Consulta: subjectFacets:"Sucrose"
Registros recuperados: 42
Data/hora: 02/06/2024 10:37:58

Evaluación Agroindustrial de Variedades de Caña de Azúcar (Saccharum officinarum L.) en el Ingenio El Modelo, Úrsulo Galván, Veracruz
Provedor de dados: 32
Autores: Martínez Torres, Daniel Rolando.
Se realizó la evaluación agroindustrial de 12 variedades de caña de azúcar en los ciclos de planta y soca, con el propósito de identificar y seleccionar las más sobresalientes de acuerdo a parámetros productivos. Estos materiales fueron proporcionados por el Ingenio El Modelo y se establecieron en el campo experimental del Centro de Bachillerato Tecnológico agropecuario No. 17 (C.B.T.a No.17). Esta investigación se desarrolló considerando algunos lineamientos metodológicos generados por el extinto Instituto para el Mejoramiento de la Producción de Azúcar (IMPA), sobre la evaluación agroindustrial de nuevas variedades. Se utilizó un diseño de bloques completos al azar con tres repeticiones, en el cual los tratamientos fueron las variedades. En el ciclo...
Tipo: Tesis
Palavras-chave: Caña de azúcar; Variedades; Evaluación; Sacarosa; Maestría; Agroecosistemas Tropicales; Sugar cane; Varieties; Evaluation; Sucrose.
Ano: 2009
URL: http://hdl.handle.net/10521/1609

Suspensión del riego en caña de azúcar durante la maduración: efecto en el rendimiento y calidad del jugo.
Provedor de dados: 32
Autores: Méndez Adorno, Jesús Manuel.
Para incrementar la concentración de azúcares previo a la cosecha en el área de abastecimiento del Ingenio Pujiltic, se establecieron cinco parcelas experimentales sembradas con las variedades, Mex57-473 y Mex69-290, en suelos Vertisol éutrico y Gleysol mólico, respectivamente en donde se evaluó la suspensión del riego a 75, 60, 45, 30, 15 días antes de la cosecha. Durante el desarrollo del experimento se tomaron datos, cada quince días, de grados Brix en la parte media del tallo y contenido de humedad de suelo de 0-30cm de profundidad. El volumen de agua de riego aplicada se midió con un vertedor triangular y los requerimientos hídricos del cultivo se estimaron por el método de Blaney y Criddle con datos de las estaciones meteorológicas automatizadas del...
Palavras-chave: Riego; Caña de azúcar; Sacarosa; Grados Brix; Rendimiento; Maduración; Producción Agroalimentaria en el Trópico; Maestría; Irrigation; Cane sugar; Sucrose; Brix; Yield; Maturity.
Ano: 2012
URL: http://hdl.handle.net/10521/1776

Biochemical properties of an extracellular &amp;#946;-D-fructofuranosidase II produced by Aspergillus phoenicis under Solid-Sate Fermentation using soy bran as substrate
Provedor de dados: 69
Autores: Rustiguel,Cynthia Barbosa; Oliveira,Arthur Henrique Cavalcanti de; Terenzi,Héctor Francisco; Jorge,João Atílio; Guimarães,Luis Henrique Souza.
The filamentous fungus A. phoenicis produced high levels of ?-D-fructofuranosidase (FFase) when grown for 72 hrs under Solid-State Fermentation (SSF), using soy bran moistened with tap water (1:0.5 w/v) as substrate/carbon source. Two isoforms (I and II) were obtained, and FFase II was purified 18-fold to apparent homogeneity with 14% recovery. The native molecular mass of the glycoprotein (12% of carbohydrate content) was 158.5 kDa with two subunits of 85 kDa estimated by SDS-PAGE. Optima of temperature and pH were 55Ã¯Â¿Â½C and 4.5. The enzyme was stable for more than 1 hr at 50Ã¯Â¿Â½C and was also stable in a pH range from 7.0 to 8.0. FFase II retained 80% of activity after storage at 4Ã¯Â¿Â½C by 200 hrs. Dichroism analysis showed the presence of random...
Tipo: Journal article
Palavras-chave: Agroindustrial substrate; Aspergillus; ?-D-fructofuranosidase; Solid state fermentation; Sucrose.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582011000200002

Sucrose synthase molecular marker associated with sugar content in elite sugarcane progeny
Provedor de dados: 74
Autores: Silva,Jorge A. da; Bressiani,Jose A.
We describe the development and application of an expressed sequence tag (EST)-derived restriction fragment length polymorphism (RFLP) marker for sugarcane elite genotypes which can be used for quantitative trait loci (QTL) tagging for sugar content. EST-derived RFLP markers for proteins involved in sucrose metabolism have been used in Southern analysis for mapping and gene tagging in elite sugarcane clones. A single dose marker, obtained from a sucrose synthase EST associated with sugar content at the alpha = 0.01 probability level, is presented for sugarcane breeding. Utilization of EST homologues to known genes for generation of molecular markers accelerated the identification of a QTL controlling an important trait-sugar content. Sugarcane bacterial...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Sucrose; Synthase; Expressed; Sequence; Tag.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000200020

