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Search Results: 1 - 10 of 178418 matches for " Moacir Couto de;Andrade "
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Amazonian Fruits: An Overview of Nutrients, Calories and Use in Metabolic Disorders  [PDF]
Moacir Couto de Andrade Júnior, Jerusa Souza Andrade
Food and Nutrition Sciences (FNS) , 2014, DOI: 10.4236/fns.2014.517182
Abstract: Amazonian fruits are outstanding in quality. They are consumed as true delicacies of nature by the Brazilian population. Besides their attractive attributes, i.e. appearance, different textures and distinctive flavors, their nutritional value is diversified in the type of calories and the functional food ingredients. In addition to being very palatable, Amazonian fruits provide energy-rich macronutrients (lipids, proteins and carbohydrates), micronutrients (minerals, water-soluble vitamins and fat-soluble vitamins), prebiotics (dietary fibers, especially pectin), bioactive substances (carotenoids and polyphenols), variety in the diet and improvement in the organoleptic properties and digestibility of (mixed) foods. This study first aimed to review concepts applicable to nutritional constituents and caloric contents of Amazonian fruits. It also attempted to clarify the potential use of these fruits in metabolic disorders (i.e. diabetes mellitus and/or obesity). To fulfill these purposes, 12 fruits were chosen for their dietetic significance in the Brazilian Amazonia.
Biochemical Changes of Cubiu Fruits (Solanum sessiliflorum Dunal, Solanaceae) According to Different Tissue Portions and Ripening Stages  [PDF]
Moacir Couto de Andrade Júnior, Jerusa Souza Andrade, Suely de Souza Costa
Food and Nutrition Sciences (FNS) , 2016, DOI: 10.4236/fns.2016.712111
Abstract: Cubiu fruits (Solanum sessiliflorum Dunal, Solanaceae) are known for their high nutritional value and low caloric content. This work aimed at evaluating biochemical indices of cubiu fruits according to different tissues (peel, pulp and placenta) and ripening stages (green, turning, ripe and fully ripe). The fruits were randomly harvested to investigate sensory aspects (colorimetry, blanching effect, pigments) and biochemical indices (moisture and dry matter, Total Soluble Solids (TSS), pH, Titratable Acidity (TA), TSS/TA ratio, ascorbic acid, Alcohol-Insoluble Solids (AIS), pectinesterase activity and pectin content). The analyses were performed at the laboratory of Instituto Nacional de Pesquisas da Amazonia (INPA), Manaus, Brazil. The blanching process preserved pulp colors at all ripening stages. Chlorophylls were higher in green peels; flavonoids and carotenoids, in fully ripe peels. Anthocyanins were entirely absent. Pulp (turning fruits) showed the highest moisture content (91.05), followed by ripe pulp (90.70) and fully ripe pulp (90.62). Pulp TSS changed little whereas placenta TSS declined and were associated with increased TA and pH reduction (fully ripe fruits). Pulp pH and TA varied little whereas placenta pH was notably low and TA was remarkably high (fully ripe fruits). Pulp TSS/TA ratio showed predominance of TSS while in placenta, there was predominance of organic acids. AIS, precursors of pectin, were stable during ripening. The statistical analysis of dietary fiber content showed one modal value in the AIS. In pulp, pectinesterase activity correlated inversely with pectin content. Cubiu fruits were significant sources of bioactive compounds, e.g. chlorophylls, flavonoids and carotenoids, predominantly in the peel and the pulp; soluble functional fibers, e.g. pectin (g/100 g fresh weight), particularly in the green peel (1.00) and the fully ripe pulp (1.12), and other versatile molecules, e.g. ascorbic acid (mg/100 g fresh weight), especially in the fully ripe peel (32.45) and placenta (24.84) and the turning placenta (21.27). Cubiu fruits are rich in ascorbic acid and should be included in the human diet.
