http://memoria.ifrn.edu.br/handle/1044/194 Fri, 31 Jul 2026 22:27:58 GMT 2026-07-31T22:27:58Z http://memoria.ifrn.edu.br/handle/1044/3252 Caracterização físico química e microbiológica do sabão sustentável produzido com óleo vegetal residual Few collection and correct disposal actions are adopted for the recycling and environmentally appropriate destination of Residual Vegetable Oil (RVO). Sustainable soap produced from used cooking oil is an alternative for minimizing this type of waste. However, assessing its quality and proposing a correct standardization for the final product produced is a process that is rarely used, with artisanal techniques being adopted, with indefinite quantities, which can harm the health of recyclers and end consumers. For preliminary analysis, oil from the restaurant at IFRN campus São Paulo do Potengi will be collected, followed by use for artisanal production of sustainable soap. In the search for standardization of the soap produced, the chemistry laboratory at IFRN campus São Paulo do Potengi will be used, where the waste will be previously characterized, for definitions, proposals, comparisons and the Center for Water, Food and Effluent Analysis | NAAE for alignment of the probable contaminants identified. The physical-chemical parameters to be analyzed from the oil collected at (15 and 30 days) were: pH, determination of acidity, relative density, determination of moisture and volatile matter, determination of ether-insoluble impurities and microbiological control. To analyze the quality of the sustainable soap, the following parameters were analyzed at (7, 14, 21 and 28 days): pH, organoleptic aspects and average weight, loss of mass (during storage), formation of cracks, light resistance test and water resistance test, foam formation (Ross-Miles test). The results of the residual vegetable oil collected initially for the two storage periods showed a pH of 5.0 considered acidic and after the saponification reaction and the addition of sodium hydroxide it went to a basic pH of 12.0. The oil collected after 15 days had an acidity content of 1.02 mg KOH/g and 0.51% oleic acid, and after 30 days, an acidity content of 0.68 mg KOH/g and oleic acid of 0.34%, density was 0.9224 and 0.9262, respectively, moisture content of 0.28% and 0.23%, impurity content of 2.26% (15 days) and 0.69% (30 days). The collected oil did not show microbiological contamination. It was observed that the soap initially had a very basic pH and after 21 days of rest a pH of 10.0. Mass loss during storage was 1.47% and 1.50%, and mass loss after the water resistance test ranged from 3.42% to 23.43%. In the light resistance test, plaque formation was observed (15 days - 1 sample and 30 days - 3 samples), Ross-Miles test (30 cm of foam formation for both soaps). The soap produced with 15-day-old oil showed cracks in its structure. Sat, 05 Jul 2025 00:00:00 GMT http://memoria.ifrn.edu.br/handle/1044/3252 2025-07-05T00:00:00Z http://memoria.ifrn.edu.br/handle/1044/2170 Um glossário bilíngue terminológico da Agronomia: um recorte The glossaries are linguistic instruments, developed for centuries, emerged as a way of register and get to know words. The agronomy as a agricultural science is a rapidly growing sector international levels by means of advances of scientific research and commercial relations between countries. Given this, the terminology comes up with the improvement of specific terms of the areas of knowledge that is gradually increasing. However, the present work of the technical terms that had made available in the library of the Institute Federal of Education, Science and Technology of Rio Grande do Norte – Campus Ipanguaçu, focuses on the agronomic sector, specifically with respect to the branch of the Fruit growing of export. Furthermore, the elaboration of a bilingual glossary of terms selected by the degree of difficulty arises a pathway to remedy such a deficiency. In view of the above, it is concluded that the availability of linguistic instruments is necessary for the aid of students and teachers of the said institute of education. Fri, 01 Dec 2017 00:00:00 GMT http://memoria.ifrn.edu.br/handle/1044/2170 2017-12-01T00:00:00Z http://memoria.ifrn.edu.br/handle/1044/1953 Percepção ambiental e paisagismo ecológico no ensino fundamental: ferramentas importantes para promoção da educação ambiental no contexto escolar Ecological landscaping is a practice whose purpose is to produce sustainable gardens that enable the harmonious restoration of spaces in a way that does not interfere with the environment, therefore being a promising opportunity for carrying out Environmental Education. This work aimed to investigate, through an action research, the environmental perception of elementary school students and provide reflections on sustainability from the collective and participative construction of an ecological garden at school. Native species adapted to Caatinga were used, as well as vases and ornaments were constructed with reused materials. The interventions were notoriously successful, evidenced by the significant change in the awareness of children about the importance of preserving the environment. Wed, 24 Feb 2021 00:00:00 GMT http://memoria.ifrn.edu.br/handle/1044/1953 2021-02-24T00:00:00Z http://memoria.ifrn.edu.br/handle/1044/1864 O gênero abstract: uma análise dentro dos trabalhos da agroecologia When we write scientific articles, we encounter the abstract genre, a version of the abstract in foreign language that serve to introduce the reader about the contents of the work. The translation of the abstract usually it is done based solely on the abstract, however, this action combined the lack of knowledge about the foreign language used, induces a large number of academics to make mistakes in time of translation. In this way, the need arises to inspect the abstracts and verify translation errors presents. In the bias, this work is intended to analyze the abstracts of the agroecological ambit, which suffers especially with errors of the terms linked to the area. For such abstracts of articles were removed in a scientific magazine of the area. Thu, 01 Jun 2017 00:00:00 GMT http://memoria.ifrn.edu.br/handle/1044/1864 2017-06-01T00:00:00Z