Physiological and Metabolic Responses of Freshwater and Brackish-Water Strains of   Microcystis aeruginosa   Acclimated to a Salinity Gradient: Insight into Salt Tolerance
Provedor de dados: 5
Autores: Georges Des Aulnois, Maxime; Roux, Pauline; Caruana, Amandine; Réveillon, Damien; Briand, Enora; Hervé, Fabienne; Savar, Veronique; Bormans, Myriam; Amzil, Zouher; Atomi, Haruyuki.
Proliferation of microcystin (MC)-producing Microcystis aeruginosa in brackish waters has been described in several locations and represents a new concern for public and environmental health. While the impact of a sudden salinity increase on M. aeruginosa physiology has been studied, less is known about the mechanisms involved in salt tolerance after acclimation. This study aims to compare the physiological responses of two strains of M. aeruginosa (PCC 7820 and PCC 7806), which were isolated from contrasted environments, to increasing salinities. After acclimation, growth and MC production rates were determined and metabolomic analyses were conducted. For both strains, salinity decreased the biovolume, growth, and MC production rates and induced the...
Tipo: Text
Palavras-chave: Acclimation; Metabolomic; Microcystis; Salinity; Sucrose; Trehalose; Ecophysiology.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00588/70031/68012.pdf

Pollen as a means of international transfer of germplasm
Provedor de dados: 30
Autores: Mallikarjuna, N.,( Nalini Mallikarjuna ).
Palavras-chave: Chickpeas; Sucrose; Self pollination; Germplasm; Crossing over; Grain; Developmental stages; Purification; Organic compounds; Legumes.
Ano: 2007
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3290

Bud Necrosis:Bud Necrosis: A Disease of Groundnut Caused by Tomato Spotted Wilt Virus
Provedor de dados: 30
Autores: D.V.R.
Palavras-chave: Necrosis; ELISA; Groundnuts; Sucrose; Amines; Insecticides; Cytoplasmic organelles; Poultry equipment; Viruses; Antibiotics.
Ano: 1990
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4665

Carbon sources and polyethylene glycol on soybean somatic embryo conversion
Provedor de dados: 86
Autores: Körbes,Ana Paula; Droste,Annette.
Somatic embryogenesis is an efficient method for the production of target cells for soybean genetic transformation. However, this method still offers low percentages of plant regeneration, and perhaps is related to the maturation process and high morphological abnormalities of the matured embryos. This study aimed to identify a maturation medium that could contribute to the outcome of more efficient plant regeneration results. Embryogenic clusters, derived from cotyledons of immature seeds of the soybean cultivars Bragg and IAS5, were used as starting material for embryos development. Different maturation media were tested by using 6% maltose, 3% sucrose or 6% sucrose, combined with or without 25 g L-1 of the osmotic regulator polyethylene glycol...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; PEG-8000; Sucrose; Osmotic regulation.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2005000300003

Plant architecture of Paspalum vaginatum schwartz modified by nitrate and ammonium nutrition
Provedor de dados: 86
Autores: Beltrano,José; Ronco,Marta Guillermina; Barreiro,Roberto; Montaldi,Edgardo Raúl.
Paspalum vaginatum Schwartz plants were grown under greenhouse conditions in a continuous-flow hydroponic culture, containing NO3- or NH4+or NH4NO3 as nitrogen source. After 30 days, the size of aerial biomass and root system decreased significantly when plants were supplied with NH4+as exclusive nitrogen source. Compared to NO3- treatment, reducing and non-reducing sugars were decreasing together with a significant increase in amino acids content. NH4+-nutrition caused tillers to grow toward an orthogravitropic position (average angle of 68° with respect to the horizontal), and with NO3--nutrition, tillers tended to become diagravitropic (average angle of 23°). With NH4NO3 all the parameters measured had values in between those of the other two sources....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitrogen source; Orthogravitropism; Diagravitropism; Sucrose.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X1999000700007

Assimilate partitioning in leaves of the raffinose-storing herb Lamium album L.: photosynthesis and carbon partitioning throughout the photoperiod
Provedor de dados: 88
Autores: Kochhar,A.; Rees,T. Ap; Pollock,C.J.
Lamium album accumulates starch, sucrose and raffinose-family oligosaccharides (RFO) as the major products of photosynthesis. These products were measured in leaves throughout a sixteen-hour photoperiod and under various irradiance conditions. There was continuous accumulation of sucrose and starch. The rate of gas exchange was higher at 500 µEm² s-1 and 900 µEm²s-1 than at 300 µEm² s-1. The rate of photosynthesis did not decline over the sixteen-hour photoperiod, which suggested that there was no short-term feed back inhibition due to sucrose accumulation in this plant. When the products of photosynthesis were compared at the end of the photoperiod, only sucrose increased in abundance at high irradiance. The RFO pool in leaves was shown to contain...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lamium album; Partitioning; Raffinose family oligosaccharides; Starch; Sucrose.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042003000400011

Assimilate partitioning in leaves of the raffinose-storing herb Lamium album L.: the effects of altering source-sink balance
Provedor de dados: 88
Autores: Kochhar,A.; Rees,T. Ap; Pollock,C.J.
In Lamium album, sucrose and raffinose-family oligosaccharides are the major products of photosynthesis that are stored in leaves. Using gas analysis and 14CO2 feeding, we compared photosynthesis and the partitioning of recently-fixed carbon in plants where sink activity was lowered by excision of flowers and chilling of roots with those where sink activity was not modified. Reduction in sink activity led to a reduction in the maximum rate of photosynthesis, to retention of fixed carbon in source leaves and to the progressive accumulation of raffinose-family oligosaccharides. This ultimately affected the extractable activities of invertase and sucrose phosphate synthase. At the end of the light period, invertase activity was significantly higher in treated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lamium album; Oligosaccharides; Source-sink interactions; Starch; Sucrose.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042003000400012