Physicochemical changes in cubiu fruits (Solanum sessiliflorum Dunal) at different ripening stages
Andrade Júnior, Moacir Couto de;Andrade, Jerusa Souza;
Ciência e Tecnologia de Alimentos , 2012, DOI: 10.1590/S0101-20612012005000049
Abstract: cubiu shrubs (solanum sessiliflorum dunal) have drawn the attention of researchers for their biological versatility (preferential heliophilous or facultative ombrophilous shrubs), their capacity to grow in upland or lowland areas, and the good technological quality of their fruits for the food industry. the aim of this study was to verify physicochemical changes in cubiu fruits during maturation. the fruits were harvested from the experimental station of olericulture of the instituto nacional de pesquisas da amaz?nia (inpa), brazil. the analyses were performed in whole cubiu fruits (peel, pulp, and placenta) at four traditional ripening stages (green, turning, ripe, and fully ripe) for the determination of weight, moisture, total solids, total carotenoids, proteins, lipids, and ash. cubiu fruits showed large weight variation, with amodal distribution. the ripe stage was critical to maintain moisture, and from that stage on, water loss became evident. the lipids increased steadily over the four ripening stages, maintaining, however, insignificant calorie content. total carotenoids, proteins, and ash reached the maximum level at the fully ripe stage. with the exception of weight and moisture, all physicochemical changes exhibited the same general behavior, i.e. they increased as the fruits ripened at the four investigated stages.
Aspectos evolutivos dos horm?nios
Andrade Jr, Moacir C. de;
Arquivos Brasileiros de Endocrinologia & Metabologia , 2002, DOI: 10.1590/S0004-27302002000300013
Abstract: the search of the true knowledge (science) was always guided by the logic, which won powerful tools from the current biotechnology. with these new resources, nature is revealing its secret language (genetic code), its own vocabulary (gene sequences), and its characteristics from always apparent in its creatures (phenotypes). having nature preserved in its patrimony living beings of different evolutionary periods, the investigators can compare the vestiges of substances (such as hormones), preserved in old and more recent species, and try to reconstitute their course along the millennia. the present work therefore approaches these evolutionary aspects linked to the hormones.
Aspectos evolutivos dos horm nios
Andrade Jr Moacir C. de
Arquivos Brasileiros de Endocrinologia & Metabologia , 2002,
Abstract: A busca do conhecimento verdadeiro (ciência) foi sempre norteada pela lógica, que ganhou instrumentos poderosos da biotecnologia atual. Com esses novos recursos, a natureza está revelando a sua linguagem secreta (código genético), o seu vocabulário próprio (seqüências gênicas), e as suas características desde sempre aparentes em suas criaturas (fenótipos). Tendo a natureza preservado em seu patrim nio seres vivos de diferentes períodos evolutivos, os pesquisadores podem comparar os vestígios de substancias (como os horm nios), preservados em espécies antigas e mais recentes, e tentar reconstituir o seu percurso ao longo dos milênios. Destarte, o presente trabalho aborda esses aspectos evolutivos ligados aos horm nios.
Determina??o de propriedades térmicas de gr?os de milho
Andrade, Ednilton Tavares de;Couto, Sandra Maria;Queiroz, Daniel Mar?al de;Peixoto, Abra?o Brito;
Ciência e Agrotecnologia , 2004, DOI: 10.1590/S1413-70542004000300002
Abstract: values for bulk density, thermal conductivity, thermal diffusivity and specific heat of corn grains were obtained in this work as a function of product moisture content. the infinite cylinder method with a central heat source was used in the thermal conductivity and diffusivity determinations. the equipment used consisted of an aluminum tube (0.1m of diameter and 0.5m of height) isolated in the superior and inferior extremities. a resistor (nickel-chrome; strength of 4.16 w.m-1; diameter of 0.0006438m) was used as a heat source that was located at the center of the cylinder (longitudinal direction). during each determination, the resistor was submitted to a difference of potential of 2.08v that provided an electric current of 1a. the moisture content of the tested samples varied from 8.6 to 17.1% w.b. the behavior of the values of thermal conductivity, diffusivity and specific heat as a function of the product moisture content can be represented by linear relationships. the thermal conductivity and specific heat of the grains increase with the product moisture content, while the thermal diffusivity decreases. errors involved in the thermal properties determinations are also discussed in this work.
