International Journal for Educational and Vocational Studies JPKMI (Jurnal Pengabdian Kepada Masyarakat Indonesia) International Journal of Engineering, Science and Information Technology Jurnal Pengabdian Kepada Masyarakat Abdi Putra Chemical Engineering Journal Storage (CEJS) Jurnal Teknologi Kimia Unimal Jurnal Malikussaleh Mengabdi Jurnal Rekayasa Proses Jurnal Bahan Alam Terbarukan Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN) Proceedings of Malikussaleh International Conference on Multidisciplinary Studies (MICoMS)
Meriatna Meriatna
Universitas Malikussaleh
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ISOLASI TANIN DARI DAUN KETAPANG (TERMINILIA CATAPPA) SEBAGAI BIOSORBEN LOGAM TIMBAL PB2+ DENGAN AKTIVATOR NAOH Dwi Dear Asrianda Damanik; Meriatna; Masrullita; Wiza Ulfa Fibarzi; Raudhatul Ulfa; Zulmiardi
Chemical Engineering Journal Storage (CEJS) Vol. 5 No. 06 (2025): Chemical Engineering Journal Storage (CEJS)-December 2025
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v5i06.23769

Abstract

Biosorben merupakan material padat yang pada umumnya berpori, yang digunakan untuk menyerap molekul adsorbat dalam suatu proses adsorpsi. Penelitian ini bertujuan untuk mengisolasi tanin dari daun ketapang (Terminalia catappa) dan mengkaji efektivitasnya sebagai biosorben dalam penyerapan logam berat timbal (Pb²⁺) dengan aktivasi menggunakan NaOH. Proses aktivasi dilakukan dengan merendam serbuk tanin dalam larutan NaOH 0,1 N selama 24 jam, kemudian dianalisis karakteristik biosorben menggunakan FTIR dan SEM untuk mengetahui gugus fungsi aktif serta morfologi pori-pori. Variabel bebas yang diuji adalah massa biosorben (0,2; 0,4; 0,6; 0,8 dan 1 gram) dan waktu kontak (30, 45, 60, 75, 90 menit), sementara variabel terikat meliputi kapasitas penyerapan, persen penyerapan, dan isoterm adsorpsi. Analisis konsentrasi Pb²⁺ dilakukan menggunakan Atomic Absorption Spectroscopy (AAS). Hasil menunjukkan bahwa peningkatan massa biosorben dan waktu kontak meningkatkan efisiensi penyerapan Pb²⁺ hingga mencapai 99,45% dengan kapasitas maksimum 12,20 mg/g pada massa 1 gram dan waktu 90 menit. Kurva isoterm Langmuir (R² = 0,9999) lebih sesuai menggambarkan mekanisme adsorpsi dibandingkan isoterm Freundlich (R² = 0,9149), menandakan adsorpsi berlangsung secara monolayer pada permukaan homogen. Aktivasi kimia dengan NaOH berhasil meningkatkan luas permukaan dan porositas biosorben yang mendukung penyerapan logam Pb²⁺. Studi ini menegaskan bahwa tanin daun ketapang yang teraktivasi secara kimia merupakan biosorben yang efektif dan potensial untuk aplikasi pengolahan limbah cair mengandung logam berat.
Bioscaffold Chitosan-Alginate For Tissue Engineering Applications Suryati Suryati; Puspita S S; Meriatna Meriatna; Azhari Azhari
Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN) Vol. 1 (2018): Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN)
Publisher : Faculty of Engineering, Malikussaleh University

