https://repositorio.ufba.br/handle/ri/20006 Mon, 04 May 2026 03:58:25 GMT 2026-05-04T03:58:25Z https://repositorio.ufba.br/handle/ri/34824 Título: Teste1 Autor(es): Sobrenome, Nome Primeiro Orientador: Ferreira, Ederlan Abstract: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Editora / Evento / Instituição: Universidade Federal da Bahia Tipo: Dissertação Fri, 07 Jan 2022 00:00:00 GMT https://repositorio.ufba.br/handle/ri/34824 2022-01-07T00:00:00Z https://repositorio.ufba.br/handle/ri/32114 Título: A single dose of purple grape juice improves physical performance and antioxidant activity in runners: a randomized, crossover, double‑blind, placebo study Autor(es): Toscano, Lydiane de Lima Tavares; Silva, Alexandre Sérgio; França, Ana Carla Lima de; Almeida Filho, Eder Jackson Bezerra de; Sousa, Bruno Rafael Virgínio de; Costa, Matheus da Silveira; Marques, Aline Telles Biasoto; da Silva, Darcilene Fiuza; Sena, Klécia de Farias; Cerqueira, Gilberto Santos; Gonçalves, Maria da Conceição Rodrigues Abstract: Purpose To investigate the effects of a single dose of juice on physical performance, oxidative stress, inflammation and muscle damage in runners. Methods Fourteen recreational male runners (39±9 years, VO2peak=55.9±6.5 ml/kg/min) performed two running tests to exhaustion at 80% of VO2max after ingesting grape juice or a placebo drink (10 ml/kg/day) randomly. Blood samples were taken before and 2 h after supplementation and immediately after running to analyze total antioxidant capacity (TAC), malondialdehyde (MDA), alpha-1 acid glycoprotein (A1GPA), high-sensitivity C-reactive protein (hs-CRP), creatine kinase (CK) and lactate dehydrogenase (LDH). Results The participants ran for an average of 59.2±27.8 min until exhaustion in the placebo group and for 68.4±29.7 min until exhaustion in the grape juice intake group, which was a significantly longer time (p=0.008). This improvement in physical performance was accompanied by a 43.6% increase in TAC (p=0.000) at the post-exercise timepoint compared to the level at baseline. MDA, A1GPA, hs-CRP, CK, and LDH did not exhibit changes. In contrast, no significant change in any variable was observed after consuming the placebo drink. Conclusion The single-dose intake of purple grape juice demonstrated an ergogenic effect in recreational runners by increasing run time to exhaustion and increasing antioxidant activity. Editora / Evento / Instituição: European Journal of Nutrition Tipo: Artigo de Periódico Fri, 15 Nov 2019 00:00:00 GMT https://repositorio.ufba.br/handle/ri/32114 2019-11-15T00:00:00Z https://repositorio.ufba.br/handle/ri/27020 Título: Micobiota contaminante e ocorrência de aflatoxinas em farinha de milho flocada pré-cozida comercializada em diferentes municípios do Estado da Bahia Autor(es): Santos, Genivaldo Cruz Abstract: ABSTRACT The micotoxins are secondary metabolics produced by fungus and they represent a potential risk for the human health, when found in the foods. Among the micotoxins, the aflatoxins are the most important and more studied. The corn and its derived, especially the maize flour is among the main foods found in the basic diet of the Brazilians, particularly in Bahia. There are few studies in the State on the micotoxins research in foods derived from the corn. The presence of toxigens molds in maize flour is not necessarily configured in the presence of micotoxins, but it represents an alert for a larger attention to the agricultural practices, so much in the choice of the grain for the planting, in the harvest, in the transportation, in the processing, in the storage, as in the commercialization of this product. The molds more frequently isolated in derived of the corn they are the Aspergillus spp., Penicillium spp. and Fusarium spp. The aflatoxina B1 (AFB1) it is a potent carcinogen classified as belonging to the group 1 of the substances potentially cancerous. The consumption of flocked maize flour pre-cooked with characteristics undesirable micotoxicologics can be a danger for the human health. Foccus on the importance of the toxigens molds and the micotoxins, this work had for objective to verify the occurrence of toxigen molds and aflatoxins in 112 samples of maize flour pre-cooked flocked trade in different cities in the State of Bahia from June 2007 to June 2008. The studied samples were analyzed for isolation and counting of molds in BDA with chloranfenicol. 