Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 181
Primeira ... 123456789 ... Última
Imagem não selecionada

Imprime registro no formato completo
Biological, nutritional, and histochemical basis for improving an artificial diet for Bracon hebetor Say (Hymenoptera: Braconidae) Neotropical Entomology
Magro,Sandra R.; Dias,Alcides B.; Terra,Walter R.; Parra,José R.P..
The biology of Bracon hebetor Say (Hymenoptera: Braconidae) reared on fifth instars of Anagasta kuehniella (Zeller) (Lepidoptera: Pyralidae) (natural diet) and in vitro (artificial diet) was evaluated. Data on the number of instars, development time and food intake were collected, and histochemical tests were conducted to detect proteins and lipids in the parasitoid's digestive tract. The data disclosed differences that can help to improve artificial rearing of B. hebetor. B. hebetor had three instars in both diets, but the developmental time on the artificial diets was prolonged due to the increase in larval and pupal development times. Larvae grew faster on the natural host and required a lower food intake (2.7 µl) as compared to that required by the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biological control; Fatty acid; Idiobiont; Nutritional requirement; Protein.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2006000200010
Imagem não selecionada

Imprime registro no formato completo
Mobilization of energetic substrates in the endangered catfish Steindachneridion parahybae (Siluriformes: Pimelodidae): changes in annual reproductive cycle in captivity Neotropical Ichthyology
Tolussi,Carlos E.; Gomes,Aline D.; Ribeiro,Cristiéle da S.; Caneppele,Danilo; Moreira,Renata G.; Honji,Renato M..
ABSTRACT This study aimed at analyzing the energetic substrate (ES) in the main storage tissues of Steindachneridion parahybae, throughout the reproductive cycle in captivity. Differently from wild, in captivity, feeding is not interrupted during the reproductive period, the females do not spawn spontaneously, and they are sedentary. Adult females were sampled monthly and based on their histology and gonadosomatic index (GSI), ovaries were classified into: previtellogenic (PRV), vitellogenic (VTG), and regression (REG) stages. Ovaries at the VTG stage showed higher protein and lipids levels than at the PRV stage with a positive correlation between these substrates and the GSI. Muscle was the main source of proteins transferred to the ovaries, according to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycogen; Lipids; Metabolic substrate; Protein; Reproductive cycle.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000200208
Imagem não selecionada

Imprime registro no formato completo
Properties of aminopeptidase produced by Euglena pisciformis cultured with potato protein OAK
Yamamoto, Shinro; Nishimura, Tohru; Mino, Yosuke; 山本, 紳朗; 西村, 透; 美濃, 羊輔.
Palavras-chave: Alkylating agent; Aminopeptidase; Degradation; Euglena pisciformis; Potato; Protein; Sulfhydryl reagent.
Ano: 1997 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1308
Imagem não selecionada

Imprime registro no formato completo
Euglena pisciformisによるバレイショ蛋白質の吸収機構 OAK
Yamamoto, Shinro; Nishimura, Tohru; Mino, Yosuke.
Palavras-chave: Aminopeptidase; Degradation; Euglena pisciformis; Potato; Protein.
Ano: 1997 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1307
Imagem não selecionada

Imprime registro no formato completo
Toxicity of cadmium and copper and their effect on some biochemical parameters of marine fish mugil sheheli OceanDocs
Abou El-Naga, E.H.; El-Moselhy, K.M.; Hamed, M.A..
The present work aimed to estimate the toxicity of cadmium and copper to fingerlings of marine fish Mugil seheli, as well as the effect of different concentratios of Cd and Cu on some biochemical parameters (Aspartate and alanine transaminase enzymes, glucose, glycogen, lipid and protein) in the fish organs. 96-h LC50s of Cd and Cu were 5.36 and 1.64 ppm, respectively. Levels of aspartate and alanine transaminase were reduced within 2 days of exposure to different concentrations of Cd (2.0 and 0.5 ppm) and Cu (0.5 and 0.2 ppm) in both plasma and muscle tissue. Glucose was increased reaching the highest values after 4 days of the treatment with Cd and Cu, while muscle glycogen was increased at first days then dropped after 14 days below control level....
Tipo: Journal Contribution Palavras-chave: Toxicity; Cadmium; Copper; Aspartate and Alanine transaminases; Glucose; Glycogen; Lipid; Protein; Fish (Mugil seheli) Abiotic factors Accumulation Chemical analysis Marine fish.
Ano: 2005 URL: http://hdl.handle.net/1834/1296
Imagem não selecionada

