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Chemical fractionation of carbohydrate and protein composition of corn silages fertilized with increasing doses of nitrogen Ciência Rural
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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Physicochemical properties of three sugary cassava landraces Ciência Rural
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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Starches from non - conventional sources to improve the technological characteristics of pound cake Ciência Rural
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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Carbohydrate metabolism in floral structures of Lilium pumilum in different development stages Ciência Rural
Santos,Mirelle Nayana de Sousa; Mapeli,Ana Maria; Tolentino,Márcia Martins.
ABSTRACT: Lilium pumilum is a species that stands out in floriculture for presenting orange inflorescences that attract the consumer. This study thus aimed at characterizing the carbohydrate metabolism of floral structures of L. pumilum in different development stages. For this purpose, carbohydrate levels (total soluble sugars, reducing sugars, non-reducing sugars, and starch), at different floral stages (E0 - bud with no color; E1 - bud at early coloring; E2 - orange bud; E3 - open flower; E4 - senescent flower) were quantified after extraction with ethanol. Lilium pumilum flowers showed high energy potential during floral opening and senescence; total soluble sugars were the main carbohydrates present in the species, reducing with the floral...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Total soluble sugars; Starch; Lily.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000701142
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Potential use of byproducts from cultivation and processing of sweet potatoes Ciência Rural
Akoetey,Winifred; Britain,Margaret Mead; Morawicki,Ruben Omar.
ABSTRACT: The cultivation and processing of sweet potatoes into a variety of products yields both solid and liquid organic waste. Solid waste includes peelings and trimmings from the sweet potato root and sweet potato leaves and vines. Liquid waste results from various processing methods and creates significant amounts of nutrient rich waste water. Sweet potato waste materials contain carbohydrates, proteins, phenolic compounds, macro and micro nutrients, and pigments that have the potential of being extracted or utilized for various downstream processes and products. This review examines many of the different ways that these waste products can be utilized.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sweet potato; Byproduct; Food processing; Starch; Fermentation.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000500751
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Instant blend from cassava derivatives produced by extrusion Ciência Rural
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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Cambio de variables productivas y ruminales en borregos alimentados con una dieta a base de grano de sorgo más un amortiguador ruminal y una mezcla en zimática amilolítica Colegio de Postgraduados
Lee Rangel, Héctor Aarón.
Los rumiantes en producción intensiva reciben dietas basadas en maíz o sorgo y en ambos cereales el almidón es el principal componente. Por tanto, se hizo un experimento de crecimiento (50 d) usando 32 borregos Criollos machos (enteros; 21.4 ± 5 kg PV), alojados en jaulas metabólicas individuales, para evaluar una mezcla enzimática amilolítica α-amilasa proveniente de Bacillus licheniformis y glucoamilasa proveniente de Aspergillus niger y un amortiguador (Acid buf®). Los siguientes tratamientos se asignaron al azar a las unidades experimentales (borregos): A) sin enzima ni amortiguador (testigo); B) α-amilasa (ENMEX®; 1.3 g proteína kg-1 sorgo) y glucoamilasa (ENMEX®; 1.3 g proteína kg-1 sorgo) sin amortiguador; C) sin enzima y con amortiguador...
Tipo: Tesis Palavras-chave: Borrego; Almidón; Enzimática; Amortiguador; Sheep; Starch; Enzymatic; Buffer.
Ano: 2007 URL: http://hdl.handle.net/10521/1175
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Cambio de variables productivas y ruminales en borregos alimentados con una dieta a base de grano de sorgo más un amortiguador ruminal y una mezcla en zimática amilolítica Colegio de Postgraduados
Lee Rangel, Héctor Aarón.
Los rumiantes en producción intensiva reciben dietas basadas en maíz o sorgo y en ambos cereales el almidón es el principal componente. Por tanto, se hizo un experimento de crecimiento (50 d) usando 32 borregos Criollos machos (enteros; 21.4 ± 5 kg PV), alojados en jaulas metabólicas individuales, para evaluar una mezcla enzimática amilolítica α-amilasa proveniente de Bacillus licheniformis y glucoamilasa proveniente de Aspergillus niger y un amortiguador (Acid buf®). Los siguientes tratamientos se asignaron al azar a las unidades experimentales (borregos): A) sin enzima ni amortiguador (testigo); B) α-amilasa (ENMEX®; 1.3 g proteína kg-1 sorgo) y glucoamilasa (ENMEX®; 1.3 g proteína kg-1 sorgo) sin amortiguador; C) sin enzima y con amortiguador...
