Agricultural Waste
Mostrando 25-36 de 89 artigos, teses e dissertações.
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25. Agronomic parameters assessment in hydroponic tomato crop
In this study we present the results of a comparative analysis of nutrient solution (NS) recycling and non-recycling treatments in hydroponic tomato crop. The established aims are to evaluate water consumption, pH and conductivity variation along the productive cycle in both treatments, to establish the differences in fruit yield and to assess the viability
Hortic. Bras.. Publicado em: 2014-12
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26. Chemical composition, fatty acid profile and bioactive compounds of guava seeds (Psidium guajava L.)
This study aimed to characterize the chemical composition, determine the fatty acid profile, and quantify the bioactive compounds present in guava seed powder (Psidium guajava L.). The powder resulted from seeds obtained from guava pulp processing. The agro-industrial seeds from red guava cv. paluma were used, and they were donated by a frozen pulp fruit man
Food Sci. Technol. Publicado em: 09/09/2014
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27. Production of bioethanol using agricultural waste: banana pseudo stem
India is amongst the largest banana (Musa acuminata) producing countries and thus banana pseudo stem is commonly available agricultural waste to be used as lignocellulosic substrate. Present study focuses on exploitation of banana pseudo stem as a source for bioethanol production from the sugars released due to different chemical and biological pretreatments
Braz. J. Microbiol.. Publicado em: 2014-09
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28. Application of fourier transform infrared spectroscopy, chemical and chemometrics analyses to the characterization of agro-industrial waste
Agroindustrial waste in general presents significant levels of nutrients and organic matter and has therefore been frequently put to agricultural use. In this context, the objective of this study was to determine the chemical composition, nitrogen, phosphorus, potassium, calcium, magnesium and carbon content, as well as the qualitative characteristics throug
Quím. Nova. Publicado em: 2014
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29. Adsorption of remazol brilliant blue on an orange peel adsorbent
A novel orange peel adsorbent developed from an agricultural waste material was characterised and utilised for the removal of Remazol Brilliant Blue from an artificial textile-dye effluent. The adsorption thermodynamics of this dye-adsorbent pair was studied in a series of equilibrium experiments. The time to reach equilibrium was 15 h for the concentration
Braz. J. Chem. Eng.. Publicado em: 2013-09
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30. Química e sustentabilidade: novas fronteiras em biocombustíveis
This contribution discusses the state of the art and the challenges in producing biofuels, as well as the need to develop chemical conversion processes of CO2 in Brazil. Biofuels are sustainable alternatives to fossil fuels for providing energy, whilst minimizing the effects of CO2 emissions into the atmosphere. Ethanol from fermentation of simple sugars and
Quím. Nova. Publicado em: 2013
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31. Efeitos da aplicaÃÃo de resÃduos industriais nas propriedades quÃmicas e biolÃgicas do solo / EFFECTS THE APPLICATION OF INDUSTRIAL WASTE IN CHEMICAL AND BIOLOGICAL PROPERTIES OF SOIL
A disposiÃÃo dos resÃduos industriais à um dos problemas de maior importÃncia no mundo e, na busca de alternativas sustentÃveis tÃm-se avaliado a possibilidade de aplicaÃÃo destes na agricultura. Para avaliar a potencialidade do uso de resÃduo industrial inorgÃnico e orgÃnico em solos agrÃcolas foram realizados dois estudos. O primeiro para aval
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/08/2012
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32. As Novas ruralidades e as recentes alternativas da agricultura familiar no município de Itapiranga (SC)
The new rurality is creating job opportunities and income in family farming in the municipality of Itapiranga/SC, which must be analyzed. Have been numerous initiatives in this direction, such as recreation sites, agro-ecological gardening, farming, forestry, fish and small agro-industries derived from cane sugar (molasses, brown sugar and "Schmier"), rural
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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33. Índice de perigo para subsidiar a aplicação de lodo de esgoto em solo agrícola / Hazard index for the decision-making process of sludge agricultural use
A ampliação dos sistemas de tratamento de esgoto sanitário implica diretamente no aumento da geração de lodos de esgoto, que precisam ser adequadamente dispostos. Devido aos benefícios agronômicos, a incorporação de lodo de esgoto em solo agrícola tem sido, em diversos países, a forma mais sustentável para aproveitamento deste resíduo. A Resolu�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/08/2011
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34. Identificação molecular e produção de pectinases por isolados de Cladosporium cladosporioides (Fres.) de Vries / Molecular identification and production pectinase by isolates Cladosporium cladosporioides (Fres.) de Vries
The enzymes market has grown considerably in recent years. These enzymes play an important role in various industries, mainly in the food industry. Special attention has been given to the search for alternatives that reduce production costs and developing processes that will not harm the environment. Disposal of waste is a major problem faced by many agribus
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/08/2011
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35. Ocorrência de arsênio, cádmio e chumbo em tecidos de aves, suínos, bovinos de corte e equinos no Brasil
Among the major inorganic contaminants present in animal products, cadmium, arsenic and lead stand out. The aim of this study was to investigate the presence of residues of cadmium, arsenic and lead in samples of liver, kidney and muscle of cattle, poultry, swine and horses. It was used 3046 samples from 20 Brazilian States. The samples were analyzed at the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/07/2011
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36. A expansão da cana-de-açúcar na mesorregião do Triângulo Mineiro/Alto Paranaíba (MG): o discurso da modernidade e as des-(re)-territorializações nos Cerrados do município de Ibiá
In this study, we analyzed the installation and expansion of sugar cane plantations in the middle region of Triângulo Mineiro/Alto Paranaíba in Minas Gerais state in Brazil. We pay special attention to a business located in Ibiá county. We analyzed the arrival of bank stock and the restructuring of the sugar cane land base in new territories in the city a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/04/2011