Glucosinolates, Ca, Se Contents, and Bioaccessibility in Brassica rapa Vegetables Obtained by Organic and Conventional Cropping Systems

Autor: Sara Obregón Cano, Fernando Cámara-Martos, Antonio De Haro-Bailón
Přispěvatelé: Universidad de Córdoba (España), Junta de Andalucía, European Commission
Rok vydání: 2022
Předmět:
Zdroj: Foods 11(3), 350 (2022)
Helvia. Repositorio Institucional de la Universidad de Córdoba
instname
Foods, Vol 11, Iss 350, p 350 (2022)
Foods; Volume 11; Issue 3; Pages: 350
Popis: In northwest Spain and Portugal, there is a long tradition of cultivating B. rapa subsp. rapa to obtain turnip greens and turnip tops. Brassica rapa L. subsp. rapa (turnip greens and turnip tops) were grown under conventional and organic conditions in two Farms in southern Spain. Glucosinolatescontents were higher in Brassicas grown under conventional conditions than those grown under organic ones. Average Ca total and bioaccessible contents ranged between 14.6-23.4 mg/g; 8.9-12.0 mg/g for turnip greens and 6.4-8.9 mg/g; 4.3-4.8 mg/g for turnip tops. According to these concentrations, an intake of 100-200 g (fresh weight) of the studied Brassica rapa fulfills Ca dietary reference intakes (DRI) (considering the total content data) and complies with 72-100% Ca DRI percentage (considering the bioaccessible data). Se concentrations ranged between 0.061-0.073 µg/g and 0.039-0.053 µg/g for turnip greens and turnip tops respectively. Se bioaccessibility values were high, with percentages of around 90%. Finally, the total glucosinolate content ranged between 13.23-21.28 µmol/g for turnip greens and 13.36-20.20 µmol/g for turnip tops. In general, the bioaccessibility of the total glucosinolates analyzed in this study was high, with mean values of around 73% and 66% for turnip greens and turnip tops, respectively. Brassica rapa vegetables grown under both organic and conventional conditions in southern Spain are an excellent dietary source of Ca, Se, and glucosinolates with a high bioaccessibility.
This research was funded by the Project “Desarrollo de Alimentos Funcionales y Nutracéuticos con Efectos Antioxidantes, Antitumorales y Cardiosaludables a partir de una Selección de Crucíferas Mediterráneas” Ref. UCO-1261749 of the University of Cordoba-Andalusia Government, which was co-financed by the European Regional Development Fund (ERDF).
Databáze: OpenAIRE
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