Colour and carotenoid changes of pasteurised orange juice during storage.
Identifieur interne : 000740 ( Main/Exploration ); précédent : 000739; suivant : 000741Colour and carotenoid changes of pasteurised orange juice during storage.
Auteurs : Scheling Wibowo [Belgique] ; Liesbeth Vervoort [Belgique] ; Jovana Tomic [Belgique] ; Jihan Santanina Santiago [Belgique] ; Lien Lemmens [Belgique] ; Agnese Panozzo [Belgique] ; Tara Grauwet [Belgique] ; Marc Hendrickx [Belgique] ; Ann Van Loey [Belgique]Source :
- Food chemistry [ 0308-8146 ] ; 2015.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Carotenoids, Cryptoxanthins, Xanthophylls.
- analysis : Beverages.
- chemistry : Fruit.
- methods : Food Preservation.
- Citrus sinensis, Cold Temperature, Color, Hot Temperature, Pasteurization, Temperature, Thermodynamics.
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(∗), Cab(∗) 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.
DOI: 10.1016/j.foodchem.2014.09.007
PubMed: 25308677
Affiliations:
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Le document en format XML
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<term>Carotenoids (analysis)</term>
<term>Citrus sinensis</term>
<term>Cold Temperature</term>
<term>Color</term>
<term>Cryptoxanthins (analysis)</term>
<term>Food Preservation (methods)</term>
<term>Fruit (chemistry)</term>
<term>Hot Temperature</term>
<term>Pasteurization</term>
<term>Temperature</term>
<term>Thermodynamics</term>
<term>Xanthophylls (analysis)</term>
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<keywords scheme="MESH" xml:lang="en"><term>Citrus sinensis</term>
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<front><div type="abstract" xml:lang="en">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(∗), Cab(∗) 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.</div>
</front>
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<name sortKey="Tomic, Jovana" sort="Tomic, Jovana" uniqKey="Tomic J" first="Jovana" last="Tomic">Jovana Tomic</name>
<name sortKey="Van Loey, Ann" sort="Van Loey, Ann" uniqKey="Van Loey A" first="Ann" last="Van Loey">Ann Van Loey</name>
<name sortKey="Vervoort, Liesbeth" sort="Vervoort, Liesbeth" uniqKey="Vervoort L" first="Liesbeth" last="Vervoort">Liesbeth Vervoort</name>
</country>
</tree>
</affiliations>
</record>
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