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All Journal Jurnal Biologi Tropis Jurnal Teknik Industri Terintegrasi (JUTIN) JES-TM Social and Community Service
Primarista, Ni Putu Vidya
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Education Energy Engineering Immunology & microbiology Industrial & Manufacturing Engineering Mechanical Engineering Other

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The Effect of Sugar Variation and Fermentation Time on Hydrogen Peroxide Levels and Eco-Enzyme Antibacterial Activity Primarista, Ni Putu Vidya; Wali, Abdul Rohman; Syahwardini, Trisuciati
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i1.11178

Abstract

Eco-enzyme is a filtrate resulting from the fermentation of sugar, organic materials, and water, which is produced not only to reduce organic waste but also as a functional product. This study aims to examine the effects of sugar type and the eco-enzyme's fermentation duration on three key parameters: bacterial optical density, hydrogen peroxide concentration, and inhibition zone against Staphylococcus aureus and Escherichia coli. The bacterial optical density was determined from absorbance measured at 600 nm using a UV-Vis spectrophotometer, the hydrogen peroxide concentration was determined by permanganometric titration, and the inhibition zone of the eco-enzyme against Staphylococcus aureus and Escherichia coli was determined using the disc diffusion method. The results showed that the eco-enzyme fermented with molasses for one month had the highest bacterial optical density. Meanwhile, the highest hydrogen peroxide concentration was found in the eco-enzyme fermented with molasses for three months. In addition, the eco-enzyme fermented with molasses for three months exhibited the highest antibacterial activity against Staphylococcus aureus and Escherichia coli, with inhibition zones of 6.59 mm and 6.37 mm, respectively. Eco-enzymes fermented with granulated sugar, palm sugar, and molasses all showed antibacterial activity against Staphylococcus aureus and Escherichia coli. However, the highest antibacterial activity against both bacteria was observed in the eco-enzyme fermented with molasses for three months.
Kolaborasi PSDKU Siak: Peningkatan Fasilitas Bank Sampah Pelangi dengan Cat Ramah Lingkungan Wieanata, Arya; Syahwardini, Trisuciati; Hasrul, Hasrul; Primarista, Ni Putu Vidya; Wali, Abdul Rohman
Journal of Social and Community Service Vol. 4 No. 3 (2025): November 2025
Publisher : Faculty of Engineering University of Pahlawan Tuanku Tambusai

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Abstract

Achieving the Sustainable Development Goals (SDGs), particularly SDGs 11 and 12, is a top priority requiring the development of eco-friendly products and community empowerment through waste management. The Induk Pelangi Waste Bank in Siak Sri Indrapura is an active community-based waste management facility that requires support for infrastructure improvement. This program was conducted during October 2025, beginning with the identification of partner needs focused on the revitalization of the administration building. The solution was implemented through an appropriate technology approach, where the physical renovation process served as a vehicle for the application of eco-friendly natural rubber latex-based paint research. This innovative product is the result of research collaboration between Politeknik Negeri Sriwijaya PSDKU Siak and the University of Riau. The paint application was carried out in two coats in a participatory manner on the building's interior and exterior. The results show that the administration building now appears neater and more presentable. Furthermore, this activity successfully demonstrated the viability of green technology and served as an educational medium that aligns the waste bank's infrastructure with the environmental values it promotes.
Artikel Review: Teknologi Zeolit untuk Penangkapan Karbon (Carbon Capture): Karakteristik, Modifikasi dan Tantangan Operasional Hasrul, Hasrul; Syahwardini, Trisuciati; Wali, Abdul Rahman; Purfaji, Purfaji; Wiranata, Arya; Primarista, Ni Putu Vidya
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 1 (2026): January
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i1.53291

Abstract

Zeolites are promising adsorbents for CO₂ capture due to their high surface area, thermal stability, and cost-effectiveness. Their performance can be enhanced through chemical modifications such as amine impregnation, cation exchange, and hydrophobic surface grafting, enabling improved selectivity and resistance to moisture. However, operational challenges remain, including water competition, regeneration energy demand, and cyclic stability under industrial conditions. Strategies like guard beds, hydrophobic zeolites, and hybrid systems are being developed to overcome these limitations. Zeolite-based adsorption offers a sustainable pathway for reducing CO₂ emissions and advancing low-carbon technologies.
Co-Authors Hasrul Hasrul, Hasrul Purfaji, Purfaji Syahwardini, Trisuciati Wali, Abdul Rahman Wali, Abdul Rohman Wieanata, Arya Wiranata, Arya