Produção de sabonete líquido a partir de óleo de fritura coletado da lanchonete do CT na UFPB

Abstract

Waste oil is one of many materials discarded by the community, which raises significant concerns due to its slow degradation and the adverse environmental impacts it causes. Inadequate disposal of this waste is particularly critical in university environments, fast food establishments, restaurants and food industries, where inadequate disposal is common, contributing to environmental pollution. However, there are sustainable alternatives for reusing this oil, such as its application in the production of personal hygiene products, a practice that not only saves resources but also avoids substantial environmental damage. In this context, this project was developed with the objective of producing liquid soap from residual frying oil collected in cafeterias at the Federal University of Paraíba. The oil was characterized through acidity and saponification analyses, the results of which confirmed the efficiency of the deodorization process. Based on these analyses, formulations for the production of liquid soap were developed, followed by analyzes of physicochemical parameters, including pH, density, viscosity and foam formation. Among the samples analyzed, sample II stood out as the best formulation in terms of stability, foam formation, pH and viscosity. However, when compared to commercial liquid soaps, sample II did not present the same physical-chemical characteristics. Despite this, the recyclable formulation demonstrated satisfactory effectiveness in its function.