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Measuring minerals in pseudocereals using inductively coupled plasma optical emission spectrometry

2025-02-08Artigo científico Acesso aberto
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dc.contributor.authorNascimento, Ana C.
dc.contributor.authorMotta, Carla
dc.contributor.authorRego, Andreia
dc.contributor.authorDelgado, Inês
dc.contributor.authorSantiago, Susana
dc.contributor.authorAssunção, Ricardo
dc.contributor.authorMatos, Ana Sofia
dc.contributor.authorSantos, Mariana
dc.contributor.authorCastanheira, Isabel
dc.contributor.institutionUNIDEMI - Unidade de Investigação e Desenvolvimento em Engenharia Mecânica e Industrial
dc.contributor.institutionDEMI - Departamento de Engenharia Mecânica e Industrial
dc.contributor.institutionCentro de Investigação em Saúde Pública (CISP/PHRC)
dc.contributor.institutionComprehensive Health Research Centre (CHRC) - Pólo ENSP
dc.contributor.institutionMARE - Centro de Ciências do Mar e do Ambiente
dc.contributor.pblMDPI - Multidisciplinary Digital Publishing Institute
dc.date.accessioned2025-06-30T21:17:11Z
dc.date.available2025-06-30T21:17:11Z
dc.date.issued2025-02-08
dc.descriptionPublisher Copyright: © 2025 by the authors.
dc.description.abstractPseudocereals have gained attention due to their adaptability to different climates, high nutritional value, and suitability for gluten-free and plant-based diets. However, a challenge lies in the necessary adaptations in the diet pathways, mainly due to the lack of matrix-matching metrological tools. To address this problem, we developed a classification system to support laboratory decisions without shaped Proficiency Testing (PT) or Certified/Standard References Material. This system evaluates method performance through limit of detection (LOD), maximum uncertainty, and statistical comparison. For that matter, the mineral contents (Cu, Mn, Fe, Zn, Mg, P, Ca, K, and Na) of quinoa (Chenopodium quinoa), amaranth (Amaranthus caudatus), and buckwheat (Fagopyrum esculentum) were determined, using three different digestion methods, including dry-ashing, microwave, and graphite block acid digestion. A decision was reached concerning the optimal digestion method to be employed, with the results classified into three categories: (i) “rejected if results failed in two categories; (ii) “use with caution” if results were not satisfactory in one category; or (iii) “accepted”, if the results passed in all the categories. The system efficacy was exemplified by the effectiveness of dry-ashing and graphite block acid digestion by comparison with microwave digestion. Neither dry-ashing nor graphite block acid digestion can be recommended as an alternative method to the microwave digestion method when all the prioritized nutrient minerals are understudied. Although the microwave method is preferable for multi-elemental analysis, it is possible to obtain, with caution, comparable results from all the digestion methods if a higher relative combined uncertainty is defined (target uncertainty < 11%) under the assumption that this is suitable for the study.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent15
dc.format.extent804459
dc.identifier.doi10.3390/foods14040565
dc.identifier.issn2304-8158
dc.identifier.otherPURE: 114768797
dc.identifier.otherPURE UUID: ace0fbc8-9cae-4049-94b6-2296fa5e6a83
dc.identifier.otherScopus: 85218886112
dc.identifier.otherWOS: 001431256600001
dc.identifier.otherPubMed: 40002009
dc.identifier.otherPubMedCentral: PMC11854432
dc.identifier.otherORCID: /0000-0002-4659-0275/work/187006193
dc.identifier.urihttp://hdl.handle.net/10362/184657
dc.identifier.urlhttps://www.scopus.com/pages/publications/85218886112
dc.identifier.urlhttps://www.webofscience.com/wos/woscc/full-record/WOS:001431256600001
dc.language.isoeng
dc.peerreviewedyes
dc.subjectDigestion methods
dc.subjectDry-ashing
dc.subjectElemental content
dc.subjectGraphite block acid digestion
dc.subjectMicrowave
dc.subjectPseudocereals
dc.subjectFood Science
dc.subjectMicrobiology
dc.subjectHealth(social science)
dc.subjectHealth Professions (miscellaneous)
dc.subjectPlant Science
dc.subjectSDG 3 - Good Health and Well-being
dc.titleMeasuring minerals in pseudocereals using inductively coupled plasma optical emission spectrometryen
dc.title.subtitlewhat is the optimal ddigestion method?en
dc.typejournal article
degois.publication.firstPage1
degois.publication.issue4
degois.publication.lastPage15
degois.publication.titleFoods
degois.publication.volume14
dspace.entity.typePublication
rcaap.rightsopenAccess

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