Application of artificial neural networks in the prediction of sugarcane juice Pol
Provedor de dados: 91
Autores: Coelho,Anderson P.; Bettiol,João V. T.; Dalri,Alexandre B.; Fischer Filho,João A.; Faria,Rogério T. de; Palaretti,Luiz F.
ABSTRACT Innovative techniques that seek to minimize the costs of production and the laboriousness of certain operations are one of the great challenges in the sugar-energy sector nowadays. Thus, the objective of the present study was to estimate the Pol values ​​of sugarcane juice as a function of °Brix and wet cake weight (WCW) using artificial neural network (ANN) modeling. A database was organized consisting of 204 technological analyses from a field experiment with 15 treatments and 2 years of evaluation. 75% of the data were used for the calibration of the model and 25% for its validation. Multilayer Perceptron ANNs were used for calibration and validation of the data. Before calibration, the variables were normalized. The training algorithm used was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trs; Brix; Sucrose; Technological quality.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000100009

Effects of preculture with sucrose and aba on cell suspensions water status and its relation with vitrification resistance
Provedor de dados: 93
Autores: SEIJO,GUILLERMO.
Changes in cell water relations during precultures were followed in an attempt to understand the mechanism of cell hardening for cryopreservation by vitrification. Medium containing 0.4 M sucrose (psiw=-1.45 MPa) and containing 5 mg L-1 of ABA (MT psiw=-0.73 MPa and MS psiw=-0.48 MPa) were used to harden cell suspensions of orange and carrot. Preculture in these medium did not cause a significant decrease of cell viability, however, it improved the cell survival to PVS2 and liquid nitrogen expositions. When cells were inoculated into medium containing 0.4 M sucrose, the cell psiw decreased rapidly until reach the medium psiw , and turgor was also severely reduced or disappeared. Subsequently, cell psis began to decrease and after 48 h of treatment in low...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Preculture; Cell suspension; Sucrose; ABA; Cryopreservation.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-31312000000200007

Growth of Bauhinia forficata Link, Curcuma zedoaria Roscoe and Phaseolus vulgaris L. cell suspension cultures with carbon sources
Provedor de dados: 63
Autores: Mello,Marcia Ometto; Dias,Carlos Tadeu Santos; Amaral,Antônio Francisco Campos; Melo,Murilo.
Cell suspension cultures of Bauhinia forficata Link, Curcuma zedoaria Roscoe and Phaseolus vulgaris L. were used to test plant ability to utilize an alternative to sucrose as carbon source and energy for growth. Glycerol, sorbitol and galactose were the alternative carbon sources tested. Cell suspension cultures established on liquid medium containing sucrose were transferred to culture medium supplemented with sucrose or glycerol, or sorbitol, or galactose as the sole carbon source. Fresh and dry weight increasing and protein content showed marked differences among the different carbon sources used. Sucrose was the best carbon source for all the three plant species tested. Galactose and glycerol promoted slow or no growth of the three studied species....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sucrose; Glycerol; Sorbitol; Galactose; Tissue culture.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162001000300007

Sugarcane maturity estimation through edaphic-climatic parameters
Provedor de dados: 63
Autores: Scarpari,Maximiliano Salles; Beauclair,Edgar Gomes Ferreira de.
Sugarcane (Saccharum officinarum L.) grows under different weather conditions directly affecting crop maturation. Raw material quality predicting models are important tools in sugarcane crop management; the goal of these models is to provide productivity estimates during harvesting, increasing the efficiency of strategical and administrative decisions. The objective of this work was developing a model to predict Total Recoverable Sugars (TRS) during harvesting, using data related to production factors such as soil water storage and negative degree-days. The database of a sugar mill for the crop seasons 1999/2000, 2000/2001 and 2001/2002 was analyzed, and statistical models were tested to estimate raw material. The maturity model for a one-year old...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sucrose; Predicting; Quality; Mathematical model; Climatology.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000500004

Climatic effects on sugarcane ripening under the influence of cultivars and crop age
Provedor de dados: 63
Autores: Cardozo,Nilceu Piffer; Sentelhas,Paulo Cesar.
The lack of information about the effects of cultivars, crop age and climate on the sugarcane (Saccharum ssp.) crop yield and quality has been the primary factor impacting the sugar-ethanol sector in Brazil. One of the processes about which we do not have a satisfactory understanding is sugarcane ripening and the effects of cultivars, crop age and climate on that. Sugarcane ripening is the process of sucrose accumulation in stalks, which is heavily influenced by several factors, mainly by climatic conditions such as air temperature and water deficits. Because it is a complex process, studies of the variables involved in sugarcane ripening can provide important information, resulting in a better use of commercial cultivars, bringing advantages to growers,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saccharum spp; Air temperature; Precipitation; Water deficit; Sucrose.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000600011

