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J Food Sci Technol. 2017 Aug;54(9):2797-2803. doi: 10.1007/s13197-017-2716-3. Epub 2017 Jun 16.

Measurement of ripening of raspberries (.

Journal of food science and technology

Francisco J Rodríguez-Pulido, María Gil-Vicente, Belén Gordillo, Francisco J Heredia, M Lourdes González-Miret

Affiliations

  1. Food Colour and Quality Laboratory, Department Nutrition and Food Science, Facultad de Farmacia, Universidad de Sevilla, 41012 Seville, Spain.

PMID: 28928519 PMCID: PMC5583109 DOI: 10.1007/s13197-017-2716-3

Abstract

This work includes the evaluation of 168 samples of raspberries 'Glen Lyon', representing whole maturation period, by colorimetric and near infrared imaging techniques, as well as the quantification of total phenols, total anthocyanins and antioxidant activity by chemical methods. Samples showed significant differences depending on the maturation stage using CIELAB colour parameters and total anthocyanins content. The application of partial least squares regression allowed predicting the chemical features from image analysis data, with coefficients of determination (R

Keywords: Hyperspectral image analysis; Image analysis; Partial least squares regression; Phenolics; Raspberry ‘Glen Lyon’ (Rubus idaeus L)

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