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Heat and Light Stability of Pumpkin-Based Carotenoids in a Photosensitive Food: A Carotenoid-Coloured Beverage
Heat and Light Stability of Pumpkin-Based Carotenoids in a Photosensitive Food: A Carotenoid-Coloured Beverage
- Source :
- Foods, Vol 11, Iss 485, p 485 (2022), Foods; Volume 11; Issue 3; Pages: 485
- Publication Year :
- 2022
- Publisher :
- Zenodo, 2022.
-
Abstract
- This study aimed to evaluate carotenoid degradation kinetics in a beverage coloured with pumpkin juice concentrate during storage at dark and illuminated conditions at four temperatures (10, 20, 35 and 45 °C). Carotenoids were quantified by HPLC-DAD, and kinetic parameters for carotenoid degradation were estimated by one-step nonlinear regression analysis. During dark storage, degradation kinetics was modelled by fractional conversion (all-trans-β-carotene) and zero-order equations (all-trans-antheraxanthin, all-trans-lutein, all-trans-violaxanthin and all-trans-neoxanthin). Storage of samples in a climatic chamber with intense light intensity (1875–3000 lux) accelerated the carotenoid losses. At illuminated conditions, degradation followed a first-order (all-trans-lutein, all-trans-violaxanthin and all-trans-neoxanthin) and fractional conversion model (all-trans-β-carotene and all-trans-antheraxanthin). Carotenoid degradation followed an Arrhenius temperature-dependency, with Ea values lower than 50 kJ/mol. Degradation was shown to be mainly by oxidative reactions. Packaging under minimal oxygen conditions, use of antioxidants (e.g., ascorbic acid), and proper choice of light sources at retail shelves may be considered to optimize the pigment retention in a carotenoid-coloured beverage during storage.
- Subjects :
- Health (social science)
oxidation
IMPACT
Plant Science
TP1-1185
Health Professions (miscellaneous)
Microbiology
SHELF-LIFE
THERMAL-DEGRADATION KINETICS
TOMATO JUICE
pumpkins
degradation
Science & Technology
Chemical technology
BETA-CAROTENE
carotenoids
food and beverages
BLOOD ORANGE
ORANGE JUICE
MODEL
ASCORBIC-ACID
kinetics
Food Science & Technology
ascorbic acid
light
Life Sciences & Biomedicine
Food Science
STORAGE
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Foods, Vol 11, Iss 485, p 485 (2022), Foods; Volume 11; Issue 3; Pages: 485
- Accession number :
- edsair.doi.dedup.....c12a83905d66d0bb181cae1b2dc4bb80
- Full Text :
- https://doi.org/10.5281/zenodo.5986980