Determination of Radical Scavenging Activity in Vegetable Oils Using Smartphone Image Analysis in the RGB Color System

This Python-based script provides a tool for determining radical scavenging activity (RSA) of samples using RGB values derived from smartphone image analysis. The algorithm focuses on the use of R and G channel intensities to estimate antioxidant activity, based on the decolorization of DPPH.

Originally designed for laboratory evaluation of natural extracts and oils, the method calculates absorption values and radical scavenging percentage by comparing reference intensities (I₀ and IDPPH) with sample data.

Key Features:

    Inputs reference RGB values and sample RGB data.

    Calculates intermediate absorption and RSA.

    Outputs results per sample and exports data to an Excel file.

   Suitable for research in natural product analysis or for the rapid screening of antioxidants.