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DOI: 10.14569/IJACSA.2025.0160318
PDF

Machine Learning-Based Terahertz Spectroscopy for Starch Concentration Prediction in Biofilms

Author 1: Juan-Jesus Garrido-Arismendis
Author 2: Jimy Oblitas
Author 3: Cesar Nino
Author 4: Himer Avila-George
Author 5: Wilson Castro

International Journal of Advanced Computer Science and Applications(IJACSA), Volume 16 Issue 3, 2025.

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Abstract: Food preservation and safety require advanced detection methods to ensure transparency in supply chains. Terahertz (THz) spectroscopy has emerged as a powerful, non-invasive tool for material characterization. This study explores the integration of THz spectroscopy and machine learning for accurately quantifying maize starch adulteration in bioplastics derived from potato starch. Bioplastic samples with varying concentrations of maize starch were prepared, molded into three different thicknesses, and subjected to a two-stage drying process, resulting in 81 samples (27 treatments with three replicates each). The spectral profiles at THz (0.5 to 2 THz) were recorded and analyzed using three regression models: support vector regression, partial least squares regression, and multiple linear regression. The models were evaluated using the coefficient of determination (R2), Root Mean Square Error (RMSE), and the Residual Predictive Deviation (RPD). The results showed R2 values ranging from 0.7283 to 0.9495, RMSE between 0.0594 and 0.1393, and RPD values from 1.8753 to 4.4479, demonstrating strong predictive performance. These findings highlight the potential of THz spectroscopy and machine learning in the noninvasive detection of starch adulterants in bioplastics, paving the way for future research to enhance model robustness and applicability.

Keywords: Terahertz spectroscopy; machine learning; chemo-metrics; starch detection; biofilms

Juan-Jesus Garrido-Arismendis, Jimy Oblitas, Cesar Nino, Himer Avila-George and Wilson Castro, “Machine Learning-Based Terahertz Spectroscopy for Starch Concentration Prediction in Biofilms” International Journal of Advanced Computer Science and Applications(IJACSA), 16(3), 2025. http://dx.doi.org/10.14569/IJACSA.2025.0160318

@article{Garrido-Arismendis2025,
title = {Machine Learning-Based Terahertz Spectroscopy for Starch Concentration Prediction in Biofilms},
journal = {International Journal of Advanced Computer Science and Applications},
doi = {10.14569/IJACSA.2025.0160318},
url = {http://dx.doi.org/10.14569/IJACSA.2025.0160318},
year = {2025},
publisher = {The Science and Information Organization},
volume = {16},
number = {3},
author = {Juan-Jesus Garrido-Arismendis and Jimy Oblitas and Cesar Nino and Himer Avila-George and Wilson Castro}
}



Copyright Statement: This is an open access article licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, even commercially as long as the original work is properly cited.

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