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‣ Análise: indicadores de pesquisa do XX Congresso Brasileiro de Ciência e Tecnologia de Alimentos

Freitas,Renato João Sossela de; Silva,Rui Sérgio dos Santos Ferreira da; Stertz,Sônia Cachoeira; Ida,Elza Iouko; Cançado,Rupérsio Alvares
Fonte: Sociedade Brasileira de Ciência e Tecnologia de Alimentos Publicador: Sociedade Brasileira de Ciência e Tecnologia de Alimentos
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/08/2007 Português
Relevância na Pesquisa
2244.5042%
Em outubro de 2006, a Regional do Paraná sediou em Curitiba o XX Congresso Brasileiro de Ciência e Tecnologia de Alimentos (XX CBCTA) com o tema Alimentos e Agroindústrias Brasileiras no Contexto Internacional. O objetivo deste Congresso foi discutir o desenvolvimento científico e tecnológico e a inovação na indústria de alimentos no cenário nacional e internacional. O programa científico foi abrangente e diversificado, com Conferências, Palestras, Mesas-Redondas, Curso de Atualização, Clínicas Tecnológicas, Visitas Técnicas e Apresentações de Trabalhos Científicos em oito áreas definidas pelo Congresso. Como resultado da realização do XX CBCTA, esta análise visa uma apresentação e discussão dos indicadores da pesquisa da área de Ciência e Tecnologia de Alimentos do País e contribuição ao desenvolvimento científico e tecnológico da área, bem como subsídios para órgãos de fomento para decisão de investimentos na pesquisa e na formação de recursos humanos. No XX CBCTA, foi apresentado um total de 2066 trabalhos científicos de todo o Brasil, com exceção do Estado de Rondônia. Os trabalhos foram registrados no banco de dados e utilizados para esta análise. As inscrições foram escolhidas de acordo com a área da pesquisa de cada trabalho...

‣ Avaliação das condições de produção e qualidade de mel de abelhas (Apis Mellifera L.) produzido na microrregião de Pires do Rio, no Estado de Goiás; Evaluation of production conditions and quality of honey bee (Apis Mellifera L) produced in microregion of Pires do Rio in the state of Goias

ANANIAS, Karla Rubia
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia
Tipo: Dissertação Formato: application/pdf
Português
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This study aimed at evaluating conditions of production and extraction of honey produced by Apis mellifera L. in Pires do Rio micro region in the state of Goias. For the evaluation of the apicultural Practice and Good Manufacturing Practices, we used a checklist compiled from the health standards in Brazil, where 29 extraction units were visited. The results showed that conformity index ranged 03-70% and that the extraction conditions interfered directly in product quality. They were analyzed for moisture, acidity, hydroxymethylfurfural, reducing sugars, apparent sucrose, ashes, insoluble solids and microbiological analysis of fungi and yeast. Of the 35 samples analyzed was observed that 22 (62.85%) have inadequate quality according to the criteria recommended by Instruction Nº. 11 MAPA, while the nonconformities related to moisture (1 to 35, 2.85%), Acidity Total (9 to 35, 25.7%), Hidroximetilfurfural (4 of 35, 11.4%), insoluble solids (12 to 35, 34.28%), Ash (2 of 35, 5.7%). The amount of yeast and mold counts were also evaluated and from <1.0 x 10 ¹ ² to 5.0 x 10 CFU / g were found. The study results indicated that only 37.14% of the samples are in accordance with the guidelines established by the legislation. It follows therefore that the majority of establishments surveyed have unsatisfactory hygiene conditions and thus do not meet the current legislation with regard to the Good Manufacturing Practices for the production of safe food; O objetivo deste trabalho foi avaliar as condições de produção...