Palavras-chave: Borrego; Almidón; Enzimática; Amortiguador Sheep; Starch; Enzymatic; Buffer.
Ano: 2012 URL: http://hdl.handle.net/10521/884
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Cambio de variables productivas y ruminales en borregos alimentados con una dieta a base de grano de sorgo más un amortiguador ruminal y una mezcla en zimática amilolítica Colegio de Postgraduados
Lee Rangel, Héctor Aarón.
Los rumiantes en producción intensiva reciben dietas basadas en maíz o sorgo y en ambos cereales el almidón es el principal componente. Por tanto, se hizo un experimento de crecimiento (50 d) usando 32 borregos Criollos machos (enteros; 21.4 ± 5 kg PV), alojados en jaulas metabólicas individuales, para evaluar una mezcla enzimática amilolítica α-amilasa proveniente de Bacillus licheniformis y glucoamilasa proveniente de Aspergillus niger y un amortiguador (Acid buf®). Los siguientes tratamientos se asignaron al azar a las unidades experimentales (borregos): A) sin enzima ni amortiguador (testigo); B) α-amilasa (ENMEX®; 1.3 g proteína kg-1 sorgo) y glucoamilasa (ENMEX®; 1.3 g proteína kg-1 sorgo) sin amortiguador; C) sin enzima y con amortiguador...
Palavras-chave: Borrego; Almidón; Enzimática; Amortiguador Sheep; Starch; Enzymatic; Buffer.
Ano: 2012 URL: http://hdl.handle.net/10521/792
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Effects of substrates and reaction conditions on production of cyclodextrins using cyclodextrin glucanotransferase from newly isolated Bacillus agaradhaerens KSU-A11 Electron. J. Biotechnol.
Ibrahim,Abdelnasser S.S; El-Tayeb,Mohamed A; Elbadawi,Yahya B; Al-Salamah,Ali A.
The effects of reaction conditions on cyclodextrins (CDs) production by CGTase from newly isolated Bacillus agaradhaerens KSU-A11 is reported. Among six types of starch tested, potato starch gave highest starch conversion into CDs. In addition, CDs yield was about three fold higher when using gelatinized potato starch in comparison to raw starch. The total CDs production was increased with increasing pH, showing maximum starch conversion at pH 10. Furthermore, the proportion of γ-CD was relatively higher under slightly acidic-neutral conditions than at alkaline pH with a maximum proportion of 35.6% at pH 7 compared to 7.6% at pH 10. Maximum starch conversion into CDs was seen at reaction temperature of 55ºC. Lower reaction temperature led to...
Tipo: Journal article Palavras-chave: Bacillus agaradhaerens; Cyclodextrin glucanotransferase; Cyclodextrinc; Enzymatic reaction; Starch.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582011000500004
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Biodegradation of a blended starch/natural rubber foam biopolymer and rubber gloves by Streptomyces coelicolor CH13 Electron. J. Biotechnol.
Watcharakul,Sirimaporn; Umsakul,Kamontam; Hodgson,Brian; Chumeka,Wannapa; Tanrattanakul,Varaporn.
Background: The growing problem of environmental pollution caused by synthetic plastics has led to the search for alternative materials such as biodegradable plastics. Of the biopolymers presently under development, starch/natural rubber is one promising alternative. Several species of bacteria and fungi are capable of degrading natural rubber and many can degrade starch. Results: Streptomyces coelicolor CH13 was isolated from soil according to its ability to produce translucent halos on a mineral salts medium, MSM, supplemented with natural rubber and to degrade starch. Scanning electron microscope studies showed that it colonized the surfaces of strips of a new starch/natural rubber biopolymer and rubber gloves and caused degradation by forming holes,...
Tipo: Journal article Palavras-chave: Biodegradation; Biopolymer; Natural rubber; Starch; Streptomyces coelicolor.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582012000100008
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Genetic variability for waxy genes in Argentinean bread wheat germplasm Electron. J. Biotechnol.
Vanzetti,Leonardo Sebastián; Pflüger,Laura Alicia; Rodríguez-Quijano,Marta; Carrillo,José Maria; Helguera,Marcelo.
Amylose and amylopectin are the two polysaccharides that constitute starch in bread wheat and the enzyme GBSSI (Granule-bound starch synthase I), also known as waxy protein, is responsible for amylose synthesis in storage tissues. Decrease of the amylose content in starch has been associated with the lack of waxy protein(s). In this work, different sets of PCR markers were used to characterize the genetic variability of waxy loci from 103 Argentinean bread wheat cultivars. For the Wx-A1 locus, Wx-A1a and a novel molecular allele designed Wx-A1g were detected. Wx-B1 locus showed three alleles (Wx-B1a, Wx-B1b, Wx-B1e), and Wx-D1 locus showed only the Wx-D1a allele. Novel single-locus allele specific markers for Wx-A1b, Wx-B1b and Wx-D1b null alleles were...