Imprime registro no formato completo
Adaptability and stability of white oat cultivars in relation to chemical composition of the caryopsis PAB
Hawerroth,Maraisa Crestani; Carvalho,Fernando Irajá Félix de; Oliveira,Antonio Costa de; Silva,José Antonio Gonzalez da; Gutkoski,Luiz Carlos; Sartori,João Francisco; Woyann,Leomar Guilherme; Barbieri,Rosa Lía; Hawerroth,Fernando José.
The objective of this work was to characterize the chemical properties of white oat (Avena sativa) caryopsis and to determine the adaptability and stability of cultivars recommended for cultivation in the state of Rio Grande do Sul, Brazil. The trials were carried out in the 2007, 2008 and 2009 crop seasons, in three municipalities: Augusto Pestana, Capão do Leão, and Passo Fundo. Fifteen cultivars were evaluated in a randomized block design, with four replicates. The contents of protein, lipid, and nitrogen-free extract were evaluated in the caryopsis. Cultivar performances for the measured characters varied according to location and year of cultivation. The cultivar URS Guapa showed high content of nitrogen-free extract and low contents of protein and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Avena sativa; Bissegmented linear regression; Lipid; Nitrogen-free extract; Nutritional quality; Protein.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000100006
Imagem não selecionada

Imprime registro no formato completo
Mesquite seed gum and Nile tilapia fish gelatin composite films with cellulose nanocrystals PAB
Cruz,Mabel Ribeiro da; Morais,João Paulo Saraiva; Muniz,Celli Rodrigues; Rosa,Morsyleide de Freitas; Souza Filho,Men de Sá Moreira de; Azeredo,Henriette Monteiro Cordeiro de.
Abstract: The objective of this work was to determine a suitable combination of the polysaccharide mesquite seed gum (MSG) and the protein Nile tilapia fish gelatin in the composite MSG/gelatin film for food packaging applications, and to evaluate the effect of cellulose nanocrystals (CNCs) on the film. MSG and gelatin were extracted from mesquite seeds and Nile tilapia residues, respectively, and the CNCs from mesquite pods by acid hydrolysis. The MSG:gelatin ratio with the best combination of tensile and barrier properties was used to produce the bionanocomposite films, by adding different CNC contents to the MSG/gelatin dispersion. The MSG:gelatin ratio of 1:1 had a good combination of water vapor permeability (WVP) and tensile strength. The properties...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Prosopis juliflora; Bionanocomposites; Packaging; Polysaccharide; Protein.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000400495
Imagem não selecionada

Imprime registro no formato completo
Isoflavone, anthocyanin, and fatty acid contents of vegetable-type soybean grains at different maturity stages PAB
Carrão-Panizzi,Mercedes Concórdia; Silva,Bruna dos Santos; Leite,Rodrigo Santos; Godoy,Ronoel Luiz de Oliveira; Santiago,Manuela Cristina Pessanha de Araujo; Felberg,Ilana; Oliveira,Maria Cristina Neves de.
Abstract: The objective of this work was to determine the oil, protein, fatty acid, isoflavone, and anthocyanin contents in soybean grains of different breeding lines and maturity stages. Evaluations were performed for the chemical profiles of black- (BRM09-50995) and of yellow-seed-coat (BRM11-51428 and BRM08-50643) breeding lines, harvested at the R6 (immature seeds), R7 (physiological maturity), and R8 (full maturity) maturity stages. Oil and protein contents increased from the R6 to the R8 stage, and BRM11-51428 showed the highest protein content. Palmitic, stearic, and linolenic fatty acids were higher at R6, and linoleic and oleic acids were higher at R7 and R8, respectively. At the R8 growth stage, BRM11-51428 and BRM 09-50995 showed the highest...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max; Aglucone; Breeding line; Glucoside; Oil; Protein.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000103901
Imagem não selecionada