‣ Avaliação das características físico-químicas e alterações do leite UHT (UAT) produzido no Estado de Goiás ao longo da estocagem; Avaliação das características físico-químicas e alterações do leite UHT (UAT) produzido no Estado de Goiás ao longo da estocagem

COSTA, Andréia Di Martins Carmo
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia
Tipo: Dissertação Formato: application/pdf
Português
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With the objective of evaluating the physical/chemical, microbiological characteristics and the changes that occur in UHT milk (UAT) processed in the State of Goias during its storage for 135 days, a study was done between August and December 2008 with all the companies that produced UHT milk (UAT) processed in the State. Samples were collected from refrigerated raw milk stored in milk storage silos of industry for analysis of their physical/chemical and microbiological characteristics. From each company, twelve one liter cartons of milk were collected for analysis of their physical/chemical and microbiological properties as well as nitrogen compounds and the amount of fat separation from the milk and sedimentation within each sample. The samples were sent to the laboratories of Microbiology and Dairy of the School of Agronomy and Food Engineering at the Federal University of Goias (UFG). The physico-chemical properties of raw milk were in accordance with the parameters established by legislation, except for three brands of milk, with values of freezing point, nonfat milk solids and total solids. The Alizarol test results were normal for UHT milk (UHT) of all brands, except the milk of the mark "E", which has had worst results established by legislation. All milk samples were within the standards for titratable acidity and pH. The density indices were normal...

‣ Efeitos da temperatura de secagem nos teores de compostos cianogênicos totais e fibra alimentar de casca de maracujá; Effect of the drying temperature in levels of cyanogenic compounds and dietary fiber in passion fruit skin flour

DEUS, Gilciléia Inácio de
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia
Tipo: Dissertação Formato: application/pdf
Português
Relevância na Pesquisa
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Brazil is one of the world s largest producers of yellow passion fruit (Passiflora edulis), that are mainly consumed fresh or used to produce juice. Studies indicate the use of yellow passion fruit skin in jam, sweets, cereal bars, cereals, and cookies especially due to its soluble and insoluble fiber content. Other studies have shown that yellow passion fruit skin contains cyanogenic compounds that may prooke intoxication when ingested above the threshold dose. The present work aim to assess the effects of different drying temperatures on the physical and chemical properties and total content of cyanogenic compounds in yellow passion fruit skin. The fruits were purchased at Goiania´s market and their characterization included visual evaluation of the color, average weight and proportion skin:pulp. The skin was sanitized, triturated, dried at 30°C or 45°C or 60°C to produce flour, in three repetitions for each temperature. The flour obtained at each drying temperature, and a commercial brand of yellow passion fruit flour were analyzed as to moisture, water activity, pH, titratable acidity, and total content of cyanogenic compounds. Yellow skins presenting small green spots characterize ripening stage 6 and were observed in 35.00% of the fruits. Average fruit weight was 142.06±31.95 g...

‣ CARACTERIZAÇÃO FÍSICO-QUÍMICA, MICROBIOLÓGICA E SENSORIAL DE PÃES DE FORMA ELABORADOS COM SUBPRODUTOS DE BARU (Dipteryx alata Vog.); CARACTERIZAÇÃO FÍSICO-QUÍMICA, MICROBIOLÓGICA E SENSORIAL DE PÃES DE FORMA ELABORADOS COM SUBPRODUTOS DE BARU (Dipteryx alata Vog.)

ROCHA, Lorena Santana
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia
Tipo: Dissertação Formato: application/pdf
Português
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The objective of this work was to investigate the feasibility of the pell and flesh of the baru, while ingredient in the development of bread-form. From the formulation of a bread standard were developed four types of breads so using to peel and flesh of baru in different proportions (PCB25 - 25.00%, PCB50 - 50.00%, PCB75-75, 00% and PCB100 - 100.00%) to replace the farelo of wheat. The peel and flesh of baru were analyzed for microbiological quality, levels of moisture, protein, lipids, carbohydrates, fiber, ash, pH, content of soluble solids. With the exception of the last two analisys, the others have been held for breads, even to the sensory analysis, specific volume and density. The results were analyzed by the coefficient of variation, analysis of variance, test Tukey (p <0.05) and correlation of Pearson. The analysis of the composition centesimal of the peel and flesh of the baru revealed a high content of carbohydrates (65.00%) and fiber (4.00%), a low concentration of protein and lipid (4.00% and 3.00%, respectively). The peel and flesh of baru presented concentration of soluble solids with a value of 5.00 ° Brix and pH equal to 5.40. The breads have developed an average 34.00% moisture, 2.00% ash, 2.00% of lipids, 13.00% of protein...

