Browsing by Author "Vasconcelos, Marta Wilton"
Now showing 1 - 9 of 9
Results Per Page
Sort Options
- E hoje, já comeu feijão? O papel das leguminosas em dietas mais sustentáveisPublication . Vasconcelos, Marta Wilton
- Editorial: improving the nutritional content and quality of plants: promises, achievements, and future challenges, volume IIPublication . Ricachenevsky, Felipe Klein; Vasconcelos, Marta Wilton; Shou, Huixia; Johnson, Alexander Arthur Theodore; Sperotto, Raul Antonio
- Editorial: transitions to sustainable food-and feed-systemsPublication . Vasconcelos, Marta Wilton; Balázs, Bálint; Kelemen, Eszter; Squire, Geoffrey R.; Iannetta, Pietro P. M.
- Effects of different Fe supplies on mineral partitioning and remobilization during the reproductive development of rice (Oryza sativa L.)Publication . Sperotto, Raul Antonio; Vasconcelos, Marta Wilton; Grusak, Michael Andrew; Fett, Janette PalmaBackground: Minimal information exists on whole-plant dynamics of mineral flow through rice plants and on the source tissues responsible for mineral export to developing seeds. Understanding these phenomena in a model plant could help in the development of nutritionally enhanced crop cultivars. A whole-plant accumulation study, using harvests during reproductive development under different Fe supplies, was conducted to characterize mineral accumulation in roots, non-flag leaves, flag leaves, stems/sheaths, and panicles of Kitaake rice plants. Results: Low Fe supply promoted higher accumulation of Zn, Cu and Ni in roots, Mn, Ca, Mg and K in leaves and Zn in stems/sheaths and a smaller accumulation of Fe, Mn and Ca in roots and Zn and Ni in leaves. High Fe supply promoted higher accumulation of Fe in roots and Zn in leaves and a smaller accumulation of Fe in leaves and stems/sheaths and Zn, Cu and K in roots. Correlation analyzes indicated that fluctuations in Mn-Ca, Zn-Cu, Zn-Ni, Cu-Ni, Mo-S, Ca-Mg, Cu-Mn and Cu-Mg concentrations in response to different Fe supplies were positively correlated in at least four of the five organs analyzed. Conclusions: Mineral content loss analysis indicated that mineral remobilization from vegetative organs can occur in rice plants; however, for seeds to acquire minerals, vegetative remobilization is not absolutely required. Also, mineral remobilization from vegetative tissues in rice was greatly dependent of plant Fe nutrition. Remobilization was observed for several minerals from flag leaves and stems/sheaths, but the amounts were generally far below the total mineral accretion observed in panicles, suggesting that continued uptake and translocation of minerals from the roots during seed fill are probably more important than mineral remobilization.
- Influence of planting location and growing season on the nutritional quality of lupinPublication . Osorio Pérez, Jazmín; Silva, Marta Nunes da; Santos, Carla Sancho dos; Rubiales, Diego; Barilli, Eleonora; Vasconcelos, Marta WiltonLupin is a highly nutritious legume crop, particularly in terms of protein, and certain accessions can accumulate up to 40% of this macronutrient. They are also rich sources of zinc (Zn), magnesium (Mg), iron (Fe), potassium (K) and calcium (Ca) along with vitamin A, B and E (Bryant et al., 2022). Nutritional quality has often been studied in germplam accessions, but environmental effects has often been neglected. This research seeks toquantify the nutrient accumulation variations that could result in lupins when altering the crop location and over two different growing seasons.
- Intraspecific effects of short-term elevated atmospheric co2 in yield and nutritional profile of phaseolus vulgarisPublication . Duarte, Rafael D. C.; Silva, Marta Nunes da; Quirós-Vargas, Juan; Muller, Onno; Vasconcelos, Marta WiltonLegumes are key contributors of essential nutrients for human health, namely iron (Fe) and zinc (Zn), but they are one of the most sensitive plant families to elevated concentrations of atmospheric CO2 (eCO2), a major threat to global agriculture and human nutrition. Therefore, unravelling the effects underlying eCO2 responses on biomass yield and nutritional value is of utmost importance to anticipate potential negative effects on human nutrition and expedite mitigation strategies.