Physiological model to estimate the maturity of sugarcane
Provedor de dados: 63
Autores: Scarpari,Maximiliano Salles; Beauclair,Edgar Gomes Ferreira de.
Sugarcane (Saccharum spp.) grows in different weather and management conditions which directly affect crop maturation. These conditions lead to the necessity of quantifying crop response to different stimuli for planning purposes. Forecast models for the quality of raw material are important tools in sugarcane farming, especially the forecast curve of sucrose accumulation in shoots. The goal of these models is to supply yield estimates during the crop cycle, aiming to characterize alternatives and to increase the efficacy for management and strategic decisions. The objective of this project was to develop empiric models capable of obtaining estimates of total recoverable sugar (TRS), for the varieties RB72454, SP81-3250 and SP80-1842 during the crop cycle,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Climatology; Crop models; Productivity; Regression; Sucrose.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000500006

Acclimatization of 'VR043-43' (Vitis vinifera x Vitis rotundifolia) grapevine rootstock
Provedor de dados: 63
Autores: Machado,Marília Pereira; Biasi,Luiz Antonio; Ritter,Marlice; Ribas,Luciana Lopes Fortes; Zanette,Flávio.
The pre-acclimatization stage can be used to improve micropropagation protocols and increase the yield of produced plants. The influence of sucrose and photon flux density (PFD) levels on the acclimatization of in vitro-grown 'VR043-43' (Vitis vinifera x Vitis rotundifolia) grapevine rootstocks was evaluated. Rooted shoots were obtained from 4-week-old in vitro shoots cultivated in QL (Quoirin and Lepoivre, 1977) culture medium supplemented with 15, 30 and 45 g L-1 of sucrose. The experiment was kept in a 25 ± 2ºC growth room, under 16-h photoperiod and PFD of 18 µmol m-2 s-1 or 43 µmol m-2 s-1. Plants were transferred to an intermittent misting system greenhouse for 10 d followed by 20 d of once-a-day watering routine using a handheld hose. Plant height...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tissue culture; Sucrose; Micropropagation.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000400007

Sucrose, salicylic acid and citric acid solutions to extent vase life of Vriesea incurvata Gaudich. (Bromeliaceae) floral scapes
Provedor de dados: 109
Autores: Pulido,Edwin; Rejane-Negrelle,Raquel; Cuquel,Francine Lorena.
Abstract Vriesea incurvata is a native bromeliad from Brazilian Atlantic Rainforest and commercialized as an ornamental pot plant. The morphological characteristics of its floral scape may also indicate it as a new product to use as a cut flower. However, its postharvest behavior was unknown. This study was conducted to determine its vase life by applying distilled water (control) and solutions containing sucrose (50 g L-1), salicylic acid (50 μM), and citric acid (50 g L-1) for periods of 8 and 24 h. Floral scapes maintained in solutions showed vase life greater than 16 days when compared to the control (distilled water). However, solutions with sucrose evidenced the best behaviors related to the maintenance of physiological and aesthetic features during...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aesthetic characteristics; Bromeliads; Cut flowers; Sucrose; Vase life.
Ano: 2021
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122021000100027

Cultivation of immature Capsicum spp. embryos for incompatible-crossing embryo rescue
Provedor de dados: 1
Autores: Walter, Rafael; Carvalho, Virginia Silva; Generoso, Andressa Leal; Rodrigues, Rosana; Gravina, Geraldo de Amaral.
  The in vitro culture of embryos is an important technique to enable the rescue of embryos from incompatible crosses. Studies analyzing the factors that affect the in vitro culture of zygotic embryos are scarce. This study evaluated the effect of the genotype (Capsicum baccatum and C. frutescens), the composition of the culture medium (MS and ½ MS medium with different concentrations of sucrose, IAA and GA3) and the stage of development (globular, cordiform, torpedo and cotyledonary) in the in vitro culture of immature embryos. Embryo germination was influenced primarily by the stage of development of the embryo and the composition of the culture medium. Regardless of the species, the most suitable culture medium for the germination of globular and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rescue embryo; Peppers; Embryo stage; Sucrose; Mineral salts.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39474

Cultivation of immature Capsicum spp. embryos for incompatible-crossing embryo rescue
Provedor de dados: 1
Autores: Walter, Rafael; Carvalho, Virginia Silva; Generoso, Andressa Leal; Rodrigues, Rosana; Gravina, Geraldo de Amaral.
  The in vitro culture of embryos is an important technique to enable the rescue of embryos from incompatible crosses. Studies analyzing the factors that affect the in vitro culture of zygotic embryos are scarce. This study evaluated the effect of the genotype (Capsicum baccatum and C. frutescens), the composition of the culture medium (MS and ½ MS medium with different concentrations of sucrose, IAA and GA3) and the stage of development (globular, cordiform, torpedo and cotyledonary) in the in vitro culture of immature embryos. Embryo germination was influenced primarily by the stage of development of the embryo and the composition of the culture medium. Regardless of the species, the most suitable culture medium for the germination of globular and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rescue embryo; Peppers; Embryo stage; Sucrose; Mineral salts.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39474

Optimization of asparaginase production from Zymomonas mobilis by continuous fermentation
Provedor de dados: 3
Autores: Menegat, Francieli Bortoluzzi; Baldo, Cristiani; Celligoi, Maria Antonia Pedrine Colabone; Buzato, João Batista.
Asparaginase is an enzyme used in clinical treatments as a chemotherapeutic agent and in food technology to prevent acrylamide formation in fried and baked foods. Asparaginase is industrially produced by microorganisms, mainly gram-negative bacteria. Zymomonas mobilis is a Gram-negative bacterium that utilizes glucose, fructose and sucrose as carbon source and has been known for its efficiency in producing ethanol, sorbitol, levan, gluconic acid and has recently aroused interest for asparaginase production. Current assay optimizes the production of Z. mobilis asparaginase by continuous fermentation using response surface experimental design and methodology. The studied variables comprised sucrose, yeast extract and asparagine. Optimized condition obtained...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sucrose; Asparagine; Yeast extract; Enzyme; Microbial production; Factorial design.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/31057

