Logo do repositório
 
Publicação

Seed coat colour as a driver of antioxidant and morphological variation in portuguese common bean germplasm

2026-06-01Atas de conferência Acesso aberto
Ver registo simples
dc.contributor.authorSantos, Jacinta
dc.contributor.authorVaz, Madalena
dc.contributor.authorPereira, Sara
dc.contributor.authorMachado, Joana
dc.contributor.authorVasconcelos, Marta W.
dc.contributor.authorBarata, Ana Maria
dc.contributor.authorPereira, Maria da Graça
dc.contributor.authorSantos, Carla S.
dc.date.accessioned2026-06-16T15:28:57Z
dc.date.available2026-06-16T15:28:57Z
dc.date.issued2026-06-01
dc.description.abstractLegumes play a critical role in sustainable food systems, yet many traditional varieties remain underutilised. In Portugal, despite the wide diversity of Phaseolus vulgaris L. landraces preserved in germplasm collections, consumer demand is largely restricted to a few commercial varieties, contributing to the loss of local genetic resources. To address this gap, a Portuguese common bean collection comprising 259 accessions, was evaluated with a focus on seed coat colour (light, dark, and mix). Morphological descriptors (seed weight and width), seed mineral (calcium, potassium, magnesium, iron, zinc and phosphate), protein content, starch, and bioactive compounds (phenolics, condensed tannins, DPPH, saponins, phytic acid) composition were quantified. Seed coat colour significantly affected antioxidant related traits. Dark seeds exhibited the highest phenolic content (1.05±0.35 mg GAE/g DW), condensed tannins (0.95±0.38 mg CE/g DW), and DPPH activity (5.36±1.72 μmol TE/g DW), all significantly greater than light seeds (phenolics 0.69±0.28 mg GAE/g DW; tannins 0.39±0.43 mg CE/g DW; DPPH 2.85±4.15 μmol TE/g DW). Mix coloured seeds showed significantly larger seed weight (53.18±13.96 g/100 seeds) and width (6.51±0.77 mm), reflecting distinct morphological clustering pattern. In contrast, minerals, protein and starch did not differ across colours. Correlation analysis confirmed that Dark seeds aligned with antioxidant traits (DPPH r=0.59 and phenolics r=0.47, P-value<0.05), while Mix seeds aligned with seed size. Overall, seed coat colour is a reliable visual indicator of antioxidant potential, offering an immediate and low cost criterion to identify nutritionally superior Portuguese landraces and broaden consumer and breeding choices beyond the narrow range of currently marketed varieties.eng
dc.identifier.other26d24cf1-7e57-4d11-bf68-e577e28c7bec
dc.identifier.urihttp://hdl.handle.net/10400.14/58137
dc.language.isoeng
dc.peerreviewedyes
dc.publisherUniversity of Zagreb
dc.rights.uriN/A
dc.subjectAntiradical capacityeng
dc.subjectGermplasm characterisationeng
dc.subjectNutritional profilingeng
dc.subjectPhytochemical diversityeng
dc.titleSeed coat colour as a driver of antioxidant and morphological variation in portuguese common bean germplasm
dc.typeconference proceedings
dspace.entity.typePublication
oaire.citation.endPage115
oaire.citation.startPage115
oaire.citation.title5th International Legume Society Conference: book of abstracts
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85

Ficheiros

Principais
A mostrar 1 - 1 de 1
Miniatura
Nome:
152271944.pdf
Tamanho:
1.67 MB
Formato:
Adobe Portable Document Format
Ver/Abrir

Coleções

CBQF - Livros e Partes de Livros / Books and Books Parts