Tipo: Journal article Palavras-chave: Characterization; Molecular markers; Triticum aestivum L.; Starch; Waxy genes; Wheat.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582009000100004
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Chemical attributes of soil and dry mass accumulation of maize fertilized with cassava wastewater REA
Magalhães,Adriana G.; Rolim,Mario M.; Duarte,Anamaria S.; Pedrosa,Elvira M. R.; Silva,Enio F. de F. e.
The aim of this study was to evaluate chemical attributes alterations of a clay-loam textured soil and dry mass accumulation of maize submitted to application of cassava wastewater doses in three assessment periods. The experiment was conducted under greenhouse using a completely randomized experimental design in a factorial 5 × 3, with four replicates. The analyzed factors of research were doses of cassava wastewater (0; 12.6; 25.2; 50.4; 75.6 m3 ha-1) andassessment periods (20, 40 and 52 days after germination). The following parameters were determined: electric conductivity of soil saturation extract, pH in water, content of available P, content of exchangeable K+, Ca2+, Mg2+ and Na+ of soil, dry mass of leaves and stem. The application of cassava...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Residue; Starch; Nutrients; Organic fertilization; Zea mays.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162015000300458
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Physiological differences of ‘Crocantela’ lettuce cultivated in conventional and hydroponic systems Horticultura Brasileira
Souza,Priscila F de; Borghezan,Marcelo; Zappelini,Julia; Carvalho,Lara R de; Ree,Joseph; Barcelos-Oliveira,Jorge L; Pescador,Rosete.
ABSTRACT Conventional soil and hydroponic growing systems have inherent differences in water and nutritional availability. These differences may affect plant physiological development and biochemistry. The objective of this study was to evaluate lettuce (Lactica sativa) cv. ‘Crocantela’development in either a hydroponic system or in soil through analyses of vegetative growth; chlorophyll abundance; and sugar and starch content. We evaluated the dry mass (DM), fresh mass (FM), number of leaves (LN), stomatal density and contents of chlorophyll, carotenoids, sugars and starch. Due to the improved nutritional conditions, especially in relation to macronutrients, plants grown in hydroponic system presented significant differences in chlorophyll a (0.4481...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lactuca sativa; Biomass; Chlorophyll; Starch; Stomatal density.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000100101
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Relação entre o teor de amido e a concentração de fumonisinas totais em milho cultivado em três sistemas de produção. Infoteca-e
ARAÚJO, D. D. da S.; QUEIROZ, V. A. V.; SIMEONE, M. L. F.; COTA, L. V.; COSTA, R. V. da; RESENDE, A. V. de; BORGHI, E..
O amido é uma importante fonte de energia para o milho, sendo o carboidrato mais comum na alimentação humana. A presença de amido favorece a infecção por fungos, entre eles, os produtores de fumonisinas, um metabólito tóxico a humanos e animais. O milho é um componente importantes em sistemas produtivos diversificados, como aqueles em que a soja e braquiárias fazem parte. Entretanto, existem dúvidas se o teor de amido pode ser afetado pelos sistemas de produção e se há relação com as concentrações de fumonisinas. Dessa forma, o objetivo deste trabalho foi avaliar a relação do teor de amido com a concentração de fumonisinas em milho cultivado em três sistemas de produção: a) Sucessão milho no verão/pousio, correspondendo a uma condição de monocultura. b)...
Tipo: Folhetos Palavras-chave: Fumonisina; Amido; Zea Mays; Contaminação Fúngica; Micotoxina; Sistema de Produção; Fumonisins; Starch; Farming systems; Corn.
Ano: 2023 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1159475
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Utilização da amiréia na alimentação de ruminantes. Infoteca-e
SALMAN, A. K. D..
Realizou-se um trabalho de revisão de literatura com o intuito de levantar os motivos pelos quais pode ser vantajoso a produção e utilização da amiréia na alimentação de ruminantes.
Tipo: Folhetos Palavras-chave: Revisão de literatura; Literature review; Nutrição Animal; Bovino; Uréia; Amido; Alimentação Suplementar; Animal nutrition; Cattle; Dietary supplements; Starch; Urea.
