999 resultados para consumo in natura


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Pós-graduação em Engenharia e Ciência de Alimentos - 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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Pós-graduação em Ciências Biológicas (Botânica) - IBB

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A mandioca é cultivada como "mandioca mansa" para consumo in natura e "mandioca para indústria" como fonte de amidos e farinhas. Raças locais foram utilizadas para descoberta de "mutações espontâneas" e desenvolvimento de abordagem evolutiva e de melhoramento para estudos de função gênica. Recursos de Genômica e Proteômica foram obtidos. Análises de expressão gênica por blot de RNA e microarranjos foram desenvolvidos para identificação de expressão diferencial. "Mandioca açucarada" foi identificada, sendo relacionada com falta de expressão do gene da BEI e de uma mutação "nonsence" na sequência do gene GBSSI causando a formação do amido serose. "Mandioca avermelhada" apresentou falta de expressão do gene CasLYB, e a "amarela" uma regulação de repressão do gene CasHYb. Análise Proteômica do complexo carotenóide-proteína, juntamente com a análise de expressão de gene da CAP4, revelaram uma dupla fita de cDNA associada ao elevado acúmulo de carotenóide. Sequenciamento do gene da GBSSI identificou 22 haplótipos e grande diversidade de nucleotídios. Populações segregantes de cruzamentos de fenótipos bioquímicos diferenciados com cultivares elites dos Cerrados foram obtidas.

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Pós-graduação em Agronomia (Produção Vegetal) - FCAV

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Annonaceae is an important family of plants that constitutes the Brazilian flora. Anona species produce fruits for fresh consumption, medicinal use and other purposes. The aim of this study is to present information of literature about vegetative propagation by cutting of some Annonaceae species with potential for consumption and as rootstock. As conclusion, the literature presents a range of rooting results, even about the same species. The rooting success depends on the species, variety, stock plant, season, plant growth regulators, rooting environment and juvenility. Some species present rooting potential, but there are lack of literature about plant management and orchard installation. The use of plant growth regulators improves the rooting of the most species with potential to propagate by cuttings.

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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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O presente trabalho teve como objetivo avaliar dois sistemas de tutoramento e condução de plantas na produtividade e seus componentes em híbridos de tomateiro dos segmentos Salada Longa Vida e Santa Cruz de crescimento indeterminado, visando ao consumo in natura. Adotou-se o delineamento em blocos ao acaso com os tratamentos em esquema fatorial 5x2, quatro repetições, sendo avaliados cinco híbridos comerciais, três pertencentes ao grupo Salada Longa Vida ('Alambra', 'Paron' e 'Forty') e dois do grupo Santa Cruz ('Débora Pto' e 'Ellus'), em dois sistemas de condução de plantas (bambu e fitilho). O experimento foi conduzido em condições de campo, em Itatiba (SP), de julho de 2007 a janeiro de 2008. Foram consideradas todas as plantas de cada parcela e avaliaram-se a produtividade total, produtividade comercial, produção por planta, massa média de frutos, número total de frutos, número de frutos comercializáveis, número de frutos das classes '3A', '2A' e '1A', número de frutos manchado e com lóculo aberto. Não houve interação entre cultivar e sistema de condução de planta para maioria das características avaliadas, exceto número total de frutos, número de frutos comercializáveis e número de frutos da classe '2A'. O sistema de condução de plantas com uma haste tutorada com fitilho proporcionou incremento na massa média de frutos e número de frutos da classe '3A', e decréscimo do número de frutos da classe '1A', sem reduzir a produtividade total e comercial quando comparado ao método de condução tradicional no bambu com duas hastes por planta.

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Variedades ou híbridos de tomateiro utilizados para produção de molhos e ketchups costumam ter hábito determinado, enquanto a maioria dos genótipos utilizados na produção para mesa (consumo in natura) possuem hábito indeterminado. Além de influenciar no manejo da cultura, o hábito de crescimento pode alterar parâmetros de produtividade, como o teor de sólidos solúveis totais (SST) nos frutos. O hábito de crescimento é controlado principalmente pelo gene SELF-PRUNING (SP), que é um dos componentes de uma pequena família gênica da qual faz parte também o gene SINGLE FLOWER TRUSS (SFT), atualmente considerado um dos componentes do tão buscado "florígeno". O entendimento da função bioquímica e o efeito fisiológico de tais genes em interação com o ambiente e outros genes (epistasia) possibilita a manipulação de parâmetros como precocidade e SST. Além disso, fornece subsídios para compreender a base genética do crescimento semideterminado, que combina vantagens do hábito determinado e indeterminado, podendo ser usado pelos melhoristas de plantas para o desenvolvimento de novas cultivares.

