Journal
MOLECULES
Volume 25, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/molecules25051133
Keywords
canned chub mackerel; seaweeds; minerals; Portuguese north-central coast
Funding
- project iCanSea-Conservas com macroalgas para diferenciacao nutricional e sensorial - Portugal 2020 under the Programa Operacional Competitividade e Internacionalizacao [3171/Portugal 2020]
- Fundacao para a Ciencia e a Tecnologia (FCT) [UID/QUI/50006/2019]
- FEDER, under Programme PT2020 [UID/QUI/50006/2019]
- project Qualidade e Seguranca Alimentar-uma abordagem (nano)tecnologica [NORTE-01-0145-FEDER-000011]
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This study aimed to develop new canned chub mackerel products incorporating edible seaweeds (Ascophyllum nodosum, Fucus spiralis, Saccorhiza polyschides, Chondrus crispus, Porphyra sp. and Ulva sp.) harvested in the Portuguese North-Central coast, with simultaneous sensory improvement and minerals enrichment. Two processes were compared, namely the addition of seaweeds in i) the canning step and ii) in the brining step (as the replacement for salt). The concentrations of four macrominerals (Na, K, Ca and Mg), chloride, and twelve trace elements (Co, Cu, Fe, I, Li, Mn, Mo, Rb, Se, Sr, V and Zn) were determined by high-resolution continuum source flame atomic absorption spectrometry (HR-CS-FAAS) and inductively coupled plasma mass spectrometry (ICP-MS), respectively. Results showed that canned chub mackerel incorporating C. crispus and F. spiralis was found to be the preferred sensory option, also exhibiting contents enriched with Cl, Co, Cu, Fe, I, Li, Mg, Mn, Mo, Na, Rb, Se, and Sr. This effect was more pronounced when both seaweed species were added to replace the salt added in the brining step.
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