Coffee Residues
Mostrando 13-24 de 32 artigos, teses e dissertações.
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13. Lignocellulolytic enzyme production of Pleurotus ostreatus growth in agroindustrial wastes
The mushroom Pleurotus ostreatus has nutritional and medicinal characteristics that depend on the growth substrate. In nature, this fungus grows on dead wood, but it can be artificially cultivated on agricultural wastes (coffee husks, eucalyptus sawdust, corncobs and sugar cane bagasse). The degradation of agricultural wastes involves some enzyme complexes m
Braz. J. Microbiol.. Publicado em: 2012-12
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14. Otimização e validação de metodologia para determinação de aldicarbe e carbofurano em amostras de café bebida / Optimization and validation of methodology for determination of aldicarb and carbofuran in coffee samples
Domestic use of aldicarb and carbofuran has resulted in accidental or even intentional poisonings, making it a severe public health problem. A mixture of "chumbinho" (aldicarb) in coffee is frequently a poisoning agent due to strong odor and color of coffee which hide the presende of "chumbinho". Thus, the objective of this study was to adapt, optimize and v
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/02/2010
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15. Estoque e qualidade da matéria orgânica do solo em áreas cultivadas com café sob sistemas agroflorestal e a pleno sol / Soil organic matter stock and quality in agroforestry and full sun coffee systems
Soil organic matter (SOM) restoring is considered a main goal in the enhancement of soil quality. The evaluation of changes in the SOM as a result of soil management practices is fundamental to identify strategies to increase agricultural production, avoiding soil degradation and decreasing the emission of greenhouse gases. In Brazil, no-tillage has been bro
Publicado em: 2009
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16. Produção e qualidade biológica e química de diferentes vermicompostos para a produção de cenouras rumo à sustentabilidade dos agroecossistemas / Production and biological and chemical quality of different vermicomposts for the carrots production forward to a sustainability of agroecosystems.
The objective of this work was to evaluate the biological and chemical quality of the different vermicomposted residues and its used as basic fertilization for the carrots production. The trial was divided in two stages: 1st) vermicomposting of the different organic residue and its biological and chemical assessment and 2nd) evaluation of the vermicomposts a
Publicado em: 2009
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17. Avaliação do carvão ativado da torta prensada de Raphanus sativus como adsorvente para a remoção de corantes básicos presentes em soluções aquosas diluídas
The performance of the cold-pressed cake from Raphanus sativus (L. Var.) oilseeds activated carbon, a solid residue from biodiesel production, was evaluated as an adsorbent for basic dyes. The main objective is to use the adsorbent in the treatment of effluents generated by textile industries. Methylene blue (MB) dissolved in dilute aqueous solutions was cho
Publicado em: 2009
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18. PreparaÃÃo de carvÃo ativado e impregnaÃÃo com ferro ou cromo para aplicaÃÃes em processos de descontaminaÃÃo ambiental. / Preparation and impregnation of activated carbons with iron or chromium for aplication on environmental descontamination processes.
This work has five chapters, with objective of the preparation of activated carbons (AC) from agroindustrial residues (coffee hulls and wet blue leather) and preparation of catalysts using these AC for degradation of organic compounds. In the first chapter is showed a review from the literature about AC, the surface characterisitics and properties, the uses
Publicado em: 2008
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19. Matéria orgânica de Latossolos Húmicos: análises térmica e espectroscópica, efeito do uso e correção química / Organic matter of humic Latosol (Oxisol): thermal and spectroscopic analyses, land use and chemical correction
The objective of this study was to contribute to the clarification of several aspects related to the behavior of organic matter (OM) in highly weathered tropical soils. Six samples of humic A horizon Latosol were collected from three sites in Minas Gerais: i) Sericita, (under coffee crop, pasture, ferns and Atlantic Forest fragment); ii) Mutum (under Atlanti
Publicado em: 2008
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20. Evolução da lesão aterosclerótica e perfil lipídico de camundongos knockout Apo E alimentados com resíduo de café seco e fermentado / Evaluation of the atherosclerotic lesion and lipid profile of Apo E Knockout mice fed with dry residue of coffee and fermentaded
A cafeicultura é uma atividade agrícola que produz um grande volume de resíduos líquidos e sólidos, gerando custos com o tratamento e destinação dos mesmos. O resíduo do fruto do cafeeiro, por ser rico em macro e micro nutrientes como açúcares, proteínas, Ca, Mg, P, N e K, torna-se um meio indutor para o crescimento e cultivo de fungos. Os fungos
Publicado em: 2008
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21. Pectinases: aplicações industriais e perspectivas
Pectic substances are structural heteropolysaccharides that occur in the middle lamellae and primary cell walls of higher plants. They are composed of partially methyl-esterified galacturonic acid residues linked by alpha-1, 4-glycosidic bonds. Pectinolytic enzymes are complex enzymes that degrade pectic polymers and there are several classes of enzymes, whi
Química Nova. Publicado em: 2007-04
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22. CaracterizaÃÃo e modificaÃÃo quÃmica de resÃduos sÃlidos do beneficiamento do cafà para produÃÃo de novos materiais. / Characterization and chemical modification of coffee processing solid residues for production of new materials.
Atualmente, existe um grande interesse na utilizaÃÃo de materiais lignocelulÃsicos, principalmente resÃduos agroindustriais. Estes materiais apresentam vantagens, como baixo custo, serem renovÃveis e degradÃveis. No entanto, devido a sua natureza hidrofÃlica, essa utilizaÃÃo tem sido restrita, visto que a hidrofilicidade proporciona a esses materiai
Publicado em: 2007
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23. Performance of Nellore cattle fed individualy or in group, nutrient requirements and proteic evaluation of feeds for ruminants / Desempenho de bovinos Nelore alimentados individualmente ou em grupo, exigências nutricionais e avaliação protéica de alimentos para ruminantes
The present work was developed based on four experiments. The two firsts were conducted aiming to evaluate the fecal dry matter production using total fecal collection or estimated by chromic oxide (Cr2O3), titanium dioxide (TiO2), isolated, purified and enriched lignin of Eucalyptus grandis (LIPE), indigestible neutral and acid detergent fiber (NDFi and ADF
Publicado em: 2007
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24. Proportion of organic material in standard substrate in coffee seedlings production in tubetts / Proporção de material orgânico no substrato artificial na produção de mudas de cafeeiro em tubetes
Utilization of organic materials might contribute to reduce costs of production and enhance vegetative development and quality of coffee seedlings. With the objective of evaluating the effects of the utilization of different organic materials on the standard substrate used for coffee seedlings production, (Coffe Arabic L.), an experiment was conducted at the
Publicado em: 2006