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All Journal JKPK (Jurnal Kimia dan Pendidikan Kimia) Engagement: Jurnal Pengabdian Kepada Masyarakat
Kabeakan, Feri Yuni Asiyah
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Religion Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Education Social Sciences

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Analyze Farmers' Attitudes, Skills, and SDG Achievements through the Production of Organic Fertilizer from Corn Cobs Sri Adelila Sari; Prastowo, Puji; Muslim, Muslim; Kabeakan, Feri Yuni Asiyah; Hasibuan, Hanisah; Nasution, Lia Mardiana
Engagement: Jurnal Pengabdian Kepada Masyarakat Vol 8 No 2 (2024): November 2024
Publisher : Asosiasi Dosen Pengembang Masyarajat (ADPEMAS) Forum Komunikasi Dosen Peneliti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29062/engagement.v8i2.1835

Abstract

Unutilized corn cob waste damages the environment and reduces land sustainability. Processing it into organic fertilizer can support a circular economy and reducing waste. This study was aimed to analyze the attitudes, skills, and achievements of farmers' SDGs in processing corn cob waste into organic fertilizer. The method used was counseling and training for 30 farmers. The instrument used was a questionnaire to measure attitudes and skills, with 10 items each. The results showed that there was a significant increase in farmers' attitudes and skills, respectively, with an average score of 0.994 (very accepting category) and 0.993 (very skilled category). The findings concluded that counselling and training can improve positive attitudes and skills of farmers in processing corn cob into organic fertilizer. Thus, the objectives of the Sustainable Development Goals related to food security, environmental protection, independent and competitive farmer groups, local economic growth in Pakpak Bharat could be achieved.
Biosynthesis and Characterization of SiO-Cochineal Dye Nanoparticles Based on Salak Frond Silica for Fingerprint Visualization Applications Sari, Sri Adelila; Kabeakan, Feri Yuni Asiyah; Febriana, Rani
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 10, No 2 (2025): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v10i2.106785

Abstract

Latent fingerprint visualization is a critical technique in modern forensic science that requires effective and environmentally sustainable coloring agents. This study reports synthesizing and characterizing a novel dyeing agent based on Cochineal insect extract combined with silica derived from salak (Salacca zalacca) bunch waste. It evaluates its application in fingerprint visualization. Cochineal extract was obtained via stepwise heating in a polar solvent, while silica was synthesized through carbonization, demineralization, destruction, and neutralization. The SiO–Cochineal nanoparticles were prepared using a stepwise thermal immobilization method, resulting in covalent bonding between the pigment and silica matrix. Structural and functional group characterization using FTIR confirmed the presence of Si–O–Si, O–H, and C=O groups, indicating successful integration. Application tests on latent fingerprints demonstrated that the composite powders produced sharp and distinct ridge patterns, particularly on non-porous substrates such as glass and optical discs. These findings suggest that SiO-Cochineal-based powders are effective for forensic applications and represent a promising green alternative for latent fingerprint visualization.
Eco-Friendly Revolution in Fingerprint Detection: Synthesis of Zno Nanoparticles Using Durian (Durio Zibethinus) Peel Extract Pakpak Bharat Sari, Sri Adelila; Febriana, Rani; Kabeakan, Feri Yuni Asiyah
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 10, No 3 (2025): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v10i3.106878

Abstract

Fingerprints are a reliable means of forensic identification because ridge patterns are unique and permanent. Conventional fingerprint powders, however, may contain hazardous ingredients that pose health and environmental risks. This study synthesized zinc oxide (ZnO) nanoparticles via a green route using durian peel (Durio zibethinus) extract and evaluated their potential as an eco-friendly latent fingerprint developer. ZnO nanoparticles were characterized by FTIR to identify functional groups, SEM to examine morphology and particle size, and EDX to verify elemental composition. The biosynthesized ZnO showed semi-spherical to granular particles with sizes of 40–90 nm and no severe agglomeration. FTIR indicated hydroxyl and carbonyl groups from durian peel biomolecules, suggesting their role as reducing and stabilizing agents. EDX confirmed dominant Zn (72.5%) and O (15.2%) signals, supporting high purity ZnO formation. Latent fingerprint development was tested using prints from 40 respondents on porous surfaces (black cardboard and oil paper) and nonporous surfaces (microscope slide, aluminum foil, and compact disc). The ZnO nanopowder produced clear ridge patterns and higher contrast on nonporous substrates, while conventional powders tended to leave residues and may require less safe reagents. These results indicate that durian peel derived ZnO nanoparticles are a promising, economical, and environmentally friendly alternative for latent fingerprint visualization and provide added value for agricultural waste utilization in forensic applications.
Co-Authors Febriana, Rani Hasibuan, Hanisah Muslim Muslim Nasution, Lia Mardiana Puji Prastowo, Puji Sri Adelila Sari Sri Adelila Sari