Solving the spectroscopy interference effects of beta-carotene and lycopene by neural networks |
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Authors: | Torrecilla José S Cámara Montaña Fernández-Ruiz Virginia Piera Guiomar Caceres Jorge O |
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Institution: | Departamentos de Ingeniería Química and Química Analítica, Facultad de Ciencias Químicas, Facultad de Farmacia, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain. |
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Abstract: | In this study a new computerized approach and linear models (LMs) to solve the UV/vis spectroscopy interference effects of beta-carotene with lycopene analysis by neural networks (NNs) are considered. The data collected (absorbance values) obtained by UV/vis spectrophotometry were transferred into an NN-trained computer for modeling and prediction of output. Such an integrated NN/UV/vis spectroscopy approach is capable of estimating beta-carotene and lycopene concentrations with a mean prediction error 50 times lower than that calculated by the LM/UV/vis spectroscopy approach (without any previous physicochemical knowledge of the process to be modeled). |
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