The development of new products and the waste reuse has been increasingly explored in different segments. Due to the high humidity of the fruit residues, they must be dried under controlled temperature conditions, to avoid the nutrients degradation. The use of solar energy to heat the drying gas can make the process environmentally sustainable and less costly. The aim of this work was to study the effect of ethanol on the drying kinetics of the tangerine peel, as well as to perform its convective drying using a box-type convective solar dryer. The effect of the initial mass of particles and the air speed on the drying efficiency and proximate composition of the flour of the fruit peel were evaluated. The results show that the kinetics could be represented by the Overhults model. The solar drying using the tray configuration obtained a good drying rate, reaching up to 74 ºC for 6 h of drying in a sunny day. The dry material was crushed to compose the tangerine peel flour, which had about of 60% fibers.
Neste trabalho abordaremos a dificuldade enfrentada pelas famílias atualmente diante o cenário da pandemia COVID-19 para alimentação infantil de forma saudável e com variedades. Enfrentando as dificuldades financeiras e mediante o novo normal com trabalho HOME OFFICE e tendo as crianças em casa, de forma que além da demanda do trabalho, é necessário preparar a alimentação de suas crianças.
Although the tocopherol concentration in Soybean Oil Deodorizer Distillate (SODD) regarding molecular distillation (MD) has been studied in the last 20 years, no scientific studies were published yet in international journals about the results of this technology when applied in an industrial scale. This research aimed to evaluate the tocopherols concentration through industrial patented MD technology in a vegetable oil refinery, using a phospholipase A2 enzymatic physical degumming process, packed dual temperature column deodorizer coupled to a double washer and a Tocoboost® patented technology. The results of the refinery production process from July 2019 to February 2020 could totalize over 81 days, comprising 243 samples and more than 1900 laboratory analysis. The input and output SODD samples were analysed by Gas Chromatography (GC), in which graphics of the automation system and mass balance of the refinery production ranges were also verified. The results showed that it is possible to achieve over five times Vitamin E concentration from non-modified soybean oil deodorizer distillate in a physic enzymatic phospholipase degumming process plant using a combination of advanced technology in order to separate high value-added molecules gained through studied hypotheses regarding vacuum, temperature, distiller models, backset flows, multiple stages of distillation, degradation and product recovery.
RESUMO O Brasil é o quarto produtor mundial de limões. O estado de Minas Gerais é o segundo maior produtor de limões do Brasil com 10 % da produção nacional em 2014. O mercado interno do limão apresenta um potencial de crescimento, pois o consumo no Brasil ainda é baixo. Diante disso, objetivou-se caracterizar os parâmetros físicos e químicos de frutos de limeiras ácidas 'Tahiti' e de limão 'Galego' cultivados em condições de Cerrado. O experimento foi conduzido em pomar do Instituto Federal do Triângulo Mineiro, em Uberlândia/MG. Foram realizadas três colheitas de 120 frutos, no período de safra, entre fevereiro a março de 2017, divididos em 4 repetições. Foram realizadas as análises de peso médio dos frutos, rendimento em suco, acidez total titulável (ATT), pH, sólidos solúveis totais (SST), ratio e índice de cor da casca. Os resultados obtidos para a lima ácida '
The objective of this study is to evaluate the perception of education professionals, before and after the application of theoretical and practical training based on active methodologies, on safety and prevention against fire and evacuation in disaster situations. The research method adopted is an action research, as it involves diagnosis, planning, action and evaluation to identify the perception of fire protection education professionals. The population consists of 29 education professionals and 75 students, aged between 4 and 5 years, from a private school in the city of Itabira-MG. The structured questionnaire technique is used for teachers and employees, applied before the project to measure the interviewees 'prior knowledge and after the project, to evaluate the effectiveness of the applied training, the teachers' perception of their and children's learning and the need for the topic to be an issue that the school community should constantly address as an important issue in the school calendar schedule. The results indicate that it is necessary to adopt safety training in schools and to keep this training constant. It is concluded that if teachers and school staff undergo regular training they will be able to act consciously, with students, in an emergency. That it is important to use scientific methods so that a broad and effective learning occurs and it is necessary to adopt the theme in the syllabus of schools.
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