Biopolymer Gel from Pineapple Peel (Ananas comosus) Waste-Based Gel with Sodium Chloride (NaCl) for Optimizing Electrocardiogram (ECG) Signal Recording

Meita Mahardianti; Salsabila Septha Kharisma; Rosita Wati; Yusuf Affandi

doi:10.23960/jemit.386

Authors

Meita Mahardianti Department of Biomedical Engineering, Institut Teknologi Sumatera, Lampung
Salsabila Septha Kharisma Department of Biomedical Engineering, Institut Teknologi Sumatera, Lampung
Rosita Wati Department of Biomedical Engineering, Institut Teknologi Sumatera, Lampung
Yusuf Affandi Department of Instrumentation and Automation Engineering, Institut Teknologi Sumatera, Lampung

DOI:

https://doi.org/10.23960/jemit.386

Keywords:

ECG Gel, Pineapple Peel Waste, Conduvtivity, ECG Signal, NaCl

Abstract

Pineapple peel (Ananas comosus) as organic waste has potential as a raw material for biomedical gel in electrocardiogram (ECG) recording. ECG gel functions as a conductive medium facilitating electrical transmission between skin and electrodes to improve cardiac signal accuracy. This study developed gel from pineapple peel waste with sodium chloride (NaCl) addition for ECG recording optimization. The process included pineapple peel extraction, gel formulation using carbomer 940, and extract concentration variations of 10-100%. Evaluation was conducted on physical properties including electrical conductivity, viscosity, pH, density, crust thickness, and ECG recording performance. Results showed gel with 20-50% pineapple peel extract had high conductivity, skin-compatible pH (4.5-7), and reduced crust thickness. ECG recording produced well-defined P, QRS, and T waves with minimal noise. These findings demonstrate that pineapple peel waste-based gel is a promising eco-friendly alternative for cardiac diagnostics and sustainable organic waste utilization.

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Author Biography

Yusuf Affandi, Department of Instrumentation and Automation Engineering, Institut Teknologi Sumatera, Lampung

Department of Instrumentation and Automation Engineering

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