989 resultados para Laranja - Doenças e pragas


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Pós-graduação em Química - IQ

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Pós-graduação em Enfermagem (mestrado profissional) - FMB

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Pós-graduação em Biometria - IBB

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The present invention relates to phthalimide derivatives of non-steroidal and/or TNF-+- modulating anti-inflammatory compounds as well as the process of obtaining the so-called derivatives, pharmaceutical compositions containing such derivatives and their uses, including use in the treatment of inflammatory diseases, especially those related to chronic inflammatory processes, such as rheumatoid arthritis and intestinal inflammatory diseases (for instance, Chron's disease) and the use of the referred to pharmaceutical compositions as antipyretic, analgesic and platelet antiaggregating medications.

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A presente invenção se refere ao processo de obtenção de compostos derivados de anti-inflamatórios esteróides (AIEs) e de talidomida com propriedades anti-inflamatórias, analgésicas e imunossupressoras úteis no tratamento de processos inflamatórios. A presente invenção se refere também as composições farmacêuticas contendo tais compostos e seus usos na fabricação de medicamentos para o tratamento de doenças inflamatórias principalmente aquelas relacionadas a processos inflamatórios crônicos.

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Processo de obtenção de uma bebida fermento-destilada a partir do licor de laranja dentre os subprodutos derivados do processamento do suco de laranja concentrado, o chamado licor de laranja, produto da extração final dos resíduos industriais da fruta, em função da grande quantidade de sólidos solúveis que contém, tem sido concentrado e reincorporado ao resíduo seco da polpa utilizada na elaboração da ração cítrica. Considerando-se, portanto o grande volume de produção, e principalmente a economia que poderia representar o uso do licor de laranja como matéria-prima de uma nova bebida destilada, foi objetivo deste trabalho tentar obter,com base no processo de obtenção da cachaça, uma aguardente do licor de laranja, com características físicas químicas e sensoriais compatíveis com esse tipo de bebida.

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A presente invenção se refere ao uso de compostos derivados ftalimídicos e/ou sulfonamídicos com propriedades doadoras de óxido nítrico, os quais apresentam importantes atividades no aumento da expressão gênica de gama globina e atividades antiinflamatórias e analgésicas, potenciais ao tratamento de doenças hematológicas em que há a necessidade de diminuição dos níveis do fator TNF-<244> e a necessidade de uma fonte exógena de óxido nítrico. Mais particularmente, a presente invenção descreve o uso de tais derivados ftalimídicos e/ou sulfonamídicos para o tratamento de anemia falciforme. A invenção também apresenta como característica inovadora, a descrição de novos derivados ftalimídicos funcionalizados, desenhados a partir dos protótipos talidomida e hidroxiuréia e planejados racionalmente através da estratégia de hibridação molecular para o tratamento das doenças citadas. A invenção apresenta ainda um novo método de obtenção de um derivado sulfonamídico específico que pode ser utilizado na preparação de um medicamento para tratamento de doenças em que há a necessidade de diminuição dos níveis do fator TNF-<244> e a necessidade de uma fonte exógena de óxido nítrico.

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Preparation and use of phthalimide and/or sulphonamide derivatives with nitric oxide donor properties, having activities in increasing gamma-globin gene expression and anti-inflammatory and analgesic activities, effective in the treatment of hematologic diseases which require reducing the TNF-[alpha] levels and an exogenous source of nitric oxide, such as sickle-cell disease. The functionalized phthalimide derivatives are designed from the prototypes thalidomide and hydroxyurea.

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Utilização de fermento de descarte da indústria cervejeira na produção da aguardente de liquor de laranja. A indústria de suco de laranja produz ao final do processo um subproduto denominado "liquor" de laranja, que é gerado na operação de prensagem do bagaço, e após concentrado, é adicionado ao farelo de polpa cítrica peletizado (CPP) para a elaboração de ração animal. A indústria brasileira de cerveja, por sua vez, tem descartado anualmente cerca de 160 milhões de litros de fermento, ainda com boa viabilidade (com um percentual de células mortas inferior a 5%). A cerveja mais difundida no mercado brasileiro é a do tipo "larger", produzida por cepas S. uvarum, que são caracterizadas pela baixa fermentação e normalmente utilizadas no máximo de 4 a 10 gerações.

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Among the edaphic factors, those related to acidity are the ones that affect productivity, especially in tropical regions. For culture the Annonaceae, no research results that indicate the proper base saturation, nor the determination of doses, times, application methods and sources of nutrients for orchards Annonaceae in training and production in order to promote sustainability and higher yields. Given the importance and potential of commercial exploitation of Annonaceae in Brazil and, considering the limited available scientific information on liming, fertilization and nutrition of fruit plants of this family, some research has to be carried out urgently due to the effects of nutrients on productivity, fruit quality, post-harvest, tolerance to pests and diseases, etc.

