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All Journal Jurnal Teknologi Industri Pertanian Rekayasa Sipil Jurnal Riset Kimia Jurnal Litbang Industri Jurnal Hasil Penelitian Industri Jurnal Serambi Engineering Indonesian Journal of Chemical Analysis (IJCA) Jurnal Pengabdian Masyarakat: Darma Bakti Teuku Umar Jurnal Teknologi Kimia Unimal Jurnal Litbang Industri Prosiding Seminar Nasional Universitas Serambi Mekkah Leuser Journal of Environmental Studies Jurnal Malikussaleh Mengabdi PESARE: Science and Engineering Service Journal Serambi Engineering JURNAL REKAYASA KIMIA & LINGKUNGAN Jurnal Bahan Alam Terbarukan Nawadeepa: Jurnal Pengabdian Masyarakat
Medyan Riza
Universitas Syiah Kuala
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The Performance and Characterization of Biodegradable Plastic from Tapioca Starch: Effect of Modified Chitosan Ernita, Lia; Riza, Medyan; Syaubari, Syaubari
Jurnal Rekayasa Kimia & Lingkungan Vol 15, No 1 (2020): Jurnal Rekayasa Kimia & Lingkungan (June, 2020)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v15i1.15441

Abstract

The performance and characterization of biodegradable plastic from tapioca starch was studied. Modified the chitosan was one of the ingredients for produce the biodegradable plastics. The produced biodegradable polastic were thin sheet plastic, elastic and transparent. The biodegradable plastic performance had tensile strength between 2,26-3.73 Mpa, elongation ranges from 17.24 to 76.76%, and water absorption ranges from 30.81-268.9%. In antioxidant analyze, apples are wrapped in plastic and had significant mechanical properties changes on 8th day.Morphology scanning result showed that in the chitosan-polyNIPAM there were no cavities may caused high hydrophilicity in the biodegradable plastic.
Characterization of Sago Starch-Based Biofoam with Corn Husk Fiber Filler Rozanna Dewi; Novi Sylvia; Zulnazri; Retnowulan, Sri Rahayu; Muarif, Agam; Fikri, Ahmad; Medyan Riza
Jurnal Bahan Alam Terbarukan Vol. 13 No. 2 (2024): December 2024 [Nationally Accredited Sinta 2]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v13i2.2209

Abstract

The use of biofoam is one of the ways to reduce plastic waste that pollutes the environment. In this research, we want to develop biofoam from sago starch as a basic ingredient with the addition of corn husk fiber filler and the addition of magnesium stearate which aims to improve mechanical characteristics, thermal, morphological, water absorption and biodegradabillity. Variations of corn husk fiber used were 45 g, 50 g, 55 g and 60 g, with variations in the concentration of NaOH solvent used for cellulose extraction were 3%, 5%, 7% and 9%. The mechanical characteristics (tensile strength) of the resulting biofoam range from 1.37 – 2.45 MPa. The chemical bonding of biofoam was seen through Fourier Transform Infrared Spectroscopy (FTIR) and showed that biofoam is hydrophilic which binds to water so that it is easily degraded by soil. Thermal characteristics were tested through Differential Scanning Calorimetry (DSC) and showed a melting point of 410.68oC at 45 g of fiber and 5% NaOH and a melting point of 410.86oC at 55 g fiber and 5% NaOH. Thermal stability was analyzed through Thermal Gravimetry Analysis (TGA) and the most thermally stable biofoam was biofoam with 45 g of corn husk fiber and 5% NaOH. The surface morphology test using a Scanning Electron Microscope (SEM) showed that the morphological structure of the corn husk fiber biofoam was uneven and there were bubbles on the surface of the biofoam. The water absorption test shows results between 5.72 – 14.43%. The lowest density test for biofoam is using 55 g fiber weight and 3% NaOH concentration, while the highest density is 60 g fiber weight and 9% NaOH concentration. The results of the biodegradability test showed that the biofoam decomposes completely within 40-45 days, the soil moisture factor greatly affects the rate of biodegradability.
Pengaruh Compatibilizer Polyvinyl Alcohol-graft-Maleic Anhydride (PVA-g-MAH) terhadap Karakteristik Plastik Degradable Berbasis Pati Sagu dan Pati Biji Nangka Dewi, Rozanna; Zulnazri, Zulnazri; Sylvia, Novi; Riza, Medyan
Jurnal Riset Kimia Vol. 15 No. 2 (2024): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v15i2.695

