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All Journal Biology, Medicine, & Natural Product Chemistry Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement)
Zuhri, Alifa Rahma
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Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Medicine & Pharmacology Public Health

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Community-Based Clean Water Quality Improvement Through Monitoring and Education In A Rural Area Of Karawang Zuhri, Alifa Rahma; Pambudi, Teguh; Umam, Hilman Imadul; Putri, Fajar Amelia Rachmawati
Jurnal Pengabdian kepada Masyarakat (Indonesian Journal of Community Engagement) Vol 11, No 3 (2025): September
Publisher : Direktorat Pengabdian kepada Masyarakat Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpkm.105233

Abstract

Surface water is the primary source of water for communities but is highly susceptible to contamination that can pose health risks. Telukambulu, a village in Karawang, West Java, faces challenges in household clean water quality. This community service activity aims to evaluate household water quality through the assessment of physical water parameters and screening using water test strips to measure chemical parameters. Analysis reveals that household water is not entirely suitable for daily needs such as drinking and cooking, with chemical parameters like pH, alkalinity, and chlorine levels being inconsistent. Community education was conducted to enhance understanding of the importance of water management, coupled with the application of simple filtration technology for water purification. This solution was designed to be easily adopted and sustainable. The program successfully raised community awareness about the importance of clean water quality and provided practical guidelines for improving household water quality. Through this approach, it is expected that the community can manage water more healthily and support better living standards.
Sustainable Valorization of Corncob Residues through Green Lignin Extraction for Functional Sunscreen Applications Pambudi, Teguh; Umam, Hilman Imadul; Rachmawati Putri, Fajar Amelia; Zuhri, Alifa Rahma; Salsabila S., Nanda Aurelia; Halimah, Melisa Nur; Bruning, Sheryl Ayesha; Vioniken, Elzandra Imola
Biology, Medicine, & Natural Product Chemistry Vol 15, No 1 (2026)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2026.151.119-125

Abstract

Corncob residues represent an abundant agricultural biomass rich in cellulose, hemicellulose, and lignin. Lignin, an aromatic biopolymer containing benzene and ketone functional groups, exhibits inherent ultraviolet (UV) absorption, positioning it as a promising bio-based ingredient for sustainable sunscreen formulations. In this study, lignin was extracted from corncob residues—comprising 18.5% hemicellulose, 23.5% cellulose, and 16.5% lignin—using a green deep eutectic solvent (DES) system composed of choline chloride and citric acid, and benchmarked against conventional alkaline extraction using NaOH. FTIR analysis revealed attenuated peak intensities in DES-extracted lignin, indicating lower recovery and partial structural alteration relative to the NaOH-derived counterpart. Extraction yields were 10.06% for the DES method and 16.19% for the NaOH method. Sunscreen formulations containing 2%, 3%, and 4% lignin exhibited appreciable UV absorption, particularly within the UVA region, with the highest performance observed at 4% lignin loading. These results highlight the feasibility of valorizing corncob biomass through environmentally benign lignin extraction to produce functional bio-based materials for sustainable sunscreen applications.
Co-Authors Bruning, Sheryl Ayesha Halimah, Melisa Nur Putri, Fajar Amelia Rachmawati Rachmawati Putri, Fajar Amelia Salsabila S., Nanda Aurelia Teguh Pambudi Teguh Pambudi, Teguh Vioniken, Elzandra Imola