Influence of hesperidin and vitamin C on glycemic parameters, lipid profile, and DNA damage in rats treated with sucrose overload
Provedor de dados: 42
Autores: FRANKE,SILVIA I.R.; MOLZ,PATRÍCIA; MAI,CAMILA; ELLWANGER,JOEL H.; ZENKNER,FERNANDA F.; HORTA,JORGE A.; PRÁ,DANIEL.
ABSTRACT We evaluated the influence of hesperidin and vitamin C (VitC) on glycemic parameters, lipid profile, and DNA damage in male Wistar rats treated with sucrose overload. Rats were divided into six experimental groups: I-water control; II-sucrose control; III-hesperidin control; IV-VitC control; V-co-treatment of sucrose plus hesperidin; VI-co-treatment of sucrose plus VitC. We measured the levels of triglycerides, total cholesterol, HDL-c, LDL-c, fasting glucose, and glycated hemoglobin (A1C). DNA damage was evaluated in blood and brain cells using the comet assay and the micronucleus test was used to evaluate chromosomal damages in the rat bone marrow. Co-treatment with VitC, but not with hesperidin, normalized the serum glucose. No effect of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DNA damage; Hesperidin; Glycated hemoglobin; Lipid profile; Sucrose; Vitamin C.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000502203

Sugars levels of four sugarcane genotypes in different stem portions during the maturation phase
Provedor de dados: 42
Autores: PEREIRA,LAÍS F.M.; FERREIRA,VILMA M.; OLIVEIRA,NELSON G. DE; SARMENTO,PEDRO L.V.S.; ENDRES,LAURÍCIO; TEODORO,IÊDO.
ABSTRACT Maturation is a characteristic of sugarcane plant (Saccharum spp.) and even when grown under the same soil and climate conditions the varieties differ on the maturation curve. Thus, studies that allow establishing maturation curves of different sugarcane genotypes in the local soil and climate may indicate the proper harvesting period to ensure better quality of the raw material. This study aimed to analyze the levels of soluble sugars during the maturation phase and assess the technological and productivity indexes of four irrigated sugarcane genotypes in the region of Rio Largo, Alagoas. The experiment was conducted in randomized blocks in a 4 x 2 x 5 factorial: four genotypes (RB92579, RB98710, RB99395 and RB961003), two stem portions...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fructose; Glucose; Sucrose; Total soluble solid; Yield.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000301231

High consumption of sucrose induces DNA damage in male Wistar rats
Provedor de dados: 42
Autores: FRANKE,SILVIA I.R.; MOLZ,PATRÍCIA; MAI,CAMILA; ELLWANGER,JOEL H.; ZENKNER,FERNANDA F.; HORTA,JORGE A.; PRÁ,DANIEL.
ABSTRACT The purpose of this study was to determine the effects of the high consumption of sucrose on the levels of DNA damage in blood, hippocampus and bone marrow of rats. Male Wistar rats were treated for 4 months with sucrose (10% for 60 initial days and 34% for the following 60 days) in drinking water, and then, glycemia and glycated hemoglobin (A1C) were measured. Levels of DNA damage in blood and hippocampus were evaluated by the comet assay. The micronucleus test was used to evaluate chromosomal damages in the bone marrow. The sucrose treatment significantly increased (p&lt;0.01) the serum glucose levels (~20%) and A1C (~60%). The level of primary DNA damage was significantly increased (p&lt;0.05) in hippocampal cells (~60%) but not in peripheral...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Comet assay; Diabetes; DNA damage; Glycated hemoglobin; Micronucleus; Sucrose.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000602657

Adulterants interference on Fourier Transform Infrared analysis of raw milk
Provedor de dados: 45
Autores: Ribeiro,D.C.S.Z.; Tavares,W.L.F.; Leite,M.O.; Cerqueira,M.O.P.; Lima,J.S.; Ferreira,L.F.; Feijó,F.A.C.; Haddad,J.P.; Fonseca,L.M.
RESUMO O objetivo deste trabalho foi analisar as leituras de composição do leite cru por meio de espectrofotometria FTIR, utilizando-se curva de regressão PLS, bem como as contagens de células somáticas e bacteriana total por citometria de fluxo, após adição de amido e sacarose. O leite cru foi adulterado com três concentrações de amido e sacarose (0,1%, 0,5% e 1%), colocado em frascos contendo bronopol ou azidiol, os quais foram armazenados em duas temperaturas (7±2°C e 25±2°C ). As análises foram realizadas após zero, três, 24, 48, 72 e 168 horas de armazenamento. O modelo de regressão linear múltipla foi utilizado para análise estatística. A adição de amido e sacarose resultou em mudança significativa (P&lt;0,05) para todas as variáveis dependentes. O...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Raw milk; FTIR; Startch; Sucrose; Composition analysis.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000501649

