Cadmium partitioning between hulls and kernels in three sunflower varieties: consequences for food/feed chain safety.
Agricultural soil contamination
ES Biba
Extrasol
Genetic variability
Oil seed
Regulation limit
Vellox
Journal
Environmental science and pollution research international
ISSN: 1614-7499
Titre abrégé: Environ Sci Pollut Res Int
Pays: Germany
ID NLM: 9441769
Informations de publication
Date de publication:
26 Dec 2023
26 Dec 2023
Historique:
received:
19
07
2023
accepted:
16
12
2023
medline:
26
12
2023
pubmed:
26
12
2023
entrez:
26
12
2023
Statut:
aheadofprint
Résumé
Contamination of sunflower seeds with soil Cd is an important issue for food and feed because this species strongly accumulates this metal. The present work reports that seeds from three sunflower varieties (ES Biba, Extrasol, Vellox) cultivated in the field in a calcareous agricultural soil having a moderately high Cd content (1 mg Cd/kg) had Cd contents of 0.84, 0.88 and 0.76 mg Cd/kg, respectively, all exceeding the regulation limit of 0.5 mg Cd/kg seeds for human food. On average, for the three varieties, washing seeds did not affect their total Cd contents but slightly increased the Cd in the kernels at the expense of that in hulls. Despite the Cd content of the whole seeds not differing between the varieties, the Cd fraction in the edible kernel differed significantly between varieties from 78 to 87% of the total seed Cd. The results of this study suggest that (i) the size of the kernel, relative to that of the hull, may affect the dilution of Cd in kernel tissues and (ii) there might be genetic variability for the capacity of transfer of Cd from the hull to the kernel. This opens the perspective to increase food safety by selecting sunflower genotypes that retain more Cd into the hull and transfer less of it to the edible kernel.
Identifiants
pubmed: 38147238
doi: 10.1007/s11356-023-31631-0
pii: 10.1007/s11356-023-31631-0
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
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