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Search Results: 1 - 10 of 6713 matches for " Fernanda Zaratini;Fadini "
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Influência de diferentes agentes de corpo nas características reológicas e sensoriais de chocolates diet em sacarose e light em calorias
Gomes, Cristiane Rodrigues;Vissotto, Fernanda Zaratini;Fadini, Ana Lúcia;Faria, Eliete Vaz de;Luiz, Alexandra Motta;
Ciência e Tecnologia de Alimentos , 2007, DOI: 10.1590/S0101-20612007000300029
Abstract: a study was made of various bulk agents as sucrose substitutes in the formulation of chocolate, aiming to obtain a diet product in terms of sucrose and a light product in terms of calories (25% fewer calories than standard formulations containing sucrose) with good sensorial acceptance. the bulk agents used in this study were polydextrose, inulin, fructo-oligosaccharides - fos, lactitol and maltitol. sucralose was used as a high intensity sweetener. the light chocolates were analyzed for moisture content (karl fischer), particle size (digital micrometer), and rheological properties (casson plastic viscosity, hca, and yield strength, tca). the moisture content of the light chocolate varied from 1.23 to 2.12%, while particle size varied from 19 to 24 μm, hca from 6.60 to 11.00 pa.s, and tca from 0.05 to 1.10 pa. the formulations containing polydextrose, polydextrose and lactitol, and polydextrose and maltitol were selected for a sensory analysis due to their good technological performance and adequate machinability of the chocolate mass in the different stages of the process. the sensory analysis revealed no statistically significant difference (p > 0.05) in the three evaluated formulations in terms of aroma, hardness, melting in the mouth and flavor. there was no statistically significant difference (p > 0.05) in the intention to purchase the three chocolate formulations, although a preference was shown for the formulation containing polydextrose (32.60%) and maltitol (15.57%).
Physico-Chemical Properties of Milk Whey Protein Agglomerates for Use in Oral Nutritional Therapy  [PDF]
Luciano Bruno de Carvalho-Silva, Fernanda Zaratini Vissotto, Jaime Amaya-Farfan
Food and Nutrition Sciences (FNS) , 2013, DOI: 10.4236/fns.2013.49A2010
Abstract:

Agglomerates based on milk whey proteins and modified starch (MS) were developed for patients with dysphagia. Calcium caseinate (CaCas), whey protein isolate (WPI), concentrate (WPC) and hydrolysate (WPH) were used. The sources were agglomerated with the MS and an increase in the porosity and viscosity of the agglomerates were observed. In all the systems evaluated, the WPI agglomerate at a concentration of 112 g/L showed a viscosity between 2122 and 5110 cP, and the agglomerates of WPC and WPH between 1115 - 2880 cP and 2600 - 6651 cP, respectively. CaCas exhibited high values in water and milk of 3200 cP and 6651 cP, respectively, and low values of 640 cP in juice. In sensory tests, the 70% WPI: 30% MS juice obtained a score 6.97, an improvement in relation to the other agglomerates, but not differing (p = 0.681) from the commercial thickener, 6.91 (p = 0.380). Based on these results, the 70% WPI: 30% MS was suggested for use in the nutritional therapy of patients with dysphagia.

Alimento para fins especiais: ingredientes, elabora??o e aglomera??o
Azevedo, Luciana;Mileib, Christiane;Vissotto, Fernanda Zaratini;Carvalho-Silva, Luciano Bruno de;
Revista de Nutri??o , 2011, DOI: 10.1590/S1415-52732011000200012
Abstract: objective: this study aimed to develop a nutritionally complete enteral diet, with adjusted agglomeration conditions, and determine the physical and chemical characteristics required by this special food. methods: the ingredients were maltodextrin, canola oil, medium-chain triglycerides, acacia gum, inulin, fructooligosaccharides, milk whey protein, soy protein isolate, vitamins and minerals. after the quantities and proportions of the ingredients were adjusted, the formula was agglomerated and analyzed for percent composition, moisture, apparent density, water activity, viscosity and color. results: the resulting diet contained 1kcal.ml-1and normal protein (3.9g.100ml-1) and fat (3.9g.100ml-1) levels. after agglomeration, the following results were obtained: moisture 0.262g.s-1, apparent density 0,317g.cm-3and water activity 0.393. color analysis indicated a decrease in luminosity and increase in a*and b*colors, presenting a slight variation towards red and a strong presence of yellow. conclusion: the used ingredients and respective proportions, as well as the agglomeration process, resulted in a food for special needs with bioactive properties. the agglomeration process produced a diet that can easily be reconstituted and fed through catheters, facilitating infusion and consequently, reducing intercurrences.