‣ Isolamento e caracterização de microrganismos em leite cru refrigerado e leite UHT no estado de Goiás e desenvolvimento de filme ativo antimicrobiano para inibição de Bacillus sporothermodurans; Isolation and characterization of microorganisms in refrigerated raw milk and UHT milk in the state of Goias and development of antimicrobial active film for inhibition of Bacillus sporothermodurans

PEREIRA, Flavio Evans Vilela
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia
Tipo: Dissertação Formato: application/pdf
Português
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Raw milk is a natural culture medium for the microbial growth and easy deterioration, because of that, thermal processing is needed as soon as possible. A new technology has been used to improve the food quality, active packaging, such as antimicrobial films, wich the intention to control the microbial growth in the products. The aim of this study was to evaluate the UHT milk quality produced in Goiás State, isolation and identification of Bacillus sporothermodurans, beside create a antimicrobial film for inhibition of this microrganism high heat resistance spore former. The isolation of psychrotrophic in raw milk was used PCA with incubation at 21 °C for 72h. To evaluate the UHT milk has been doing research on aerobic mesophilic in PCA with incubation at 30 °C for 72h and to thermoresistents microrganisms was in ABHI with incubation at 35 °C for 48h. The identification of isolates was performed according to convetional methods of biochemistry identification. From raw milk, the psychrotrophic microrganisms most isolates were Staphylococcus sp. and Corynebacterium sp., both with 21,5% from 70 isolates, verifying a higher contauge of Gram-positive microrganisms (82,85%). Considering the 157 UHT isolates, just 31 were identified as Gram-positive microrganisms through biochemical tests...

‣ Rendimento industrial e valor nutricional de grãos de milho QPM e de grãos de gérmem de milho comum; Industrial yield and nutritional value of a qpm corn grain and the grain and germ of common maize

CASTRO, Maiza Vieira Leão de
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia
Tipo: Dissertação Formato: application/pdf
Português
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1627.624%
Endosperm hardness is an essential attribute for producers and industries that using corn as a raw material. Kernel texture alterations, however, hamper the commercial use of Quality Protein Maize (QPM). In this experiment, industrial yield was compared in kernel degerming and endosperm splitting and the nutritional value of a QPM variety and common corn genotypes. One QPM variety and three commercial corn hybrids cultived in Goiás were studied. The QPM and the common corn hybrids were processed using the dry degerming method and the resulting yield was expressed as the ratio of the weight of the fractions obtained to the initial weight of the whole corn. The chemical composition and the amino acid profile of QPM, common corn and common corn germ were determined and an experiment with recently weaned Wistar rats was carried out. Four 7 %-protein and one nonprotein diet were prepared. Protein utilization was estimated using the DCF (Dietary Conversion Factor), NPR (Net Protein Ratio), True Digestibility, and the PDCAAS (Protein Digestibility- Corrected Amino Acid Score). In comparison with common corn, QPM presented lower endosperm yield, higher germ and fine fractions (< 0.5 mm) yield, and the same yield for hominy in endosperm splitting. QPM presented similar levels of proteins...

‣ Determinação das melhores condições de extrusão e caracterização de farinha de feijão para utilização como ingrediente de alimentos instantâneos; Determining the best conditions for extrusion and characterization of bean flour for use as an ingredient of instant foods

MATTOS, Lilian Cristian
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia
Tipo: Dissertação Formato: application/pdf
Português
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The common bean (Phaseolus vulgaris L.) assumes great importance in human nutrition. It holds essential components to the diet such as proteins, carbohydrates and minerals. The bean cotyledon is a byproduct of the bean industry; however, its nutritional value is kept. An alternative to the exploitation of bean cotyledon is the use of extrusion in the development of food products. In this context, the objective of this research was to produce extruded flours from the common bean cotyledon (Phaseolus vulgaris L.), the Carioca type, in different conditions of temperature and humidity in order to achieve technological and biochemical parameters for their use as instant food ingredient. The grains were crushed to a granulometry between 0.75 and 0.85 mm. The extrusion was carried out in full line of extrusion using extruder model MI - 130 plus, screw rotation speed 414 rpm, single screw and long with 02 compression rates and helical shirt. A model 22 was applied to evaluate the conditions of extrusion. The variables studied were temperature (150, 154, 164, 174 and 178° C) and humidity (12.3, 14, 18, 22 and 23.7%). After extrusion, the products milled to obtain flour were evaluated for chemical composition, rate of water absorption, water solubility...

