Materias
(144)
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Ethanol and mycelial biomass production from dilute-acid hydrolyzed hemicellulose fraction of rice straw was investigated by cultivation of Mucor indicus and compared with cultivation of Pichia stipitis. The hydrolysis resulted in 189 g xylose a[...]texto impreso
Article : documento electrónico
GIANCARLA TRESSO, Autor ; DANIELA CÓRDOVA, Autor ; NADIA MARTÍNEZ, Autor ; SUBURÚ, GABRIELA, Autor ; FAJARDO, SIMONE, Autor ; FERREIRA, ELIZABETH, Autor ; MARÍA VICTORIA GELABERT, Autor |En este artículo encontrarán información útil acerca de los ensayos de aptitud - interlaboratorios, con alcance a toda la cadena arrocera nacional, que provee el Laboratorio Tecnológico del Uruguay (LATU). Una forma de minimizar los riesgos inhe[...]texto impreso
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JEN HOW HUANG, Autor ; GUNTER ILGEN, Autor ; PETER FECHER, Autor | 2010Extraction using 0.28 M nitric acid at 95 °C for 90 min recovers not only arsenic quantitatively from rice grains independent of types but also preserves arsenic speciation completely. It is simple, economic, effective and reliable and is especi[...]texto impreso
The effect of y-pre-irradiation of cellulose m cellulose containing waste plants was investigated through enzymatic and acidic hydrolysis reaction. Pre-irradiation of waste rice straw. chaff and saw dust accelerated the enzymatic hydrolysis by c[...]documento electrónico
El objetivo de la Red Tecnológica del Arroz es incorporar al sistema productivo cultivares que permitan la mezcla y/o posible sustitución de cultivares líderes, cumpliendo con las necesidades de los productores y los estándares de calidad de los[...]documento electrónico
MARTÍN LÓPEZ RODRÍGUEZ, Autor ; ARCIA, PATRICIA, Autor ; FERNANDO PÉREZ DE VIDA, Autor ; GIANCARLA TRESSO, Autor ; MARÍA VICTORIA FIGUEREDO, Autor ; CAROLINA LUZARDO, Autor ; GONNET, DANIEL, Autor ; URAGA, RAUL, Autor ; M. N. SANGUINETTI, Autor ; BILLIRIS, ALEJANDRA, Autor | 2020El arroz es el quinto rubro de exportación en el país, representando el 95% de su producción. En la actualidad la cadena se ve amenazada por una baja rentabilidad para productores e industriales que está llevando a una disminución muy importante[...]Article : texto impreso
BILLIRIS, ALEJANDRA, Autor ; MARTÍN LÓPEZ RODRÍGUEZ, Autor ; ARCIA, PATRICIA, Autor ; GÓMEZ GUERRERO, BLANCA, Autor ; DOTTA, GABRIELA, Autor ; GIANCARLA TRESSO, Autor ; FERNANDO PÉREZ DE VIDA, Autor ; PEDRO BLANCO, Autor ; MARÍA NOEL SANGUINETTI, Autor ; QUEHEILLE, NATALIA , Autor |Se desarrolla la formación y metodología de trabajo de la Red Tecnológica del Arroz de Uruguay.Article : documento electrónico
LUCÍA DEL PILAR FALCHI CASTELL, Autor ; PAULINA PIZZORNO, Autor ; FIORELLA IAQUINTA, Autor ; ADRIANA COUSILLAS, Autor |Dentro INNOTEC (17, ene.-jun. 2019)El Arsénico (As) es un elemento natural de la corteza terrestre de gran relevancia toxicológica debido a los efectos nocivos sobre la salud que provoca su exposición. Los elevados niveles de As en agua subterránea en Argentina y Chile son amplia[...]Article : documento electrónico
HUGO FAVERO, Autor ; SERGIO GÓMEZ, Autor |Se presentan los resultados obtenidos por los laboratorios de ACA en comparativa con los laboratorios de la industria. Se destaca el trabajo del LATU al que se enviaron más de cien muestras.documento electrónico
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The comprehensive knowledge found in Rice: Chemistry and Technology, Third Edition will guide the research for developing new applications and lead rice utilization into the coming decades. The third edition is covers topics ranging from the ric[...]texto impreso
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F. E. BARTON, II, Autor ; D. S. HIMMELSBACH, Autor ; A. M. MCCLUNG, Autor ; ELAINE T. CHAMPAGNE, AutorThree types of spectroscopy were used to examine rice quality: near infrared (NIR), Raman, and proton nuclear magnetic resonance (1H NMR). Samples from 96 rice cultivars were tested. Protein, amylose, trans-parency, alkali spreading values, whi[...]documento electrónico