Avalia??o da influência dos processos de lecitina??o e de aglomera??o nas propriedades físicas de achocolatado em pó
Vissotto, Fernanda Zaratini;Montenegro, Flávio Martins;Santos, Juliane Moreira dos;Oliveira, Sílvia Juliana Rodrigues de;
Ciência e Tecnologia de Alimentos , 2006, DOI: 10.1590/S0101-20612006000300028
Abstract: the aim of this article is to compare the solubility, wettability and granulometric distribution of a cocoa powder beverage, which went through the following process: simple blending; blending and lecithination (0.3; 0.5; 0.8 and 1.0% of soy lecithin) and blending, lecithination (0.3; 0.5; 0.8 and 1.0% of soy lecithin) and agglomeration. comparing the product obtained with the simple blending process and the lecithinated product, the conclusion is that the presence of lecithin improves the powder beverage solubility in all the conditions used. the agglomeration process, after lecithination, improves the solubility of the product, which was determined in this article using the retention index - ri. comparing this parameter to the different treatments studied, the following results were obtained: riblend = 2.65%; ri0.3lec. = 2.07; ri0.3lec.aglom. = 0.79%. regarding wettability, it was observed that the lecithinated products had less time if compared to the powder that went through the simple blending process, and the agglomeration process reduced even more in these times (tblend = 8 min 16 s; t0,3%lec. = 4 min 33 s; t0.3%lec.aglom. = 3 min). no influence of the lecithination process in the granulometric distribution was observed. the agglomeration process caused a modification in this property.
Color degradation kinetics in low-calorie strawberry and guava jellies
Moura, Silvia Cristina Sobottka Rolim de;Prati, Patrícia;Vissotto, Fernanda Zaratini;Ormenese, Rita de Cássia Salvucci Celeste;Santos Rafacho, Marina dos;
Ciência e Tecnologia de Alimentos , 2011, DOI: 10.1590/S0101-20612011000300032
Abstract: the purpose of this study was to follow-up color changes in low-calorie strawberry and guava jellies during storage. to this end, one formulation of each flavor was prepared varying the application of hydrocolloids (pectin and modified starch). the jellies were studied regarding ph, soluble solids, water activity and syneresis. in order to follow-up color changes, the samples remained stored for 180 days in chambers with controlled temperatures of 10 °c (control) and 25 °c (commercial), and color instrumental analyses (l*, a*, and b*) were performed every 30 days. arrhenius model was applied to reaction speeds (k) at different temperatures, where light strawberry and guava jellies showed greater color changes when stored at 25 °c compared to the samples stored at 10 °c. activation energy values between 13 and 15 kcal.mol-1 and q10 values between 2.1 and 2.3 were obtained for light strawberry jelly and light guava jelly, respectively. therefore, it was concluded that, with respect to color changes, every 10 °c temperature increase reduces light jellies shelf-life by half.
Il primato dell'istituzione in Arnold Gehlen
Ubaldo Fadini
Scienza & Politica : per una Storia delle Dottrine , 1991, DOI: 10.6092/issn.1825-9618/3063
Abstract: Il primato dell'istituzione in Arnold Gehlen
Non-overlap of hosts used by three congeneric and sympatric loranthaceous mistletoe species in an Amazonian savanna: host generalization to extreme specialization
Fadini, Rodrigo Ferreira;
Acta Botanica Brasilica , 2011, DOI: 10.1590/S0102-33062011000200010
Abstract: two main hypotheses predominate in the literature on mistletoe-host specificity: (1) mistletoes are only likely to specialize on plant species on which they are frequently deposited; and (2) compatibility between mistletoes and plant species is a prerequisite for mistletoe-host parasitism. i explored these hypotheses by studying the seed deposition patterns and mistletoe-host compatibility in populations of three congeneric and sympatric mistletoe species of the genus psittacanthus (p. biternatus, p. eucalyptifolius and p. plagiophyllus - loranthaceae). i recorded the presence or absence of these mistletoe species in 15 tree species in a savanna patch in amazonia. among the five tree species that i found to be potential hosts (at least one tree individual infected), i also recorded if they had at least one mistletoe seed of any species attached to their branches. finally, i planted seeds of all mistletoe species on the same individual trees in various hosts and non-host species and recorded seed survivorship and seedling establishment within 7 (p. plagiophyllus) to 12 months (p. biternatus and p. eucalyptifolius) after planting. there was no overlap among trees used as hosts by the three psittacanthus species. th e most specialized mistletoe species occurred in different host tree species with low relative abundance at the study site (psittacanthus eucalyptifolius on vatairea macrocarpa (benth.) ducke, and p. plagiophyllus on anacardium occidentale l.). mistletoe-host compatibility, and not seed deposition patterns, was the factor most likely to explain patterns of host use by psittacanthus species at this study site.
