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Rapid detection of adulteration in pistachio based on deep learning methodologies and affordable system

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Abstract

The development of international trade has facilitated the global distribution of food. Ensuring the safety of food products is a crucial process that spans from production to sale. Mismanagement of this process can pose significant public health risks. The issue of food adulteration is increasingly prevalent, necessitating the development of fast and reliable methods for its detection. Deep learning, as an effective machine learning algorithm, has emerged as a new field in the food industry, offering rapid and accurate results in the identification of food adulteration. In this study, a digital image and deep learning-based method was developed to detect spinach adulteration in pistachios. A unique dataset with 6 classes was created in a laboratory environment for testing the method. The adulteration rates for each class were determined, and images were analyzed in various color spaces, including Red Green Blue (RGB), HSV (Hue Saturation Value), Y,u and v (YUV), and L, a, and b (LAB). Subsequently, Convolutional Neural Network (CNN) architectures, namely ResNet-50, VGGNet-19, and DenseNet201, were employed for classification. The accuracy of all color spaces and architectural combinations exceeded 90%. Notably, the VGGNet-19 architecture achieved a 100% success rate in classifying the LAB color space. Moreover, the YUV/ResNet-50 and HSV/VGGNet-19 combinations demonstrated over 98% success in detecting peanut adulteration. The utilization of deep learning-based architectures enables swift and effortless analysis of complex food samples, eliminating the challenges associated with analyzing large quantities of food and effectively preventing food adulteration.

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Data availability

The datasets generated during and analysed during the current study are available in the [Kaggle] repository, [https://www.kaggle.com/datasets/kazimkili/spinach-adulterated-pistachios].

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Authors and Affiliations

  1. Department of Computer Engineering, Faculty of Engineering and Architecture, Yozgat Bozok University, 66100, Yozgat, Turkey

    Gökalp Çinarer

  2. Department of Food Technology, Bogazliyan Vocational School, Yozgat Bozok University, 66400, Yozgat, Turkey

    Nurcan Doğan & Cemhan Doğan

  3. Department of Computer Technology, Yozgat Vocational School, Yozgat Bozok University, 66100, Yozgat, Turkey

    Kazım Kılıç

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Çinarer, G., Doğan, N., Kılıç, K. et al. Rapid detection of adulteration in pistachio based on deep learning methodologies and affordable system. Multimed Tools Appl 83, 14797–14820 (2024). https://doi.org/10.1007/s11042-023-16172-5

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