Avaliação da qualidade de alimentos biofortificados produzidos em sistemas agroecológicos do trópico úmido

Pós-graduação em Engenharia e Ciência de Alimentos - IBILCE

Duração da eclosão e temperatura de incubação sobre a qualidade dos pintos, seu desempenho e qualidade de carne

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

Somatotropina bovina (rbST) recombinante sobre as características físico-químicas da carne de cabritos

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Lâminas de fertirrigação e substratos na produção e qualidade de gérbera de vaso

Fertigation management of gerbera crop has been many times performed inadequately, and it has been worsened when mixtures of substrates with different physical and chemical characteristics are used. Aiming at evaluating the production and quality of potted gerbera in two substrates and different levels of fertigation, the experiment was conducted in the greenhouse of the DRN/Soil Science, FCA/UNESP, Botucatu (SP). A 5 x 2 factorial randomized block design (5 levels of fertigation and 2 substrates) was adopted with 4 replications. Levels of fertigation corresponded to maintenance of 100% available water (AW) in the substrate; 100 to 80% of AW; 100 to 60% of AW; 100 to 40% of AW and 100 to 20% of AW. The substrates were as follows: 1- mixed coconut fiber (50% pellet coconut fiber and 50% coir fiber), 2- 40% red soil, 40% decomposed pine bark, 10% composition 1 (40% decomposed pine bark, 30% vermiculite and 30% carbonized rice husk) and 10% composition 2 (75% decomposed pine bark and 25% needles of pine). Plants at the marketing stage were evaluated according to the number of leaves; diameter of leaf surface; leaf area; fresh and dry phytomass of leaves, inflorescence and total plant; inflorescence number and diameter, stem diameter, plant height, leaf area rate and electrical conductivity of the substrate solution. Plants of better quality were obtained when they were maintained in levels of 100% available water and the mixed coconut fiber was used as substrate.

Relação K:Ca:Mg na solução nutritiva para produção de minitomate cultivado em substrato

The study was conducted to evaluate six K:Ca:Mg ratios for production of two cultivars of mini tomato grown in substrate, in a greenhouse, during two growing seasons. The experimental design was randomized blocks with four replications and twelve treatments using both cultivars of mini tomato (Sweet Million and Sweet Grape) and six K:Ca:Mg ratios (4:3:1, 6:3:1, 6:4.5:1, 2.7:3:1, 2.7:2:1, 4:2:1) in nutrient solutions. In both experiments, nutrient solutions with the highest concentrations of Mg, (75 mg L-1) and the lowest concentrations of Ca, (150 mg L-1) led to the highest concentrations of those nutrients in plant dry matter. The Sweet Million cultivar had higher yield (1.69 kg plant-1 and 1.52 kg plant-1), number of fruits per plant (227 and 236), and water use efficiency (29.1 kg m-3 and 25.3 kg m-3). However, the Sweet Grape cultivar had fruits of higher mean weight (9.0 g and 8.8 g) and macronutrient content in the leaves. In both crop cycles, the different K:Ca:Mg ratios affected only the macronutrient contents of the mini tomato plants grown in substrate, with no effect on yield and water use efficiency. The first crop cycle showed the highest N, K, Ca and S content.

Qualidade da carne de bovinos recriados em pastagens associada a suplementação e terminação a pasto ou no confinamento

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Processamento térmico e estádio fenológico na atividade antioxidante do jambu

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Investigação dos compostos biativos em tomates (Lycopersicon esculentum L.) após o processamento térmico

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Obtenção e caracterização de nanocelulose a partir de fibras de Chorisia speciosa St. Hil

