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| Registros recuperados: 122 | |
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| Mello,Juliana Iura de Oliveira; Barbedo,Claudio José; Salatino,Antonio; Figueiredo-Ribeiro,Rita de Cássia Leone. |
| Considering the importance of water content for the conservation and storage of seeds, and the involvement of soluble carbohydrates and lipids for embryo development, a comparative study was carried out among the seeds of Inga vera (ingá), Eugenia uniflora (pitanga), both classified as recalcitrant, and Caesalpinia echinata (brazilwood) and Erythrina speciosa (mulungu), considered as orthodox seeds. Low concentrations of cyclitols (0.3-0.5%), raffinose family oligosaccharides (ca. 0.05%) and unsaturated fatty acids (0-19%) were found in the seeds of ingá and pitanga, while larger amounts of cyclitols (2-3%) and raffinose (4.6-13%) were found in brazilwood and mulungu, respectively. These results, in addition to higher proportions of unsaturated fatty acids... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Desiccation tolerance; Fatty acids; Seeds; Starch; Sugars. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000400019 |
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| Matsuguma,Luciana Shizue; Lacerda,Luiz Gustavo; Schnitzler,Egon; Carvalho Filho,Marco Aurélio da Silva; Franco,Célia Maria Landi; Demiate,Ivo Mottin. |
| Two commercial varieties of Peruvian carrot ('Amarela de Carandaí' and 'Senador Amaral') were processed into flour, starch and bagasse and chemically evaluated. The starch was extracted, modified with H2O2 and characterized by the physicochemical methods. By using the methylene blue dyeing, the granules of the modified starches showed intense blue color. The carboxyl content, the reducing power and the amount of the water liberated from the pastes after the freeze-thawing were higher for the oxidized starches and their pastes were clearer than those of the native starches of the two varieties from the two production areas. The RVA viscoamylography showed that the modified starches had lower viscosities with differences between the varieties. In the thermal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Peruvian carrot varieties; Starch; Hydrogen peroxide; Technological properties. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000300022 |
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| Guimaraes,Kátia Cylene; Hazelton,Sarah Rodrigues; Matthews,James Clyde; Swanson,Kendall Carl; Harmon,David Lee; Branco,Antonio Ferriani. |
| Twenty-four Holstein steer calves (88 ± 3kg) with abomasal catheters were randomly assigned within blocks to one of four treatments. The treatments consisted of four abomasal infusions: water (control), 4 g/kg BW.d-1 of partially hydrolyzed starch (SH), 0.6 g/kg BW.d-1 of casein, and a mix of SH + casein. The small intestine was collected and five equidistan, 1m sites were identified (duodenum, jejunum 1, jejunum 2 jejunum 3 and ileum). Maltase specific activity in mucosal homogenate and brush border membrane vesicles, SGLT1 protein abundance, and sodium-dependent glucose uptake in brush border membrane vesicles did not differ between the calves receiving different abomasal infusion treatments. However, maltase specific activity in homogenates and brush... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cattle; Glucose; Maltase; Sodium-dependent glucose co-transporter; Starch. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000700007 |
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| Pinto,Alessandra Teixeira Barbosa; Pereira,Joyce; Oliveira,Tatiana Roselena de; Prestes,Rosilene Aparecida; Mattielo,Rodrigo Rodrigues; Demiate,Ivo Mottin. |
| This work has the objective of characterizing twenty corn landraces grown in the Campos Gerais region (Paraná State) in relation to its chemical composition (moisture, ash, protein, ether extract, dietary fiber and starch) and physical properties (weight of 1000 grains, real density, flotation index, granulometry and color). In addition, also the lab scale processing of the kernels from the varieties was carried out for producing starch; starch purity was evaluated by measuring its protein contamination. Amylose contents and viscoamylograph profile were also evaluated. The results showed that the evaluated landraces have differences in chemical composition as well as in pericarp/endosperm/germ proportions and consequently it should have different... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Maize landraces; Chemical composition; Starch; Physical properties; Rapid viscoanalyzer. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700003 |
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| Labanca,Renata A.; Silva,Cristiane M. G.; Glória,M. Beatriz A.. |
