Bibliographic citations
Salaverry, C., (2024). Antioxidantes, capacidad antioxidante, estabilidad oxidativa de cuatro variedades de Aceite de Oliva extravirgen y calidad sensorial en almacenamiento [Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/6528
Salaverry, C., Antioxidantes, capacidad antioxidante, estabilidad oxidativa de cuatro variedades de Aceite de Oliva extravirgen y calidad sensorial en almacenamiento []. PE: Universidad Nacional Agraria La Molina; 2024. https://hdl.handle.net/20.500.12996/6528
@mastersthesis{renati/242790,
title = "Antioxidantes, capacidad antioxidante, estabilidad oxidativa de cuatro variedades de Aceite de Oliva extravirgen y calidad sensorial en almacenamiento",
author = "Salaverry Copaja, Claudia Carolina",
publisher = "Universidad Nacional Agraria La Molina",
year = "2024"
}
The antioxidant content, antioxidant capacity, oxidative stability and sensory quality of extra virgin olive oil from four varieties of olive trees grown in the district of La Yarada, Los Palos, Tacna were evaluated. A physicochemical analysis was carried out that included the measurement of free acidity in accordance with Peruvian regulations, the determination of the peroxide index following local regulations and obtaining the k270 factor using the method described in COI/T20/Doc. 19. The polyphenols were carried out using the FolinCiocalteu technique and the antioxidant capacity was carried out using the ABTS methodology for olive oil, the color was carried out using the CIELAB colorimeter methodology, chlorophyll and carotenoids were carried out by the colorimeter method. Finally, regarding the sensory analysis, the regulations of the International Olive Oil Council were followed, which establishes the steps for this evaluation. The results obtained were evaluated using a completely randomized design for each experiment. The design included a single independent variable in this case extra virgin olive oil, treatment T1 was considered the Sevillian variety, T2 the Frantoio variety, treatment T3 the Coratina variety and T4 the Manzanilla variety. In conclusion, the frantoio variety presented the highest polyphenol content with 131.9575 ± 0.53 mg EAG/kg, in terms of antioxidant capacity the frantoio variety had the best capacity with 0.796 ± 0.01 mmol EAG/kg. According to the CIELAB factors, green and dark yellow colors with little intensity were evident. Likewise, it was evident that the frantoio variety had greater pigmentation in both chlorophylls and carotenoids. Regarding the quality of the oil, all of them were below the permissible limits and the sensory quality showed better attributes as the days went by for the Sevillian variety. Finally, the Index and induction period (OSI), in which the Sevillana and Frantoio varieties are found, are statistically similar in terms of oxidative stability and are the ones with the best stability compared to the Coratina and Manzanilla varieties.
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