Imprime registro no formato completo
Characterization and biological activity of condensed tannins from tropical forage legumes PAB
Pereira,Tatiana Pires; Modesto,Elisa Cristina; Nepomuceno,Delci de Deus; Oliveira,Osniel Faria de; Freitas,Rafaela Scalise Xavier de; Muir,James Pierre; Dubeux Junior,José Carlos Batista; Almeida,João Carlos de Carvalho.
Abstract: The objective of this work was to characterize condensed tannins (CT) from six tropical forage legumes and to determine their biological activity. The monomers propelargonidin, prodelphinidin and procyanidin were analyzed, as well as extractable condensed tannin (ECT), protein-bound CT (PBCT) and fiber-bound CT (FBCT), molecular weight, degree of polymerization, polydispersity index, and biological activity by protein precipitate by phenols (PPP) of leaves of the legumes Cajanus cajan, Gliricidia sepium, Stylosanthes capitata x Stylosanthes macrocephala (stylo), Flemingia macrophylla, Cratylia argentea, and Mimosa caesalpiniifolia, and of the bark of this latter species. Differences were observed in the concentrations of ECT, PBCT, PPP, and total...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Forage legumes; Phenols; Procyanidins; Prodelphinidins; Protein.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000901070
Imagem não selecionada

Imprime registro no formato completo
Biochemical changes associated to soybean seeds osmoconditioning during storage PAB
BRACCINI,ALESSANDRO DE LUCCA E; REIS,MÚCIO SILVA; MOREIRA,MAURÍLIO ALVES; SEDIYAMA,CARLOS SIGUEYUKI; SCAPIM,CARLOS ALBERTO.
A work was carried out with the purpose of verifying the biochemical changes associated to soybean (Glycine max (L.) Merrill) seeds osmoconditioning. Seeds of the UFV 10, IAC 8 and Doko RC cultivars harvested at R8 development stage and submitted to different treatments were used. The biochemical evaluations were performed during seed storage, after the hydration-dehydration process. Initially, seeds were osmoconditioned in a polyethylene glycol (PEG 6000) solution, with the osmotic potential of -0.8 MPa and 20ºC, for a period of four days. After that, seeds were dried back until the initial moisture content (10-11%) and stored in natural conditions for three and six months. Two controls were used: untreated seeds (dry seeds) and water soaked seeds. Seed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Polyethylene glicol; Protein; Lipid; Hexanal.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2000000200022
Imagem não selecionada

Imprime registro no formato completo
Some physiological effects of acetamiprid on two cultivars of corn plants Phyton
Turkyilmaz Unal,B; Esiz Dereboylu,A.
The aim of the study was to investigate some physiological effects of an insecticide (Akira 20-SP) with acetamiprid agent on Cin misir Adapop 10 and Sert misir Adapop 2 cultivars of corn plants in different concentrations [0 g/L, 0.6 g/L (recommended concentration), 1.2 g/L]. Photosynthetic pigment substances, total soluble protein and proline contents were determined. Analysis of treated leaves showed that the recommended concentration resulted in higher chlorophyll value in Cin misir Adapop 10 and Sert misir Adapop 2. Carotenoid amounts increased in Cin misir Adapop 10 and decreased in Sert misir Adapop 2 to the control. Total protein contents decreased in x2 recommended concentration in Cin misir Adapop 10 and in all treatment groups in Sert misir...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Insecticide; Photosynthetic pigment; Proline; Protein; Zea mays L.
Ano: 2015 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572015000100021
Imagem não selecionada

Imprime registro no formato completo
FACTORS AFFECTING WHEAT PROTEIN PREMIUMS AgEcon
Parcell, Joseph L.; Stiegert, Kyle W..
This study used Rosen's methodology of deriving a marginal implicit price series from traditional hedonic modeling and then using this series to estimate a demand model. This procedure was applied to Kansas Hard Red Winter wheat protein. Results were mixed. Own-district protein level was not economically significant; however, an increase in other Kansas district's protein level and the North Dakota Hard Red Spring protein level may have a slight economic impact on own-district protein premium. The results of this study indicate that new varieties of wheat developed that increase protein content without loss of yield and that are regional specific can impact the price or wheat in other areas.
Tipo: Conference Paper or Presentation Palavras-chave: Wheat; Characteristic Demand Model; Protein; Crop Production/Industries; Research Methods/ Statistical Methods.
Ano: 1999 URL: http://purl.umn.edu/21524
Imagem não selecionada

