OrangerV1, Main, Exploration, bibRecord, 000709

Degradation kinetic modelling of ascorbic acid and colour intensity in pasteurised blood orange juice during storage.

Identifieur interne : 000709 ( Main/Exploration ); précédent : 000708; suivant : 000710

Degradation kinetic modelling of ascorbic acid and colour intensity in pasteurised blood orange juice during storage.

Auteurs : Hocine Remini [Algérie] ; Christian Mertz [France] ; Amine Belbahi [Algérie] ; Nawel Achir [France] ; Manuel Dornier [France] ; Khodir Madani [Algérie]

Source :

Food chemistry [ 0308-8146 ] ; 2015.

RBID : pubmed:25466074

English descriptors

KwdEn :
- Ascorbic Acid (chemistry), Beverages (analysis), Citrus sinensis (chemistry), Color, Food Storage, Kinetics, Pasteurization, Temperature.
MESH :
- chemical , chemistry : Ascorbic Acid.
- analysis : Beverages.
- chemistry : Citrus sinensis.
- Color, Food Storage, Kinetics, Pasteurization, Temperature.

Abstract

The stability of ascorbic acid and colour intensity in pasteurised blood orange juice (Citrus sinensis [L.] Osbeck) during one month of storage was investigated at 4-37 °C. The effects of ascorbic acid fortification (at 100, 200 mg L(-1)) and deaeration, temperature/time storage on the kinetic behaviour were determined. Ascorbic acid was monitored by HPLC-DAD and colour intensity by spectrophotometric measurements. Degradation kinetics were best fitted by first-order reaction models for both ascorbic acid and colour intensity. Three models (Arrhenius, Eyring and Ball) were used to assess the temperature-dependent degradation. Following the Arrhenius model, activation energies were ranged from 51 to 135 kJ mol(-1) for ascorbic acid and from 49 to 99 kJ mol(-1) for colour intensity. The effect of storage temperature and deaeration are the most influent factors on kinetics degradation, while the fortification revealed no significant effect on ascorbic acid content and colour intensity.

DOI: 10.1016/j.foodchem.2014.10.069
PubMed: 25466074

Affiliations:

Le document en format XML

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<term>Color</term>
<term>Food Storage</term>
<term>Kinetics</term>
<term>Pasteurization</term>
<term>Temperature</term>
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<front><div type="abstract" xml:lang="en">The stability of ascorbic acid and colour intensity in pasteurised blood orange juice (Citrus sinensis [L.] Osbeck) during one month of storage was investigated at 4-37 °C. The effects of ascorbic acid fortification (at 100, 200 mg L(-1)) and deaeration, temperature/time storage on the kinetic behaviour were determined. Ascorbic acid was monitored by HPLC-DAD and colour intensity by spectrophotometric measurements. Degradation kinetics were best fitted by first-order reaction models for both ascorbic acid and colour intensity. Three models (Arrhenius, Eyring and Ball) were used to assess the temperature-dependent degradation. Following the Arrhenius model, activation energies were ranged from 51 to 135 kJ mol(-1) for ascorbic acid and from 49 to 99 kJ mol(-1) for colour intensity. The effect of storage temperature and deaeration are the most influent factors on kinetics degradation, while the fortification revealed no significant effect on ascorbic acid content and colour intensity.</div>
</front>
</TEI>
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Degradation kinetic modelling of ascorbic acid and colour intensity in pasteurised blood orange juice during storage.

Degradation kinetic modelling of ascorbic acid and colour intensity in pasteurised blood orange juice during storage.

Source :

English descriptors

Abstract

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