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Brazil is considered one of the largest producers and consumers of tropical fruits. Green coconut (Cocos nucifera L.) stands out not only for its production and consumption, but also for the high amount of waste produced by coconut water industry and in natura consumption. Therefore, there is a need for utilization of this by-product. This study aims to study the adsorption isotherms of green coconut pulp and determine its isosteric heat of sorption. The adsorption isotherms at temperatures of 30, 40, 50, 60, and 70 °C were analyzed, and they exhibit type III behavior, typical of sugar rich foods. The experimental results of equilibrium moisture content were correlated by models present in the literature. The Guggenheim, Anderson and De Boer (GAB) model proved particularly good overall agreement with the experimental data. The heat of sorption determined from the adsorption isotherms increased with the decrease in moisture content. The heat of sorption is considered as indicative of intermolecular attractive forces between the sorption sites and water vapor, which is an important factor to predict the shelf life of dried products.

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Actually, Brazil is one of the larger fruit producer worldwide, with most of its production being consumed in nature way or either as juice or pulp. It is important to highlig ht in the fruit productive chain there are a lot lose due mainly to climate reasons, as well as storage, transportation, season, market, etc. It is known that in the pulp and fruit processing industy a yield of 50% (in mass) is usually obtained, with the other part discarded as waste. However, since most this waste has a high nutrient content it can be used to generate added - value products. In this case, drying plays an important role as an alternative process in order to improve these wastes generated by the fruit industry. However, despite the advantage of using this technique in order to improve such wastes, issues as a higher power demand as well as the thermal efficiency limitation should be addressed. Therefore, the control of the main variables in t his drying process is quite important in order to obtain operational conditions to produce a final product with the target specification as well as with a lower power cost. M athematical models can be applied to this process as a tool in order to optimize t he best conditions. The main aim of this work was to evaluate the drying behaviour of a guava industrial pulp waste using a batch system with a convective - tray dryer both experimentally and using mathematical modeling. In the experimental study , the dryin g carried out using a group of trays as well as the power consume were assayed as response to the effects of operational conditions (temperature, drying air flow rate and solid mass). Obtained results allowed observing the most significant variables in the process. On the other hand, the phenomenological mathematical model was validated and allowed to follow the moisture profile as well as the temperature in the solid and gas phases in every tray. Simulation results showed the most favorable procedure to o btain the minimum processing time as well as the lower power demand.

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The jabuticaba fruit tree from classified in the Myrtaceae family and Plinia genre. There are about nine species of this fruit tree, that include as most important, Plinia trunciflora (jabuticaba de cabinho), naturally occurring in southwestern Paraná State, Brazil, P. cauliflora (jabuticaba Paulista or Jabuticaba Açu) and P. jaboticaba (Vell) (jabuticaba sabará), with all the over species producing fruit for the industry or fresh consumption. Nevertheless, there aren‟t commercial orchards with this culture, with highest yield part from extractive. This fact can be combined with lack of technical knowledge for the plants produce in the field. As these species are found in the forest, the first point is whether they can adapt to other light intensity conditions. The aim of this work was to identify the adaptive behavior of jabuticaba fruit seedling and tree when they were put in different light intensities and what this can be considered ideal for the growth, as well as, its influence in the leaves secondary compounds production. Two experiments were conducted, with the first involved with the study of the seedlings and the second with plants in the field. The work was carried out at Universidade Tecnológica Federal do Paraná – Câmpus Dois Vizinhos, Paraná State - Brazil. The experimental design was a completely randomized and a block design with four treatments and four replications of 10 seedlings or two plants per plot, according to nursery or orchard conditions, respectively. The treatments were base according to the light intensity. The treatments used were, 1 - full sun, similar the orchard condition, with 0% shading; 2 - side cover with shade cloth and top with transparent plastic, representing a gap forest condition; 3 - side and top cover with shade cloth, representing stage where the forest canopy is closing, focusing only indirect sunlight; 4 - side and top cover with shade cloth, simulating a closed canopy condition, with PPD (photon flux density) of 10% (90% shading); 5 - side and top cover with shade cloth, simulating a more open canopy condition with PPD 65% (35% shading). The growth and development seedling and plant characteristics were evaluated once by month, as also, during time part in the plants the secondary metabolites leaves, soil activity microbiological and the fresh and dry matter root and shoot and, root length from seedlings. For the growth and development of jabuticaba Açú Paulista seedling recommend to use of side cover with shade cloth and top with transparent plastic, representing a gap forest condition. In orchard, for the growth and development of plants jabuticaba Híbrida tree it was recommended the use of side and top cover with shade cloth of some type. For production of secondary metabolites of leaves, the plant must to be full sunlight condition orchard.