Compostos bioativos presentes em couve-manteiga (Brassica oleracea L.) em três estádios de desenvolvimento e comparação das suas capacidades antioxidantes

Abstract

Young vegetables are gaining more and more popularity on a world scale, not only because they are highly nutritious foods, but because they constitute a new ingredient, being used to improve the visual aspect of salads and other garnishes and to embellish a wide variety of dishes. This study aimed to compare the content of bioactive compounds and the antioxidant capacity of kale (Brassica oleracea L.) in three growth stages: microgreen (15 days after sowing), baby leaf (40 days after sowing) and adult (60 days after sowing). The cultivation was carried out in trays for the production of microgreens, later a portion was transplanted in beds to obtain baby leafs and plants in an adult stage. The analyzes performed were: total carotenoids, mineral profile, phenolic compounds and antioxidant capacity. Chemical analyzes showed, in general, that vegetables in microgreens and baby leaf stages had higher levels of micronutrients and antioxidant capacity by the phosphomolybdenum method than the plant in the adult (commercial) stage, however, for phenolic compounds and total carotenoids, the adult plant had higher levels than baby leaf and microgreens. It should be noted that baby leaf and microgreens are usually eaten raw and whole, avoiding losses and obtaining a better use of nutrients present in these vegetables. Thus, the consumption of vegetables harvested at early stages may contribute to a greater supply of nutrients and bioactive compounds in the diet.

Genetic variability among broccoli genotypes based on biochemical and molecular traits

“…We concluded that, in addition to the genetic variability existing among genotypes, the cultivation system also influences the concentration of bioactive compounds. Moreover, other factors such as part of the plant, phenological stage and crop management can also influence the concentration of these bioactive compounds (Rigueira et al, 2016;Batista et al, 2017;Nasser et al, 2020;Zanzini et al, 2020). The two first main components (PC1 and PC2) showed a total of 70.7 and 21.8% of total variation, respectively (Figure 2).…”

Interaction between Castor Bean oil and Jatropha oil to Control the Brassica Aphids

“…acephala) is one of Brazil's most cultivated and consumed plant. It contains a high concentration of nutrients, namely iron, vitamins, and vegetable fibers that contribute to better intestinal flow functioning, regulate blood sugar and help lower cholesterol [4][5][6].…”