- Lentil (Lens culinaris L.) intraspecific nutritional variability and development of a lentil-based snackPublication . Geraldo, Rafaela A. F.; Silva, Marta Nunes da; Santos, Carla Sancho dos; Pinto, Elisabete; Vasconcelos, Marta WiltonLentils (Lens culinaris L.) are among the oldest crops cultivated by humans. They are excellent sources of minerals, protein/amino acids, fatty acids, fibers, carbohydrates, and phytochemicals. Compared to other legumes, lentils have a faster preparation time, low phytic acid content, high arginine, and total phenolic content of antioxidant flavonoids. Besides, their low glycemic index helps avoid peaks in blood glucose, improving metabolic control. Although lentils have these benefits, their consumption in Portugal is lower than desirable, highlighting the need for greater promotion of this legume and the development of new value-added lentil-based snacks.
- 'Rocha' pear mineral composition relation with quality traitsPublication . Dias, Cindy Leonor Alves; Rodrigues, Ana Cristina; Vasconcelos, Marta Wilton; Ferrante, António; Pintado, ManuelaOrchard's variability is mainly affected by two preharvest factors: cultural practices and climate conditions. In the case of 'Rocha' pear, a native cultivar from Portugal with PDO, it is produced by different producers in the region that although influenced by different factor try to guarantee the expected quality1 . However, even at the same geographic region, dissimilarities between orchards exist. It is unclear whether differences are due to the producer's practices and/or biological responses to the abiotic factors, making the orchard management difficult. Although this appears to be a bewildering complex of variables, Bramlage (1993) suggested that mineral composition at harvest accounts for most fruit variability between orchards. It is known that nutrients required are in the soil and supply by fertigation and foliar application3 In this way, fruit mineral characterization at harvest can give some information on how orchard factors interact with nutrients and consequently explain some physicochemical and ripening differences4 . The objective of this study was to investigate differences in mineral composition of three 'Rocha' pear orchards from one of the most representative PDO locations and relate it with quality and ripening traits.
- Substitution of beef with pea protein reduces the environmental footprint of meat balls whilst supporting health and climate stabilisation goalsPublication . Saget, Sophie; Costa, Marcela; Santos, Carla Sancho; Vasconcelos, Marta Wilton; Gibbon, James; Styles, David; Williams, MichaelRecent environmental footprint comparisons between meat and plant-based meat analogues do not consider nutritional density holistically, nor the high carbon opportunity costs (COC) of land requirements, which are critical in terms of climate stabilisation targets. We performed an attributional life cycle assessment (LCA) of a 100 g serving of cooked protein balls (PPBs) made from peas (Pisum sativum), and Swedish-style beef meatballs (MBs) made from Irish or Brazilian beef. Per serving, PPB production and consumption was associated with lower environmental burdens across all 16 categories assessed. Global warming, acidification, and land use burdens of PPBs were at least 85%, 81%, and 89% smaller, respectively, than MBs. The scale of environmental advantage was sensitive to the allocation method, with biophysical allocation across cattle co-products decreasing MB burdens by at least 35%, 38%, and 46% in the acidification, climate change, and land use categories, respectively. Furthermore, PPBs have a higher nutritional density than MBs, and hence their environmental footprint per unit of nutrition was considerably lower across all 16 impact categories. Per Nutrient Density Unit, global warming, acidification, and land use burdens of PPBs were at least 89%, 87%, and 93% smaller, respectively, than MBs. Results were tested with Monte Carlo simulations and a modified null hypothesis significance test, which supported the main findings. Finally, when COC of land was factored in, the climate advantage of PPBs extended greatly. Assuming MBs equivalent to just 5% of German beef consumption are replaced by PPBs, total carbon savings including COC could amount to 8 million tonnes CO2e annually, an amount equal to 1% of Germany's annual GHG emissions. Therefore, this study highlights the potential of PPBs to meet health and climate neutrality objectives.