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Color difference (dE*ab) (A), change of whiteness index (B), chroma (C) and hue (D) of PHA composites stabilized with 1 phr of rutin, hesperidin, and Chimassorb 944 after UV ageing and weathering was measured according to the Cie-Lab color scale. Coordinate a* green/red color component (a* > 0 red, a* < 0 green) and b* blue/yellow color component (b* > 0 yellow, b* < 0 blue).