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The Tahiti lime appears very susceptible to attack by post-harvest diseases, primarily by the fungi Penicillium and Phomopsis, and also because of its high sensitivity to storage at low temperatures. In order to reduce such damage, the present study aimed to verify the efficiency of heat treatment and disinfection of pathogens in the prevention of post-harvest chilling injury of this cultivar and to compare this treatment with other products using the conventional fungicides. The heat treatments were studied with hot-water temperatures ranging between 48 and 56° C. Water at room temperature was used as a control treatment. After treatment, the fruits were kept under cold temperature at 10° C and RH 90% for about 45 days. For comparison, three other treatments were carried out simultaneously, one using imazalil, one with baking soda, and a third with sodium carbonate, these three products being applied by baths in cold water. Two groups of fruit were evaluated, one treated by immersion considering pathogens coming from the field and another by inoculation with spores of the previously isolated pathogens. For the evaluation of physical and chemical parameters of fruits, determinations were made of the skin color, texture, weight loss, size, juice yield, soluble solids, total acidity and vitamin C content. The determination of the sensitivity of the fruit to cold was made by their exposure at temperatures inducing cold damage. The design was a randomized block design with nine treatments, analyzed by the Statgraphics statistical package. Heat treatments, especially at 52° C, were shown to be more promising in the control of pathogenic fungi and cold damage, surpassing the conventional fungicides. No changes were found in the intrinsic and extrinsic parameters in relation to the application of the different treatments.

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The purpose of this study envisaged the quantification of skin and respiratory exposures occasioned by work conditions during pesticide spraying of citrus fruits using hand gun sprayers; the evaluation of the efficiency of individual and group protection measures for the workers; the determination of workers' most exposed body regions; and the classification of work conditions, with and without the tested work-safety protection measures as recommended for the registered pesticides used to control the main pests and diseases that attack these types of trees and fruits. The AZR protection equipment proved to be the most efficient for the tractor driver, when spraying using pistol sprayers. The two sets of individual protection equipment that were checked also proved to be efficient. The most exposed regions of the tractor driver's body were the thighs, the front of the legs, the feet and hands. The most exposed regions of the individual sprayer working on foot were the hands and feet.

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The objectives of this study were: a) to quantify dermal and respiratory exposure resulting from work conditions in the application of pesticides on citrus crops using a air-assisted sprayer and by preparing the spray in a tank with a capacity of2.000 L; b) to evaluate the measures of individual protection for these workers; c) to determine the areas of the worker's body most exposed; and d) to classify the work conditions with and without the protective measures tested, with regard to the occupational safety of the recommendations for the pesticides used in controlling the main pests and diseases of this crop. It was shown that for the tractor driver and sprayer operator applyng pesticides on citrus trees, the most efficient protective measures were the AZR ensemble and the Real cabin. The AZR ensemble was effective in controlling exposure of the spray preparer, because it was sufficient to turn work conditions from unsafe to safe. The area of the body most exposed under the two work conditions studied was the hands of the workers.

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The chemical control of the causal agent of citrus black spot (CBS) has been highlighted for the excessive required number of sprayings, considerably increasing citrus production costs. Improvements in the spray efficiency and reductions in the quantity of phytosanitary products have already been searched, but the results of that practice are not consistent yet for its use at commercial scale. Thus, the aim of the present study was to evaluate the interference of reduced spray volumes in black spot control in citrus fruits. The experiment was carried out in commercial citrus orchard with 16-year-old plants of 'Valencia' variety, during 2007 agricultural season. Treatments consisted of three spray volumes: 3.5; 4.5 and 8.5 liters.plant-1, applied with Arbus 2000/Export airblast sprayer with special manifold of hydraulic nozzles, using fungicides and periods recommended for the disease control, totaling four sprayings plus a control treatment (without spray). The disease incidence and severity were evaluated by visual diagrammatic scale of notes in two different periods (preharvest and harvest), at three plant heights (low, middle and top) and three horizontal sections (entrance, frontal and exit) in two sides of the plant. The fallen fruits were counted every fifteen days, for previously selected plants, from the beginning of maturation to harvest, and the production was quantified (kg.plant-1). The disease incidence and severity were significantly lower when sprayings were done with 8.5 liters.plant-1 in the first evaluation period (pre-harvest), but in the harvest period there were not differences between the same parameters when 4.5 or 8.5 liters.plant-1 were sprayed. None of those treatments reduced the disease on the top section of plants, compared to control. The plant sections with fruits more exposed to sun rays, top and right side of the plant, demonstrated higher disease incidence and severity. The volume reduction from 8.5 to 4.5 liters.plant-1 can be adopted for citrus orchards without damaging the CBS control level.