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Title: Colour and carotenoid changes of pasteurised orange juice during storage
Authors: Scheling, Wibowo
Vervoort, Liesbeth
Tomic, Jovana
Santiago, Ji
Lemmens, Lien
Panozzo, Agnese
Grauwet, Tara
Hendrickx, Marc
Van Loey, Ann # ×
Issue Date: 15-Mar-2015
Publisher: Applied Science Publishers
Series Title: Food Chemistry vol:171 pages:330-340
Abstract: The correlation of carotenoid changes with colour degradation of pasteurised single strength orange juice was investigated at 20, 28, 35 and 42 °C for a total of 32 weeks of storage. Changes in colour were assessed using the CIELAB system and were kinetically described by a zero-order model. L*, a*, b*, ΔE*, C*ab and hab were significantly changed during storage (p < 0.05). Activation energies for all colour parameters were 64–73 kJ mol−1. Several carotenoids showed important changes and appeared to have different susceptibilities to storage. A decrease of β-cryptoxanthin was observed at higher temperatures, whereas antheraxanthin started to decrease at lower temperatures. Depending on the time and temperature, changes in carotenoids could be due to isomerisation reactions, which may lead to a perceptible colour change. Although the contribution of carotenoids was recognised to some extent, other reactions seem of major importance for colour degradation of orange juice during storage.
URI: 
ISSN: 0308-8146
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Food and Microbial Technology
× corresponding author
# (joint) last author

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