Cryopreservation of Cyrtopodium hatschbachii Pabst (Orchidaceae) immature seeds by encapsulation-dehydration
Provedor de dados: 47
Autores: Surenciski,Mauro Rodrigo; Flachsland,Eduardo Alberto; Terada,Graciela; Mroginski,Luis Amado; Rey,Hebe Yolanda.
The aim of the present study was to investigate the efficiency of the encapsulation-dehydration technique for cryopreservation of Cyrtopodium hastchbachii Pabst seeds. Immature seeds of this species were cryopreserved by an encapsulation-dehydration technique. Seeds of five immature pods, 120 days after pollination, were encapsulated in 3% calcium alginate matrix and pretreated in liquid medium supplemented with 0.08 M sucrose (24 h), 0.15 M sucrose (24 h), 0.25 M sucrose (48 h), 0.5 M sucrose (24 h) and 0.75 M sucrose (24 h) in shaker at 60 rpm. Alginate beads were dehydrated 5 h in silicagel and immersed in liquid nitrogen for 12 h. Cryopreserved beads were thawed at 30°C for 1 min, rehydrated using the same liquid mediums (0.75 M sucrose (24 h), 0.5 M...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cryoconservation; Liquid nitrogen; Calcium alginate; Activated charcoal; Sucrose.
Ano: 2012
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452012000100002

Evaluation of the shelf-life of vegetable-type soybean pods
Provedor de dados: 52
Autores: Santana,Andréia Cristina; Carrao-Panizzi,Mercedes Concordia; Mandarino,José Marcos Gontijo; Leite,Rodrigo Santos; Silva,Josemeyre Bonifácio da; Ida,Elza Iouko.
The shelf-life of the vegetable-type soybean pods stored under different conditions was evaluated by chemical characteristics and color. The pods were harvested in the R6 stage and stored either at 30 or 7ºC for 9 d. After the storage period, the pods were blanched and threshed, and the immature green grains were used for the analysis. The protein content decreased after 6 d of storage at 7ºC. There was no difference in the lipid content after the storage at 30 and 7ºC for 9 d. The starch and sucrose contents decreased after the first day of storage at 30ºC. There was no difference in trypsin inhibitor activity until 6 d of storage at 30 and 7ºC. The green color of the pods that was an indication of the quality that was maintained when stored at 7ºC during...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vegetable-type soybean; Sucrose; Starch; Trypsin inhibitor; Color.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000400015

Effects of culture conditions on the production of inulinase by Kluyveromyces marxianus
Provedor de dados: 52
Autores: Cazetta,Marcia Luciana; Monti,Rubens; Contiero,Jonas.
The present study was conducted to investigate the influence of initial sucrose concentration, pH and aeration rate on biomass and inulinase production by Kluyveromyces marxianus var. bulgaricus in a stirred batch reactor. Maximum inulinase activity (15.29 UmL-1) was obtained at a sucrose concentration of 10 g L-1, pH 5.0 and aeration rate of 1 vvm. The 20 g L-1 sucrose concentration was suitable for cell growth; however, enzymatic activity at this concentration was inhibited due to catabolic repression. The increase in aeration rate caused a reduction in enzyme activity with no relevant biomass increase.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Kluyveromyces marxianus var. bulgaricus; Sucrose; Inulinase; Biomass; Batch fermentation.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000300027

Variation in phytate accumulation in common bean (Phaseolus vulgaris L.) fruit explants
Provedor de dados: 52
Autores: Coelho,Cileide Maria Medeiros; Bellato,Cláudia Mattos; Garcia,Andréia Karime Marcelino; Vitorello,Victor Alexandre; Azevedo,Ricardo Antunes.
The in vitro synthesis of phytate was studied in common bean fruit explants. Different concentrations of sucrose; phosphorus (P); myo-inositol; abscisic acid (ABA); glutamine and methionine, were tested. Fixed concentrations of these compounds were tested at different periods (0, 3, 6 and 9 days). Variation in phytate coincided with different concentrations of sucrose, myo-inositol, P and ABA for the duration tested. These compounds caused an accumulation of phytate and were more effective in the presence of myo-inositol and P. The accumulation of P varied less than phytate for the different treatments tested in vitro. In conclusion, P, sucrose, ABA, and myo-inositol caused an increase in the phytate of bean seed, showing that it could be possible to alter...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abscisic acid; Glutamine; Phosphorus; Phytic acid; Sucrose.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000100020

Morphological and physiological photon flux influence under in vitro culture of apple shoots
Provedor de dados: 52
Autores: Zanandrea,Ilisandra; Bacarin,Marcos Antonio; Braga,Eugenia Jacira Bolacel; Bianchi,Valmor João; Peters,José Antonio.
The aim of the present study was to evaluate the growth and development of apple rootstock shoots submitted to different photon flux densities (7, 14, 21 and 60 µmol m-2 s-1) and three culture media. The best photon flux for maximizing growth, number of shoots and leaves was 14 µmol m-2 s-1, which also resulted in the highest values of chloroplastic pigments. On the other hand, the highest photon flux (60 µmol m-2 s-1) decreased significantly these parameters. Medium with reduced sucrose concentration did not affect the analyzed parameters, enabling an efficient multiplication of the cultivar with only 1% of sucrose.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mallus; Apple; Sucrose; Photon flux density; Culture medium.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500005