Imprime registro no formato completo
Harvest-Time Protein Shocks and Price Adjustment in U.S. Wheat Markets AgEcon
Goodwin, Barry K.; Smith, Vincent H..
Dynamic relationships among three classes of wheat are investigated using threshold VAR models that incorporate the effects of protein availability. Changes in the stock of protein are found to generate significant responses in the prices of hard red spring wheat and hard red winter wheat, but not soft red wheat. The responses to identical changes in protein stocks are larger when the magnitudes of deviations of protein stocks from normal levels are large. Shocks to the prices of individual classes of wheat result in complex responses in the prices of the other wheat classes. Notably, however, a shock to the price of hard red winter wheat appears to result in little or no response in the price of hard spring wheat, though importantly, the opposite is not...
Tipo: Report Palavras-chave: Protein; Thresholds; Vector autoregressions; Wheat prices; Crop Production/Industries.
Ano: 2009 URL: http://purl.umn.edu/54544
Imagem não selecionada

Imprime registro no formato completo
FACTORS AFFECTING THE SUPPLY OF QUALITY SPRING WHEATS: COMPARISONS BETWEEN THE UNITED STATES AND CANADA AgEcon
Dahl, Bruce L.; Wilson, William W..
The demand for high quality hard wheats has been increasing. In this paper, factors affecting the supply and consistency of high quality wheats in Canada and North Dakota were compared and contrasted. Differences exist in the development and release of new varieties which affect the number and quality of hard wheats produced. Variety numbers and concentration were examined with a range of measures. Wheat area in Canada was found to be concentrated in fewer varieties than in North Dakota. These results were more apparent for durum than for hard red spring wheats. However, there was a trend toward more concentration in North Dakota and less in Canada. Protein, yield, and trade-offs were compared. Alberta appears to have a comparative advantage in the...
Tipo: Working or Discussion Paper Palavras-chave: Varieties; HRS; Supply; Protein; Yields; Variety Adoption; End-use Quality; Variety Release; United States; Canada; Demand and Price Analysis.
Ano: 1997 URL: http://purl.umn.edu/23218
Imagem não selecionada

Imprime registro no formato completo
Pre-harvest Forecasting of County Wheat Yield and Wheat Quality Conditional on Weather Information AgEcon
Lee, Byoung-Hoon; Kenkel, Philip L.; Brorsen, B. Wade.
Wheat regression models that account for the effect of weather are developed to forecast wheat yield and quality. Spatial lag effects are included. Wheat yield, protein, and test weight level are strongly influenced by weather variables. The forecasting power of the yield and protein models was enhanced by adding the spatial lag effect. Out of sample forecasting tests confirm the models’ usefulness in accounting for the variations in average wheat yield and qualities.
Tipo: Conference Paper or Presentation Palavras-chave: Prediction; Protein; Spatial lag; Test weight; Weather; Wheat yield; Agribusiness; Environmental Economics and Policy; Farm Management; Production Economics; Productivity Analysis; Risk and Uncertainty.
Ano: 2011 URL: http://purl.umn.edu/98829
Imagem não selecionada

Imprime registro no formato completo
GRADES/CLASSES OF HARD WHEAT EXPORTED FROM THE UNITED STATES: ANALYSIS OF DEMAND AND TRENDS 1986-2003 AgEcon
Dahl, Bruce L.; Wilson, William W..
Questions have emerged in the United States and Canada regarding the role and function of quality in international markets. One has been the definition and composition of different market segments, with a particular focus on higher quality customers. In this study, trends in U.S. wheat exports are analyzed by class, grade, protein, and market segment. Analysis shows trends toward increases in exports of higher grades of Hard Amber Durum (HAD) and Hard Red Spring (HRS); whereas, exports of higher quality grades for Hard Red Winter (HRW) appear to be moderate. Exports of HRS, HRW, and HAD show increases in proportion of exports shipped at higher protein levels and increases in the proportion of exports where protein is specified. Cluster analysis for...
Tipo: Working or Discussion Paper Palavras-chave: Trends; Wheat quality; Grades; Classes; Protein; Hard Red Spring; Hard Red Winter; Hard Amber Durum; Market segments; Crop Production/Industries; International Relations/Trade.
Ano: 2004 URL: http://purl.umn.edu/23591
Imagem não selecionada