Maturidade sexual em Callinectes ornatus Ordway, 1863 (crustacea: decapoda: portunidae) no litoral de Ilhéus, BA, Brasil
Carvalho, Edvanda Andrade Souza de;Carvalho, Fabrício Lopes de;Couto, Erminda da Concei??o Guerreiro;
Papéis Avulsos de Zoologia (S?o Paulo) , 2011, DOI: 10.1590/S0031-10492011002400001
Abstract: aiming to estimate the onset of the sexual maturity of callinectes ornatus on the coast of ilhéus (bahia, brazil), we collected multiple specimens of c. ornatus monthly between march 2003 and february 2005. the otter-trawl was used to have population samples of three sites along the coast, lasting 30 minutes each. analysis was performed from 1,221 individuals (918 females and 303 males). the size at the onset of the morphological maturity was 41.4 mm for females and 44.2 mm for males. there was synchrony between physiological and morphological maturity. the size at the onset of the maturation of both sexes was lower than those found in other studies along the brazilian coast.
Distribui??o da press?o estática em uma coluna de canola: análise por elementos finitos
Andrade, Ednilton T. de;Couto, Sandra M.;Queiroz, Daniel M. de;
Revista Brasileira de Engenharia Agrícola e Ambiental , 2001, DOI: 10.1590/S1415-43662001000200019
Abstract: the flow of a fluid through a porous medium occurs during the aeration and drying stages of a mass of grains, used for the product quality conservation. in this work, using the finite element technique, the variation of the static pressure in a bed of rapeseed iciola-41 (brassica napus l. var. olifera) submitted to different airflows was modeled. through an optimization process, the permeability of the bed to the different airflows was also determined. the results of the finite element analysis, when compared with those obtained from some classical models, presented the best performance. the relative error using the finite element technique varied in the range 0.7 - 24.3% while the relative error for all simulations was approximately equal to 5.3%.
Exploring Variability: New Brazilian Varieties SCS119 Rubi and SCS120 Onix for the Specialty Rices Market  [PDF]
Ester Wickert, Moacir Antonio Schiocchet, José Alberto Noldin, Juliana Vieira Raimondi, Alexander de Andrade, Klaus Konrad Scheuermann, Rubens Marschalek, Gabriela Neves Martins, Eduardo Hickel, Domingos Savio Eberhardt, Ronaldir Knoblauch
Open Journal of Genetics (OJGen) , 2014, DOI: 10.4236/ojgen.2014.42016
Abstract:

“Specialty rices” is a common name for varieties that present uncommon grains with distinctive features as pericarp color, grain shape and size or aroma. Most of these rices are related to cultural traditions and ceremonies, but some have higher nutritionally value than white rice. Considering that today people are searching for foods that could help to improve and maintain health, specialty rices would also be considered in some way as functional food. As a specific market, the economic values of these grains are also higher than those of white rice. So, the new red rice variety SCS119 Rubi and the new black rice variety SCS120 Onix were developed in order to attend the specific and economically important specialty rices market, and should be consumed as a whole rice grain. Experimental tests performed with these varieties showed that they could be recommended to all rice-producing regions of Santa Catarina State, Brazil.

Potencial alelopático de Cyperus rotundus L. sobre espécies cultivadas
Andrade, Heloísa Monteiro de;Bittencourt, Alexandre Horácio Couto;Vestena, Silvane;
Ciência e Agrotecnologia , 2009, DOI: 10.1590/S1413-70542009000700049
Abstract: secondary metabolites produced in some plant species may promote changes in the development of other plants or even in other organisms. the aim of this work was to identify the possible allelopathic effects of aqueous extracts of cyperus rotundus leaves on germination and growth of brassica campestris, brassica oleracea var. botrytis, brassica oleracea var. capitata, brassica oleracea var. italica, brassica rapa, lactuca sativa cv. grand rapids, lycopersicum esculentum and raphanus sativus seedlings. seven aqueous extract concentrations were used (0, 10, 30, 50, 70, 90, and 100%). the treatments were arranged in a completely randomized desing, with five replications of ten seeds of each cultivated species constituting the sample unity. the aqueous extracts of c. rotundus revealed allelopathic potentialities on germination of seeds and growth of two vegetable parts (root and aerial part) of all tested species, except on germination of l. sativa and l. esculentum seeds, being that the reduction increased with the increase of the aqueous concentration extracts which were used. the seedlings roots were the most affected structure in the presence of aqueous extracts.
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