It Is All in the Blood: The Multifaceted Contribution of Circulating Progenitor Cells in Diabetic Complications
Gian Paolo Fadini,Angelo Avogaro
Experimental Diabetes Research , 2012, DOI: 10.1155/2012/742976
Abstract: Diabetes mellitus (DM) is a worldwide growing disease and represents a huge social and healthcare problem owing to the burden of its complications. Micro- and macrovascular diabetic complications arise from excess damage through well-known biochemical pathways. Interestingly, microangiopathy hits the bone marrow (BM) microenvironment with features similar to retinopathy, nephropathy and neuropathy. The BM represents a reservoir of progenitor cells for multiple lineages, not limited to the hematopoietic system and including endothelial cells, smooth muscle cells, cardiomyocytes, and osteogenic cells. All these multiple progenitor cell lineages are profoundly altered in the setting of diabetes in humans and animal models. Reduction of endothelial progenitor cells (EPCs) along with excess smooth muscle progenitor (SMP) and osteoprogenitor cells creates an imbalance that promote the development of micro- and macroangiopathy. Finally, an excess generation of BM-derived fusogenic cells has been found to contribute to diabetic complications in animal models. Taken together, a growing amount of literature attributes to circulating progenitor cells a multi-faceted role in the pathophysiology of DM, setting a novel scenario that puts BM and the blood at the centre of the stage.
Eficácia do treinamento de habilidades fonológicas em crian?as de risco para dislexia
Fadini, Cíntia Cristina;Capellini, Simone Aparecida;
Revista CEFAC , 2011, DOI: 10.1590/S1516-18462011005000025
Abstract: purpose: to identify the symptoms of dyslexia in 1st grade students and verify the effectiveness of the phonological training program in children under risk of dyslexia and verify children under risk who have not improved after training for the presence of dyslexia through interdisciplinary diagnosis. method: the participants of this study were 30 children from the 1st grade in public schools, of both genders, from 6 to 7 years and 11 months old. in this study we adapted the research about training phonological skills. the phonological training program was adapted in three stages: pre-testing, training and post-testing. all children were submitted to the test for early identification of reading problems; only 13 children showed difficulty in performing more than 51% of the test and were submitted to the training program. the children were divided as follows: group i (gi) with 13 children who were submitted to the program; and group ii (gi) with 17 children who were not submitted to the program. results: there were statistically significant differences, suggesting that 11 children submitted to the program showed better performance at a post-test when compared to pre-testing, only 2 children did not respond to the proposed intervention, being submitted to an interdisciplinary evaluation. conclusions: the accomplishment of the phonological skills training program was effective for the children under risk of dyslexia, proven for the improvement of the phonological and reading skills in a situation of post-testing in relation to pre-testing.
APLICACIóN DE LíQUIDOS IóNICOS PARA LA HIDROAMINACIóN HOMOGéNEA DE OLEFINAS CATALIZADA POR COMPLEJOS DE Ni(II)
Erira D,Edith M; Fadini,Luca;
Revista Colombiana de Química , 2008,
Abstract: ionic liquids are excelent solvents for catalytic reactions because they can optimize and/or recycle the homogeneous catalysts. in this work we describe the use of ionic liquids with low melting point (-30 – -34 °c) –based on pyridine derivatives– in the hydroamination reaction of activated olefins catalyzed by ni(ii) complexes. the catalyst [ni(pigiphos) (ncch3)](clo4)2 allows good activity in ionic liquids (ton up to 172) and the catalyst/ ionic liquid system can be recycled at least 2 times.
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