32% of the samples were positive for toxigen molds, being 50% acted by storage molds, 31% of field and 17% of both. The molds of the gender Fusarium, Aspergillus and Penicillium were found more frequently in the samples that presented water activity between 0,52-0,60. 58% of the samples with mold contamination were conditioned in packaging. In relation to the aflatoxins presence, 14% (16/112) of the samples they were positive, where 5% (6/112) they presented concentrations above the maximum limit recommened by the Legislation (20 g/Kg). The molds of the gender Aspergillus were presented in 44,4% (16/36) of the analyzed samples. From this gender were isolated and identified three species: A. fumigatus 27,8% (10/36), A. flavus 22,2% (8/36) and A. terreus 2,8% (1/36). The analysis of the potential toxigen of 28 isolated of Aspergillus spp. revealed the aflatoxins presence in 50% (14/28) of the stumps, in a concentration of 24,29 µg/Kg to 6.222 µg/Kg, demonstrating that such stumps in favorable conditions of humidity and temperature in the substratum eventually produce aflatoxins. Tipo: Dissertação Tue, 21 Aug 2018 00:00:00 GMT https://repositorio.ufba.br/handle/ri/27020 2018-08-21T00:00:00Z https://repositorio.ufba.br/handle/ri/27011 Título: Investigação de estafilococos coagulase positiva resistentes à meticilina em manipuladores de alimentos em hospitais públicos do município de Salvador- BA Autor(es): Ferreira, Jeane dos Santos Abstract: ABSTRACT The aim of this study was to evaluate the knowledge level, attitudes and practices of food handlers; investigate the presence of methicillin-resistant coagulase positive staphylococci in the hands and nares of handlers and to evaluate the use of antiseptics in the control of contamination. The study was carried out in two steps: first, through interviews with the use of a self-administered questionnaire with 237 handlers, and the second step, to investigate the presence of methicillinresistant coagulase positive staphylococci in the hands and in the nares of 140 handlers. This study is structured into three chapters: The first presents a literature review with matters relevant to the research, the second, an article on assessing the level of knowledge, attitudes and practices of food handlers and the third, an article investigating the presence of methicillin-resistant coagulase positive staphylococci (MRSA) in the hands and nares of food handlers and also the in vitro tests to check the sensitivity of these strains to antiseptics, alcohol gel 70%, iodine 10% and chlorhexidine 2%, commonly used for hand hygiene. The results showed low level of knowledge for most participants (65.8%), although 92.8% said they participated in training. Regarding the attitudes and practices, the percentage of correct answers were 98.3% and 73.4%, respectively. Three models were developed with the independent variables and were observed that education level interfered with the knowledge of food handlers. In the investigating of the presence of MRSA in the hands and nares, although 100% of the foodhandlers had informed that they sanitized their hands on the preparation and distribution of foods, we found 50% of the samples with coagulase positive staphylococci and 28.6% with MRSA. The MRSA strains were more sensitive to chlorhexidine 2% in comparison with other antiseptics. Thus, it can be concluded that the level of knowledge of food handlers in food safety is low, so it is necessary to reevaluate the ways of training of food handlers. In other side, the use of antiseptics in hand washing is essential to avoid contamination of hospital preparations. However, only the use of good antiseptics will not be sufficient if this practice is neglected by the foodhandlers, or if the hospitals do not provide the resources needed to conduct the practice. Tipo: Dissertação Tue, 21 Aug 2018 00:00:00 GMT https://repositorio.ufba.br/handle/ri/27011 2018-08-21T00:00:00Z