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All Journal ABDIMAS: Jurnal Pengabdian Masyarakat Molekul: Jurnal Ilmiah Kimia
Nur Arfa Yanti
Halu Oleo University
Biochemistry, Genetics & Molecular Biology Chemistry Materials Science & Nanotechnology

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Innovation in Scad Mackerel (Decapterus spp.) Processing Into Economically Valuable Products for Improving The Skills of Coastal Communities in Nambo Village Sitti Wirdhana Ahmad; Nur Arfa Yanti; Muhsin Muhsin; Andi Septiana; Muzuni Muzuni; Taufik Walhidayah
ABDIMAS: Jurnal Pengabdian Masyarakat Vol. 5 No. 1 (2022): ABDIMAS UMTAS: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Universitas Muhammadiyah Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (578.919 KB) | DOI: 10.35568/abdimas.v5i1.1668

Abstract

Scad Mackerel (Decapterus spp.) is the main consumption commodity of coastal communities in Nambo village. Apart from public awareness is quite high, the price is affordable, and has nutritional value since unsaturated fats is low, so it good to consume for all ages. The public lack of knowledge about proper fish management. The solution is to provide an understanding of fish processing techniques so be more selling, delicious and nutritious, as well as for community empowerment with the aim of creating fisheries entrepreneurs. The method was the lecture method, socialization and training to the community as an empowerment effort to improve knowledge, skills and well-being. The implementation of the service in the form of location surveys, coordination with local regional chief of village and PKK administrators, preparation of equipment and materials, and some processed samples of fish, socialization about the benefits of fish and fish processing training
A Novel Enzyme Biosensor Based on Ag/Reduced Graphene Oxide/Chitosan Membrane with Potentiometer for Pesticide Detection Mashuni Mashuni; Nur Arfa Yanti; Irnawati Irnawati; Fitri Handayani Hamid; Muhammad Jahiding
Molekul Vol 18 No 1 (2023)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2023.18.1.6864

Abstract

Long-term accumulation of pesticides in the environment to human and animal health. Acetylcholinesterase (AChE) biosensors with highly sensitive potentiometer transducers based on the membranes of Ag, reduced graphene oxide (rGO), and chitosan (CS) has been successfully developed. The membrane was made with a composition of 0.5 mM AgNO3, 2.5 mg/mL rGO, and 2% (w/v) CS coated on the surface of the Au electrode. The composition of the membrane with three ratios, namely 1:1:2, 2:1:3, and 3:1:4. Then, membrane Ag/rGO/CS and the enzyme AChE were immobilized on the membrane surface. The prepared biosensor has excellent conductivity, catalytic activity, and biocompatibility attributed to the synergistic effect of Ag/rGO/CS and glutaraldehyde (GTA) as crosslinkers and providing a hydrophilic surface for AChE adhesion. The linear range in biosensors is 1 × 10-8 to 1 µg L-1 with a regression coefficient of 0.9803 for 1:1:2 membrane, 0.9836 for 2:1:3 membrane, and 0.9850 for 3:1:4 membrane. The LOD is about 1 × 10-7 µg L-1 for all membranes. In addition, the biosensor showed good sensitivity, acceptable reproducibility, and stability, having an RSD of less than 5%. This biosensor makes it possible to provide a new and promising tool for analyzing pesticides, especially organophosphates.
Co-Authors Ahmad, Sitti Wirdhana Andi Septiana Fitri Handayani Hamid Irnawati Irnawati Mashuni Mashuni Muhammad Jahiding Muhsin Muhsin Muzuni, Muzuni Taufik Walhidayah