Human milk is the ideal nutritional support for premature neonates. Considering the need for aggregating nutritional value to human milk provided to such vulnerable group of infants, human milk was concentrated by the...Human milk is the ideal nutritional support for premature neonates. Considering the need for aggregating nutritional value to human milk provided to such vulnerable group of infants, human milk was concentrated by the block freeze concentration technique. The effects of freeze concentration on the physicochemical properties, the efficiency of the process, color parameters, and the density and dynamic viscosity of human milk were assessed. The freeze concentration technology was used to successfully concentrate human milk to a factor equal to 180.48% and 72% of total solid retention in the second stage of freeze concentration. The values observed in the concentrates for the biochemical properties showed that the fraction of concentrated fluid human milk of the second stage (C2) presented elevated amounts of carbohydrates, protein and energy. The elevated caloric value observed in the ice fraction of the first stage (I1) refers to the retention of lipids in it. When added to human milk, C2 and I1 may satisfy the special requisites of nutrients and energy to guarantee the growth and development of preterm neonates.展开更多
Food by-products containing bioactive substances, such as phenolic compounds, have garnered attention due to the possibility to increase the value of what would otherwise be considered residue. The present work sought...Food by-products containing bioactive substances, such as phenolic compounds, have garnered attention due to the possibility to increase the value of what would otherwise be considered residue. The present work sought to evaluate the extraction of phenolic compounds and their bioaccessibility from pinhão “comum” (Araucaria angustifolia var. angustifolia) and pinhão “macaco” (Araucaria angustifolia var. indehiscens) cooking water extracts during in vitro simulated gastrointestinal conditions. Our findings indicate that changes occurred depending on the type of extract and the gastrointestinal step. Although both of the evaluated pinhão extracts displayed bioaccessible phenolic compounds, the gradual bioaccessibility decrease of pinhão “macaco” extract during in vitro simulated gastrointestinal condition steps, characterizes this extract as the one with the best functional property. The functional property is related to antioxidant properties which are able to generate protective effects against various diseases.展开更多
文摘Human milk is the ideal nutritional support for premature neonates. Considering the need for aggregating nutritional value to human milk provided to such vulnerable group of infants, human milk was concentrated by the block freeze concentration technique. The effects of freeze concentration on the physicochemical properties, the efficiency of the process, color parameters, and the density and dynamic viscosity of human milk were assessed. The freeze concentration technology was used to successfully concentrate human milk to a factor equal to 180.48% and 72% of total solid retention in the second stage of freeze concentration. The values observed in the concentrates for the biochemical properties showed that the fraction of concentrated fluid human milk of the second stage (C2) presented elevated amounts of carbohydrates, protein and energy. The elevated caloric value observed in the ice fraction of the first stage (I1) refers to the retention of lipids in it. When added to human milk, C2 and I1 may satisfy the special requisites of nutrients and energy to guarantee the growth and development of preterm neonates.
文摘Food by-products containing bioactive substances, such as phenolic compounds, have garnered attention due to the possibility to increase the value of what would otherwise be considered residue. The present work sought to evaluate the extraction of phenolic compounds and their bioaccessibility from pinhão “comum” (Araucaria angustifolia var. angustifolia) and pinhão “macaco” (Araucaria angustifolia var. indehiscens) cooking water extracts during in vitro simulated gastrointestinal conditions. Our findings indicate that changes occurred depending on the type of extract and the gastrointestinal step. Although both of the evaluated pinhão extracts displayed bioaccessible phenolic compounds, the gradual bioaccessibility decrease of pinhão “macaco” extract during in vitro simulated gastrointestinal condition steps, characterizes this extract as the one with the best functional property. The functional property is related to antioxidant properties which are able to generate protective effects against various diseases.