‣ Mudanças físico-químicas e sensorias de farinhas de arroz submetidas à torração.; Physical, chemical and sensorial changes of flours of rice submitted

TAVARES, July-ana Souza
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia
Tipo: Dissertação Formato: application/pdf
Português
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Rice is a cereal consumed primarily as whole grain, and its composition and fractions are subject to varietal differences, environmental variations, handling, processing and storage. Broken grains of rice are fractions generated during processing and may represent between 14% and 60% of total grains. The processing of broken grains in the form of flour is an alternative to the use of this byproduct in the food industry. The thermal changes, such as toasting, could modify the sensory characteristics of rice flour due to the occurrence of reactions such as Maillard, and changes in the technological characteristics such as absorption capacity and water solubility, viscosity and amylose content. This research studied the influence of moisture content and toasting time in microwave on physical characteristics (size, modulus of fineness, color, viscosity, water absorption index and water solubility index) chemical (moisture, ash, crude protein, fat, carbohydrates and amylose content) and sensorial of raw rice flour and toasted of cultivars BRS Primavera, BRS Sertaneja and IRGA 417. We also determined the income benefit, whole grain and the degree of polishing of rice grains of these cultivars and scanning electron microscopy of some raw flour and toast. He was employed a Central Composite Rotational Design (CCRD)...

‣ Influência do tempo de torra por microondas nas características sensoriais, físicas e químicas de farelos de arroz e sua aplicação em barras de cereais; Influence of microwave roasting time on sensory, physical and chemical properties of rice bran and its application in cereal bars

GARCIA, Marina Costa
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia
Tipo: Dissertação Formato: application/pdf
Português
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The aim of this study was to evaluate the influence of microwave roasting time on the sensorial, physical, and chemical characteristics of rice brans and their application in cereal bars. The raw and roasted rice brans of the BRS Sertaneja, BRS Primavera and IRGA 417 cultivars differed in regard to the color parameter, with darkening, yellowing and reddening occurring with roasting. IRGA 417 s raw and roasted brans presented a lighter coloration in comparison with those of the BRS Primavera and BRS Sertaneja cultivars. The Free Profile made it possible to differentiate the samples by cultivar and roasting time. The longer the roasting time, the more intense were the brans roasted and burned aroma and flavor. The IRGA 417 cultivar was characterized by a less burnt aroma and flavor. IRGA and Primavera were more similar to each other and differed from the BRS Sertaneja cultivar for the same roasting times. The centesimal composition of rice bran changed during roasting, but rice bran may still be used as human food since it remains rich in proteins and lipids as well as increasing insoluble and total dietary fiber content. The roasting process lowered the level of reducer sugar and phytic acid in rice bran. As the quantity of roasted rice bran in the cereal bar formulations increased...

‣ Qualidade nutricional e valor protéico da amêndoa de baru em relação ao amendoim, castanha-de-caju e castanha-do-pará; Nutritional quality and protein value of the baru almond compared to those of the peanut, cashew nut and Brazil nut

Freitas, Jullyana Borges de
Fonte: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Ciência e Tecnologia de Alimentos (EAEA); Escola de Agronomia e Engenharia de Alimentos - EAEA (RG) Publicador: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Ciência e Tecnologia de Alimentos (EAEA); Escola de Agronomia e Engenharia de Alimentos - EAEA (RG)
Tipo: Dissertação Formato: application/pdf
Português
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The aim of this study was to characterize the chemical composition of the roasted baru almond, which is derived from different native plants in the west of the State of Goiás, and to compare its protein quality to that of the peanut, cashew nut and Brazil nut. Standardized methods were used to determine centesimal composition, amino acid profile, fatty acids and mineral content. The experiment was carried out with 42 male weanling Wistar rats. The animals were randomly assigned into seven groups. The experiment lasted fourteen days. The diets were formulated according to AIN-93G, six diets with 10% protein: CAS7 (7% lipid casein), CAS15 (15% lipid casein), BA (baru almond), PN (peanut), CN (cashew nut), BN (Brazil nut) and a protein-free diet. The consumption was controlled according to the energy value of the diets. The protein value was estimated using NPR (Net Protein Ratio) and PDCAAS (Protein Digestibility-Corrected Amino Acid Score). The seeds and nuts are sources of proteins (16.3 to 32.3g.100g-1) and lipids (42.7 to 57.9g.100g-1). The protein content of baru almonds varied significantly (Tukey, p<0.05) between plants (24.2 to 31.9g.100g-1). The amino acid profile of baru almonds also varied significantly between plants. Lysine (Limiting Essential Amino Acid - LEAA of 43% to 72%) and sulfur amino acids (LEAA of 78% to 90%) were the limiting amino acids...