Ano: 2008 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/709704
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Teor e caracterização do amido de genótipos de mandioca em diferentes idades de colheita. Infoteca-e
OLIVEIRA, L. A. de; SANTOS, V. da S.; CARVALHO, C. W. P. de; SASAKI, F. F. C.; REIS, R. C.; JESUS, J. L. de; COELHO FILHO, M. A..
Reseumo: O amido de mandioca é utilizado diretamente no consumo humano para ração animal e como matéria-prima para uma ampla gama de produtos industriais. O conhecimento básico das características do amido é necessário para identificar potenciais aplicações, melhorar sua qualidade e promover o aumento da produção de amido de mandioca. Nesse sentido, o objetivo deste trabalho foi investigar o teor e as características do amido de variedades e híbridos de mandioca em diferentes idades de colheita. Oito genótipos de mandioca (BRS Aipim Brasil, BRS Dourada, Eucalipto, Saracura, 2009 02-13, 2009 02-16, 2009 05-09 e 2009 12-20) foram colhidos aos nove, 12 e 15 meses após o plantio. O amido foi extraído das raízes e determinado o teor de amilose/amilopectina,...
Tipo: Folhetos Palavras-chave: Mandioca; Amido; Amilose; Genótipo; Colheita; Cassava; Starch; Amylose; Genotype; Harvesting.
Ano: 2023 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1158317
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Arroz com o quê? Receitas doces e salgadas à base de arroz. Infoteca-e
OLIVEIRA, M. A. S. de; VIEIRA, N. R. de A.; CHAVES, M. O.; CINALLI, L. T. B..
Nesta nova edição foi incluído um novo capítulo com receitas doces e salgadas à base de arroz, mas voltadas ao público que possui alguma restrição alimentar. Em várias receitas foi utilizada a farinha de arroz em substituição à farinha de trigo, para atender às pessoas com intolerância ao glúten. Em outras, foi suprimido o leite para a intolerantes à lactose. Além disso, foram fornecidas receitas com reduzido teor de açúcar e sem ovos.
Tipo: Livros Palavras-chave: Arroz; Culinária; Carboidrato; Amido; Rice; Cooking; Carbohydrates; Starch.
Ano: 2017 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1085401
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Expression and activities of pancreatic enzymes in developing sea bass larvae (Dicentrarchus labrax) in relation to intact and hydrolyzed dietary protein; involvement of cholecystokinin ArchiMer
Cahu, Chantal; Ronnestad, I; Grangier, V; Zambonino, Jose-luis.
In order to assess the influence of dietary protein on digestive enzyme expression and cholecystokinin (CCK) content in sea bass larvae, four groups of larvae were fed experimental diets from mouth opening until day 42: three isonitrogenous diets with increasing protein hydrolysate levels (0%, 14% and 46% of crude matter) and one diet incorporating starch. The groups fed high starch or high protein hydrolysate level exhibited the lowest growth. The final weight in these groups was 9.5 and 5.6 mg, respectively, whereas it reached approximately 20.0 mg in the groups fed 0% or 14% protein hydrolysate level. The highest levels of trypsin secretion were observed in larvae fed the lowest protein hydrolysate level. Paradoxically, the groups fed diet containing...
Tipo: Text Palavras-chave: Starch; Sea bass larvae; Protein hydrolysate; Pancreatic enzyme secretion; Cholecystokinin.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/publication-442.pdf
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The Staling and Texture of Bread Made Using the Yudane Dough Method OAK
Yamauchi, Hiroaki; Yamada, Daijyu; Murayama, Daiki; Marvin Santiago, Dennis; Orikasa, Yoshitake; Koaze, Hiroshi; Nakaura, Yoshiko; Inouchi, Naoyoshi; Noda, Takahiro; 山内, 宏昭; 折笠, 善丈; 小疇, 浩.
White breads with Yudane dough (Yudane bread) were made from commercial hard flour by the no first fermentation method. Yudane dough was prepared by mixing boiling water and flour at a ratio of 1:1. The dough at 20 and 40% (w/w, flour base) was added to the total bread dough. In the Yudane bread making method, an extended final proof, lower dough gas retention and gassing power, as well as specific loaf volume were observed compared to conventional bread making (control) without Yudane dough. Also, the moisture content of the Yudane breads increased with increasing water absorption for bread making. The total and reducing saccharide and maltose contents in the water-soluble fraction of Yudane bread also increased with the volume of added Yudane dough. The...
Palavras-chave: Bread; Staling; Texture; Starch; Retrogradation.
Ano: 2014 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4300
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