Abstract

Degradable plastics may be employed as a substitute for conventional plastics in various commercial applications. Plastics made from starch and PVA-g-MAH are biodegradable. This research uses sago and jackfruit starch, a maleic anhydride compatibilizer, and PVA to make degradable plastics stronger. The research method consists of several stages, making sago starch and jackfruit seed starch, preparing degradable plastic synthesis, and testing the resulting degradable plastic. The test of mechanical characteristics of degradable plastics carried out is the tensile strength test of 4.41 Mpa - 6.02 MPa on sago starch-based degradable plastic with PVA-g-MAH, while the tensile strength of 6.86 - 8.43 MPa on jackfruit seed starch-based degradable plastic with PVA-g-MAH. The test shows that the compound is hydrophilic, meaning it binds to water and is easily degraded by soil. The DSC thermogram shows that the plastic samples degrade when heated, both thermogram peaks occur which indicate physical changes. The swelling value obtained in sago starch degradable plastic with PVA-g-MAH is (28.14-72.17%) while in jackfruit seed starch degradable plastic, the swelling obtained ranges from (25.91-84.72%) showing a good result. Sago starch and jackfruit seed starch degradable plastics degraded in 6-18 days using PVA-g-MAH. Sago starch and jackfruit seed starch-based plastics using PVA-g-MA meet the ASTM 6400 standard for biodegradable plastics. The plastic should be able to biodegrade up to 60% within six months or 90% within one year.
Penanaman Kesadaran Lingkungan Melalui Alat Permainan Edukatif (APE) pada Taman Kanak-Kanak Kabupaten Aceh Besar Sari, Cut Maya Aprita; Fadlia, Faradilla; Sentia, Prima Denny; Asmadi, Didi; Riza, Medyan; Hidayaturrahmi, Hidayaturrahmi
Nawadeepa: Jurnal Pengabdian Masyarakat Volume 3, No 1 (2024): March
Publisher : Pencerah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58835/nawadeepa.v3i1.247

Abstract

The regency of Aceh Besar often experiences environmental issues. Environmental awareness has become a serious matter that needs to be cultivated through character education from an early age through the learning process. Based on this, this community service initiative collaborates with 5 Kindergartens (TK) in Aceh Besar using a observational study. In this regard, the partner's problem lies in the lack of representative learning media to develop environmental awareness in children. This community service aims to educate children about the value of environmental awareness, which will affect their present and future social lives. Therefore, this community service project designs, produces, and distributes educational products through Educational Play Tools (EPT), such as flashcards and coloring books, as media for environmental awareness education.
Pendampingan Masyarakat Pengrajin Rotan dalam Pengelolaan Limbah Ramah Lingkungan melalui Edukasi Eco-Design di Desa Kueh - Aceh Besar Sentia, Prima Denny; Asmadi, Didi; Ilyas, Ilyas; Riza, Medyan; Sari, Cut Maya Aprita; Hidayaturrahmi, Hidayaturrahmi
Nawadeepa: Jurnal Pengabdian Masyarakat Vol. 4 No. 2 (2025): Juni
Publisher : Pencerah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58835/nawadeepa.v4i2.456

Abstract

Kueh Village, located in Aceh Besar District, is one of the centers of rattan handicrafts. However, the rattan production process in this village generates unmanaged solid and liquid waste, resulting in environmental pollution. This community service program aims to improve artisans' awareness and skills in waste management through the application of the Eco-Design concept. The implementation methods included socialization, training on waste processing, and the provision of supporting production equipment. The results showed that artisans successfully processed solid waste into new value-added products such as souvenirs, while liquid waste was minimized through safe storage and environmentally friendly dye alternatives. This program demonstrated a positive impact on artisan knowledge, environmental sustainability, and local economic enhancement.
Co-Authors Abdullah Abdullah Agam Muarif Ahmad Fikri Ananda, Aldila Andriansyah Andriansyah Asmadi, Didi Asri Gani Aula Chairunnisak Azwar Darmadi Darmadi Dewi Oetary DS, Syahiddin Edi Munawar Eko Suhartono Ernita, Lia Fadlia, Faradilla Fauzan Al Chalifa Ghazi Mauer Idroes Hasanuddin, Iskandar Hidayaturrahmi, Hidayaturrahmi Hisbullah Hisbullah Ilyas Ilyas Isna Safitri Izarul Machdar Izarul Machdar Izarul Machdar, Izarul Jalalul Akbar, Said Juwita Juwita, Juwita Kasturi Kasturi, Kasturi Khairan Khairan Lia Ernita Mirna Rahmah Lubis Mubarak Mubarak Muhamad Dani Supardan Muhammad Subhan Mukhlishien Mukhlishien, Mukhlishien Mukramah Mukramah Mukramah Yusuf Mukramah Yusuf Wahab Mulyati, Sri Nasrul Arahman Nasrul Arahman Nasrul Arahman Nissa Prasanti Novi Sylvia Prasetio, Rasi Raden Mohamad Herdian Bhakti Rahayu Retnowulan, Sri Retnowulan, Sri Rahayu Ridwandi Rozanna Dewi Safitri, Isna Sari, Cut Maya Aprita Sentia, Prima Denny Suhendrayatna Suhendrayatna Syahiddin DS Syamsul Arifin Syaubari Syaubari Syaubari syaubari Syawaliah Muchtar Umi Fathanah Yuanda Wattimena Yulia Hayati Yusuf, Mukramah Zuhri, Sarika Zulnazri Zulnazri, Z