Discrimination of domestic and imported red chili powders using laser-induced breakdown spectroscopy: variable selection and comparative evaluation of machine learning algorithms

Key Points

• The aim is to differentiate between domestic and imported red chili powders using advanced techniques.
• Utilized laser-induced breakdown spectroscopy (LIBS) for analysis.
• Applied systematic variable selection to enhance data relevance.
• Compared multiple machine learning algorithms for classification accuracy.
• Successfully distinguished between domestic and imported red chili powders.
• Machine learning algorithms showed varying effectiveness, with specific models outperforming others.