Natural fibers have been highlighted as a renewable material that can replace materials from oil and its derivatives. In this context, Brazil becomes the perfect setting because of the diversity of fibers found in its territory, such as sugarcane, sisal, rice, cotton, coconut, pineapple, among others. The paineiras (Chorisia speciosa St. Hil) are typically Brazilian trees, which produce paina as fruit. These fruits are still little studied as a source of lignocellulose by research groups. This project aimed obtaining and characterization of cellulose nanofibers from the fibers from the paina fibers. Obtaining nanocellulose is practically made through simplified chemical processes. First, was performed out pre-treatments to removal of waxes, lignin and hemicellulose. The first stage of pre-treatment was carried out by alkaline aqueous solution of sodium hydroxide (NaOH) at 5wt%, where the fibers were under constant agitation for 1h at 70°C. Through alkali treatment it was possible to remove most of the lignin, hemicellulose, waxes and extractives. After the alkaline treatment was done bleaching with an aqueous solution of sodium hydroxide (NaOH) to 4wt% and hydrogen peroxide (H2O2) to 24wt% 1:1 during 2h with constant stirring to 50 °C. Through bleaching was possibe to remove residual lignin, and got cellulose with 72% of crystallinity. Nanocellulose of paina fibers was extracted using different conditions of acid hydrolysis with sulfuric acid (H2SO4) to 50wt%. After acid hydrolysis, the suspensions were centrifuged during 30 min and dialyzed in water to remove excess acid until neutral pH (6-7). Then the suspensions were passed by ultrasonification in an ultrasound 20 kHz during 1h in an ice bath. Untreated, alkalinized and bleached fibers as well as cellulose nanoparticles were characterized by the techniques of thermogravimetry ... (Complete abastract click electronic access below)

Investigação dos compostos biativos em tomates (Lycopersicon esculentum L.) após o processamento térmico

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Obtenção e caracterização de nanocelulose a partir de fibras de Chorisia speciosa St. Hil

Natural fibers have been highlighted as a renewable material that can replace materials from oil and its derivatives. In this context, Brazil becomes the perfect setting because of the diversity of fibers found in its territory, such as sugarcane, sisal, rice, cotton, coconut, pineapple, among others. The paineiras (Chorisia speciosa St. Hil) are typically Brazilian trees, which produce paina as fruit. These fruits are still little studied as a source of lignocellulose by research groups. This project aimed obtaining and characterization of cellulose nanofibers from the fibers from the paina fibers. Obtaining nanocellulose is practically made through simplified chemical processes. First, was performed out pre-treatments to removal of waxes, lignin and hemicellulose. The first stage of pre-treatment was carried out by alkaline aqueous solution of sodium hydroxide (NaOH) at 5wt%, where the fibers were under constant agitation for 1h at 70°C. Through alkali treatment it was possible to remove most of the lignin, hemicellulose, waxes and extractives. After the alkaline treatment was done bleaching with an aqueous solution of sodium hydroxide (NaOH) to 4wt% and hydrogen peroxide (H2O2) to 24wt% 1:1 during 2h with constant stirring to 50 °C. Through bleaching was possibe to remove residual lignin, and got cellulose with 72% of crystallinity. Nanocellulose of paina fibers was extracted using different conditions of acid hydrolysis with sulfuric acid (H2SO4) to 50wt%. After acid hydrolysis, the suspensions were centrifuged during 30 min and dialyzed in water to remove excess acid until neutral pH (6-7). Then the suspensions were passed by ultrasonification in an ultrasound 20 kHz during 1h in an ice bath. Untreated, alkalinized and bleached fibers as well as cellulose nanoparticles were characterized by the techniques of thermogravimetry ... (Complete abastract click electronic access below)

ANATOMY OF NERITINA ZEBRA FROM GUYANA AND BRAZIL (MOLLUSCA: GASTROPODA: NERITIDAE)

Neritina zebra is a common brackish water gastropod living on muddy bottoms with poorly known morphological characters. The morphology, including the variety of colour and pattern of shells, and the anatomy are described. We mainly analyzed the animals collected in the estuary of the Ceara river, Ceara, Brazil, from "Parque Estadual do rio Coco", and specimens from other places deposited in institutional collections, from French Guyana (topotypes) to Sao Paulo. A complete anatomical description is performed, including illustration and discussion ninth concerned to systematics. Amongst the more important anatomical data are: heart diotocardian; kidneys solid; anterior esophagus with pair of ventral esophageal pouches; odontophore with 4 cartilages and 2 horizontal muscles (m6, m6a); males with penis dorsal-right to snout, bearing a terminal papilla; pallial oviduct triaulic, possessing 3 pallial apertures.

Study of adsorption isotherms of green coconut pulp

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.