UNITED STATES DEPARTMENT OF AGRICULTURE. ECONOMIC RESEARCH SERVICE | Washington [U.S.A.] : USDA | 2009Global and U.S. trading prices have dropped sharply from last spring’s record highs, but remain well above pre-surge levels. Despite the decline in prices, the 2008/09 U.S. season-average farm price is projected at a record $14.50-$15.50 per cwt[...]texto impreso
Pretreatment of rice straw by steam explosion prior to enzymatic saccharification has been investigated. The study sought the optimun conditions of steam pressure and steaming time.Article : texto impreso
Rice, thermally canned as an acid food, was studied to determine if the process would provide a product which was safe and acceptable. Heat penetration studies showed that heat transfer was initially by convection and then by conduction as the r[...]documento electrónico
T. Yupsanis, Autor ; M. Moustakas, Autor ; S. Karakoli, Autor | 1991Albumins, prolamins and globulins were extracted from milled rice of long, medium and short grain varieties Japonica type and analyzed by native PAGE and SDS-PAGE. A computer aided analysis of protein patterns was employed in order to estimate t[...]texto impreso
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WALTER N. L. DOS SANTOS, Autor ; DANNUZA D. CAVALCANTE, Autor ; SAMUEL M. MACEDO, Autor ; JESSICA S. NOGUEIRA, Autor ; ERIK G. P. DA SILVA, AutorThis paper proposes a procedure for the determination of total arsenic in rice using slurry sampling and hydride generation atomic fluorescence spectrometry (HG AFS). During optimization, water, hydrochloric acid, and nitric acid solutions were [...]texto impreso
Rice straw was divided into fractions by morphological character, and the enzymatic hydrolysis of these fractions was investigated. Chemical composition and the proportions of cells of different compositions were very variable in different fract[...]texto impreso
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ANTONIO SPANU, Autor ; LEONARDO DAGA, Autor ; ANNA MARIA ORLANDONI, Autor ; GAVINO SANNA, AutorThe bioaccumulation of arsenic compounds in rice is of great concern worldwide because rice is the staple food for billions of people and arsenic is one of the most toxic and carcinogenic elements at even trace amounts. The uptake of arsenic com[...]texto impreso
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DOTTA, GABRIELA ; SUBURÚ, GABRIELA ; BILLIRIS, ALEJANDRA | Montevideo [URUGUAY] : Laboratorio Tecnológico del Uruguay (LATU) | 2007Varios factores son los que deben ser considerados para evaluar los diferentes cultivares de arroz. Todos ellos están relacionados con obtener un necesario equilibrio entre el interés de la industria, el de los productores arroceros, y también[...]Article : texto impreso
RODRIGUEZ, MARIA CECILIA, Autor ; SUBURÚ, GABRIELA, Autor ; TORRES, MARINA, Autor ; LAURA OLAZÁBAL, Autor ; TORRE, ALEJANDRA, Autor |Dentro INNOTEC (No. 1, dic. 2006)The rice crop is one of the most developed agricultural activities in Uruguay, having become the third item of export. Although the main product of the rice chain is the elaborated rice, in the recent years several industries have begun to produ[...]documento electrónico
BILLIRIS, ALEJANDRA, Autor ; T. THUROW, Autor ; SIEBENMORGEN, TERRY J., Autor | 2016Individual kernel drying rates could be used to better estimate intra-kernel MC and material state gradients, which in turn would help estimate the occurrence of kernel fissuring inside rice dryers. Drying curves of individual kernels were obtai[...]texto impreso
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GIANCARLA TRESSO, Autor ; DANIELA CÓRDOVA, Autor ; SUBURÚ, GABRIELA, Autor ; FLORES, LAURA, Autor | 2021Este trabajo presenta un estudio de las fuentes de variabilidad en las mediciones analíticas realizadas para definir la calidad física de los granos de arroz para consumo humano, evaluada en función de sus defectos. La principal preocupación en [...]documento electrónico
P.N. WILLIAMS, Autor ; A.H. PRICE, Autor ; A RAAB, Autor ; S.A. HOSSAIN, Autor ; J FELDMANN, Autor ; AA MEHARG, Autor | 2005Ingestion of drinking water is not the only elevated source of arsenic to the diet in the Bengal Delta. Even at background levels, the arsenic in rice contributes considerably to arsenic ingestion in subsistence rice diets. We set out to survey [...]