The production of sorbitol by permeabilized and immobilized cells of Z. mobilis in sucrose
Provedor de dados: 52
Autores: Vignoli,Josiane Alessandra; Celligoi,Maria Antonia Colabone; Silva,Rui Sérgio Ferreira da; Barros,Márcio de.
The production of sorbitol by permeabilized and immobilized cells of Zymomonas mobilis in Luffa cylindrica was investigated in sucrose medium. A full 2³ factorial design was used to verify the influence of each factor and its interactions. The cell permeabilization showed a significant and negative effect upon the production of sorbitol, while the time of cultivation and the immobilization process were significant and positive. The results demonstrated that the cell immobilization and the time of cultivation of 36 h presented higher production of sorbitol.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Permeabilization; Immobilization; Sucrose; Z. mobilis.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000500020

Cryopreservation of mouse morulae in glycerol, sucrose and honeybee royal jelly
Provedor de dados: 62
Autores: VISINTIN,José Antônio; GARCIA,José Fernando; PANTANO,Thais; D’ÁVILA ASSUMPÇÃO,Mayra Elena Ortiz.
Compacted mouse morulae were frozen at 0.3ºC/min. or 0.5ºC/min. from -6ºC to -24ºC or -32ºC in 10% of glycerol plus different sucrose concentrations with or without 0.1% of honeybee royal jelly. Embryos were thawed in water bath at 22ºC for 20 seconds and cryoprotectant dilution was done in three steps. Embryos were cultured in Whitten’s medium for 24, 48 and 72 hours at 37ºC, 5% of CO2 and 100% of humidity. The in vitro development ranged from 56.6% to 100% after 72 hours. Expanded blastocysts were transferred to pseudopregnant recipients on the third day of the estrous cycle. Viable fetuses rates for embryos frozen to -24 or -32ºC at 0.3ºC/minute in 10% glycerol + 10% sucrose, 10% glycerol + 10% sucrose + 0.1% honeybee royal jelly, 10% glycerol + 0.1%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mice; Embryo; Cryopreservation; Sucrose; Royal jelly.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962000000400009

Changes in sodium appetite evoked by lesions of the commissural nucleus of the tractus solitarius
Provedor de dados: 56
Autores: Ogihara,C.A.; Schoorlemmer,G.H.M.; Colombari,E.; Sato,M.A.
Ablation of the area postrema/caudal nucleus of the tractus solitarius (NTS) complex increases sodium intake, but the effect of selective lesions of the caudal NTS is not known. We measured depletion-induced sodium intake in rats with electrolytic lesions of the commissural NTS that spared the area postrema. One day after the lesion, rats were depleted of sodium with furosemide (10 mg/kg body weight, sc) and then had access to water and a sodium-deficient diet for 24 h when 1.8% NaCl was offered. Water and saline intakes were measured for 2 h. Saline intake was higher in lesioned than in sham-lesioned rats (mean ± SEM: 20 ± 2 vs 11 ± 3 mL/2 h, P &lt; 0.05, N = 6-7). Saline intake remained elevated in lesioned rats when the tests were repeated 6 and 14 days...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nucleus of the solitary tract; Sodium appetite; Sucrose; Furosemide.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000600014

Examining the side effects of sucrose for pain relief in preterm infants: a case-control study
Provedor de dados: 56
Autores: Linhares,M.B.M.; Gaspardo,C.M.; Souza,L.O.; Valeri,B.O.; Martinez,F.E.
Sucrose solution is recommended as relevant pain relief management in neonates during acute painful procedures; however, only a few studies have analyzed the potentially adverse effects of sucrose administration to preterm neonates. The goal of this study was to examine the potential side effects of sucrose for pain relief in preterm infants, assessing feeding and weight gain during hospitalization and their feeding patterns postdischarge. The study sample consisted of 43 preterm neonates divided into two groups: a sucrose group (SG, n=18) and a control group (CG, n=25) in which no sucrose was administered. The SG received 0.5 mL/kg 25% oral sucrose for 2 min prior to all acute painful procedures during three consecutive days. A prospective review of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sucrose; Pain relief; Side effects; Feeding; Preterm.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000600527

Woronin bodies in Penicillium janczewskii Zaleski
Provedor de dados: 58
Autores: Pessoni,Rosemeire A.B.; Freshour,Glenn; Figueiredo-Ribeiro,Rita de Cássia L.; Hahn,Michael G.; Braga,Márcia R.
Penicillium janczewskii Zaleski is an efficient microorganism for the production of extracellular inulinases and grows rapidly on medium containing sucrose or inulin as carbon source. Maintenance of this filamentous fungus on inulin medium induces secretion of large amounts of inulinases, but the resulting mycelium has thinner cell walls that easily collapse and break. Woronin bodies in hyphae of P. janczewskii grown on sucrose and inulin substrates were observed. No significant differences in the number, location, size and shape of Woronin bodies and level of plugging were observed in cultures of the fungus grown on the two carbon sources. The data indicate that the presence of Woronin bodies in P. janczewskii could not be associated with more easily...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Woronin bodies; Penicilliun; Inulin; Sucrose.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000200005

