Robson de Jesus Mascarenhas

Effects of Dietary Brazilian Palm Oil (Mauritia flexuosa L.) on Cholesterol Profile and Vitamin A and E Status of Rats

In vitro studies have been carried out to establish the nutritional differences between crude and refined vegetable oils; however, the impact of the consumption of these foods on metabolism, in particular the effect of buriti oil, needs to be further evaluated. The aim of this study was to evaluate the biochemical and murine parameters and the vitamin A and E status in young rats fed with diets supplemented with crude or refined buriti oil. The animals (n = 30) were randomized into three groups receiving diet added of soybean oil (control), crude buriti oil (CBO) and refined buriti oil (RBO) for 28 days. Rats fed with diet added of refined buriti oil (RBO) showed reduced total cholesterol (up to 60.27%), LDL (64.75%), triglycerides (55.47%) and enzyme aspartate transaminase (21.57%) compared to those fed with diet added of crude oil. Serum and hepatic retinol and tocopherol were higher by two to three times in CBO and RBO groups compared to the control group, but no differences were observed for murine parameters. The results indicate that buriti oil is an important source of the antioxidant vitamins A and E, and refined buriti oil is suggested as alternative to improve the lipid profile of healthy rats.

Qualidade sensorial e físico-química de uvas finas de mesa cultivadas no submédio São Francisco

O objetivo deste trabalho foi avaliar uvas Vitis vinifera L. das variedades comerciais: Brasil, Benitaka, Italia e Red Globe, quanto as caracteristicas fisico-quimicas e sensoriais. Os teores de solidos soluveis, diâmetro e comprimento das bagas, cujos resultados apresentaram conformidade com os padroes comerciais, foram determinados. A avaliacao sensorial foi realizada por meio da Analise Descritiva Quantitativa - ADQ. Foram selecionados e treinados os julgadores que, sob orientacao de um lider, estabeleceram os atributos sensoriais capazes de descrever com fidedignidade as caracteristicas das uvas, conforme se segue: tonalidade de cor, uniformidade de cor, aroma caracteristico, firmeza, gosto doce, gosto amargo, gosto acido, adstringencia, sabor e qualidade global. Constatou-se que as medias obtidas nos atributos tonalidade de cor, uniformidade de cor, firmeza, sabor e qualidade global diferiram estatisticamente dentre as uvas avaliadas e, ainda, que os atributos do sabor, seguido do gosto doce e da tonalidade da cor, apresentaram as correlacoes mais fortes com a qualidade global, determinantes, portanto, das caracteristicas sensoriais das uvas.

Avaliação das Boas Práticas em unidades de alimentação e nutrição de escolas públicas do município de Bayeux, PB, Brasil

The occurrence of foodborne illness outbreaks is increasing in schools, and due to the number of children who consume school meals as the only daily meal, this factor becomes even more worrisome. In this sense, the aim of this study was to evaluate the hygienic-health aspects of Food and Nutrition Units (SFNU) of public schools of Bayeux / PB in relation to the adoption of best practices in school food and nutrition. Data were collected through SFNU checklist during visits to units in 29 schools. The health risk of units evaluated was from regular to very high regarding structure and facilities, hygiene of food handlers, environment and food preparation. It was found that 10.3% of handlers used clean and adequate uniforms, and environment and equipment showed poor conservation status in 75.9% and 89.7% of Units, respectively; control of urban pests and vectors was not effective and cleaning of fresh produce was incorrectly conducted in 51.7% of SFNU of schools evaluated. It could be concluded that the production of meals in SFNU of schools evaluated does not meet the requirements established by the best practices in school food and nutrition.The occurrence of foodborne illness outbreaks is increasing in schools, and due to the number of children who consume school meals as the only daily meal, this factor becomes even more worrisome. In this sense, the aim of this study was to evaluate the hygienic-health aspects of Food and Nutrition Units (SFNU) of public schools of Bayeux / PB in relation to the adoption of best practices in school food and nutrition. Data were collected through SFNU checklist during visits to units in 29 schools. The health risk of units evaluated was from regular to very high regarding structure and facilities, hygiene of food handlers, environment and food preparation. It was found that 10.3% of handlers used clean and adequate uniforms, and environment and equipment showed poor conservation status in 75.9% and 89.7% of Units, respectively; control of urban pests and vectors was not effective and cleaning of fresh produce was incorrectly conducted in 51.7% of SFNU of schools evaluated. It could be concluded that the production of meals in SFNU of schools evaluated does not meet the requirements established by the best practices in school food and nutrition.

Intake of cookies made with buriti oil (Mauritia flexuosa) improves vitamin A status and lipid profiles in young rats

The oil extracted from Mauritia flexuosa (buriti) is rich in vitamin A, tocopherols and unsaturated fatty acids. This study evaluated the retinol status, blood glucose levels, lipid profiles, food efficiency rates (FERs), food conversion rates (FCRs) and murine anthropometric parameters of Wistar rats fed cookies made with buriti oil (BOC). The content of β-carotene and monounsaturated fatty acids in the cookies was enhanced (p < 0.05) using buriti oil. Rats fed BOC showed an increase (p < 0.05) in serum and hepatic retinol levels compared to rats fed cookies made with soy oil (SOC - control). Rats fed BOC showed lower (p < 0.05) total and LDL cholesterol than the control; however, no changes in blood glucose levels or murine anthropometric parameters were observed. Serum retinol contents showed a strong correlation (r > 0.8) with hepatic retinol, and both groups of rats showed moderate correlations (r > 0.6 < 0.5) with FERs, FCRs and weight gain. Taken together, these results indicated that buriti is an alternative to increase vitamin A in baked goods, particularly in cookies. Intake of BOC improves lipid profiles and retinol status without affecting blood glucose in young rats.