Nutritional profile of the Portuguese cabbage (Brassica oleracea L var. costata) and its relationship with the elemental soil analysis
Maria Fernanda Pessoa, Paula Scotti‐Campos, Isabel P. Pais, Ana Feteiro, Daniela Sílvia de Oliveira Canuto, Manuela Simes, João Pelica, Inês Maria Mantinhas Pataco, Vânia Ribeiro, Fernando H. Reboredo, José C. Ramalho, Fernando C. Lidon
Emirates Journal of Food and Agriculture
Urban Farm DB summary
The nutritional profile of "Tronchuda" or Portuguese cabbage produced in urban horticultures from 4 regions of mainland Portugal was studied, along with elemental soil analysis of each sampling site. This study revealed significant interactions between essential elements in soil and plant leaves, the edible part of the plant. In general, these leaves contained poor concentrations of Fe and Si, while Mn was absent, regardless of the sampling sites. Conversely, Ca levels were abundant, ranging between 3.3% and 3.9%. Soils from CAP showed a nutrient exhaustion of Fe, Mn, and Mo, although the highest protein and sucrose contents in the leaves were observed in plants growing in those soils. Protein, lipids, and carbohydrates concentrations differed according to sampling site, reflecting different production practices.