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Abstract

This study aims atexamining the condition of chitosan/alginate scaffold processing for tissue engineering applications. Chitosan 90.2% DD and Ca-alginate were both dissolved in 1% acetic acid and varied by volume ratios (v/v) (80:20, 70:30, 50:50, 30:70, 20:80) . The scaffold is printed to a glass mold, allowed to stand at room temperature for 24 hours, and thenheated in an oven at a temperature of 40oC for 48 hours. The outcome of this research product was in form of non-transparent thin sheets. FTIR test results revealed a number of peaks which indicated a certain level ofinteraction between chitosan, and Ca-alginate. The thermal degradation test established that there is a reduction in the melting point of the scaffold when there is a higher concentration in the material. It also indicated that there is an increase in the decomposition point in line with an increase in chitosan. Scaffold samples are physically superior as regards the easy handling of wet conditions (fixed shape and not easily torn), and providesunexpected results in aspects of biocompatibility.
Preparation of Bioethanol from Pineapple Peel (ananas comosus L. Mer) Waste with the Addition of Hydrochloric Acid and Citric Acid Catalysts Nur Khairani; Rizka Mulyawan; Meriatna; Agam Muarif; Syamsul Bahri; Iqbal Kamar
Proceedings of Malikussaleh International Conference on Multidisciplinary Studies (MICoMS) Vol. 4 (2024): Proceedings of Malikussaleh International Conference on Multidisciplinary Studies (MI
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/micoms.v4i.948