Imprime registro no formato completo
PROTEIN DEMAND IN HARD WHEATS AgEcon
Wilson, William W.; Wilson, Wesley W.; Dahl, Bruce L..
Wheat protein is one of the most important specifications used in domestic and import purchase contracts. It is used as a proxy for functional quality that is important in domestic markets and to importers. Large differences exist in functional characteristics amongst wheat that vary by protein level and class. The purpose of this paper is to analyze the demand for wheat protein across importing countries and through time. A choice based econometric model is specified and estimated using a pooled data set of wheat shipments. Results indicate that there have been shifts over time, purchase probabilities are highly price elastic and vary across importing regions. In addition, income, traded goods, urbanization, females in the work force, and domestic...
Tipo: Working or Discussion Paper Palavras-chave: Wheat Quality; Protein; Hard Red Spring; Hard Red Winter; Market Segments; Crop Production/Industries.
Ano: 2005 URL: http://purl.umn.edu/23520
Imagem não selecionada

Imprime registro no formato completo
FACTORS AFFECTING THE SUPPLY OF QUALITY SPRING WHEATS: COMPARISONS BETWEEN THE UNITED STATES AND CANADA; SUMMARY AgEcon
Dahl, Bruce L.; Wilson, William W..
The demand for high quality hard wheats has been increasing. In this paper, factors affecting the supply and consistency of high quality wheats in Canada and North Dakota were compared and contrasted. Differences exist in the development and release of new varieties which affect the number and quality of hard wheats produced. Variety numbers and concentration were examined with a range of measures. Wheat area in Canada was found to be concentrated in fewer varieties than in North Dakota. These results were more apparent for durum than for hard red spring wheats. However, there was a trend toward more concentration in North Dakota and less in Canada. Protein, yield, and trade-offs were compared. Alberta appears to have a comparative advantage in the...
Tipo: Working or Discussion Paper Palavras-chave: Varieties; HRS; Supply; Protein; Yields; Variety Adoption; End-use Quality; Variety Release; United States; Canada; Demand and Price Analysis.
Ano: 1997 URL: http://purl.umn.edu/23472
Imagem não selecionada

Imprime registro no formato completo
Economic Value of Information: Wheat Protein Measurement AgEcon
Miao, Ruiqing; Hennessy, David A..
In this paper we study U.S. wheat farmers’ willingness to pay for near infrared (NIR) sensor that can segregates wheat grains according to their protein concentration. We first develop a microeconomic optimization model of wheat farmers’ segregating and commingling decisions. Then we use U.S. wheat prices and stocks to estimate a wheat protein stock demand system. This allows us to establish the effects of changes in the protein profile of wheat stocks on protein premiums. The paper’s simulation section combines the results from the microeconomic optimization model and from the econometric estimations to simulate wheat farmers’ WTP for the sorting technology. Preliminary findings from the simulation show that a typical hard red winter (hard red spring)...
Tipo: Conference Paper or Presentation Palavras-chave: Information; Economic value; Wheat; Protein; Market structure; Crop Production/Industries; Production Economics; Q12; Q16; D81.
Ano: 2011 URL: http://purl.umn.edu/103974
Imagem não selecionada

Imprime registro no formato completo
Effects of Macronutrients on Seed Quality and Profitability Analysis of Sunflower Production in Northwest Pakistan AgEcon
Amanullah; Khan, Mir Wali; Almas, Lal K.; Stewart, Bob A..
Potassium (K) and phosphorus (P) application to sunflower (Helianthus annus L.) reduced cost of production, increased seed oil and protein concentration, yield and net returns on the K and P deficient soils in Northwest Pakistan. Field experiment was conducted at the New Developmental Research Farm of NWFP (North West Frontier Province) Agricultural University Peshawar, Pakistan during summer 2006. The experiment was carried out in a randomized complete block design with split plot arrangements using three replications. Six levels of K (0, 25, 50, 75, 100 and 125 kg ha-1) were kept in main plots while four levels of P (0, 45, 90 and 135 kg ha-1) were kept in sub-plots. Increase in K and P levels enhanced seed oil concentration, on the other hand, increase...
Tipo: Conference Paper or Presentation Palavras-chave: Sunflower; Potassium; Phosphorus; Oil; Protein; Economic analysis; Northwest Pakistan; Farm Management; International Development; International Relations/Trade; Production Economics; Productivity Analysis.
Ano: 2010 URL: http://purl.umn.edu/56437
Registros recuperados: 181
Primeira ... 123456789 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional