Caracterização do leite e do queijo de ovelhas da raça bergamácia suplementadas com óleo ou farelo de linhaça (Linum usitassimum L.)

Pós-graduação em Zootecnia - FMVZ

Análise microbiológica e físico-química de material proteico comestível derivado do processamento da gordura oriunda do abate de bovinos

Background: The use of all by-products of bovine slaughter is of high economic importance for the industries of products of animal origin. Among these products, fat has an important role, once fat rendering may generate several different products, such as protein material that may be used in the manufacture of meat products. However, in spite of the importance that the use of all by-products has for the economic balance of the industry, there are no reports on their use in Brazil, or studies that supply data on microbiological and physical-chemical local standards for this protein. Thus, the objective of this study was to evaluate microbiological and physical-chemical characteristics of protein material obtained from fat rendering, as well as to provide support for companies to use fat rendering to generate protein material, adding value to industrialized meat products.Materials, Methods & Results: The experimental production of edible protein obtained of fat rendering was conducted in slaughterhouse with supervision of the Brazilian Ministry of Agriculture, Livestock and Food Supply. Protein material was obtained in a continuous, humid heat system at high temperatures. Fat scraps containing protein were ground and cooked at high temperature (85 degrees C), and placed in a three phase decanter centrifuge. After centrifugation, protein material was ground again and packed. Samples were collected from 15 batches of protein material, and the following microbiological analyses were carried out: counts of aerobic mesophilic and psychrotrophic microorganisms, coliforms at 35 degrees C, Escherichia coli, sulfite-reducing Clostridium, and Staphylococcus aureus, besides presence or absence of Salmonella and Listeria monocytogens. The following physical-chemical analyses were also carried out: protein, total lipid, moisture, ash, carbohydrate, and energy content. Mean counts of mesophiles, psychrotrophs, and coliforms at 35 degrees C were 4.17; 3.69 and 1.87 (log CFU/g), respectively. Levels of protein, total lipids, moisture, ashes and carbohydrates were 27.50; 7.83; 63.88%; 0.24%; and 0.55%, respectively, and energy content was 182.63 kcal/100g.Discussion: Results of microbiological analyses demonstrated that, although low, the final product showed to be contaminated. Contamination that occurred during the second grinding procedure may be an explanation for these bacterial counts. Also, the temperature used for fat fusion was not enough to eliminate thermoduric microorganisms. However, even with the presence of indicator microorganisms in the samples, none was contaminated by E. coli, sulfite-reducing Clostridium, S. aureus, Salmonella or L. monocytogenes. Physical-chemical analyses showed that the product had adequate nutritional quality. Based on these results, it was possible to conclude that protein material obtained in fat rendering showed characteristics that enable the use of this product as raw material for processed meat products. Besides, the present study was the first one to present scientific results in relation to edible by-products obtained in fat rendering, supplying important information for slaughterhouses and meat-processing plants. The study also produced relevant data on the innocuousness of the product, which may be used to guide decision-making of health inspectors.

Fermentação, cinética e degradação ruminal em ovinos alimentados com fontes de carboidratos associadas ao óleo

The objective this work was to evaluate the degradation, fermentation and kinetics of passage rumen fluid en sheep fed diets containing different carbohydrate associated with the oil. Four rumen cannulated sheep were allotted in 4 x 4 latin square. The treatments consisted of diets with high neutral detergent soluble fiber and diets with high starch associated or not with 4,2% of oil. Incubation times were 3, 6, 12, 24, 48, 72, 96 and 120 hours and ruminal fluid was collected at 0, 2, 4, 6, 8, 10, 12, and 24 hours after feeding. Diets high neutral detergent fiber soluble resulted in greater degradation of dry matter, crude protein, neutral detergent fiber soluble and starch, and higher pH values, butyric acid production, dilution rate and ruminal recycling compared with diets high starch content. The inclusion of 4,2% oil the different carbohydrate sources had no influence on the fermentation kinetics and degradation of the fiber. High content of neutral detergent soluble fiber in the diet favors the ruminal fermentation compared to the high starch content.

Desempenho de novilhos Nelore confinados alimentados com óleo de linhaça in natura ou protegido

Pós-graduação em Zootecnia - FCAV

Efeitos toxicogenéticos e toxicogenômicos do Isotiocianato de Alila (óleo de mostarda) em linhagens celulares de carcinoma de bexiga

Pós-graduação em Patologia - FMB

Avaliação da eficácia do extrato de óleo insaponificavel de abacate e soja (Piascledine) no tratamento de doença periodontal induzida em ratos com artrite

Pós-graduação em Odontologia - FOAR

Óleo de linhaça na terminação de novilhos Nelore: qualidade da carne

Pós-graduação em Zootecnia - FCAV

Síntese de nanocatalisador cerâmico a base de SnO2 pelo método hidrotermal assistido por micro-ondas aplicado a reação de transesterificação do óleo de babaçu

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

Incidência de fungos e germinação de sementes de feijão-caupi (Vigna unguiculata L. (Walp) tratadas com óleo de nim (Azadirachta indica A. Juss)

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

Eficiência de herbicidas no controle de plantas daninhas latifoliadas em mamona

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

Optimizing row spacing and plant population arrangement for a new short-height castor genotype in fall-winter

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

Efeito do óleo essencial de Melaleuca alternifolia e de seu principal componente Terpinen-4-ol sobre isolados clínicos de Candida albicans resistentes

Pós-graduação em Ciências Odontológicas - FOAR

Consumo, digestibilidade e balanço de nitrogênio de cordeiros alimentados com alto teor de amido ou fibra solúvel em detergente neutro associados ao óleo de girassol

The aim of this study was to evaluate the effect of different carbohydrate sources associated with sunflower oil on intake, digestibility of nutrients and nitrogen balance in diets of lambs. Twenty lambs were used, assigned in a completely randomized design with a 2 x 2 factorial arrangement of treatments with two sources of neutral detergent soluble carbohydrate, starch and neutral detergent soluble fiber, with and without the inclusion of 4.2% sunflower oil. The dry matter intake was not affected by carbohydrate sources and the inclusion of oil. Diets with a high percentage of starch provided higher digestibility of dry matter, starch and ether extract. The different sources of carbohydrates had no interference on digestibility of organic matter, crude protein, neutral detergent soluble fiber, nonfiber carbohydrates, neutral detergent fiber, hemicellulose and acid detergent fiber. The addition of oil in the diets increased the digestibility of ether extract. The combination of 4.2% oil in the diet high in soluble neutral detergent fiber had no influence on the nutrient digestibility, otherwise, the addition of oil at high starch diet caused a significant reduction in the digestibility of organic matter, neutral detergent fiber, hemicellulose and nonfiber carbohydrates. The quantities of nitrogen intake, absorbed and retained, did not differ as sources of carbohydrates and oil inclusion in the diet. The association of 4.2 % sunflower oil to the different sources of carbohydrates in the diet does not affect consumption and nitrogen metabolism in lambs. The addition of 4.2 % oil in the diet with high starch (28% of DM diet) promotes reduction in digestibility of organic matter, of fibrous and nonfibrous carbohydrate in the diet.

Avaliação da atividade antidepressiva do óleo essencial de Cananga odorata (ylang-ylang) em camundongos, por via oral

Sabe-se que o número de plantas com atividade comprovada no sistema nervoso central vem crescendo ultimamente, resultado do interesse renovado nesta linha de investigação. O óleo essencial da espécie Cananga odorata (Lam.) Hook. f. & Thomson possui indícios de uma potencial atividade do tipo antidepressiva. A depressão maior ou depressão unipolar é um distúrbio do sistema nervoso central com potencial para se tornar um dos maiores problemas de saúde em termos de qualidade de vida e incapacitação da população mundial em alguns anos, e os tratamentos existentes na clínica possuem diversos problemas, principalmente relacionados a efeitos colaterais. O objetivo deste projeto foi avaliar a atividade antidepressiva do óleo essencial da espécie Cananga odorata (ylang-ylang), administrado por via oral em camundongos. Foram utilizados camundongos Swiss, machos, com aproximadamente 45 dias de idade. O óleo essencial foi solubilizado em Tween, nas seguintes concentrações: 1, 10 e 100 mg/kg (administrado pela via oral – v.o.). O grupo controle negativo recebeu apenas Tween (v.o.), e o grupo controle positivo recebeu imipramina 30 mg/kg (via intraperitoneal), sempre no volume de 10 mL/kg. Os animais foram submetidos ao Teste da Suspensão pela Cauda, para avaliação da atividade do tipo antidepressiva, medindo-se o tempo total de imobilidade e a latência para o aparecimento do primeiro comportamento de imobilidade (em segundos); e ao Teste do Campo Aberto, para avaliação de atividade motora, medindo-se o número de quadrantes percorridos (indicador de ambulação espontânea), e o número de rearings (indicador de comportamento exploratório). Não foi observado efeito do tipo antidepressivo ou sobre a atividade motora e motivacional, em nenhuma das doses testadas do óleo essencial de ylang-ylang, provavelmente pela dificuldade na correlação entre a concentração administrada pela via inalatória e a dose por via oral