Inverted sugar syrup attained from sucrose hydrolysis using a membrane reactor
Provedor de dados: 60
Autores: Tomotani,Ester Junko; Vitolo,Michele.
Invertase, whether adsorbed on styrene-divinylbenzene copolymers or otherwise, was used for continuous sucrose hydrolysis using a cell-type membrane reactor (CTMR), coupled with an ultra (UF-100kDa), or a microfiltration (MF- pore diameter of 5 µm) membrane. In all tests, the pH (5.5), temperature (30 ºC), reaction volume (10 mL) and agitation (100 rpm) were set constant; whereas, variable parameters were: feeding rate (0.4, 0.8 and 1.6 h-1), inlet sucrose concentration (2.5, 6.5, 50 and 100 mM) and enzyme/resin ratio (1.64 mg or 3.28 mg of protein per 25, 50 or 100 mg of resin). The best result (yield of 100%, steady-state duration over 20h and specific reaction rate over 243 x 10-3 mmol/h.mE) was obtained when insoluble invertase (1.64 mg protein/100 mg...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sucrose; Invert sugar; Membrane reactor.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502010000300022

Chlorophyll a fluorescence of sweet potato plants cultivated in vitro and during ex vitro acclimatization
Provedor de dados: 61
Autores: Cassana,Francine F.; Falqueto,Antelmo R.; Braga,Eugenia J. B.; Peters,Jose A.; Bacarin,Marcos A.
Sweet potato (Ipomoea batatas L.) plants were cultivated in vitro in Murashige and Skoog (MS) medium with 20 and 40 g L-1 of sucrose under two different photon flux densities (21 and 60 µmol m-2 s-1). Leaves developed in vitro mostly showed high variable to maximum fluorescence ratio (F V/F M) , indicating good development of photosynthetic apparatus. This ratio decreased during leaf aging, especially in the plants cultivated in vitro on medium with higher sucrose concentration and higher photon flux. Leaves developed ex vitro showed high F V/F M ratio during whole experiment. The effective photochemical efficiency (F V'/F M') was maximum at 15th day after emergence of leaves. Photosynthetic potential rate was higher in leaves developed in vitro than in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Culture medium; Photon flux density; Photosystem; Sucrose.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202010000300003

Gas exchanges and carbohydrate metabolism in orangetrees with citrus variegated chlorosis
Provedor de dados: 61
Autores: 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

Cold induced changes on sugar contents and respiratory enzyme activities in coffee genotypes
Provedor de dados: 65
Autores: Partelli,Fábio Luiz; Vieira,Henrique Duarte; Rodrigues,Ana Paula Dias; Pais,Isabel; Campostrini,Eliemar; Chaves,Maria Manuela Coelho Cabral; Ramalho,José Cochicho.
The present research aimed to characterize some biochemical responses of Coffea canephora (clones 02 and 153) and C. arabica (Catucaí IPR 102) genotypes subjected to low positive temperatures, helping to elucidate the mechanisms involved in cold tolerance. For that, one year old plants were subjected successively to 1) a temperature decrease (0.5°C a day) from 25/20°C to 13/8°C (acclimation period), 2) a three day chilling cycle (3x13/4°C) and to 3) a recovery period of 14 days (25/20°C). In Catucaí (less cold sensitive when compared to clone 02) there was an increased activity in the respiratory enzymes malate dehydrogenase and pyruvate kinase. Furthermore, Catucaí showed significant increases along the cold imposition and the higher absolute values after...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffee tree; Coffea sp.; Sucrose; Enzymes; Cold stress.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000400006

Carbohydrates on the growth of Cattleya schilleriana Reichb.f. seedlings (Orchidaceae)
Provedor de dados: 65
Autores: Galdiano Júnior,Renato Fernandes; Mantovani,Cibele; Lemos,Eliana Gertrudes de Macedo.
ABSTRACT: The aim of the present study was to evaluate the effects of carbohydrate supplementation on the propagation of the orchid Cattleya schilleriana. The 120-d-old seedlings were subcultured in fructose-, glucose-, or sucrose-supplemented (0, 15, 30, and 45g L-1) ½ MS culture medium (half-strength macronutrient concentrations), using a completely random design with four repetitions per treatment. After 120d of treatment, root number and length, leaf number and length, and fresh weight were evaluated, and seedling survival was evaluated after 75d of acclimatization in a greenhouse. The in vitro growth data were submitted to regression analysis, whereas the percentage survival data were analyzed using ANOVA and Tukey’s test. Both in vitro growth and ex...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: In vitro culture; Native orchid; Glucose; Sucrose; Acclimatization.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000700203

Carbohydrate measuvements on four brands of coconut water
Provedor de dados: 64
Autores: Oliveira,Hernete de Jesus Santos; Abreu,Celeste Maria Patto de; Santos,Custódio Donizete dos; Cardoso,Maria das Graças; Teixeira,Juliana Érica Carvalho; Guimarães,Nilson César Castanheira.
Utilization of water from dry coconuts to produce long-life coconut water, using a 20% mixture of green coconut water in order to reach the quality standard demanded by Brazilian customers, has been done since 2000. That is one more alternative for the by products from Cocos nucifera L. processing industries, introducing marketing advantages like: better storage, longer shelf life, transportation, and visual quality to the customer. Packed with ultrasonic Swedish technology, coconut water has been already commercialized in establishments in Southeastern Brazil. In this work, carbohydrate contents of four coconut water brands and the natural coconut water were comparatively analyzed, and the contents of fructose, glucose, sucrose, total sugars, and reducing...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cocos nucifera L.; Carbohydrates; Fructose; Sucrose; Glucose.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542003000500013