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Este trabalho objetivou a caracterização físico-química e microbiológica da geleia de laranja enriquecida com aveia. As laranjas foram selecionadas manualmente, considerando-se ausência de manchas ou defeitos. As geleias foram elaboradas com a proporção de 50%/50%, (polpa/sacarose) enriquecida com teor de aveia em três concentrações, sendo 1,5%, 3% e 4,5%. Após o processamento das geleias foram avaliadas quanto ao teor de umidade, pH, vitamina C, sólidos solúveis totais e análise microbiológica. Diante dos resultados obtidos das análises físico-química, verificou-se que enriquecimento da geleia de laranja com aveia influenciou significativamente nos resultados de pH e sólidos solúveis totais °Brix. Os resultados da análise microbiológica mostraram-se todas ausentes de Coliformes a 45°C (NMP g-1), apresentaram-se dentro dos parâmetros permitidos pela  RDC n°12, da ANVISA. Conclui-se que a laranja e a aveia tem influência direta nos resultados das composições físico-química e microbiológica. Portanto, a geleia pode ser realizada com boas perspectivas para a aplicação de frutas como a laranja e cereais como a aveia.

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The objective of this study was to evaluate the influence of addition of microencapsulated natural extracts of aromatic herbs in comparison with synthetic antioxidants on fatty acids profile of different meat products (restructured product of Tilapia mechanically separated fish meat (RP) and Fresh pork sausage (FS) stored under freezing and cold storage. Synthetic antioxidant sodium erythorbate was used in the RP and butylated hydroxytoluene (BHT) was used in the FS. Natural oregano extract (Origanum vulgare) was used in the RP, while the rosemary extract (Rosmarinus officinalis) was used in the FS. The fatty acid profiles of each formulation were obtained by gas chromatography (GC-MS). The oleic acid was the most abundant compound in both evaluated products, also, during the observed storage period there was an increase in SFA and MUFA composition (p < 0.05) in all the treatments. However, the treatments with addition of synthetic antioxidant and microcapsules loaded with different content of aromatic herb extracts showed similar behavior. Moreover, the addition of microencapsulated aromatic herb extracts increased the content of PUFA, improving the nutritional quality indexes in both RP and FS. Our results infer that the addition of oregano and rosemary extracts have antioxidant potential equivalent to synthetic antioxidants.