¿Qué he hecho yo para merecer esto?

Seis videos a color. I Jornadas de Enfermería celebradas en Lanzarote entre los días 8 al 10 de octubre de 1992, bajo el título de ¿Qué he hecho yo para merecer esto?, con sedes en el Auditorio de los Jameos del agua y en Sala de Audiencia del Fondeadero del Puerto del Carmen ?Tías, se presentaron distintas ponencias y comunicaciones a las mismas, con títulos tan sugerentes como: Dos enfermeras y un programa, ¿Me dejas que te coma el coco?, Yo soy esa, Y yo con estos pelos, ¿Quién, cómo, cuándo y dónde?, La bien pagá, Suave que me estás matando, Ha nacido una estrella, Nena, tu vales mucho, Lo que era, lo que soy, que seré, Quiéreme aunque te duela, Si tú me dices ven, Cuentos inmorales entre otras. Organizadas por la Dirección de Enfermería Hospital General de Lanzarote, la Escuela Universitaria de Enfermería Lanzarote de la Universidad de Las Palmas de Gran Canaria y el Ilustre Colegio Oficial de Enfermería de Las Palmas. En el acto de apertura se contó con la Coral San Ginés y se cerraron con una mesa redonda. Es una grabación de Producciones Nandi.

Voluntaria contra el aleteo de tiburones y la 13ª milla

[ES]Tras una presentación sumaria sobre el estado en que se encuentran las más de 500 especies de tiburones conocidas, se habla de la isla de Coco ubicada 342 millas (550 kilómetros) frente a las costas de Costa Rica en el Océano Pacífico, alrededor de 36 horas en barco desde el continente, es una isla deshabitada que cuenta con tan solo 12 millas (20 km) de área de protección, donde supuestamente es ilegal pescar y está prohibido navegar sin permiso. La isla cuenta con un plan de manejo y protección por parte del PNIC ( Parque Nacional Isla del Coco) donde Guardaparques y voluntarios intentan proteger esa zona con los medios que cuentan cedidos por el gobierno, ayudas internacionales o de algunas Ong’s. Es conocida por la abundancia de tiburones que viven en sus aguas, incluyendo tiburones de aleta blanca, enormes tiburones ballena y tiburones martillo. Por falta de recursos la pesca ilegal dentro y en las cercanías del área marina protegida de la isla del Coco, ( 12 millas ) está comprometiendo seriamente la fauna y los ecosistemas marinos. La pesca ilegal se manifiesta de diversas formas, sobre todo la extracción de tiburones y otras especies con técnicas de pesca, no selectivas y destructivas, como es con el uso de palangre o long lines. Los Tiburones Martillo están en la lista de especies amenazadas a nivel mundial, y son a menudo blanco de los pescadores por sus aletas, que son muy apreciadas para la sopa de aleta de tiburón. Tanto los tiburones martillo y tortugas laúd mueren cuando son capturados accidentalmente en estas operaciones de pesca comercial. Los recursos en el parque nacional son escasos, durante mi voluntariado contábamos únicamente de una embarcación preparada para los patrullajes, estos duraban entre 8-14 horas dependiendo de otras tareas a realizar en el parque y de la disponibilidad de Guardaparques licenciados para patrullar el barco ( dependiendo del mes ingresan mas o menos capacitados para esta actividad) por lo que me di cuenta de que su protección no era eficaz, ya que la isla cuenta diariamente con un promedio de 15-30 barcos ilegales sobretodo en la Zona nord-este, estos lanzan el palangre a pocas millas de la isla ( entre la milla 4-8 ) lineas que pueden llegar a medir entre 30/40 millas, y esperar en la milla 13 pare recoger ” legalmente” todo lo que se haya quedado atrapado en sus anzuelos. Las tareas de los Guardaparques y voluntarios es evitar que estas embarcaciones entren en esa zona de protección, sancionar a los que estén actuando ilegalmente, además de retirar todas las lineas encontradas a la deriva así como intentar salvar todas las especies atrapadas en ellas. Para colmo, para poder sancionar a los infractores los Guardaparques deben encontrar la embarcación con la línea de pesca en la mano, y subiendo la especie, para poder ser procesado por pesca ilegal.