{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T13:22:21Z","timestamp":1791379341613,"version":"4.3.2"},"reference-count":31,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2026,5,21]],"date-time":"2026-05-21T00:00:00Z","timestamp":1779321600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>This research aimed to develop a rapid, non-destructive, and accurate method for detecting adulteration in turmeric using Visible\u2013Near-Infrared (UV\/Vis and NIR) spectroscopy combined with machine learning algorithms. Spectral data from the samples were collected and analyzed in two ranges: 170\u2013870 nm (UV\/Vis) and 900\u20132170 nm (NIR). Four supervised learning algorithms, including Support Vector Machine (SVM), Linear Discriminant Analysis (LDA), the Multilayer Perceptron (MLP) neural network, and Decision Tree, were evaluated for modeling. To quantitatively assess model performance, we employed not only the accuracy metric but also complementary performance indicators including precision, recall, and the F1-score to provide a more comprehensive evaluation of classification effectiveness. The models developed in the 900\u20132170 nm spectral range demonstrated highly significant performance, with most models achieving 100% accuracy on the independent test set. To reduce data dimensionality and enhance computational efficiency, a hybrid feature selection method combining SVM with five algorithms\u2014League Championship Algorithm (LCA), Genetic Algorithm (GA), Particle Swarm Optimization (PSO), Ant Colony Optimization (ACO), and Imperialist Competitive Algorithm (ICA)\u2014was employed. Upon evaluation of each method, the SVM-LCA was selected as the optimal feature selection technique. This algorithm successfully extracted the most effective wavelengths with the highest correlation and lowest error, which maintained or improved the accuracy of the classification models. This study confirms the high potential of UV\/Vis and NIR spectroscopy as rapid, non-destructive, and precise tools for detecting adulteration in turmeric. The findings can pave the way for the development of intelligent quality control systems in the food and pharmaceutical industries, playing a crucial role in ensuring consumer health and safety.<\/jats:p>","DOI":"10.3390\/molecules31101774","type":"journal-article","created":{"date-parts":[[2026,5,21]],"date-time":"2026-05-21T12:06:07Z","timestamp":1779365167000},"page":"1774","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Machine Learning and the Use of Spectroscopy for Adulteration Detection in Turmeric Powder"],"prefix":"10.3390","volume":"31","author":[{"given":"Asma","family":"Kisalaei","sequence":"first","affiliation":[{"name":"Department of Biosystems Engineering, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil 56199-11367, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5981-5229","authenticated-orcid":false,"given":"Vali Rasooli","family":"Sharabiani","sequence":"additional","affiliation":[{"name":"Department of Biosystems Engineering, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil 56199-11367, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2536-3305","authenticated-orcid":false,"given":"Ahmad","family":"Banakar","sequence":"additional","affiliation":[{"name":"Biosystems Engineering Department, Tarbiat Modares University, Tehran 14117-13116, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1093-6115","authenticated-orcid":false,"given":"Ebrahim","family":"Taghinezhad","sequence":"additional","affiliation":[{"name":"Biosystems Engineering Department, Tarbiat Modares University, Tehran 14117-13116, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3337-0337","authenticated-orcid":false,"given":"Mariusz","family":"Szymanek","sequence":"additional","affiliation":[{"name":"Department of Agricultural, Forest and Transport Machinery, University of Life Sciences in Lublin, G\u0142\u0119boka 28, 20-612 Lublin, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2850-1969","authenticated-orcid":false,"given":"Agata","family":"Dziwulska-Hunek","sequence":"additional","affiliation":[{"name":"Department of Biophysics, University of Life Sciences in Lublin, 20-950 Lublin, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,5,21]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2889","DOI":"10.1080\/10408398.2015.1077195","article-title":"Curcumin, an active component of turmeric (Curcuma longa), and its effects on health","volume":"57","author":"Kocaadam","year":"2017","journal-title":"Crit. 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