Monitorización de la oxidación del aceite de semillas de sacha inchi (Plukenetia volubilis) suplementado con extractos de vainas de tara (Caesalpinia spinosa) mediante técnicas convencionales y MIR

Autores/as

DOI:

https://doi.org/10.3989/gya.0228191

Palabras clave:

Aceite, Infrarrojo medio, Oxidación, Sacha inchi, Tara

Resumen


Este trabajo se centra en la caracterización de la oxidación de aceites de sacha inchi (Plukenetia volubilis) en condiciones aceleradas a 60 ºC durante 15 días. Se monitorean cinco muestras: tres suplementadas con 200 ppm de extractos no hidrolizados o par­cialmente hidrolizados (durante 4 y 9 horas) de vainas de tara (Caesalpinia spinosa), una sin antioxidante y otra con 200 ppm de BHT. Se utilizan y comparan varias técnicas convencionales (tiempo de inducción, índice de peróxido, ácido dienoico conjugado, índice de p-anisidina, ácidos grasos insaturados totales y contenido de ácido α-linolénico) y la espectroscopía MIR junto con herramientas quimiométricas. Los resultados revelan que, cualquiera que sea el antioxidante agregado, el aceite de sacha inchi es bastante estable a lo largo del tiempo. Los resultados también seña­lan que los extractos de las vainas de tara, principalmente aquellos parcialmente hidrolizados, son más eficientes que el BHT contra la oxidación del aceite hasta los 7 días. Finalmente, el trabajo muestra que la espectroscopía MIR se presenta como una técnica alternativa interesante para el monitoreo de la oxidación del aceite de sacha inchi.

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Citas

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Publicado

2020-06-30

Cómo citar

1.
Herman C, Pompeu DR, Campos D, Larondelle Y, Rogez H, Baeten V. Monitorización de la oxidación del aceite de semillas de sacha inchi (Plukenetia volubilis) suplementado con extractos de vainas de tara (Caesalpinia spinosa) mediante técnicas convencionales y MIR. Grasas aceites [Internet]. 30 de junio de 2020 [citado 27 de julio de 2024];71(2):e359. Disponible en: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1826

Número

Sección

Investigación