‣ Avaliação e caracterização das propriedades filmogênicas de proteínas do soro de leite submetidas à irradiação e modificação de pH; Evaluation and characterization of whey film protein properties submitted to radiation and modification of pH

Fernandes, Ana Paula Stort
Fonte: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Ciência e Tecnologia de Alimentos (EAEA); Escola de Agronomia e Engenharia de Alimentos - EAEA (RG) Publicador: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Ciência e Tecnologia de Alimentos (EAEA); Escola de Agronomia e Engenharia de Alimentos - EAEA (RG)
Tipo: Dissertação Formato: application/pdf
Português
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The packages comprise a large part of the daily disposal of household waste and these household waste are the most impactful to the environment. The development of biodegradable packaging material, seeking to replace synthetic polymers, is an approach used in an attempt to reduce the environmental impact caused by the very slow degradation of synthetic material packages. It is known that the development of biomaterials, applicable to various industries technology in the area of packaging, gaining particular attention on the issue of preserving the environment. The aim of this study was to develop a biodegradable films of whey protein irradiated subjected to pH modification, and evaluate their mechanical, optical, structural and barrier properties. The experiment was conducted in the Department of Food Engineering, College of Agronomy, Federal University of Goiás (UFG), located in Goiânia (GO). The protein concentrate, whey was supplied by the Argentine company Arla Foods. Statistical analysis was performed by analysis of variance (ANOVA) and Tukey test (p ≤ 0.05). The computer program Version 2.15.1 R (Vienna, Austria) was used for calculations. In the experiment, all analyzes were performed with three replicates read in triplicate except mechanical tests...

‣ Pesquisa de listeria monocytogenes em linguiças do tipo frescal; Search for listeria monocytogenes in frescal sausages type

Almeida, Thatyana Lacerda de
Fonte: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Ciência e Tecnologia de Alimentos (EAEA); Escola de Agronomia e Engenharia de Alimentos - EAEA (RG) Publicador: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Ciência e Tecnologia de Alimentos (EAEA); Escola de Agronomia e Engenharia de Alimentos - EAEA (RG)
Tipo: Dissertação Formato: application/pdf
Português
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Studies conducted in Brazil showed the presence of pathogenic bacteria in foods whose consumption can cause diseases and food-borne disorders. In general, consumers have expectations about consuming safe food and foodborne diseases are highly unpleasant, generating distrust in the quality of food products on the market. Listeria monocytogenes is an important pathogen transmitted by food, whose accurate identification is important for the correct risk determination associated with the ingestion of various kinds of food. Considering the importance of this pathogen to the consumer, the present study aimed to isolate and identify Listeria monocytogenes in frescal type of sausages, butchers sold in the city of Aparecida de Goiânia Goiás. 88 samples were analyzed, been 44 frescal type of pork sausage and 44 of chicken meat from the butchers of Aparecida de Goiânia, registered in the Comércio Varejista de Carnes Frescas in Goiás. Was followed the methodology of sampling and analytical recommended by the American Public Health Association, and the analyzes were performed at the Laboratório de Controle Higiênico Sanitário de Alimentos da Faculdade de utrição da Universidade Federal de Goiás. Of the total samples, six were considered suspicious and inteneded with biochemical evidence...

