Abstract
The production of seeds with high molybdenum (Mo) content is a practical and inexpensive way of supplying its plants with this micronutrient. The objectives of this study were to estimate the relation among Mo rates sprayed over common bean plants cultivated in soil with pH of 6.1 and Mo contents in seeds of the Ouro Negro cultivar, and evaluate the performance of plants originated from those seeds. For that, two trials were carried out at the Zona da Mata region, Minas Gerais state, Brazil. In the first trial, plants were sprayed with 0 g ha-1, 90 g ha-1, 250 g ha-1, 500 g ha-1, 750 g ha-1, and 1,000 g ha-1 of Mo and the seeds had their Mo contents evaluated. In the second one, plants from seeds with four Mo contents (0.262 ±0 .060 ?g, 1.595 ± 0.281 ?g, 1.960 ± 0.804 ?g, or 2.648 ± 0.190 ?g), combined with either 0 g ha-1 or 90 g ha-1 of Mo were evaluated. The Mo content of seeds increased 0.217 µg, for each 100 g increase in the Mo rate. For 90 g ha-1 of Mo, there was no significant difference on chlorophyll readings, in response to the seed Mo content. Without Mo, the chlorophyll readings, at 40 DAE, increased linearly with the increase of seed Mo content. KEY-WORDS: Phaseolus vulgaris; chlorophyll meter; seed molybdenum content.
Highlights
The germ fraction with maize pericarp (GMP), obtained from the degermination of this cereal, presents a high nutrient density, it is underused as food
A fração gérmen com pericarpo de milho (GPM) foi acrescentada às formulações, na proporção de 40% e 50%, em substituição à farinha de trigo e fécula de mandioca
Na fração GPM, constataram-se altos teores de lipídios (18%) e de fibra alimentar total (29%), e conteúdo considerável de proteína (12%)
Summary
The germ fraction with maize pericarp (GMP), obtained from the degermination of this cereal, presents a high nutrient density, it is underused as food. A fração gérmen com pericarpo de milho (GPM), obtida por meio da degerminação deste cereal, possui alta densidade de nutrientes, contudo, ainda é subutilizada na alimentação humana. Este trabalho teve como objetivos desenvolver biscoitos tipo cookie, enriquecidos com GPM, avaliar a aceitabilidade e determinar sua composição centesimal. O emprego da fração gérmen com pericarpo de milho, em produtos alimentícios, possibilita aumento do teor de fibra alimentar e redução do valor energético dos produtos. Além da alta densidade dos referidos nutrientes, a fração gérmen com pericarpo de milho contém proteínas com melhor perfil aminoacídico e, portanto, melhor qualidade nutricional, em relação às proteínas do grão inteiro (Wilson 1999, Brito et al 2005, Naves et al 2011). Considerando-se a composição em nutrientes da fração gérmen com pericarpo de milho e as novas tendências alimentares, em busca de alimentos mais nutritivos e saudáveis, este trabalho teve os objetivos de desenvolver biscoitos tipo cookie, enriquecidos com a fração gérmen com pericarpo de milho, e analisar a aceitabilidade e a composição química centesimal dos biscoitos
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