689 research outputs found
Teor, conteúdo, eficiência de absorção, transporte e utilização de nitrogênio e fósforo pelo algodoeiro cultivado sob diferentes concentrações de BORO e ZINCO.
Investigation of nitride layers deposited on annealed AISI H13 steel by die-sinking electrical discharge machining
Eficiência de absorção, translocação e utilização de nitrogenio por genótipos de Gossypium barbadense cultivado sob diferentes doses de fosforo.
Unveiling the bioactive potential of fresh fruit and vegetable waste in human health from a consumer perspective
Food supply disruption and shortage verified during the current pandemic events are a
scenario that many anticipate for the near future. The impact of climate changes on food production,
the continuous decrease in arable land, and the exponential growth of the human population are
important drivers for this problem. In this context, adding value to food waste is an obvious strategy
to mitigate food shortages, but there is a long way to go in this field. Globally, it is estimated that
one-third of all food produced is lost. This is certainly due to many different factors, but the lack
of awareness of the consumer about the nutritional value of certain foods parts, namely peels and
seeds, is certainly among them. In this review, we will unveil the nutritional and bioactive value of
the waste discarded from the most important fresh fruit and vegetables consumed worldwide as a
strategy to decrease food waste. This will span the characterization of the bioactive composition of
selected waste from fruits and vegetables, particularly their seeds and peels, and their possible uses,
whether in our diet or recycled to other ends.info:eu-repo/semantics/publishedVersio
Optimization of electrophoretic separations of thirteen phenolic compounds using single peak responses and an interactive computer technique
An interactive computer method is proposed for the electrophoretic separation of 13 phenolic compounds from extra-virgin olive oil using single peak response values. A central composite design was executed for optimization of the sodium tetraborate concentration, pH and applied voltage. Statistical models were determined for eight resolution responses and thirteen effective mobilities. Six of the resolution models had highly significant ANOVA lack of fit values, limiting their accuracies for use in Derringer´s desirability function search for optimal separation conditions. None of the 13 effective mobility models suffered from significant lack of fit. Since it is not possible to define effective mobility target values for the desirability function, an interactive computer program developed in our laboratories was applied to the single peak models. Mouse or cursor movements were executed to define experimental conditions in model simulations of the electropherogram. These simulations resulted in superior peak separations, especially for the apigenin and luteolin peaks, in 35 min, compared with those obtained in close to 50 min with the resolution models. Verification experiments performed 2 and 3 years later confirmed the robustness of the models.Um método computacional interativo foi desenvolvido para a separação eletroforética de 13 compostos fenólicos de azeite de oliva extravirgem, usando valores individuais de resposta para cada pico. Um planejamento composto central foi executado para a otimização da concentração de tetraborato de sódio, pH e voltagem aplicada. Foram determinados modelos estatísticos para oito respostas de resolução e treze de mobilidades efetivas. Seis modelos de resolução apresentaram significativa falta de ajuste após ANOVA, o que limitou sua acurácia para uso nas funções de desejabilidade de Derringer-Suich na busca pelas condições ótimas de separação. Nenhum dos 13 modelos de mobilidade efetiva apresentou falta de ajuste significativa. Visto que não foi possível definir valores alvos para as funções de desejabilidade, um programa de computador interativo, desenvolvido em nossos laboratórios, foi aplicado aos modelos individuais de cada pico. Movimentos do mouse ou do cursor foram executados para definir as condições experimentais nas simulações dos eletroferogramas. Essas simulações resultaram em uma melhor separação dos picos, especialmente para os picos de apigenina e luteolina, em 35 min, comparado aos obtidos para cerca de 50 min com os modelos de resolução. Experimentos de verificação executados 2 e 3 anos depois confirmaram a robustez dos modelos.17441753Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES
Species of Botryosphaeriaceae associated on mango in Brazil.
The aim of the present study was to assess diversity in the Botryosphaeriaceae on trees and fruit of mango (Mangifera indica L.) in a semi-arid region in northeastern Brazil in which most exported fruit in the country are produced
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