Detection of Adulteration in Coconut Milk using Infrared Spectroscopy and Machine Learning

• URL: http://arxiv.org/abs/2507.23418v1
• Date: Thu, 31 Jul 2025 10:44:36 GMT
• Title: Detection of Adulteration in Coconut Milk using Infrared Spectroscopy and Machine Learning
• Authors: Mokhtar A. Al-Awadhi, Ratnadeep R. Deshmukh,
• Abstract summary: We propose a system for detecting adulteration in coconut milk using infrared spectroscopy.<n>The proposed system comprises three phases: preprocessing, feature extraction, and classification.<n>We show that the proposed method successfully detects adulteration with a cross-validation accuracy of 93.33%.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In this paper, we propose a system for detecting adulteration in coconut milk, utilizing infrared spectroscopy. The machine learning-based proposed system comprises three phases: preprocessing, feature extraction, and classification. The first phase involves removing irrelevant data from coconut milk spectral signals. In the second phase, we employ the Linear Discriminant Analysis (LDA) algorithm for extracting the most discriminating features. In the third phase, we use the K-Nearest Neighbor (KNN) model to classify coconut milk samples into authentic or adulterated. We evaluate the performance of the proposed system using a public dataset comprising Fourier Transform Infrared (FTIR) spectral information of pure and contaminated coconut milk samples. Findings show that the proposed method successfully detects adulteration with a cross-validation accuracy of 93.33%.

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