‣ Avaliação de queijos ricota comercializados em Goiânia-GO e queijos processados com diferentes concentrações de leite e adicionados de proteínas de soja e cálcio; Evaluation of Ricotta cheese sold in Goiânia-GO and processed with different concentrations of milk and added soy protein and calcium

Oliveira, Marinna Barros de
Fonte: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Ciência e Tecnologia de Alimentos (EAEA); Escola de Agronomia e Engenharia de Alimentos - EAEA (RG) Publicador: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Ciência e Tecnologia de Alimentos (EAEA); Escola de Agronomia e Engenharia de Alimentos - EAEA (RG)
Tipo: Dissertação Formato: application/pdf
Português
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The Ricotta is produced by precipitation and denaturation of the whey proteins by heat influenced by acidification. Their proteins have high nutritional and functional quality, however the Ricotta has low income and fragile texture when compared to other types of cheeses. The aim of this work was to process and evaluate ricotta cheese added different concentrations of milk and compare them with cheeses marketed. Moreover, developing and evaluating Ricotta cheese adding soymilk and varying the initial acidity of the mixture and adding calcium salts. In the nutritional composition of Ricotta cheeses added different concentrations of milk, the higher the concentration of milk, the largest protein and salts., and lower moisture. The values found in cheeses with added milk (20 and 35%) were similar when compared with marketed cheeses, characterizing these may be on the verge or exceeding the limits of adding milk established by law. That is, the addition of milk, mainly in order extrapolated, change substantially the physical and chemical characteristics of Ricotta cheese, often leading to confuse consumers about specific and unique characteres to that type of cheese, which makes a cheese originally high nutritional quality and good sensory characteristics...

‣ Qualidade de farinhas pré-gelatinizadas e macarrões formulados com arroz (Oryza sativa L.) e linhaça (Linum usitatissimun L.); Quality of pre-gelatinized flours and pasta produce with rice (Oryza sativa L.) and flaxseed (Linum usitatissimun L.)

Moura, Camila Melo Araújo de
Fonte: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Ciência e Tecnologia de Alimentos (EAEA); Escola de Agronomia e Engenharia de Alimentos - EAEA (RG) Publicador: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Ciência e Tecnologia de Alimentos (EAEA); Escola de Agronomia e Engenharia de Alimentos - EAEA (RG)
Tipo: Dissertação Formato: application/pdf
Português
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The aim of this work was to determine the condition best suited for extrusion production of a meal pre-gelatinized rice and defatted flaxseed (80:20) for the formulation of gluten-free pasta. Was prepared a mixture design with different blends of flour pre-cooked rice and flaxseed, rice flour and defatted flax flour and cooking characteristics (optimum cooking time, increase in mass, cooking losses) and texture profile (firmness and stickiness) were analyzed by means of triangular diagrams mixing. It was observed that the addition of 20 g flaxseed flour 80 g rice flour increased (p> 0.05) values of ash, proteins, lipids, total dietary fiber, soluble and insoluble and decreased total energy and carbohydrate in relation to rice flour. There was an increase in solubility index and water absorption and oil absorption capacity after extrusion. The highest values of solubility index [21.36 g (100 g) -1] and water absorption [10.23 g of gel (g dry mass) -1] and lower oil absorption capacity [2.18 g of gel (g dry mass) -1] were found in higher humidity and lower extrusion temperatures studied. The color parameters were also affected by process conditions, making the darker flour (decrease of L *), with a tendency to various shades of red and yellow (increased a * and b *). The rice flour...

‣ Avaliação da solubilidade da curcumina e caracterização de filme ativo incorporado com nanosuspensão de curcumina; An assessment of solubility of curcumin and characterization of active films incorporated with curcumin nanosuspension

