241 resultados para fécula de mandioca
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Pós-graduação em Agronomia (Energia na Agricultura) - FCA
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Pós-graduação em Zootecnia - FMVZ
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Neste artigo estuda-se o vocabulário utilizado pelos lavradores, referente à cultura da mandioca. Baseia-se numa pesquisa dialetològica, realizada no Município de Cândido Mota, São Paulo, um dos maiores produtores de mandioca do Brasil. O vocabulário refere-se ao preparo da terra e da rama, ao plantio e à colheita.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Zootecnia - FMVZ
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Constituído por processo para a produção de granulados, colocação, em misturador (1), de farelo úmido de mandioca (2) e as substâncias secas a serem misturadas (3), tais como fármacos, drogas de origem natural, aromas e essências, nutrientes e aditivos, passando a massa homogeneizada resultante por equipamentos granuladores ou em outros equipamentos apropriados (4), tais como extrusores e esferonizadores, seguido por fase de secagem adequada (5), sendo, então os grânulos calibrados em equipamento apropriado (6) para se apresentarem uniformes e, para a produção de compactos, os grânulos são, então, compactados em equipamento apropriado (7), cujo desenvolvimento visa aumentar o aproveitamento do cultivo da mandioca para utilização pela indústria farmacêutica na produção de medicamentos, na indústria alimentícia como fonte de energia e de fibras e na fabricação de ração para animais de laboratório.
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The objective of this work was to evaluate the effect of sun and shade drying of the aerial part of cassava on the chemical composition and apparent digestibility coefficient (ADC) of nutrients, energy, and aminoacids for Nile tilapia (Oreochromis niloticus). There was no difference between the drying methods for chemical composition. The ADC of crude protein showed higher digestibility for the shade dried aerial part. Shade drying of the aerial part of cassava allows higher conservation of the protein content and better apparent digestibility of the protein and amino acid fraction for Nile tilapia.
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Pós-graduação em Design - FAAC
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Pós-graduação em Agronomia (Agricultura) - FCA
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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The food industry is continually growing with new products becoming available every year. Extrusion combines a number of unit operations in one energy efficient rapid continuous process and can be used to produce a wide variety of snacks foods. The objective of this study was to evaluate the effect of extrusion temperature, screw speed, and amount of cassava leaf flour mixed with cassava starch on the physical properties of extruded snacks processed using a single screw extruder. A central composite rotational design, including three factors with 20 treatments, was used in the experimental design. Dependent variables included the expansion index, specific volume, color, water absorption index, and water solubility index. Among the parameters examined, the amount of cassava leaf flour and extrusion temperature showed significant effects on extruded snack characteristics. Mixtures containing 10% of cassava leaf flour extruded at 100 degrees C and 255 rpm shows favorable levels of expansion, color, water absorption index, and water solubility index.
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Cassava wastewater, generated during cassava processing, is a highly polluting and toxic waste. This study aimed to assess the relationship of cassava treatment efficiency in two aerobic sequencing batch reactors, cylindrical plastics (31cm height x 9cm diameter), with 2.0 liters capacity and 1.5 liters of work volume, a ratio of diameter and height of the liquid 1:2.5, with a running time of 24 hours and stoppage aeration for 16 hours with average feed of 2,500 and 6,000 mg COD. L -1. COD, pH, SVI and F/M were analyzed. The results obtained in the two reactors showed an average reduction of 94.1% and 76.8% organic content, respectively; pH values showed a rising in the output pH values compared to entry ones; SVI values obtained: 54.1 mL/g, 99.3 mL/g, respectively in a F/M ratio values worked out of 0.4 d-1 and 1,1 d-1 , respectively. The results demonstrated that the process has generated considerable saving in energy consumption compared to traditional continuous systems, was efficient and did not affect the efficiency overly of the reactor.
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The cassava wastewater, generated during the cassava processing, is a pollutant and toxic waste. This study compared the efficiency of the cassava wastewater treatment in three batch aerobic systems with a ru1nning time of 24 hours, and aeration stoppage of 12h with 2,500, 6,000 and 10,000 mg COD L-1 . The systems were evaluated for COD, pH, SVI and F/M. The results showed that the reactor with aeration stoppage for 12 hours, with 2,500 mg COD L-1 , presented the best reduction in a process with considerable energy consumption saving compared to traditional continuous systems.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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This paper analyzed and mapped social networks among cassava farmers in São Paulo, gathered in search of information regarding production and marketing. A descriptive research, using semi-structured questionnaires, in Tupa and Assis regions, was conducted. UCINET software assisted the analysis of interactions within networks. The results indicate that Tupa network is diffuse and there is little interaction with technology transfer institutions. In Assis, the network is cohesive with greater technological diffusion.