Abstract

Bioethanol is ethanol derived from biological sources. Bioethanol can be produced from plants that contain many starch and cellulose compounds using the help of yeast activity. One of them is pineapple peel which can add a variety of basic materials for bioethanol production which is economical and easy to obtain. This study aims to analyze the effect of acid hydrolysis on glucose content, analyze the effect of fermentation time and the effect of yeast weight on bioethanol characteristics. This research has been done before and only focused on one catalyst. What has never been done is comparing the two catalysts. The research was conducted using hydrolysis fermentation and distillation using hydrochloric acid and citric acid catalysts with yeast weight variation of 12, 15, and 17 grams, fermentation time variation of 2, 3, 4, and 5 days. In this research, glucose test, density analysis, yield analysis, and GC-MS were conducted. The results of this study showed that the best results in the treatment of hydrochloric acid catalyst at a yeast weight of 15 grams, and obtained glucose levels of 6.90% for hydrochloric acid and 5.10% for citric acid, density test obtained the highest results at a yeast weight of 15 grams 4 days 0.8288 gr / ml for hydrochloric acid catalyst and the lowest density obtained at a yeast weight of 17 grams 5 days 0, 8168 gr/ml, yield analysis obtained at the amount of 15 grams of yeast with a fermentation time of 14 days of 4.3536% in the treatment of hydrochloric acid catalyst and 3.8557% in the treatment of citric acid catalyst fermentation time of 3 days, GC-MS test showed that ethanol contained in the test sample.
Co-Authors AA Sudharmawan, AA Abrar, Muhammad Ifan Abubakar Dabet Adriyan Jondra Afifa Luthfia Agam Muarif Ahmad Alwi Hasibuan Alifnur Alifnur Amri Aji Amri Aji, Amri Amri Amri Ananda, Dhea Riski Andrie Kurniawan Indra Anisma Fahmi Anisyah Padang Anita Sari Ferani Annisa Aulia ARDIANSYAH ARDIANSYAH Ariski Saina Ariski Saina Asnadia Asnadia Aulia Fahri Aulia, Muhammad Rifki Aulia, Yeni Auliani Auliani Auliani Auliani, Auliani Ayu Sutia Amanda Azhari Azhari Azhari Azhari Chairunnisa Chairunnisa Chalisna Wildani Cut Khairunnisa Cut Mauliza Utary Daud, Eva Darnila Dina Nasution, Zukhrufi Dion Aidil Putra dwi ayu lestari, dwi ayu Dwi Dear Asrianda Damanik Eddy Kurniawan Edy Kurniawan Efri Marnelisa Eka Intan Kumala Putri Eka Sri Astuti Eni Suryani Eva Diana Evana Evana Faisal Faisal Faisal Faisal Faisal Faisal Faisal Fajar Sidiq Seregar Fajar, Aidil fatimah Fatimah Fatnia, Fatnia Ferri Safriwardy Fibarzi, Wiza Ulfa Fikri Hafita Fikri Hasfita Fitria, Lisa Fitriani Fitriani Frandika Darma Ginting, Ledy Mahara Gusti Indah Sari Hajijah Hajijah Halimah, Mustika Ridhatul Hanie, Nawardah Hanif, Hanif Haslina Haslina Ibrahim, Ishak Iqbal Kamar Iqbal Kamar Iqbal Kamar Ishak Ibrahim Ishak Ishak Ishak Ishak Ishak Ishak Jalaluddin Jalaluddin Jalaluddin Jalaluddin Jalaluddin Kamar, Iqbal Khairunnisa Kurniawan, Meutia Laksita Ika Paksi Leni Maulinda Leni Maulinda, Leni Leni, Maulinda Lidya Permata Lestari Lidya Permata Lestari Lis Ayu Widari, Lis Ayu Lisa Andriani Lukman Hakim Lukman Hakim Lukman Hakim Luthfi Mughni Anisa Haryono Luthfi Mughni Anisa Haryono Lutvia, Faiza Mahyuni Marito Harahap Marlina Marlina Maryana Maryana Maryana Maryana, Maryana Maryanti Maryanti Masrullita Masrullita Masrullita Masrullita, M Masrullita, Masrullita Maulana, Muhammad Zikri Mawaddah Fitria Melan Amanah, Ananda Mhd Azrin Muazzinah Muazzinah Muhammad Fazlunnazar Muhammad Muhammad Muhammad Muhammad Muhammad Safrijal Muhammad Sayuthi Muhammad Zakaria Muhammad, Muhammad Mulyawan, Rizka Munawar Khalil Mutia Sukma Nadia Prisca Putri Nadrakhilla, Yayang Narul ZA Narul ZA Nasrul ZA Nasrul ZA Nasrul ZA, Nasrul Nasrul Za, Nasrul Za Nasution, Fahrizal Nia Afriani Nia Sagita Lestari Novi Sylvia Nur Asiah Indah Rahayu Nur Khairani Nurdin Nurdin Nurlaila, Rizka Nurlian Nurlian Nurlian Octaviani Pasaribu Panjaitan, Muhammad Ishak Idrus Pradesti, Salsa Prasatia, Ridha Purwoko, Agus Puspita S S Putri Sara Fhariza R.A Nita Rosalinda Muttaqin Rahma Yanti Rahmadhani, Rahmadhani Raihan Putri Raudhatul Ulfa Reza Abdillah Harahap Reza Dwi Fani Rianda, Rizki Rina Afriani Rina Lestari Rizka Mulyawan Rizka Mulyawan Rizka Mulyawan Rizka Nurlaila Rozanna Dewi Safriani, Siti Widya Safrida, Riana Safwan Azlani Salim, Muhammad Yahdi Salsabil, Safyra Qathrunnada Samsul Bahri Sanda Mulia Utari Sari, Riska Kumala Sinaga, Ahmad Roihan Sinaga, Selvi Sundari Sinta Morina Siswahyudianto Sitorus, Ika Pratiwi Berliana Sofiyani, Nurwardina Sofyan Sofyan Sofyan, Diana Khairani Sri Awalin Marpaung Sulahatun, Sulhatun Sulhatun Sulhatun Suri Atika Suryani Suryani Suryati Suryati Suryati Suryati Suryati Suryati Suryati Suryati Syafira Dara Syamsul Bahri Syamsul Bahri Syamsul Bahri Syarifah Yulisa Syebrina, Annisa Syukriah Syukriah, Syukriah Tasya Maidayanti Tata Tirani Trisna Trisna, Trisna Ulfa, Raudhatul Veithzal Rivai Zainal Wiza Ulfa Fibarzi Wiza Ulfa Fibarzi Wusnah Wusnah Wusnah, Wusnah Yani, Firda Tirta Yudistira Yudistira Zainuddin Ginting Zulmiardi, Zulmiardi Zulnazri, Z Zuraida Zuraida