Carvalho, Deivis de Moraes
Fonte: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Ciência e Tecnologia de Alimentos (EAEA); Escola de Agronomia e Engenharia de Alimentos - EAEA (RG) Publicador: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Ciência e Tecnologia de Alimentos (EAEA); Escola de Agronomia e Engenharia de Alimentos - EAEA (RG)
Tipo: Dissertação Formato: application/pdf
Português
Relevância na Pesquisa
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Curcumin is a yellow antifungal, bioactive agent and natural antioxidant compound obtained from Curcuma rhizomes. It presents the disadvantage of low solubility in water. Nanocurcumin can be more soluble than curcumin. Surfactants can also be applied to increase substances solubility and prevent particle aggregation. Active packaging systems are based on materials with additives to be added to the polymer in order to extend shelf life and increase consumer safety. The physical properties of the polymers are associated with the addition and miscibility of components. Mechanical analyses are generally carried out on active packaging to verify handling resistance, flexibility and elasticity as well as the efficiency of food protection. The objectives of this study we pre: to increase curcumin solubility; to assess the antioxidant activity; to produce an active film with addition of curcumin nanosuspension; to assess the active component physical characteristics and migration. Curcumin proved more soluble in glycerol and ethanol than in water and more soluble in ethanol than in glycerol. Meaningful increase was observed in curcumin solubility for these solvents mixture compared with pure water. The method applied to decrease the particles size proved efficient. Curcumin suspensions in tween 80 increased solubility. Curcumin presented good antioxidant activity. The decrease in particles size did not increase curcumin antioxidant activity. The addition of curcumin influenced the mechanical characteristics of the cellulose acetate films but did not affect the CO2 permeability. Curcumin provided the films with yellow coloring and increased their opacity. No meaningful difference was observed for the rate of migration between nanosuspension and a simple mixture of curcumin and tween 80. The curcumin migration was higher for the films with tween 80 addition.; Financiadora de Estudos e Projetos- Finep; A curcumina é um composto obtido a partir dos rizomas da Curcuma. É antifúngico...

‣ Avaliação cinética de comportamento de componentes do baru (Dipteryx alata Vog.) para estudo da vida de prateleira da polpa do fruto; Evaluation of kinetic behavior of components of baru (Dipteryx alata Vog.) Study for the shelf life of fruit pulp

MENDONÇA, Aline Luiz de
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia
Tipo: Dissertação Formato: application/pdf
Português
Relevância na Pesquisa
1624.2655%
The work aimed to achieve the kinetic study of the physical and chemical characteristics of the pulp baru, through physical and chemical analyses, with focus on tannins, for 6 months of storage. We used two treatments, washing fruits of barus with and without sanitation, both stored in plastic boxes with circulating air, clean and a place under the sun and at room temperature. The proximate composition of the pulp baru occurred in two stages: beginning and end of the study. There was fortnightly analyses in the first 45 days and then of forty-five to forty-five days, for 6 months. It was evaluated in the pulp content of tannins, total and reducing sugars, color and proof of rancidity, and the whole fruit weight and size; addition to microbiological analyses of pulp at each time of storage. There was also a sensory analysis of acceptance of dry biscuit, with and without the replacement of 25% for wheat flour by pulp baru, three times of storage. The results were analyzed using analysis of variance (ANAVA) and Tukey's test (P<0.05). In compositions centesimals observed that the levels of moisture and fibre increased significantly (P<0.05) at the end of the study, while the level of lipids decreased significantly (P<0.05) and the content of protein has remained equal. The levels of reducing sugars and totals have increased over the period of storage. To this total sugar content increased from 22.70% to 47.02% and 23.18% to 48.18% for pulp washing with and without sanitation...

‣ Cereal extrusado, free glúten, formulado com subprodutos de arroz e quinoa; Development and characterization of a gluten-free cereal containing quinoa and rice

Godoy, Roberta Camargo de
Fonte: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Ciência e Tecnologia de Alimentos (EAEA); Escola de Agronomia e Engenharia de Alimentos - EAEA (RG) Publicador: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Ciência e Tecnologia de Alimentos (EAEA); Escola de Agronomia e Engenharia de Alimentos - EAEA (RG)
Tipo: Dissertação Formato: application/pdf
Português
Relevância na Pesquisa
1630.6053%
Rice is considered a staple food in many parts of the world. A cause for concern is the rice breakdown during milling processes and these broken grains are not generally accepted by consumers. The rice industry generates a lot of waste, and broken grains of rice and bran. These products can be blended with certain desired ingredients to improve its quality for preparing extruded grains such as "snacks". With environmental concerns, issues related to hunger and waste is important to study the utilization of these residues with the use of available technology. The aim of this study was to develop extruded cereal in natural flavors, sweet and savory, from the broken grains of rice bran and rice with quinoa, evaluate their physico-chemical, microbiological and sensorial acceptance. There was no microbial contamination of the final product with none of the microorganism studied, namely coliform at 45 ° C, Salmonella, Staphylococcus aureus, Bacillus cereus, molds and yeasts. For sensory evaluation showed that the salty snack earned the highest score for all criteria: overall (6.5), flavor (6.5), crispness (7.2), on a scale 1-9. To purchase intention, the result was 3.5 on a scale of 1 to 5. The use of rice cereal gluten-free...

