540 resultados para Multiplicação de bactéria


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Knowledge of the amount of nutrients accumulated in the plant provides important information that can assist in the fertilization of crops program. To study the salt effect caused by high amounts of fertilizers applied by fertigation, an experiment was conducted in a greenhouse at the FCA/UNESP, Botucatu, SP. The experiment lasted 90 days (01/11/11 to 29/01/12) constituting five levels of electrical conductivity (1.0, 3.0, 6.0, 9.0, and 12.0 dS m-1), fertigation two management (M1: traditional management, M2: management by controlling the ionic concentration of the soil solution) and two varieties of beets (Early Wonder and Itapuã) blocks with 4 repeats forming a 5x2x2 factorial. From the dry weight of shoots and roots was determined the levels of micronutrients (B, Cu, Fe, Mn, Zn mg kg-1), and by multiplying the dry matter accumulation was determined in these plant . The accumulation of micronutrients in different parts of the plant followed the order: Fe> Mn> Zn> B> Cu for the different management fertigation studied. The Cu, Fe, Mn element present responses to increased soil salinity leading to greater absorption.

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Avocado (Persea americana Mill.) is a product grown in tropical and subtropical regions and from it we can extract products like guacamole which is highly consumed in the Mexican culinary. The most used varieties for guacamole are the Hass and Fuerte. The present research had as objective to evaluate the microbiological and sensorial quality of the guacamole conserved through cold with no addition of additives. The microbiological analyses have shown the product reached satisfactory results as for the analysis of total and thermoenduring coliform < 3,0 UFC/g, Salmonella absent in 25g, Staphylococcus aureus and Bacillus cereus < 100 UFC/g, presenting values within the patterns set by RDC of Anvisa 12 of January 2nd 2001. The analyses of mesophile bacteria and the counting of mold and yeast reached values between 102 and 104 UFC/g and the psychrotropic bactéria presented values < 100 UFC/g. The sensorial anlyses have shown that the polyethylene package isn't effective in keeping the analysed sensorial parameters. Although the polyethylene and nylon packages had better results, however they didn't differentiate themselves so as the vacuum use.

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Matemática Universitária - IGCE

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Pós-graduação em Estudos Linguísticos - IBILCE

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Pós-graduação em Medicina Veterinária - FMVZ 33004064022P3