| The levels of starch were determined in chicken based meat products commercialized in Belo Horizonte, MG, Brazil, from December 1996 to March 1997. Samples were analyzed for moisture and starch contents. Starch was acid hydrolyzed and the resulting glucose was determined at 620 nm after reaction with anthrone. The method was observed to be accurate (92.7% recovery), precise (CV = 3.0%), sensitive (quantification limit = 1.25 g/100 g) and simple in the determination of starch in meat products. Among products analyzed, starch was detected in 100% of meat balls and nuggets samples, in 60% of the sausage, 50% of the bologna and 30% of the frankfurter. Starch was not detected in hamburger samples analyzed. Higher mean starch levels were found in nuggets (14.85... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Starch; Chicken based meat products; Anthrone method. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000200008 |
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| Huang,Mian; Zhang,Song. |
| The study was conducted to evaluate effect of Coriolus versicolor mycelia on degrading starch and improving nutrition value in corn grits through solid state fermentation technique. The results showed that using soybean meal as a nitrogen source, α-amylase secreted from C. versicolor expressed 407.25U/g of activity, leading to 45.15% of starch degraded. The activity grew with fermentation time until the 15th day, after that the amylase was deactivated rapidly. An orthogonal experiment designed for the study illustrated that degradation rate of starch in corn grits attained to maximum, 50.51%, when 100g of corn grits, added 16g of soybean meal, were fermented by C. versicolor for 12 days, in an initial pH 5.5. After fermenting, compared to the nonfermented... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coriolus versicolor; Corn grits; Starch; Solid state fermentation; Α-amylase. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000400015 |
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| Boukraa,Laïd; Benbarek,Hama; Moussa,Ahmed. |
| To evaluate the synergistic action of starch on the antifungal activity of honey, a comparative method of adding honey with and without starch to culture media was used. Candida albicans has been used to determine the minimum inhibitory concentration (MIC) of five varieties of honey. In a second step, lower concentrations of honey than the MIC were incubated with a set of concentrations of starch added to media to determine the minimum synergistic inhibitory concentration (MSIC). The MIC for the five varieties of honey without starch against C. albicans ranged between 40% and 45% (v/v). When starch was incubated with honey and then added to media, a MIC drop has been noticed with each variety. It ranged between 7% and 25%. A negative correlation has been... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antifungal; Honey; Starch; Diastase Number; Candida albicans. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000100010 |
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| Koga,Luciana Numata; Fenelon,Vanderson Carvalho; Miyoshi,Juliana Harumi; Moriwaki,Cristiane; Wessel,Kamila Byanca Baldin; Mangolim,Camila Sampaio; Matioli,Graciette. |
| A repetitive batch process was employed followed by membrane ultrafiltration system to produce low-cost cyclodextrins (CDs) using commercial enzymes Toruzyme® cyclomaltodextrin glucanotransferase (CGTase) and its kinetic parameters were determined. The ultrafiltration system enabled the removalof inhibitory products from the reaction medium, allowing the enzyme to be recovered for reuse. A 10 kDa membrane was used to separate the different CDs produced by the CGTase. The substrates evaluated were maltodextrin, corn starch and cassava starch at 5, 10 and 15% (w/V), in the presence and absence of 10% (V/V) ethanol. After reaction for 132 h, 10% (w/V) cassava starch in the presence of ethanol provided the best results with 32.1 mg/mL of β-CD. Maximum... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cyclodextrin; Commercial CGTase; Ultrafiltration; Repetitive batches; Starch. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100641 |
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| Gomes,Mara de Menezes de Assis; Lagôa,Ana Maria Magalhães Andrade; Machado,Eduardo Caruso; Medina,Camilo Lázaro; Machado,Marcos Antônio. |
| Gas exchanges, sucrose, starch and reducing sugar contents were analyzed in leaves of orange trees with and without Citrus Variegated Chlorosis (CVC), a disease caused by the bacteria Xylella fastidiosa. Healthy plants (HP) and diseased plants (DP) were evaluated 20 and 26 months after bacterial inoculation, in October 1998 and April 1999, respectively. On the first evaluation date, CO2 assimilation rates for HP were greater than DP in the early morning and midday, but on the second date they were greater in HP all along the day. On the first date, there was an increase in the sucrose content of DP at 15:00 h and 17:00 h in relation to HP. On the second evaluation date, DP presented greater reducing sugar content only in the early morning while sucrose... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Citrus sinensis L.; Photosynthesis; Reducing sugars; Starch; Sucrose; Xylella fastidiosa. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202003000100004 |
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| Gonçalves,José Francisco de C.; Fernandes,Andreia V.; Oliveira,Antonio Fernando M.; Rodrigues,Lílian F.; Marenco,Ricardo A.. |