‣ Qualidade física, química e antimicrobiana de sabões líquidos elaborados com óleo residual de fritura e diferentes agentes saponificantes; Quality physics, chemistry and antimicrobial of liquid soaps prepared with residual oil frying and different agents saponificants

Herranz, Andressa Pasini
Fonte: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Ciência e Tecnologia de Alimentos (EAEA); Escola de Agronomia e Engenharia de Alimentos - EAEA (RG) Publicador: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Ciência e Tecnologia de Alimentos (EAEA); Escola de Agronomia e Engenharia de Alimentos - EAEA (RG)
Tipo: Dissertação Formato: application/pdf
Português
Relevância na Pesquisa
1629.7675%
The residual oils obtained from the process of frying food are considered hazardous waste by the ministry of environment, due to their degradative nature when improperly discarded in soil and groundwater. Thousands of tons of this waste are produced daily across the country, and more than half are discarded improperly, because no public policies that encourage proper disposal and even recycling of these oils. Soaps are carboxylic salts can be made from these wastes, becoming an alternative to the recycling of frying oils, promoting sustainable development. Liquid soaps are widely used either as cleaning products or toiletries, however the use of frying oils in these products, delimits the knowledge still popular, with little initiative industries in marketing these products. Therefore, this work was developed with the aim to formulate liquid soaps with residual oil in a frying food industry, different pHs (8, 10, 12 and 14) and saponified by different bases (KOH / NaOH). The soaps were evaluated for their technological qualities, divided into physical (foaming ability, solubility, viscosity and cleaning), chemical properties (acidity and alkalinity free) and microbiological (minimal inhibitory concentration for E. coli and S. aureus). The two tests with liquid soaps KOH or NaOH...

‣ AVALIAÇÃO DO RENDIMENTO E MATURAÇÃO DE QUEIJOS PECORINO PRODUZIDOS COM LEITE DE VACA E LIPASES DE CABRITO E CORDEIRO; EVALUATION OF YIELD AND MATURITY OF Pecorino PRODUCED WITH MILK COW And lipase kids and lambs

URZEDO, Ana Carolina Borges de
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia
Tipo: Dissertação Formato: application/pdf
Português
Relevância na Pesquisa
1723.789%
This study aimed to assess: the manufacture of Pecorino cheese from cow's milk, income from manufacturing of cheeses, lipolysis and proteolysis during the maturation, preference and acceptance of cheeses and characterize the Pecorino cheese, milk, cow, after 45 days of maturation. Pecorino cheeses were produced by three treatments: no lipase, with lipase of kid and with lipase of kid and lamb. It was examined the income of manufacturing in L/ kg, the coefficient GL, L / kg adjusted and the figures the transfer of components of milk to the cheese. It was found that the addition of lipase didn t influence in income. The income from the manufacture of Pecorino cheese found was 8.05 L / kg, 8.22 L / kg adjusted, 61.25 gST / L e 76.34%, 93.00% and 50.57%, the figures for transfer of protein, fat and total dry extract, respectively. It was found that the humidity decreased and dry extract increased, the pH increased at the start and then had a slight decline, the salt content in moisture, nitrogen soluble at pH 4.6, the non-protein nitrogen in the rates of extension and depth of maturity increased over the 45 days of maturity. Adding the milk lipases influenced the increase in the rate of acid free fatty acids in Pecorino cheese. At the fortieth fifth day of maturation there was significant difference between the rates of acidity of the AGL Pecorino cheeses of all treatments. The index of acidity of AGL of Pecorino cheese containing lipase of kid and lamb was higher than that of Pecorino cheese containing lipase of kid...