Diñeiro Rubial, José Manuel

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https://academica-e.unavarra.es/handle/2454/48901

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Diñeiro Rubial

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José Manuel

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Ciencias

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InaMat2. Instituto de Investigación en Materiales Avanzados y Matemáticas

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0000-0003-4925-1102

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88352

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111

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End date: 2019 × Subject: Kubelka-munk ×

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    CIELAB color paths during meat shelf life
    (Elsevier, 2019) Hernández Salueña, Begoña; Sáenz Gamasa, Carlos; Diñeiro Rubial, José Manuel; Alberdi Odriozola, Coro; Zientziak; Institute for Advanced Materials and Mathematics - INAMAT2; Ciencias
    Meat color evolution from freshly cut to beyond shelf life, up to 40% of metmyoglobin, has been theoretically modeled using the Kubelka-Munk theory and a set of measured reference reflectance spectra of deoxymyoglobin, oxymyoglobin and metmyoglobin. Color evolution depicts characteristic color paths in CIELAB color space. During oxidation the model explains the approximately constancy of L*, b* and hab, with variations typically hidden by sample dispersion, and the special significance of a* and C* in relation with metmyoglobin formation. CIELAB ΔE* color difference and the reflectance ratio R630/R580 are even better indicators of metmyoglobin changes during oxidation. The role of a*, C*, ΔE* and R630/R580 and their relationship during oxidation is a normal feature in the model with quantitative predictions in general agreement with literature. Results further emphasize the dangers of reporting color coordinates in different illuminants.