| The contents of the main components of the primary metabolism (soluble sugars, starch, proteins, oils, fatty acids) and minerals (P, Ca, Mg, K, Fe, Zn, Mn, Cu) were characterized in seeds of five Brazilian Amazon tree species (Andira parviflora, Bertholletia excelsa, Helicostylis tomentosa, Hymenaea parviflora, and Parkia pendula). Soluble sugar contents were high in P. pendula seeds (14 %), whereas starch predominated in A. parviflora seeds (58.7 %). A. parviflora and H. parviflora seeds were rich in proteins (35.1 % and 32.4 %, respectively). The oil contents ranged from 1.4 % in A. parviflora to 70.7 % in B. excelsa. Only B. excelsa and P. pendula seeds may be considered oilseeds, with 70.7 % and 28.4 % oil, respectively. The fatty acid compositions... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fatty acids; Minerals; Oils; Proteins; Soluble sugars; Starch. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202002000200009 |
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| Trombini,Fernanda Rossi Moretti; Mischan,Martha Maria; Leonel,Magali. |
| ABSTRACT: The current research aimed to evaluate the effects of extrusion parameters on the physical characteristics of extruded blends of cassava leaf flour and starch. A factorial central composite design with four independent variables and the response surface methodology were used to evaluate the results of color parameters (L*, a*, b*), water absorption index, water solubility index and paste properties, according to the variations in the leaf flour percentage (1.5 to 7.5%), extrusion temperature (60 to 100ºC), screw speed (175 to 231rpm) and moisture (20 to 30%). Extrusion conditions affect color, water absorption and water solubility indexes and paste properties of blends. The intermediate tested conditions of variable parameters lead to obtain... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leaves; Starch; Color; Water absorption; Viscosity. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000300573 |
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| Souza,Hugo Antonio Lima de; Bentes,Ádria de Sousa; Ladeira,Taiana Marina Souza; Lopes,Alessandra Santos; Pena,Rosinelson da Silva. |
| This study evaluates the physical and physicochemical properties of three sugary cassava (Manihot esculenta Crantz) landraces: São Francisco Bag 3, Manicueira 62, and Castanhal Iracema. These three landraces showed high estimated productivity (≥3.93kg plant-1) and had a high sugar content (≥3.92g 100g-1 of root), making them viable for use in syrup production, especially the São Francisco Bag 3 landrace (4.76g 100g-1). The Manicueira 62 landrace had the highest starch content (4.40g 100g-1). The three sugary cassava landraces exhibited high levels of cyanide (>195mg kg-1), indicating the need for processing prior to consumption. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manihot esculenta Crantz; Sugar; Starch; Composition. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013000500006 |
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| Neumann,Mikael; Nörnberg,José Laerte; Leão,Guilherme Fernando Mattos; Horst,Egon Henrique; Figueira,Danúbia Nogueira. |
| ABSTRACT: The use of nitrogen fertilizers in corn crops for silage can improve both production and, theoretically, nutritional quality, especially carbohydrate and protein fractions, thereby optimizing animal production. Thus, the aim of this study was to evaluate the effect of increasing levels of nitrogen fertilization in carbohydrate and protein fractionation on the resulting corn silage (Zea mays L.). Nitrogen fertilization was carried out in the urea form (45-00-00) in V5 stage, at the following doses: T1: 0kg N ha-1; T2: 45kg N ha-1; T3: 90kg N ha-1; and T4: 135kg N ha-1. Crops were harvested at R4 stage and submitted to ensiling in experimental PVC silos. The chemical composition of the resulting silage was evaluated after silo opening. There was no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Starch; Organic acids; C fraction; PH; Solubility. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000500251 |
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| Almeida,Eveline Lopes; Marangoni,André Luis; Steel,Caroline Joy. |
| This study evaluated and compared the effect of the utilization of five different non-conventional starches (chickpea, common bean, Peruvian carrot, sweet potato and white bean) and four different commercial starches (cassava, corn, potato and rice) in pound cake. Common bean starch, followed by Peruvian carrot starch were the non-conventional starch sources that showed tendency to improve the technological quality of pound cake, mainly in relation to corn starch, the most common commercial source. With these sources, the batters presented lower specific gravity and the cakes presented higher specific volume, lighter color, lower crumb moisture reduction during the storage period, and better texture attributes during all the cake shelf-life. Moreover,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bean; Chickpea; Peruvian carrot; Potato; Cassava; Starch; Pound cake. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013001100028 |
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| Registros recuperados: 122 | |
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