https://repositorio.ifg.edu.br/handle/prefix/54 2026-10-12T01:18:39Z https://repositorio.ifg.edu.br/handle/prefix/2764 Título: Elaboração de biofilmes de acetato de celulose com incorporação de extrato de alecrim e extrato da casca de uva Autor(es): Destefano Filho, Eduardo; Silva, Estanley José Oliveira da Primeiro Orientador: Turella, Camila Cheker Brandao Abstract: The increasing use of petroleum-based plastic packaging has caused serious environmental impacts, driving the search for sustainable and biodegradable alternatives. Cellulose acetate stands out among biodegradable materials for its mechanical properties, transparency, and stability, making it a suitable base for developing active films containing natural compounds. Therefore, this study developed cellulose acetate biofilms incorporated with rosemary (Rosmarinus officinalis L.) and grape peel (Vitis vinifera) extracts, evaluating their physical, mechanical. The films were produced by the casting method using cellulose acetate, glycerol, acetone, and natural extracts. Thickness and tensile tests were carried out under a completely randomized design. The results showed that the incorporation of the extracts significantly affected the mechanical properties of the films. The rosemary extract provided greater elongation (13.94%) compared to the control (4.09%), indicating increased flexibility, possibly due to the plasticizing effect of phenolic and terpenoid compounds. The grape peel extract reduced tensile strength but maintained a homogeneous appearance and absence of visible defects, suggesting good structural uniformity. Regarding thickness, no significant differences were observed among treatments. Therefore, incorporating natural extracts of rosemary and grape peel into cellulose acetate films proved to be a promising alternative for obtaining biodegradable and active packaging materials. Editor: Insitituto Federal de Educação, Ciência e Tecnologia de Goiás Tipo: Trabalho de Conclusão de Curso 2026-02-19T00:00:00Z https://repositorio.ifg.edu.br/handle/prefix/2702 Título: β - Cariofileno no óleo volátil da espécies Cannabis Sativa L.: revisão sistemática Autor(es): Ferreira, Giovanna Cristina Ribeiro Primeiro Orientador: Santos, Thiffanne Pereira dos Abstract: Plants have been used to treat human diseases since the earliest civilizations. It was only by the end of the 18th century that a solid scientific approach to the study of plant secondary metabolites became feasible. In the literature, numerous studies have reported pharmacological activities such as analgesic, anti-inflammatory, antitumor, fungicidal, bactericidal, and antimalarial of volatile oils extracted from various medicinal plant species belonging to different botanical families, including Rutaceae, Moraceae, Lauraceae, Papilionoideae, Leguminosae, Cannabaceae, among others. This study aimed to investigate the major chemical compounds present in the volatile oil (OV) extracted by hydrodistillation from different parts of the Cannabis sativa L. plant (leaf, root, and flower). Searches were conducted in the scientific literature databases Web of Science, Scielo, Scopus, and Google Scholar, covering studies published between 2000 and 2021, in order to describe the chemical profile of the volatile oils (OV) found in Cannabis sativa L. The study presents different types of chemical compounds identified in the OV of C. sativa L. and highlights the main major constituents. Thus, this work describes the process of volatile oil (OV) extraction from the plant and the analysis of its chemical profile, allowing the identification of the predominant compounds present in the oil. Editor: Insitituto Federal de Educação, Ciência e Tecnologia de Goiás Tipo: Trabalho de Conclusão de Curso 2025-10-10T00:00:00Z https://repositorio.ifg.edu.br/handle/prefix/2693 Título: Utilização do bagaço de cana de açúcar (Saccharum officinarum), e a casca de mandioca (Manihot esculenta Crantz), na adsorção de corantes Autor(es): Almeida, André Simões Primeiro Orientador: Braga, Elaine Alves de Faria Editor: Insitituto Federal de Educação, Ciência e Tecnologia de Goiás Tipo: Trabalho de Conclusão de Curso 2025-12-05T00:00:00Z https://repositorio.ifg.edu.br/handle/prefix/2692 Título: Utilização das sementes de melão (Cucumis melo, L), e melancia (Citrullus lanatus), in natura, na adsorção de corantes em soluções aquosas Autor(es): Silva, Jailane de Sousa Primeiro Orientador: Braga, Elaine Alves Faria Editor: Insitituto Federal de Educação, Ciência e Tecnologia de Goiás Tipo: Trabalho de Conclusão de Curso 2025-12-05T00:00:00Z